Alexander Katz
Country
USA
Birth Year
1996
Gender
M
Title
International Master
FIDE ID
2039796
FIDE Rating
2358
USCF ID
12885132
USCF Rating
2444
FIDE Rating Graph
USCF Rating Graph
Games
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025-12-30 | 35th North American Open | Las Vegas USA | 9.4 | Koustav Chatterjee | Alexander Katz | 1/2-1/2 | 45 | Open |
| 2 | 2025-12-29 | 35th North American Open | Las Vegas USA | 8.7 | Alexander Katz | Joseph Girel | 1-0 | 59 | Open |
| 3 | 2025-12-29 | 35th North American Open | Las Vegas USA | 7.12 | Alexander Katz | Anish Vivekananthan | 1-0 | 45 | Open |
| 4 | 2025-12-28 | 35th North American Open | Las Vegas USA | 5.11 | Amilal Munkhdalai | Alexander Katz | 1/2-1/2 | 22 | Open |
| 5 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 9 | Guha Mitrabha | Alexander Katz | 1-0 | 47 | Open |
| 6 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 8 | Etienne Bacrot | Alexander Katz | 0-1 | 32 | Open |
| 7 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 7 | Alexander Katz | Steven Zierk | 1-0 | 31 | Open |
| 8 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 6 | Ngoc Truong Son Nguyen | Alexander Katz | 1-0 | 52 | Open |
| 9 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 5 | Alexander Katz | Aryan Tari | 1-0 | 47 | Open |
| 10 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 4 | Alexander Katz | Yusuf Baran Cevizci | 1-0 | 25 | Open |
| 11 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 3 | Rasmus Svane | Alexander Katz | 1-0 | 53 | Open |
| 12 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 2 | Jan Enrique Zepeda Berlanga | Alexander Katz | 0-1 | 31 | Open |
| 13 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 1 | Alexander Katz | Ciprian-Mihai Comsa | 1-0 | 33 | Open |
| 14 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 10 | Alexander Katz | Arystanbek Urazayev | 0-1 | 54 | Open |
| 15 | 2025-07-13 | Marshall Summer Inv GMB | New York USA | 9.4 | Alexander Katz | Gabor Nagy | 1/2-1/2 | 15 | Open |
| 16 | 2025-07-12 | Marshall Summer Inv GMB | New York USA | 8.2 | Josiah Stearman | Alexander Katz | 1/2-1/2 | 29 | Open |
| 17 | 2025-07-12 | Marshall Summer Inv GMB | New York USA | 7.5 | Alexander Katz | Ryan Sun | 1-0 | 57 | Open |
| 18 | 2025-07-11 | Marshall Summer Inv GMB | New York USA | 6.1 | Bryan Enming Lin | Alexander Katz | 1/2-1/2 | 27 | Open |
| 19 | 2025-07-10 | Marshall Summer Inv GMB | New York USA | 5.5 | Ethan Sheehan | Alexander Katz | 0-1 | 38 | Open |
| 20 | 2025-07-10 | Marshall Summer Inv GMB | New York USA | 4.2 | Alexander Katz | Shankar Gauri | 1/2-1/2 | 54 | Open |
| 21 | 2025-07-09 | Marshall Summer Inv GMB | New York USA | 3.4 | Avi Harrison Kaplan | Alexander Katz | 1-0 | 38 | Open |
| 22 | 2025-07-09 | Marshall Summer Inv GMB | New York USA | 2.3 | Alexander Katz | Vojtech Plat | 0-1 | 28 | Open |
| 23 | 2025-07-08 | Marshall Summer Inv GMB | New York USA | 1.3 | Cristhian Cruz | Alexander Katz | 1-0 | 32 | Open |
| 24 | 2025-07-06 | 53rd Annual World Open | Philadelphia USA | 9.18 | Alexander Katz | Dylan Tang | 1-0 | 53 | Open |
| 25 | 2025-07-05 | 53rd Annual World Open | Philadelphia USA | 6.9 | Razvan Preotu | Alexander Katz | 1-0 | 58 | Open |
| 26 | 2025-07-04 | 53rd Annual World Open | Philadelphia USA | 4.9 | Emilio Cordova | Alexander Katz | 1/2-1/2 | 42 | Open |
| 27 | 2025-06-08 | National Open 2025 | Las Vegas USA | 9.5 | Arman Mikaelyan | Alexander Katz | 1-0 | 33 | Open |
| 28 | 2025-06-08 | National Open 2025 | Las Vegas USA | 8.16 | Alexander Katz | Dina Belenkaya | 1-0 | 62 | Open |
| 29 | 2025-06-06 | National Open 2025 | Las Vegas USA | 5.28 | Gokhale Rishabh Chandrashekhar | Alexander Katz | 1-0 | 53 | Open |
| 30 | 2025-06-06 | National Open 2025 | Las Vegas USA | 4.14 | Alexander Katz | Lucius Melillo | 0-1 | 40 | Open |
| 31 | 2025-06-05 | National Open 2025 | Las Vegas USA | 3.27 | Luke Widjaja | Alexander Katz | 1/2-1/2 | 43 | Open |
| 32 | 2025-06-05 | National Open 2025 | Las Vegas USA | 2.21 | Alexander Katz | Gabriela Antova | 1/2-1/2 | 25 | Open |
| 33 | 2025-06-04 | National Open 2025 | Las Vegas USA | 1.24 | Jayden Wu | Alexander Katz | 0-1 | 32 | Open |
| 34 | 2025-05-26 | Cherry Blossom Classic | Sterling, VA USA | 9.5 | Tyson Brady | Alexander Katz | 1/2-1/2 | 20 | Open |
| 35 | 2025-05-26 | Cherry Blossom Classic | Sterling, VA USA | 8.6 | Kevin Wang | Alexander Katz | 1/2-1/2 | 28 | Open |
| 36 | 2025-05-25 | Cherry Blossom Classic | Sterling, VA USA | 7.4 | Alexander Katz | Gil Popilski | 1/2-1/2 | 48 | Open |
| 37 | 2025-05-25 | Cherry Blossom Classic | Sterling, VA USA | 6.7 | Alexander Katz | Andrew Samuelson | 1-0 | 71 | Open |
| 38 | 2025-05-24 | Cherry Blossom Classic | Sterling, VA USA | 5.3 | Titas Stremavicius | Alexander Katz | 1-0 | 46 | Open |
| 39 | 2025-05-24 | Cherry Blossom Classic | Sterling, VA USA | 4.6 | Alexander Katz | Valeri Semenov | 1-0 | 61 | Open |
| 40 | 2025-05-23 | Cherry Blossom Classic | Sterling, VA USA | 3.7 | Matthew Guo Diao | Alexander Katz | 1/2-1/2 | 31 | Open |
| 41 | 2025-05-23 | Cherry Blossom Classic | Sterling, VA USA | 2.6 | Alexander Katz | Theodore Slade | 1/2-1/2 | 17 | Open |
| 42 | 2025-05-22 | Cherry Blossom Classic | Sterling, VA USA | 1.7 | Sophie Li | Alexander Katz | 0-1 | 40 | Open |
| 43 | 2025-04-27 | IV Menorca Open A 2025 | Ciutadella de Menorca ESP | 9.2 | Alexander Katz | Diego Macias Pino | 0-1 | 40 | Open |
| 44 | 2025-04-23 | IV Menorca Open A 2025 | Ciutadella de Menorca ESP | 2.7 | Vasyl Ivanchuk | Alexander Katz | 1-0 | 55 | Open |
| 45 | 2025-04-21 | 9th Semana Santa Alicante | San Vicente ESP | 9.22 | Alexander Katz | Dylan Isidro Berdayes Ason | 1/2-1/2 | 39 | Open |
| 46 | 2025-04-08 | Titled Tue 8th Apr Early | chess.com INT | 7 | Alexander Katz | Devina Devagharan | 1-0 | 33 | Open |
| 47 | 2025-04-08 | Titled Tue 8th Apr Early | chess.com INT | 6 | Olexandr Bortnyk | Alexander Katz | 1-0 | 25 | Open |
| 48 | 2025-04-08 | Titled Tue 8th Apr Early | chess.com INT | 5 | Alain Fayard | Alexander Katz | 0-1 | 31 | Open |
| 49 | 2025-04-08 | Titled Tue 8th Apr Early | chess.com INT | 4 | Alexander Katz | Jonas Buhl Bjerre | 0-1 | 38 | Open |
| 50 | 2025-04-08 | Titled Tue 8th Apr Early | chess.com INT | 3 | Alexander Katz | Jules Moussard | 0-1 | 52 | Open |
| 51 | 2025-04-08 | Titled Tue 8th Apr Late | chess.com INT | 3 | Alexander Katz | Mariano Mayans Calvo | 0-1 | 60 | Open |
| 52 | 2025-04-08 | Titled Tue 8th Apr Late | chess.com INT | 2 | Vojislav Milanovic | Alexander Katz | 0-1 | 42 | Open |
| 53 | 2025-04-08 | Titled Tue 8th Apr Early | chess.com INT | 2 | Marco Materia | Alexander Katz | 0-1 | 44 | Open |
| 54 | 2025-04-08 | Titled Tue 8th Apr Early | chess.com INT | 1 | Mateo Rodriguez Polo | Alexander Katz | 0-1 | 58 | Open |
| 55 | 2025-03-25 | Titled Tue 25th Mar Early | chess.com INT | 9 | Adrian Martinez Fernandez | Alexander Katz | 1-0 | 74 | Open |
| 56 | 2025-03-25 | Titled Tue 25th Mar Late | chess.com INT | 9 | Alexander Katz | Kjetil A. Lie | 0-1 | 66 | Open |
| 57 | 2025-03-25 | Titled Tue 25th Mar Late | chess.com INT | 8 | Jose Carlos Ibarra Jerez | Alexander Katz | 0-1 | 43 | Open |
| 58 | 2025-03-25 | Titled Tue 25th Mar Early | chess.com INT | 8 | Alexander Katz | Ian Dudley | 1-0 | 43 | Open |
| 59 | 2025-03-25 | Titled Tue 25th Mar Early | chess.com INT | 7 | Bozhena Piddubna | Alexander Katz | 1-0 | 62 | Open |
| 60 | 2025-03-25 | Titled Tue 25th Mar Late | chess.com INT | 7 | Alexandr Fier | Alexander Katz | 0-1 | 58 | Open |
| 61 | 2025-03-25 | Titled Tue 25th Mar Early | chess.com INT | 6 | Alexander Katz | Tommi Luukkonen | 1-0 | 25 | Open |
| 62 | 2025-03-25 | Titled Tue 25th Mar Late | chess.com INT | 6 | Alexander Katz | Julian Groetzbach | 1-0 | 27 | Open |
| 63 | 2025-03-25 | Titled Tue 25th Mar Late | chess.com INT | 5 | Ryan Amburgy | Alexander Katz | 1-0 | 79 | Open |
| 64 | 2025-03-25 | Titled Tue 25th Mar Early | chess.com INT | 5 | Alexander Reprintsev | Alexander Katz | 1-0 | 37 | Open |
| 65 | 2025-03-25 | Titled Tue 25th Mar Late | chess.com INT | 4 | Alexander Katz | Conrad Thake | 1-0 | 65 | Open |
| 66 | 2025-03-25 | Titled Tue 25th Mar Early | chess.com INT | 4 | Alexander Katz | Evgeny Ermolaev | 1-0 | 37 | Open |
| 67 | 2025-03-25 | Titled Tue 25th Mar Late | chess.com INT | 3 | Alexander Katz | Devina Devagharan | 1-0 | 38 | Open |
| 68 | 2025-03-25 | Titled Tue 25th Mar Early | chess.com INT | 3 | Michal Kopczynski | Alexander Katz | 1-0 | 44 | Open |
| 69 | 2025-03-25 | Titled Tue 25th Mar Late | chess.com INT | 2 | Andrew Tang | Alexander Katz | 1-0 | 32 | Open |
| 70 | 2025-03-25 | Titled Tue 25th Mar Early | chess.com INT | 2 | Alexander Katz | Magnus Carlsen | 0-1 | 36 | Open |
| 71 | 2025-03-25 | Titled Tue 25th Mar Early | chess.com INT | 1 | Evgeniy Burmakin | Alexander Katz | 0-1 | 50 | Open |
| 72 | 2025-03-25 | Titled Tue 25th Mar Late | chess.com INT | 1 | Alexander Katz | Artemii Khanbutaev | 1-0 | 39 | Open |
| 73 | 2025-03-25 | Titled Tue 25th Mar Late | chess.com INT | 11 | Pablo Salinas Herrera | Alexander Katz | 1/2-1/2 | 48 | Open |
| 74 | 2025-03-25 | Titled Tue 25th Mar Early | chess.com INT | 11 | Andrei Olhovik | Alexander Katz | 0-1 | 38 | Open |
| 75 | 2025-03-25 | Titled Tue 25th Mar Early | chess.com INT | 10 | Alexander Katz | Viktor N. Parfenov | 1-0 | 57 | Open |
| 76 | 2025-03-25 | Titled Tue 25th Mar Late | chess.com INT | 10 | Maciej Sroczynski | Alexander Katz | 0-1 | 42 | Open |
| 77 | 2025-03-11 | Titled Tue 11th Mar Late | chess.com INT | 9 | Alexander Katz | Mathias Philipp | 0-1 | 35 | Open |
| 78 | 2025-03-11 | Titled Tue 11th Mar Late | chess.com INT | 8 | Calix Marchand | Alexander Katz | 1/2-1/2 | 75 | Open |
| 79 | 2025-03-11 | Titled Tue 11th Mar Late | chess.com INT | 7 | Alexander Katz | Johan-Sebastian Christiansen | 0-1 | 51 | Open |
| 80 | 2025-03-11 | Titled Tue 11th Mar Late | chess.com INT | 6 | Kacper Drozdowski | Alexander Katz | 1-0 | 64 | Open |
| 81 | 2025-03-11 | Titled Tue 11th Mar Late | chess.com INT | 5 | Alexander Katz | Jose Carlos Ibarra Jerez | 1-0 | 36 | Open |
| 82 | 2025-03-11 | Titled Tue 11th Mar Late | chess.com INT | 4 | Alexander Katz | Eduardo Cesar Da Matta | 1-0 | 26 | Open |
| 83 | 2025-03-11 | Titled Tue 11th Mar Late | chess.com INT | 3 | Ilay Zakin | Alexander Katz | 0-1 | 69 | Open |
| 84 | 2025-03-11 | Titled Tue 11th Mar Late | chess.com INT | 2 | Alexander Katz | Tariq Yue | 1-0 | 65 | Open |
| 85 | 2025-03-11 | Titled Tue 11th Mar Late | chess.com INT | 1 | Rahul Babu | Alexander Katz | 1-0 | 66 | Open |
| 86 | 2025-03-11 | Titled Tue 11th Mar Late | chess.com INT | 11 | Alexander Katz | Lucius Melillo | 1-0 | 52 | Open |
| 87 | 2025-03-11 | Titled Tue 11th Mar Late | chess.com INT | 10 | Irine Kharisma Sukandar | Alexander Katz | 0-1 | 31 | Open |
| 88 | 2025-03-04 | Titled Tue 4th Mar Late | chess.com INT | 7 | Alexander Katz | Jacek Tomczak | 0-1 | 37 | Open |
| 89 | 2025-03-04 | Titled Tue 4th Mar Late | chess.com INT | 6 | Wesal Moshtael | Alexander Katz | 0-1 | 28 | Open |
| 90 | 2025-03-04 | Titled Tue 4th Mar Late | chess.com INT | 5 | Alexander Katz | Kacper Drozdowski | 0-1 | 45 | Open |
| 91 | 2025-03-04 | Titled Tue 4th Mar Late | chess.com INT | 4 | Murad Ibrahimli | Alexander Katz | 1/2-1/2 | 58 | Open |
| 92 | 2025-03-04 | Titled Tue 4th Mar Late | chess.com INT | 3 | Alexander Katz | Rasmus Svane | 1-0 | 64 | Open |
| 93 | 2025-03-04 | Titled Tue 4th Mar Late | chess.com INT | 2 | Alexander Katz | Felix Rose | 1-0 | 27 | Open |
| 94 | 2025-03-04 | Titled Tue 4th Mar Late | chess.com INT | 1 | Daniel Melamed | Alexander Katz | 0-1 | 52 | Open |
| 95 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 6 | Alexander Katz | Aref Vasli | 0-1 | 52 | Open |
| 96 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 5 | Hasan Atis | Alexander Katz | 1-0 | 58 | Open |
| 97 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 4 | Alexander Katz | David Anton Guijarro | 0-1 | 45 | Open |
| 98 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 3 | Alexander Katz | Jules Moussard | 1-0 | 33 | Open |
| 99 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 2 | Oriol Serra Canals | Alexander Katz | 0-1 | 41 | Open |
| 100 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 1 | Alexander Katz | Evan Rabin | 1-0 | 39 | Open |
| 101 | 2025-01-20 | Blitz Fuel Inv GMA 2025 | New York USA | 9.1 | Alexander Katz | Dimitar Mardov | 1/2-1/2 | 15 | Open |
| 102 | 2025-01-20 | Blitz Fuel Inv GMA 2025 | New York USA | 8.5 | Robert Shlyakhtenko | Alexander Katz | 1-0 | 37 | Open |
| 103 | 2025-01-19 | Blitz Fuel Inv GMA 2025 | New York USA | 7.2 | Alexander Katz | Nico Chasin | 0-1 | 55 | Open |
| 104 | 2025-01-19 | Blitz Fuel Inv GMA 2025 | New York USA | 6.4 | Ilan Schnaider | Alexander Katz | 1/2-1/2 | 47 | Open |
| 105 | 2025-01-18 | Blitz Fuel Inv GMA 2025 | New York USA | 5.3 | Alexander Katz | Robby Kevlishvili | 0-1 | 78 | Open |
| 106 | 2025-01-18 | Blitz Fuel Inv GMA 2025 | New York USA | 4.3 | Emilio Cordova | Alexander Katz | 1/2-1/2 | 26 | Open |
| 107 | 2025-01-17 | Blitz Fuel Inv GMA 2025 | New York USA | 3.4 | Alexander Katz | Aleksandr Ostrovskiy | 1-0 | 61 | Open |
| 108 | 2025-01-17 | Blitz Fuel Inv GMA 2025 | New York USA | 2.2 | Alder Escobar Forero | Alexander Katz | 0-1 | 26 | Open |
| 109 | 2025-01-16 | Blitz Fuel Inv GMA 2025 | New York USA | 1.5 | Alexander Katz | Evan Park | 0-1 | 44 | Open |
| 110 | 2025-01-14 | Titled Tue 14th Jan Early | chess.com INT | 1 | Alexander Katz | Moritz Gressmann | 0-1 | 18 | Open |
| 111 | 2024-12-28 | 34th North American Open | Las Vegas USA | 6.18 | Sung Ho Yim | Alexander Katz | 1-0 | 28 | Open |
| 112 | 2024-12-28 | 34th North American Open | Las Vegas USA | 5.4 | Alexander Katz | Yasser Quesada Perez | 0-1 | 47 | Open |
| 113 | 2024-12-27 | 34th North American Open | Las Vegas USA | 4.6 | Rose Atwell | Alexander Katz | 1/2-1/2 | 86 | Open |
| 114 | 2024-12-27 | 34th North American Open | Las Vegas USA | 3.16 | Alexander Katz | Aryan Gutla | 1-0 | 33 | Open |
| 115 | 2024-12-26 | 34th North American Open | Las Vegas USA | 2.15 | Megan Lee | Alexander Katz | 1/2-1/2 | 14 | Open |
| 116 | 2024-11-19 | Titled Tue 19th Nov Late | chess.com INT | 8 | Alexander Katz | Witold Klepek | 0-1 | 37 | Open |
| 117 | 2024-11-19 | Titled Tue 19th Nov Late | chess.com INT | 7 | Francesco Bettalli | Alexander Katz | 1/2-1/2 | 71 | Open |
| 118 | 2024-11-19 | Titled Tue 19th Nov Late | chess.com INT | 6 | Alexander Katz | Vinzent Spitzl | 1-0 | 14 | Open |
| 119 | 2024-11-19 | Titled Tue 19th Nov Late | chess.com INT | 5 | Alexander Katz | Cristi Machidon | 0-1 | 62 | Open |
| 120 | 2024-11-19 | Titled Tue 19th Nov Late | chess.com INT | 4 | David Anton Guijarro | Alexander Katz | 1-0 | 59 | Open |
| 121 | 2024-11-19 | Titled Tue 19th Nov Late | chess.com INT | 3 | Bartosz Przybylski | Alexander Katz | 0-1 | 28 | Open |
| 122 | 2024-11-19 | Titled Tue 19th Nov Late | chess.com INT | 2 | Alexander Katz | 2056836 | 1/2-1/2 | 78 | Open |
| 123 | 2024-11-19 | Titled Tue 19th Nov Late | chess.com INT | 1 | Ioan Rees | Alexander Katz | 0-1 | 22 | Open |
| 124 | 2024-11-12 | Titled Tue 12th Nov Late | chess.com INT | 9 | Boris Abrashkin | Alexander Katz | 0-1 | 71 | Open |
| 125 | 2024-11-12 | Titled Tue 12th Nov Early | chess.com INT | 9 | Alexander Katz | Alexandr Triapishko | 0-1 | 30 | Open |
| 126 | 2024-11-12 | Titled Tue 12th Nov Early | chess.com INT | 8 | Alexander Katz | Vladimir Mikhailovsky | 1-0 | 30 | Open |
| 127 | 2024-11-12 | Titled Tue 12th Nov Late | chess.com INT | 8 | Alexander Katz | Alvar Alonso Rosell | 0-1 | 29 | Open |
| 128 | 2024-11-12 | Titled Tue 12th Nov Early | chess.com INT | 7 | David Paravyan | Alexander Katz | 1-0 | 37 | Open |
| 129 | 2024-11-12 | Titled Tue 12th Nov Late | chess.com INT | 7 | Alexander Katz | Steven Zierk | 0-1 | 26 | Open |
| 130 | 2024-11-12 | Titled Tue 12th Nov Late | chess.com INT | 6 | Jose Carlos Ibarra Jerez | Alexander Katz | 1/2-1/2 | 65 | Open |
| 131 | 2024-11-12 | Titled Tue 12th Nov Early | chess.com INT | 6 | Alexander Katz | Aleksandr Rakhmanov | 1-0 | 90 | Open |
| 132 | 2024-11-12 | Titled Tue 12th Nov Late | chess.com INT | 5 | Alexander Katz | Michal Kopczynski | 1-0 | 38 | Open |
| 133 | 2024-11-12 | Titled Tue 12th Nov Early | chess.com INT | 5 | Nikoloz Petriashvili | Alexander Katz | 0-1 | 30 | Open |
| 134 | 2024-11-12 | Titled Tue 12th Nov Early | chess.com INT | 4 | Vrashank Chouhan | Alexander Katz | 0-1 | 22 | Open |
| 135 | 2024-11-12 | Titled Tue 12th Nov Late | chess.com INT | 4 | Henning Holinka | Alexander Katz | 0-1 | 55 | Open |
| 136 | 2024-11-12 | Titled Tue 12th Nov Late | chess.com INT | 3 | Raunak Sadhwani | Alexander Katz | 1-0 | 51 | Open |
| 137 | 2024-11-12 | Titled Tue 12th Nov Early | chess.com INT | 3 | Alexander Katz | Samvel Ter-Sahakyan | 0-1 | 64 | Open |
| 138 | 2024-11-12 | Titled Tue 12th Nov Late | chess.com INT | 2 | Alexander Katz | Robert Ernst | 1-0 | 32 | Open |
| 139 | 2024-11-12 | Titled Tue 12th Nov Early | chess.com INT | 2 | Alexander Katz | Volodymyr Vusatiuk | 1-0 | 33 | Open |
| 140 | 2024-11-12 | Titled Tue 12th Nov Early | chess.com INT | 1 | Kirill Shoshin | Alexander Katz | 0-1 | 30 | Open |
| 141 | 2024-11-12 | Titled Tue 12th Nov Late | chess.com INT | 1 | Maciej Sroczynski | Alexander Katz | 0-1 | 32 | Open |
| 142 | 2024-11-12 | Titled Tue 12th Nov Late | chess.com INT | 11 | Ronan Le Goff | Alexander Katz | 0-1 | 33 | Open |
| 143 | 2024-11-12 | Titled Tue 12th Nov Early | chess.com INT | 11 | Alexander Katz | Kacper Ugorek | 1-0 | 31 | Open |
| 144 | 2024-11-12 | Titled Tue 12th Nov Late | chess.com INT | 10 | Alexander Katz | Jude Shearsby | 0-1 | 28 | Open |
| 145 | 2024-11-12 | Titled Tue 12th Nov Early | chess.com INT | 10 | Havard Haug | Alexander Katz | 1-0 | 26 | Open |
| 146 | 2024-10-29 | Titled Tue 29th Oct Early | chess.com INT | 9 | Alexander Katz | Daniel Taboas Rodriguez | 0-1 | 34 | Open |
| 147 | 2024-10-29 | Titled Tue 29th Oct Late | chess.com INT | 9 | Alexander Katz | Ricardo D. D`Arruda | 1/2-1/2 | 92 | Open |
| 148 | 2024-10-29 | Titled Tue 29th Oct Late | chess.com INT | 8 | Alexander Katz | Igor Glek | 0-1 | 47 | Open |
| 149 | 2024-10-29 | Titled Tue 29th Oct Early | chess.com INT | 8 | Gata Kamsky | Alexander Katz | 1-0 | 52 | Open |
| 150 | 2024-10-29 | Titled Tue 29th Oct Early | chess.com INT | 7 | Sanan Sjugirov | Alexander Katz | 1/2-1/2 | 138 | Open |
| 151 | 2024-10-29 | Titled Tue 29th Oct Late | chess.com INT | 7 | V Pranav | Alexander Katz | 1-0 | 25 | Open |
| 152 | 2024-10-29 | Titled Tue 29th Oct Early | chess.com INT | 6 | Alexander Katz | Alexander Rustemov | 1-0 | 50 | Open |
| 153 | 2024-10-29 | Titled Tue 29th Oct Late | chess.com INT | 6 | Nguyen Hong Nhung | Alexander Katz | 0-1 | 34 | Open |
| 154 | 2024-10-29 | Titled Tue 29th Oct Late | chess.com INT | 5 | Alexander Katz | Levente Miszler | 1-0 | 70 | Open |
| 155 | 2024-10-29 | Titled Tue 29th Oct Early | chess.com INT | 5 | Alexander Katz | Samvel Ter-Sahakyan | 1/2-1/2 | 53 | Open |
| 156 | 2024-10-29 | Titled Tue 29th Oct Late | chess.com INT | 4 | Kaiqi Yang | Alexander Katz | 1-0 | 36 | Open |
| 157 | 2024-10-29 | Titled Tue 29th Oct Early | chess.com INT | 4 | Klementy Sychev | Alexander Katz | 1-0 | 26 | Open |
| 158 | 2024-10-29 | Titled Tue 29th Oct Early | chess.com INT | 3 | Alexander Katz | Vladimir Seliverstov | 1-0 | 36 | Open |
| 159 | 2024-10-29 | Titled Tue 29th Oct Late | chess.com INT | 3 | Alexander Katz | Matheus Mendes Domingues Ribeiro | 1-0 | 29 | Open |
| 160 | 2024-10-29 | Titled Tue 29th Oct Late | chess.com INT | 2 | Vilmos Balint | Alexander Katz | 0-1 | 34 | Open |
| 161 | 2024-10-29 | Titled Tue 29th Oct Early | chess.com INT | 2 | Mukhiddin Madaminov | Alexander Katz | 0-1 | 69 | Open |
| 162 | 2024-10-29 | Titled Tue 29th Oct Early | chess.com INT | 1 | Petr Matyukov | Alexander Katz | 0-1 | 24 | Open |
| 163 | 2024-10-29 | Titled Tue 29th Oct Late | chess.com INT | 1 | Alexander Katz | Rushan Bogaudinov | 0-1 | 31 | Open |
| 164 | 2024-10-29 | Titled Tue 29th Oct Late | chess.com INT | 11 | Alexander Katz | Noah Thomforde-Toates | 1-0 | 42 | Open |
| 165 | 2024-10-29 | Titled Tue 29th Oct Early | chess.com INT | 11 | Nicolai Ianocichin | Alexander Katz | 0-1 | 34 | Open |
| 166 | 2024-10-29 | Titled Tue 29th Oct Late | chess.com INT | 10 | Sharath Radhakrishnan | Alexander Katz | 0-1 | 53 | Open |
| 167 | 2024-10-29 | Titled Tue 29th Oct Early | chess.com INT | 10 | Alexander Katz | Oleg Papayan | 0-1 | 74 | Open |
| 168 | 2024-06-08 | National Open 2024 | Las Vegas USA | 6.3 | Alexander Katz | Ruoyu Zhou | 1-0 | 48 | Open |
| 169 | 2024-06-07 | National Open 2024 | Las Vegas USA | 5.31 | Rose Atwell | Alexander Katz | 1/2-1/2 | 107 | Open |
| 170 | 2024-06-07 | National Open 2024 | Las Vegas USA | 4.4 | Alexander Katz | Vasif Durarbayli | 0-1 | 31 | Open |
| 171 | 2024-06-06 | National Open 2024 | Las Vegas USA | 3.1 | Illya Nyzhnyk | Alexander Katz | 1/2-1/2 | 15 | Open |
| 172 | 2024-06-06 | National Open 2024 | Las Vegas USA | 2.22 | Alexander Katz | Vaseegaran Nandhakumar | 1-0 | 43 | Open |
| 173 | 2024-06-05 | National Open 2024 | Las Vegas USA | 1.29 | Logan C Shafer | Alexander Katz | 0-1 | 39 | Open |
| 174 | 2024-03-21 | Reykjavik Open 2024 | Reykjavik ISL | 9.11 | Mert Yilmazyerli | Alexander Katz | 1/2-1/2 | 19 | Open |
| 175 | 2024-03-20 | Reykjavik Open 2024 | Reykjavik ISL | 8.25 | Alexander Katz | Harry Li | 1-0 | 24 | Open |
| 176 | 2024-03-19 | Reykjavik Open 2024 | Reykjavik ISL | 7.28 | Lenka Ptacnikova | Alexander Katz | 0-1 | 57 | Open |
| 177 | 2024-03-18 | Reykjavik Open 2024 | Reykjavik ISL | 6.4 | Alexander Katz | Paulius Pultinevicius | 0-1 | 37 | Open |
| 178 | 2024-03-18 | Reykjavik Open 2024 | Reykjavik ISL | 5.23 | Alexander Katz | Atousa Pourkashiyan | 1-0 | 26 | Open |
| 179 | 2024-03-17 | Reykjavik Open 2024 | Reykjavik ISL | 4.37 | Andreas Basilius Gikas | Alexander Katz | 0-1 | 30 | Open |
| 180 | 2024-03-16 | Reykjavik Open 2024 | Reykjavik ISL | 3.2 | Alexander Katz | Vahap Sanal | 0-1 | 32 | Open |
| 181 | 2024-03-16 | Reykjavik Open 2024 | Reykjavik ISL | 2.31 | Alexander Oliver Mai | Alexander Katz | 0-1 | 30 | Open |
| 182 | 2024-03-15 | Reykjavik Open 2024 | Reykjavik ISL | 1.41 | Alexander Katz | David Kolka | 1-0 | 32 | Open |
| 183 | 2023-12-30 | 33rd North American Open | Las Vegas USA | 9.7 | Jianchao Zhou | Alexander Katz | 1-0 | 55 | Open |
| 184 | 2023-12-29 | 33rd North American Open | Las Vegas USA | 8.16 | Alexander Katz | Matthew Zhu | 1-0 | 41 | Open |
| 185 | 2023-12-28 | 33rd North American Open | Las Vegas USA | 6.7 | Illya Nyzhnyk | Alexander Katz | 1/2-1/2 | 41 | Open |
| 186 | 2023-12-27 | 33rd North American Open | Las Vegas USA | 4.9 | Alexander Katz | Bilel Bellahcene | 1/2-1/2 | 29 | Open |
| 187 | 2023-12-26 | 33rd North American Open | Las Vegas USA | 2.17 | Alexander Katz | Dante M Beukes | 1-0 | 57 | Open |
| 188 | 2023-12-10 | 107th Edward Lasker Mem | New York USA | 5.4 | Eugene Choi Yoo | Alexander Katz | 1/2-1/2 | 24 | Open |
| 189 | 2023-12-09 | 107th Edward Lasker Mem | New York USA | 4.5 | Alexander Katz | Kiren Vivek Nasta | 1-0 | 31 | Open |
| 190 | 2023-12-09 | 107th Edward Lasker Mem | New York USA | 3.8 | Megan Althea Paragua | Alexander Katz | 0-1 | 67 | Open |
| 191 | 2023-12-08 | 107th Edward Lasker Mem | New York USA | 2.9 | Alexander Katz | Kyle Qiyu Dong | 1/2-1/2 | 40 | Open |
| 192 | 2023-11-12 | 1000GM NY Fall GMA | New York USA | 9.5 | Alexander Katz | Alexander Kaliksteyn | 1/2-1/2 | 9 | Open |
| 193 | 2023-11-12 | 1000GM NY Fall GMA | New York USA | 8.1 | Titas Stremavicius | Alexander Katz | 1-0 | 104 | Open |
| 194 | 2023-11-11 | 1000GM NY Fall GMA | New York USA | 7.2 | Alexander Katz | Luka Budisavljevic | 1/2-1/2 | 52 | Open |
| 195 | 2023-11-11 | 1000GM NY Fall GMA | New York USA | 6.4 | Sam Schmakel | Alexander Katz | 1/2-1/2 | 32 | Open |
| 196 | 2023-11-10 | 1000GM NY Fall GMA | New York USA | 5.4 | Josiah Stearman | Alexander Katz | 1-0 | 58 | Open |
| 197 | 2023-11-10 | 1000GM NY Fall GMA | New York USA | 4.5 | Alexander Katz | Brewington Hardaway | 1/2-1/2 | 170 | Open |
| 198 | 2023-11-09 | 1000GM NY Fall GMA | New York USA | 3.5 | Anthony Atanasov | Alexander Katz | 1/2-1/2 | 41 | Open |
| 199 | 2023-11-09 | 1000GM NY Fall GMA | New York USA | 2.2 | Alexander Katz | Djurabek Khamrakulov | 0-1 | 37 | Open |
| 200 | 2023-11-08 | 1000GM NY Fall GMA | New York USA | 1.5 | Alexander Katz | Nico Chasin | 1-0 | 54 | Open |
| 201 | 2023-10-24 | Titled Tue 24th Oct Late | chess.com INT | 9 | Alexander Katz | Jose Carlos Ibarra Jerez | 1-0 | 38 | Open |
| 202 | 2023-10-24 | Titled Tue 24th Oct Late | chess.com INT | 8 | Alexander Katz | Jonathan Dourerassou | 1-0 | 66 | Open |
| 203 | 2023-10-24 | Titled Tue 24th Oct Late | chess.com INT | 7 | Kamil Dragun | Alexander Katz | 0-1 | 27 | Open |
| 204 | 2023-10-24 | Titled Tue 24th Oct Late | chess.com INT | 6 | Tunahan Makaraci | Alexander Katz | 0-1 | 49 | Open |
| 205 | 2023-10-24 | Titled Tue 24th Oct Late | chess.com INT | 5 | Alexander Katz | Daniel Gutierrez Olivares | 1-0 | 23 | Open |
| 206 | 2023-10-24 | Titled Tue 24th Oct Late | chess.com INT | 4 | Casper Liu | Alexander Katz | 1/2-1/2 | 58 | Open |
| 207 | 2023-10-24 | Titled Tue 24th Oct Late | chess.com INT | 3 | Alexander Katz | Alberto Santos Flores | 1/2-1/2 | 59 | Open |
| 208 | 2023-10-24 | Titled Tue 24th Oct Late | chess.com INT | 2 | Alexander Grischuk | Alexander Katz | 1-0 | 58 | Open |
| 209 | 2023-10-24 | Titled Tue 24th Oct Late | chess.com INT | 1 | Nikita Klepikov | Alexander Katz | 0-1 | 42 | Open |
| 210 | 2023-10-24 | Titled Tue 24th Oct Late | chess.com INT | 11 | Alexander Katz | Sergei Zhigalko | 0-1 | 53 | Open |
| 211 | 2023-10-24 | Titled Tue 24th Oct Late | chess.com INT | 10 | Maksim Chigaev | Alexander Katz | 0-1 | 29 | Open |
| 212 | 2023-07-11 | Titled Tue 11th Jul Early | chess.com INT | 8 | Alexander Katz | Maksym Dubnevych | 0-1 | 58 | Open |
| 213 | 2023-07-11 | Titled Tue 11th Jul Early | chess.com INT | 7 | Alex Villa Tornero | Alexander Katz | 1-0 | 80 | Open |
| 214 | 2023-07-11 | Titled Tue 11th Jul Early | chess.com INT | 6 | Hayk Yeritsyan | Alexander Katz | 0-1 | 50 | Open |
| 215 | 2023-07-11 | Titled Tue 11th Jul Early | chess.com INT | 5 | Alexander Katz | Rudik Makarian | 0-1 | 39 | Open |
| 216 | 2023-07-11 | Titled Tue 11th Jul Early | chess.com INT | 4 | Alexander Katz | Dmitry Zacurdajev | 1-0 | 32 | Open |
| 217 | 2023-07-11 | Titled Tue 11th Jul Early | chess.com INT | 3 | Chithambaram VR. Aravindh | Alexander Katz | 1-0 | 41 | Open |
| 218 | 2023-07-11 | Titled Tue 11th Jul Early | chess.com INT | 2 | Hrvoje Fajdetic | Alexander Katz | 0-1 | 66 | Open |
| 219 | 2023-07-11 | Titled Tue 11th Jul Early | chess.com INT | 1 | Alexander Katz | Alfeu Junior Varela Bueno | 1-0 | 26 | Open |
| 220 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 9 | Mark Liubarov | Alexander Katz | 0-1 | 38 | Open |
| 221 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 8 | Arsal Gardezi | Alexander Katz | 0-1 | 39 | Open |
| 222 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 7 | Alexander Katz | Santiago Rodriguez | 0-1 | 31 | Open |
| 223 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 6 | Jeffery Xiong | Alexander Katz | 1-0 | 14 | Open |
| 224 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 5 | Alexander Katz | Pranav Prem | 1-0 | 54 | Open |
| 225 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 4 | Alexander Katz | Joseph Zeltsan | 1/2-1/2 | 52 | Open |
| 226 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 3 | Dmitrij Kollars | Alexander Katz | 1-0 | 82 | Open |
| 227 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 2 | Alexander Katz | Diego Garcia Alvarez | 1-0 | 24 | Open |
| 228 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 1 | Ruslan Gabdushev | Alexander Katz | 0-1 | 38 | Open |
| 229 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 11 | Raja Rithvik R | Alexander Katz | 1-0 | 79 | Open |
| 230 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 10 | Alexander Katz | Daniel Taboas Rodriguez | 1-0 | 41 | Open |
| 231 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 9 | Daniel Gutierrez Olivares | Alexander Katz | 1-0 | 56 | Open |
| 232 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 8 | Alexander Katz | David Haszon | 0-1 | 77 | Open |
| 233 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 7 | Jose Gabriel Cardoso Cardoso | Alexander Katz | 1-0 | 54 | Open |
| 234 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 6 | Alexander Katz | Sanan Sjugirov | 1-0 | 47 | Open |
| 235 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 5 | Isaac Wang | Alexander Katz | 0-1 | 34 | Open |
| 236 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 4 | Daniel Rangel | Alexander Katz | 1/2-1/2 | 58 | Open |
| 237 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 3 | Alexander Katz | Aryan Tari | 0-1 | 37 | Open |
| 238 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 2 | Evgueniy Taranenko | Alexander Katz | 0-1 | 42 | Open |
| 239 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 1 | Alexander Katz | Vladimir Mikhalsky | 1-0 | 31 | Open |
| 240 | 2023-06-17 | National Open 2023 | Las Vegas USA | 7.2 | Alexander Katz | Isaac Wang | 1-0 | 37 | Open |
| 241 | 2023-06-17 | National Open 2023 | Las Vegas USA | 6.12 | Ezra Paul Chambers | Alexander Katz | 1-0 | 31 | Open |
| 242 | 2023-06-16 | National Open 2023 | Las Vegas USA | 5.16 | Alexander Katz | Megan Lee | 1-0 | 35 | Open |
| 243 | 2023-06-16 | National Open 2023 | Las Vegas USA | 4.13 | Eric Liu | Alexander Katz | 1-0 | 38 | Open |
| 244 | 2023-06-15 | National Open 2023 | Las Vegas USA | 3.18 | Alexander Katz | Jayden Wu | 1-0 | 30 | Open |
| 245 | 2023-06-15 | National Open 2023 | Las Vegas USA | 2.14 | Patrick Liu | Alexander Katz | 1/2-1/2 | 24 | Open |
| 246 | 2023-06-14 | National Open 2023 | Las Vegas USA | 1.18 | Alexander Katz | Sreekar Gangavarapu | 1-0 | 37 | Open |
| 247 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 9 | Sergiy Zavgorodniy | Alexander Katz | 1-0 | 26 | Open |
| 248 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 8 | Alexander Katz | Krikor Sevag Mekhitarian | 0-1 | 28 | Open |
| 249 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 7 | David Haszon | Alexander Katz | 0-1 | 26 | Open |
| 250 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 6 | Alexander Katz | Eric Hansen | 0-1 | 25 | Open |
| 251 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 5 | Alexander Katz | Leon Livaic | 1-0 | 28 | Open |
| 252 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 4 | Pablo Lalanne | Alexander Katz | 0-1 | 31 | Open |
| 253 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 3 | Alexander Katz | Juan Rottenwohrer Suarez | 1-0 | 21 | Open |
| 254 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 2 | Jaime Vaglio Munoz | Alexander Katz | 1-0 | 37 | Open |
| 255 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 1 | Alexander Katz | Rushan Bogaudinov | 1-0 | 23 | Open |
| 256 | 2023-06-09 | 1000GM Vegas Super Swiss | Las Vegas USA | 3.26 | Alexander Katz | Anthony R Angeles Mercado | 0-1 | 43 | Open |
| 257 | 2023-06-09 | 1000GM Vegas Super Swiss | Las Vegas USA | 2.15 | Roman Gavrilin | Alexander Katz | 1-0 | 33 | Open |
| 258 | 2023-06-08 | 1000GM Vegas Super Swiss | Las Vegas USA | 1.11 | Alexander Katz | Henry Wang | 1/2-1/2 | 87 | Open |
| 259 | 2023-03-21 | 1000GM LA Spring Splash | Los Angeles USA | 9 | Alexander Katz | Cristhian Cruz | 1/2-1/2 | 42 | Open |
| 260 | 2023-03-21 | 1000GM LA Spring Splash | Los Angeles USA | 8 | Robert Akopian | Alexander Katz | 0-1 | 42 | Open |
| 261 | 2023-03-20 | 1000GM LA Spring Splash | Los Angeles USA | 7 | Alexander Katz | Luis Carlos Torres Rosas | 1-0 | 50 | Open |
| 262 | 2023-03-20 | 1000GM LA Spring Splash | Los Angeles USA | 6 | Jacob Chiang | Alexander Katz | 1/2-1/2 | 32 | Open |
| 263 | 2023-03-19 | 1000GM LA Spring Splash | Los Angeles USA | 5 | Alexander Katz | Gunnar Andersen | 0-1 | 39 | Open |
| 264 | 2023-03-19 | 1000GM LA Spring Splash | Los Angeles USA | 4 | Varun Krishnan | Alexander Katz | 1/2-1/2 | 21 | Open |
| 265 | 2023-03-18 | 1000GM LA Spring Splash | Los Angeles USA | 3 | Alexander Katz | Aaron Jacobson | 1-0 | 46 | Open |
| 266 | 2023-03-18 | 1000GM LA Spring Splash | Los Angeles USA | 2 | Semen Khanin | Alexander Katz | 1-0 | 39 | Open |
| 267 | 2023-03-17 | 1000GM LA Spring Splash | Los Angeles USA | 1 | Alexander Katz | Patrick Liu | 1-0 | 83 | Open |
| 268 | 2023-02-21 | Titled Tue 21st Feb Early | chess.com INT | 2 | Alex Antonio Delgado Rosas | Alexander Katz | 1-0 | 53 | Open |
| 269 | 2023-02-21 | Titled Tue 21st Feb Early | chess.com INT | 1 | Alexander Katz | Rafal Szyszylo | 0-1 | 17 | Open |
| 270 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 5 | Alexander Katz | Vugar Rasulov | 0-1 | 43 | Open |
| 271 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 4 | Emmanuel Jimenez Garcia | Alexander Katz | 1/2-1/2 | 66 | Open |
| 272 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 3 | Gumersindo Fernandez Garcia | Alexander Katz | 0-1 | 47 | Open |
| 273 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 3 | Sai Han Thiha | Alexander Katz | 1-0 | 51 | Open |
| 274 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 2 | Alexander Katz | A.R. Saleh Salem | 0-1 | 51 | Open |
| 275 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 2 | Alexander Katz | Narayanan S L | 0-1 | 33 | Open |
| 276 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 1 | Roshan Idnani | Alexander Katz | 0-1 | 13 | Open |
| 277 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 1 | Michael Kotyk | Alexander Katz | 0-1 | 32 | Open |
| 278 | 2022-12-11 | 1000GM Bay Area GM 2022 | San Jose CA USA | 9.5 | Harshid Kunka | Alexander Katz | 1/2-1/2 | 5 | Open |
| 279 | 2022-12-11 | 1000GM Bay Area GM 2022 | San Jose CA USA | 8.2 | Alexander Katz | Samrug Narayanan | 1-0 | 30 | Open |
| 280 | 2022-12-10 | 1000GM Bay Area GM 2022 | San Jose CA USA | 7.4 | Titas Stremavicius | Alexander Katz | 1/2-1/2 | 17 | Open |
| 281 | 2022-12-10 | 1000GM Bay Area GM 2022 | San Jose CA USA | 6.3 | Alexander Katz | Max Gedajlovic | 1/2-1/2 | 17 | Open |
| 282 | 2022-12-09 | 1000GM Bay Area GM 2022 | San Jose CA USA | 5.3 | Emilio Cordova | Alexander Katz | 1/2-1/2 | 15 | Open |
| 283 | 2022-12-09 | 1000GM Bay Area GM 2022 | San Jose CA USA | 4.4 | Alexander Katz | Mark Heimann | 1-0 | 40 | Open |
| 284 | 2022-12-08 | 1000GM Bay Area GM 2022 | San Jose CA USA | 3.2 | Aleksandr Ostrovskiy | Alexander Katz | 0-1 | 51 | Open |
| 285 | 2022-12-08 | 1000GM Bay Area GM 2022 | San Jose CA USA | 2.5 | Alexander Katz | Josiah Stearman | 1-0 | 58 | Open |
| 286 | 2022-12-07 | 1000GM Bay Area GM 2022 | San Jose CA USA | 1.1 | Alexander Katz | Vladimir Belous | 1/2-1/2 | 31 | Open |
| 287 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 5 | Leonardo Tristan | Alexander Katz | 1-0 | 68 | Open |
| 288 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 4 | Alexander Katz | Magnus Carlsen | 0-1 | 35 | Open |
| 289 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 3 | Sergei Azarov | Alexander Katz | 0-1 | 35 | Open |
| 290 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 2 | Jesper Morch Lauridsen | Alexander Katz | 0-1 | 33 | Open |
| 291 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 1 | Alexander Katz | Morgen Mills | 1/2-1/2 | 64 | Open |
| 292 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 3 | Alexander Katz | Roman Goldin | 0-1 | 0 | Open |
| 293 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 2 | Bojan Maksimovic | Alexander Katz | 1-0 | 70 | Open |
| 294 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 1 | Gerardo Fernandez Hernandez | Alexander Katz | 0-1 | 44 | Open |
| 295 | 2022-08-23 | 3rd Tras-os-Montes Open | Mirandela POR | 9.5 | Guy Levin | Alexander Katz | 1/2-1/2 | 11 | Open |
| 296 | 2022-08-22 | 3rd Tras-os-Montes Open | Mirandela POR | 8.4 | Alexander Katz | Michael Prusikin | 1/2-1/2 | 31 | Open |
| 297 | 2022-08-21 | 3rd Tras-os-Montes Open | Mirandela POR | 7.2 | Nicolas Checa | Alexander Katz | 1/2-1/2 | 54 | Open |
| 298 | 2022-08-20 | 3rd Tras-os-Montes Open | Mirandela POR | 6.6 | Alexander Katz | Daniel Pinto | 1-0 | 45 | Open |
| 299 | 2022-08-20 | 3rd Tras-os-Montes Open | Mirandela POR | 5.3 | Jung Min Seo | Alexander Katz | 1/2-1/2 | 36 | Open |
| 300 | 2022-08-19 | 3rd Tras-os-Montes Open | Mirandela POR | 4.2 | Alexander Katz | Yasser Quesada Perez | 1/2-1/2 | 33 | Open |
| 301 | 2022-08-18 | 3rd Tras-os-Montes Open | Mirandela POR | 3.9 | Miguel Antonio Neto Silva | Alexander Katz | 0-1 | 47 | Open |
| 302 | 2022-08-18 | 3rd Tras-os-Montes Open | Mirandela POR | 2.16 | Alexander Katz | Florian Grezels | 1-0 | 67 | Open |
| 303 | 2022-08-17 | 3rd Tras-os-Montes Open | Mirandela POR | 1.19 | Stefan Huber | Alexander Katz | 0-1 | 20 | Open |
| 304 | 2022-08-15 | 20th Spilimbergo Open | Spilimbergo ITA | 9.1 | Visakh N R | Alexander Katz | 1-0 | 25 | Open |
| 305 | 2022-08-14 | 20th Spilimbergo Open | Spilimbergo ITA | 8.2 | Alexander Katz | Diptayan Ghosh | 1-0 | 56 | Open |
| 306 | 2022-08-13 | 20th Spilimbergo Open | Spilimbergo ITA | 7.5 | Krishna C R G | Alexander Katz | 0-1 | 31 | Open |
| 307 | 2022-08-07 | 2nd Merida World Heritage | Merida (Badajoz) ESP | 9.2 | Kapil Chandran | Alexander Katz | 1/2-1/2 | 18 | Open |
| 308 | 2022-08-06 | 2nd Merida World Heritage | Merida (Badajoz) ESP | 8.2 | Alexander Katz | Alejandro Fernandez Camello | 1-0 | 39 | Open |
| 309 | 2022-08-06 | 2nd Merida World Heritage | Merida (Badajoz) ESP | 7.1 | Alexander Katz | Karen H. Grigoryan | 1/2-1/2 | 70 | Open |
| 310 | 2022-08-05 | 2nd Merida World Heritage | Merida (Badajoz) ESP | 6.2 | Platon Galperin | Alexander Katz | 0-1 | 28 | Open |
| 311 | 2022-08-04 | 2nd Merida World Heritage | Merida (Badajoz) ESP | 5.2 | Shyaam Nikhil P | Alexander Katz | 0-1 | 51 | Open |
| 312 | 2022-08-03 | 2nd Merida World Heritage | Merida (Badajoz) ESP | 3.8 | Alexander Katz | Abel Arjona Casado | 1-0 | 28 | Open |
| 313 | 2022-08-03 | 2nd Merida World Heritage | Merida (Badajoz) ESP | 2.9 | Jose Manuel Vela Ignacio | Alexander Katz | 0-1 | 28 | Open |
| 314 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 5 | Uku Valner | Alexander Katz | 1-0 | 68 | Open |
| 315 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 4 | Zviad Izoria | Alexander Katz | 1-0 | 43 | Open |
| 316 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 3 | Alexander Katz | Francesco De Gleria | 1-0 | 41 | Open |
| 317 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 2 | Alexey Sarana | Alexander Katz | 1-0 | 36 | Open |
| 318 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 1 | Alexander Katz | Daniel Shapiro | 1-0 | 37 | Open |
| 319 | 2022-08-02 | 2nd Merida World Heritage | Merida (Badajoz) ESP | 1.9 | Alexander Katz | Pedro Filipe Cristov Apolonia | 1-0 | 29 | Open |
| 320 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 8 | Alexander Katz | Aleksa Petrovic | 0-1 | 47 | Open |
| 321 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 7 | Peter Keller | Alexander Katz | 1/2-1/2 | 52 | Open |
| 322 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 6 | Alexander Katz | Ansh M Shah | 0-1 | 44 | Open |
| 323 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 5 | Alexander Katz | Gabor Nagy | 0-1 | 33 | Open |
| 324 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 4 | David W L Howell | Alexander Katz | 0-1 | 45 | Open |
| 325 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 3 | Alexander Katz | Denis Garrido | 1-0 | 31 | Open |
| 326 | 2022-07-26 | 38th Andorra Open 2022 | Escaldes AND | 3.2 | Alexander Katz | Martin Neugebauer | 0-1 | 40 | Open |
| 327 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 2 | Christopher Woojin Yoo | Alexander Katz | 1-0 | 58 | Open |
| 328 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 1 | Alexander Katz | Richard Stalmach | 1-0 | 52 | Open |
| 329 | 2022-07-22 | 55th Biel Master Open | Biel SUI | 9.16 | Bharath Subramaniyam H | Alexander Katz | 1-0 | 51 | Open |
| 330 | 2022-07-21 | 55th Biel Master Open | Biel SUI | 8.25 | Alexander Katz | Al Taher Abdulrahman Mohammad | 1-0 | 52 | Open |
| 331 | 2022-07-20 | 55th Biel Master Open | Biel SUI | 7.25 | Edgar Mamedov | Alexander Katz | 0-1 | 47 | Open |
| 332 | 2022-07-19 | Titled Tue 19th Jul Late | chess.com INT | 9 | Varvara Poliakova | Alexander Katz | 1-0 | 64 | Open |
| 333 | 2022-07-19 | Titled Tue 19th Jul Late | chess.com INT | 8 | Alexander Katz | Fidel Corrales Jimenez | 0-1 | 19 | Open |
| 334 | 2022-07-19 | Titled Tue 19th Jul Late | chess.com INT | 7 | Rodrigo Roman | Alexander Katz | 0-1 | 42 | Open |
| 335 | 2022-07-19 | Titled Tue 19th Jul Early | chess.com INT | 7 | Wagner Peixoto Guimaraes | Alexander Katz | 1-0 | 61 | Open |
| 336 | 2022-07-19 | Titled Tue 19th Jul Late | chess.com INT | 6 | Alexander Katz | Marcelo Jorquera | 1/2-1/2 | 62 | Open |
| 337 | 2022-07-19 | Titled Tue 19th Jul Early | chess.com INT | 6 | Alexander Katz | Anatoly Moskvin | 1-0 | 19 | Open |
| 338 | 2022-07-19 | 55th Biel Master Open | Biel SUI | 6.14 | Alexander Katz | Haik M. Martirosyan | 0-1 | 33 | Open |
| 339 | 2022-07-19 | Titled Tue 19th Jul Late | chess.com INT | 5 | Alexander Katz | Bryan Xie | 1/2-1/2 | 79 | Open |
| 340 | 2022-07-19 | Titled Tue 19th Jul Early | chess.com INT | 5 | Alexander Katz | Adrian Musat | 1-0 | 32 | Open |
| 341 | 2022-07-19 | Titled Tue 19th Jul Late | chess.com INT | 4 | Armin Musovic | Alexander Katz | 0-1 | 40 | Open |
| 342 | 2022-07-19 | Titled Tue 19th Jul Late | chess.com INT | 3 | Alexander Katz | Carles Martin Barcelo | 0-1 | 59 | Open |
| 343 | 2022-07-19 | Titled Tue 19th Jul Late | chess.com INT | 2 | Grigoriy Oparin | Alexander Katz | 1-0 | 59 | Open |
| 344 | 2022-07-19 | Titled Tue 19th Jul Late | chess.com INT | 1 | Alexander Katz | Alfie Onslow | 1-0 | 51 | Open |
| 345 | 2022-07-18 | 55th Biel Master Open | Biel SUI | 5.12 | Kirill Shevchenko | Alexander Katz | 1/2-1/2 | 17 | Open |
| 346 | 2022-07-16 | 55th Biel Master Open | Biel SUI | 4.29 | Alexander Katz | Cristian Vasquez Toledo | 1-0 | 45 | Open |
| 347 | 2022-07-15 | 55th Biel Master Open | Biel SUI | 3.13 | Viktor Erdos | Alexander Katz | 1-0 | 31 | Open |
| 348 | 2022-07-14 | 55th Biel Master Open | Biel SUI | 2.12 | Alexander Katz | Tamas Banusz | 1/2-1/2 | 43 | Open |
| 349 | 2022-07-12 | Titled Tue 12th Jul Late | chess.com INT | 7 | Rohun Trakru | Alexander Katz | 0-1 | 34 | Open |
| 350 | 2022-07-12 | Titled Tue 12th Jul Late | chess.com INT | 6 | Alexander Katz | Avital Boruchovsky | 0-1 | 33 | Open |
| 351 | 2022-07-12 | Titled Tue 12th Jul Late | chess.com INT | 5 | Oleg Terletsky | Alexander Katz | 0-1 | 38 | Open |
| 352 | 2022-07-12 | Titled Tue 12th Jul Late | chess.com INT | 4 | Alexander Katz | Aleksandras Jegorovas | 1-0 | 23 | Open |
| 353 | 2022-07-12 | Titled Tue 12th Jul Late | chess.com INT | 3 | Alexander Katz | Jose Eduardo Martinez Alcantara | 0-1 | 26 | Open |
| 354 | 2022-07-12 | Titled Tue 12th Jul Late | chess.com INT | 2 | Isaac Wang | Alexander Katz | 0-1 | 39 | Open |
| 355 | 2022-07-12 | Titled Tue 12th Jul Late | chess.com INT | 1 | Alexander Katz | Samuel Fieberg | 1/2-1/2 | 68 | Open |
| 356 | 2022-07-04 | 50th Annual World Open | Philadelphia USA | 9 | Alexander Katz | Danila Poliannikov | 1-0 | 32 | Open |
| 357 | 2022-07-04 | 50th Annual World Open | Philadelphia USA | 8 | Jason Wang | Alexander Katz | 1/2-1/2 | 22 | Open |
| 358 | 2022-07-03 | 50th Annual World Open | Philadelphia USA | 7 | Alexander Katz | J Sai Agni Jeevitesh | 1-0 | 50 | Open |
| 359 | 2022-07-03 | 50th Annual World Open | Philadelphia USA | 6 | Justin Chen | Alexander Katz | 1/2-1/2 | 20 | Open |
| 360 | 2022-07-02 | 50th Annual World Open | Philadelphia USA | 5 | Alexander Katz | Deniel Causo | 1-0 | 23 | Open |
| 361 | 2022-07-02 | 50th Annual World Open | Philadelphia USA | 4 | Erick Zhao | Alexander Katz | 1-0 | 36 | Open |
| 362 | 2022-07-01 | 50th Annual World Open | Philadelphia USA | 3.2 | Alexander Katz | Mikhail Al. Antipov | 1/2-1/2 | 14 | Open |
| 363 | 2022-07-01 | 50th Annual World Open | Philadelphia USA | 2 | Terry Luo | Alexander Katz | 0-1 | 40 | Open |
| 364 | 2022-06-30 | 50th Annual World Open | Philadelphia USA | 1 | Alexander Katz | Eric Liu | 1-0 | 55 | Open |
| 365 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 9 | Tomas Laurusas | Alexander Katz | 1-0 | 40 | Open |
| 366 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 8 | Denis Khismatullin | Alexander Katz | 0-1 | 37 | Open |
| 367 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 7 | Alexander Katz | Georgios Souleidis | 1-0 | 25 | Open |
| 368 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 6 | Jose Eduardo Martinez Alcantara | Alexander Katz | 1-0 | 41 | Open |
| 369 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 5 | Piotr Mickiewicz | Alexander Katz | 0-1 | 44 | Open |
| 370 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 4 | Alexander Katz | Alexandr Kostiukov | 1/2-1/2 | 26 | Open |
| 371 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 3 | Arben Dardha | Alexander Katz | 0-1 | 60 | Open |
| 372 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 2 | Alexander Katz | Rasmus Svane | 0-1 | 36 | Open |
| 373 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 1 | Alexander Katz | Oliver Wartiovaara | 1-0 | 27 | Open |
| 374 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 11 | Zbigniew Pakleza | Alexander Katz | 1-0 | 24 | Open |
| 375 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 10 | Alexander Katz | Julian Estrada Nieto | 1-0 | 57 | Open |
| 376 | 2022-06-12 | National Open 2022 | Las Vegas USA | 9.5 | Alexander Katz | Teddie Wen | 1/2-1/2 | 21 | Open |
| 377 | 2022-06-12 | National Open 2022 | Las Vegas USA | 8.9 | Alexander Katz | Bryan Xie | 1-0 | 72 | Open |
| 378 | 2022-06-11 | National Open 2022 | Las Vegas USA | 7.7 | Mark Heimann | Alexander Katz | 1-0 | 94 | Open |
| 379 | 2022-06-11 | National Open 2022 | Las Vegas USA | 6.1 | Alexander Katz | Joshua Adrian Avila Rodriguez | 1-0 | 56 | Open |
| 380 | 2022-06-10 | National Open 2022 | Las Vegas USA | 5.8 | Christopher Shen | Alexander Katz | 1/2-1/2 | 41 | Open |
| 381 | 2022-06-10 | National Open 2022 | Las Vegas USA | 4.8 | Alexander Katz | Nico Chasin | 1/2-1/2 | 33 | Open |
| 382 | 2022-06-09 | National Open 2022 | Las Vegas USA | 3.8 | Joseph Levine | Alexander Katz | 1/2-1/2 | 38 | Open |
| 383 | 2022-06-09 | National Open 2022 | Las Vegas USA | 2.6 | Alexander Katz | Qiyu Zhou | 1-0 | 28 | Open |
| 384 | 2022-06-08 | National Open 2022 | Las Vegas USA | 1.13 | Paul Y Iinuma | Alexander Katz | 0-1 | 40 | Open |
| 385 | 2022-04-16 | 14th Foxwoods Open | Ledyard USA | 6 | Alexander Fishbein | Alexander Katz | 0-1 | 29 | Open |
| 386 | 2022-04-15 | 14th Foxwoods Open | Ledyard USA | 5 | Alexander Shabalov | Alexander Katz | 1/2-1/2 | 27 | Open |
| 387 | 2022-04-14 | 14th Foxwoods Open | Ledyard USA | 3 | Alexander Katz | Naveen Prabhu | 1-0 | 53 | Open |
| 388 | 2022-04-13 | 14th Foxwoods Open | Ledyard USA | 1 | Alexander Katz | Anthony Levin | 1-0 | 37 | Open |
| 389 | 2021-12-29 | 31st North American Open | Las Vegas USA | 8.4 | Alexander Katz | Jianchao Zhou | 0-1 | 38 | Open |
| 390 | 2021-12-29 | 31st North American Open | Las Vegas USA | 7.4 | Ameet K Ghasi | Alexander Katz | 1/2-1/2 | 32 | Open |
| 391 | 2021-12-28 | 31st North American Open | Las Vegas USA | 6 | Alexander Katz | Alice Lee | 1-0 | 66 | Open |
| 392 | 2021-12-28 | 31st North American Open | Las Vegas USA | 5 | Alex Kolay | Alexander Katz | 1/2-1/2 | 16 | Open |
| 393 | 2021-12-27 | 31st North American Open | Las Vegas USA | 4 | Alexander Katz | Derek Wu | 1-0 | 29 | Open |
| 394 | 2021-12-27 | 31st North American Open | Las Vegas USA | 3.1 | Vladimir Akopian | Alexander Katz | 1-0 | 31 | Open |
| 395 | 2021-12-26 | 31st North American Open | Las Vegas USA | 2 | Alexander Katz | Slava Rek | 1-0 | 35 | Open |
| 396 | 2021-12-26 | 31st North American Open | Las Vegas USA | 1 | Natalia Patricia Castro | Alexander Katz | 0-1 | 44 | Open |
| 397 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 7 | Alexander Zubov | Alexander Katz | 1-0 | 36 | Open |
| 398 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 6 | Alexander Katz | Mikhail Bryakin | 1-0 | 40 | Open |
| 399 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 5 | Alexander Katz | Tim Kett | 1-0 | 1 | Open |
| 400 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 4 | Vugar Rasulov | Alexander Katz | 1-0 | 41 | Open |
| 401 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 3 | Klementy Sychev | Alexander Katz | 0-1 | 29 | Open |
| 402 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 2 | Alexander Katz | Zviad Izoria | 1-0 | 36 | Open |
| 403 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 1 | Alexander Katz | Oleg Bykovskiy | 1-0 | 35 | Open |
| 404 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 6 | Alexander Katz | Rasmus Svane | 0-1 | 37 | Open |
| 405 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 5 | Alexander Katz | Codrut-Constantin Florescu | 1-0 | 57 | Open |
| 406 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 4 | Siva Mahadevan | Alexander Katz | 1-0 | 21 | Open |
| 407 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 3 | Arturo A. Fernandez Hernandez | Alexander Katz | 0-1 | 41 | Open |
| 408 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 2 | Alexander Katz | Christian Silvestre | 1-0 | 38 | Open |
| 409 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 1 | Vinod Kumar Sharma | Alexander Katz | 0-1 | 49 | Open |
| 410 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 4 | Murad Ibrahimli | Alexander Katz | 1-0 | 38 | Open |
| 411 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 3 | Alexander Katz | Vincent Keymer | 1-0 | 36 | Open |
| 412 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 2 | Alexander Katz | Jose Renato Ruiz Maranhao | 1-0 | 26 | Open |
| 413 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 1 | Tong Hai Anh | Alexander Katz | 0-1 | 25 | Open |
| 414 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 9 | Gata Kamsky | Alexander Katz | 1-0 | 30 | Open |
| 415 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 8 | Alexander Zubov | Alexander Katz | 1/2-1/2 | 56 | Open |
| 416 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 7 | Alexander Katz | Vladimir Mikhailovsky | 1-0 | 32 | Open |
| 417 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 6 | Alexander Katz | Ruben Akhayan | 1-0 | 22 | Open |
| 418 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 5 | Anna Zhurova | Alexander Katz | 0-1 | 35 | Open |
| 419 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 4 | Alexandre Qashashvili | Alexander Katz | 1/2-1/2 | 33 | Open |
| 420 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 3 | Alexander Katz | Eric Hansen | 0-1 | 26 | Open |
| 421 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 2 | Alexander Katz | Zachary Calderon | 1-0 | 19 | Open |
| 422 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 1 | Ilimbek Esenbek Uulu | Alexander Katz | 0-1 | 23 | Open |
| 423 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 11 | Garg Aradhya | Alexander Katz | 1-0 | 29 | Open |
| 424 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 10 | Alexander Katz | Igor L. Vakhlamov | 1-0 | 43 | Open |
| 425 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 8 | Alexander Katz | Aref Vasli | 0-1 | 35 | Open |
| 426 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 7 | Alexander Katz | Tomas Laurusas | 0-1 | 32 | Open |
| 427 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 6 | Andrew D Green | Alexander Katz | 0-1 | 24 | Open |
| 428 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 5 | Alexander Katz | Damir Majer | 1-0 | 86 | Open |
| 429 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 4 | Mustafa Yilmaz | Alexander Katz | 1-0 | 34 | Open |
| 430 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 3 | Alexander Katz | Arthur Muromtsev | 1-0 | 37 | Open |
| 431 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 2 | Volodymyr Onyshchuk | Alexander Katz | 1-0 | 50 | Open |
| 432 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 1 | Alexander Katz | Tong Hai Anh | 1-0 | 40 | Open |
| 433 | 2021-08-16 | 51st Continental Open | Sturbridge USA | 9 | Samuel Sevian | Alexander Katz | 1-0 | 26 | Open |
| 434 | 2021-08-15 | 51st Continental Open | Sturbridge USA | 8 | Alexander Katz | Mark Paragua | 1-0 | 79 | Open |
| 435 | 2021-08-15 | 51st Continental Open | Sturbridge USA | 7 | Victor Mikhalevski | Alexander Katz | 1-0 | 32 | Open |
| 436 | 2021-08-14 | 51st Continental Open | Sturbridge USA | 6.4 | Alexander Katz | Rahul Srivatshav P | 1-0 | 36 | Open |
| 437 | 2021-08-14 | 51st Continental Open | Sturbridge USA | 5 | Sudarshan Sriniaiyer | Alexander Katz | 0-1 | 36 | Open |
| 438 | 2021-08-13 | 51st Continental Open | Sturbridge USA | 4 | Alexander Katz | Joseph Zeltsan | 0-1 | 40 | Open |
| 439 | 2021-08-13 | 51st Continental Open | Sturbridge USA | 3 | Alexander Katz | Kirk Ghazarian | 1-0 | 42 | Open |
| 440 | 2021-08-12 | 51st Continental Open | Sturbridge USA | 2 | Justin Lee | Alexander Katz | 0-1 | 56 | Open |
| 441 | 2021-08-12 | 51st Continental Open | Sturbridge USA | 1 | Eugene Yanayt | Alexander Katz | 1-0 | 52 | Open |
| 442 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 9 | Aziz Degenbaev | Alexander Katz | 0-1 | 76 | Open |
| 443 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 8 | Singh Amitpal | Alexander Katz | 1/2-1/2 | 62 | Open |
| 444 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 7 | Alexander Katz | Svetlana Vifleemskaia | 1-0 | 49 | Open |
| 445 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 6 | Alexander Katz | Mikhail Chernov | 0-1 | 49 | Open |
| 446 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 5 | Konstantin Loy | Alexander Katz | 1-0 | 24 | Open |
| 447 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 4 | Alexander Katz | Evan S Rosenberg | 1-0 | 49 | Open |
| 448 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 3 | Levente Miszler | Alexander Katz | 1-0 | 65 | Open |
| 449 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 2 | Alexander Katz | Jegor Lashkin | 0-1 | 49 | Open |
| 450 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 1 | Alexander Katz | Ilimbek Esenbek Uulu | 1-0 | 15 | Open |
| 451 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 11 | Jakob Leon Pajeken | Alexander Katz | 0-1 | 36 | Open |
| 452 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 10 | Alexander Katz | Todd Andrews | 1-0 | 83 | Open |
| 453 | 2021-08-08 | 121st US Open 2021 | Cherry Hill USA | 9.12 | Alexander Katz | Nicholas Rosenthal | 1-0 | 29 | Open |
| 454 | 2021-08-04 | 121st US Open 2021 | Cherry Hill USA | 5.6 | Alexander Katz | Jeremiah Williams | 1-0 | 24 | Open |
| 455 | 2021-08-03 | 121st US Open 2021 | Cherry Hill USA | 4.8 | Benjamin Gledura | Alexander Katz | 1-0 | 28 | Open |
| 456 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 7 | Kazybek Nogerbek | Alexander Katz | 1-0 | 47 | Open |
| 457 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 6 | Ahmad Ahmadzada | Alexander Katz | 1-0 | 54 | Open |
| 458 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 5 | Alexander Katz | Dang Hoang Son | 1-0 | 52 | Open |
| 459 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 4 | Alexander Katz | Alexander Rustemov | 1-0 | 46 | Open |
| 460 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 3 | Vugar Asadli | Alexander Katz | 1-0 | 40 | Open |
| 461 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 2 | Murad Ibrahimli | Alexander Katz | 0-1 | 47 | Open |
| 462 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 1 | Alexander Katz | Lewis Martin | 1-0 | 31 | Open |
| 463 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 7 | Jan Kokoszczynski | Alexander Katz | 1-0 | 58 | Open |
| 464 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 6 | Alexander Katz | Michael Fernandez | 1-0 | 25 | Open |
| 465 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 5 | Mikhail Pesotskiy | Alexander Katz | 1/2-1/2 | 47 | Open |
| 466 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 4 | Alexander Katz | Baadur Jobava | 0-1 | 28 | Open |
| 467 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 3 | Alexander Katz | Jakub Chyzy | 1-0 | 37 | Open |
| 468 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 2 | Nikita Afanasiev | Alexander Katz | 1-0 | 21 | Open |
| 469 | 2021-07-05 | 49th Annual World Open | Philadelphia USA | 9 | Alexander Katz | Danila Poliannikov | 1-0 | 19 | Open |
| 470 | 2021-07-05 | 49th Annual World Open | Philadelphia USA | 8 | Zaven Andriasian | Alexander Katz | 1-0 | 24 | Open |
| 471 | 2021-07-04 | 49th Annual World Open | Philadelphia USA | 6 | John Ahlborg | Alexander Katz | 0-1 | 33 | Open |
| 472 | 2021-07-03 | 49th Annual World Open | Philadelphia USA | 5 | Alexander Katz | Isaac Chiu | 1/2-1/2 | 41 | Open |
| 473 | 2021-07-02 | 49th Annual World Open | Philadelphia USA | 3.1 | Alexander Katz | Jeffery Xiong | 1/2-1/2 | 39 | Open |
| 474 | 2021-06-30 | 14th Philadelphia Int | Philadelphia USA | 9 | Alexander Katz | Evan Park | 1/2-1/2 | 43 | Open |
| 475 | 2021-06-29 | 14th Philadelphia Int | Philadelphia USA | 8 | Deepak Aaron | Alexander Katz | 1-0 | 33 | Open |
| 476 | 2021-06-29 | 14th Philadelphia Int | Philadelphia USA | 7 | Alexander Katz | Andy Woodward | 1-0 | 33 | Open |
| 477 | 2021-06-28 | 14th Philadelphia Int | Philadelphia USA | 6 | Nico Chasin | Alexander Katz | 1-0 | 33 | Open |
| 478 | 2021-06-28 | 14th Philadelphia Int | Philadelphia USA | 5 | Alexander Katz | Ryo Chen | 1-0 | 37 | Open |
| 479 | 2021-06-27 | 14th Philadelphia Int | Philadelphia USA | 4 | Lev Paciorkowski | Alexander Katz | 1/2-1/2 | 55 | Open |
| 480 | 2021-06-27 | 14th Philadelphia Int | Philadelphia USA | 3 | Alexander Katz | Vladimir Belous | 0-1 | 37 | Open |
| 481 | 2021-06-26 | 14th Philadelphia Int | Philadelphia USA | 2 | Eric Li | Alexander Katz | 0-1 | 38 | Open |
| 482 | 2021-06-26 | 14th Philadelphia Int | Philadelphia USA | 1 | Alexander Katz | Milind Maiti | 1/2-1/2 | 59 | Open |
| 483 | 2021-06-20 | National Open 2021 | Las Vegas USA | 8.8 | Alexander Katz | Hans Moke Niemann | 0-1 | 34 | Open |
| 484 | 2021-06-19 | National Open 2021 | Las Vegas USA | 7.11 | Timur Gareyev | Alexander Katz | 0-1 | 32 | Open |
| 485 | 2021-06-18 | National Open 2021 | Las Vegas USA | 5.5 | Illya Nyzhnyk | Alexander Katz | 1-0 | 33 | Open |
| 486 | 2021-06-17 | National Open 2021 | Las Vegas USA | 3.8 | Akshat Chandra | Alexander Katz | 1/2-1/2 | 38 | Open |
| 487 | 2021-05-23 | 1st Silicon Valley Open | Milpitas USA | 5.2 | Alexander Katz | Yu-Cheng Liang | 1-0 | 38 | Open |
| 488 | 2021-05-23 | 1st Silicon Valley Open | Milpitas USA | 4.3 | Tuvshintugs Batchimeg | Alexander Katz | 0-1 | 67 | Open |
| 489 | 2021-05-22 | 1st Silicon Valley Open | Milpitas USA | 3.1 | Alexander Katz | Vyom Vidyarthi | 0-1 | 72 | Open |
| 490 | 2021-05-22 | 1st Silicon Valley Open | Milpitas USA | 2.1 | Derek Jia | Alexander Katz | 0-1 | 50 | Open |
| 491 | 2021-05-22 | 1st Silicon Valley Open | Milpitas USA | 1.1 | Alexander Katz | Benjamin P Stern | 1-0 | 36 | Open |
| 492 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 8 | Alexander Katz | Kacper Polok | 0-1 | 28 | Open |
| 493 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 7 | Umid Aslanov | Alexander Katz | 1/2-1/2 | 26 | Open |
| 494 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 6 | Alexander Katz | Artyom Timofeev | 0-1 | 37 | Open |
| 495 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 5 | Alexander Katz | Tobias Lang Nilsen | 1-0 | 29 | Open |
| 496 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 4 | Tymon Ochedzan | Alexander Katz | 0-1 | 20 | Open |
| 497 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 2 | Alexander Katz | Aleksandar Indjic | 0-1 | 60 | Open |
| 498 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 1 | Ellen Fredericia Nilssen | Alexander Katz | 0-1 | 37 | Open |
| 499 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 8 | Alexander Katz | Iulian-Ioan Taras | 1-0 | 35 | Open |
| 500 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 7 | Nino Batsiashvili | Alexander Katz | 1-0 | 36 | Open |
| 501 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 6 | Alexander Katz | Jan Marn | 1-0 | 40 | Open |
| 502 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 5 | Maciej Czopor | Alexander Katz | 1-0 | 29 | Open |
| 503 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 11 | Valentina Gunina | Alexander Katz | 1-0 | 36 | Open |
| 504 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 10 | Alexander Katz | Dawid Janaszak | 1-0 | 31 | Open |
| 505 | 2019-12-30 | 29th North American Open | Las Vegas USA | 9 | Pavel Blatny | Alexander Katz | 0-1 | 47 | Open |
| 506 | 2019-12-29 | 29th North American Open | Las Vegas USA | 8 | Alexander Katz | Richard Wang | 1/2-1/2 | 30 | Open |
| 507 | 2019-12-29 | 29th North American Open | Las Vegas USA | 7 | Spencer Lehmann | Alexander Katz | 0-1 | 30 | Open |
| 508 | 2019-12-28 | 29th North American Open | Las Vegas USA | 6 | Alexander Katz | Shunkai Peng | 1/2-1/2 | 31 | Open |
| 509 | 2019-12-28 | 29th North American Open | Las Vegas USA | 5 | Davaaochir Nyamdorj | Alexander Katz | 1/2-1/2 | 40 | Open |
| 510 | 2019-12-27 | 29th North American Open | Las Vegas USA | 4 | Alexander Katz | Logan Wu | 1-0 | 23 | Open |
| 511 | 2019-12-27 | 29th North American Open | Las Vegas USA | 3 | Tirso Alvarez | Alexander Katz | 0-1 | 40 | Open |
| 512 | 2019-12-26 | 29th North American Open | Las Vegas USA | 2 | Alexander Katz | Alexandra Botez | 1/2-1/2 | 14 | Open |
| 513 | 2019-12-26 | 29th North American Open | Las Vegas USA | 1 | Kevin Pan | Alexander Katz | 1/2-1/2 | 24 | Open |
| 514 | 2019-07-06 | 47th Annual World Open | Philadelphia USA | 7 | Abhimanyu Mishra | Alexander Katz | 1-0 | 39 | Open |
| 515 | 2019-07-06 | 47th Annual World Open | Philadelphia USA | 6 | Alexander Katz | Eigen Wang | 1/2-1/2 | 34 | Open |
| 516 | 2019-07-05 | 47th Annual World Open | Philadelphia USA | 5 | Tansel Turgut | Alexander Katz | 1/2-1/2 | 28 | Open |
| 517 | 2019-07-05 | 47th Annual World Open | Philadelphia USA | 4 | Alexander Katz | William Graif | 1/2-1/2 | 22 | Open |
| 518 | 2019-07-04 | 47th Annual World Open | Philadelphia USA | 3 | Megan Lee | Alexander Katz | 0-1 | 45 | Open |
| 519 | 2019-07-04 | 47th Annual World Open | Philadelphia USA | 2 | Alexander Katz | Rushaan Mahajan | 1/2-1/2 | 42 | Open |
| 520 | 2019-06-30 | 13th Philadelphia Int | Philadelphia USA | 6 | Alexander Katz | Aravind Kumar | 1/2-1/2 | 41 | Open |
| 521 | 2019-06-29 | 13th Philadelphia Int | Philadelphia USA | 5 | Andrew Peredun | Alexander Katz | 1/2-1/2 | 29 | Open |
| 522 | 2019-06-29 | 13th Philadelphia Int | Philadelphia USA | 4.4 | Alexander Katz | Zaven Andriasian | 0-1 | 41 | Open |
| 523 | 2019-06-28 | 13th Philadelphia Int | Philadelphia USA | 3 | Marcus Miyasaka | Alexander Katz | 0-1 | 32 | Open |
| 524 | 2019-06-28 | 13th Philadelphia Int | Philadelphia USA | 2 | Alexander Katz | Max J Li | 1/2-1/2 | 41 | Open |
| 525 | 2019-06-27 | 13th Philadelphia Int | Philadelphia USA | 1 | Alan Zhang | Alexander Katz | 0-1 | 38 | Open |
| 526 | 2019-06-16 | National Open 2019 | Las Vegas USA | 9 | Alexander Katz | Aleksey Sorokin | 0-1 | 35 | Open |
| 527 | 2019-06-16 | National Open 2019 | Las Vegas USA | 8 | Pablo Della Morte | Alexander Katz | 0-1 | 34 | Open |
| 528 | 2019-06-15 | National Open 2019 | Las Vegas USA | 7 | Alexander Katz | Helgi Ass Gretarsson | 1/2-1/2 | 16 | Open |
| 529 | 2019-06-15 | National Open 2019 | Las Vegas USA | 6 | Pavlo Vorontsov | Alexander Katz | 1-0 | 48 | Open |
| 530 | 2019-06-14 | National Open 2019 | Las Vegas USA | 5 | Alexander Katz | Yasser Quesada Perez | 1/2-1/2 | 27 | Open |
| 531 | 2019-06-14 | National Open 2019 | Las Vegas USA | 4 | Danial Asaria | Alexander Katz | 0-1 | 24 | Open |
| 532 | 2019-06-13 | National Open 2019 | Las Vegas USA | 3 | Michael Feinstein | Alexander Katz | 0-1 | 32 | Open |
| 533 | 2019-06-13 | National Open 2019 | Las Vegas USA | 2 | Alexander Katz | Illya Nyzhnyk | 0-1 | 24 | Open |
| 534 | 2019-06-12 | National Open 2019 | Las Vegas USA | 1 | Alexander Katz | Jeffrey Serna | 1-0 | 20 | Open |
| 535 | 2019-05-27 | Cherry Blossom Classic | Dulles USA | 9.6 | Alexander Katz | Alonso Zapata | 1-0 | 57 | Open |
| 536 | 2019-05-26 | Cherry Blossom Classic | Dulles USA | 7.8 | Alexandre Kretchetov | Alexander Katz | 0-1 | 53 | Open |
| 537 | 2019-05-24 | Cherry Blossom Classic | Dulles USA | 3.1 | Sabina-Francesca Foisor | Alexander Katz | 1/2-1/2 | 35 | Open |
| 538 | 2019-04-20 | 13th Foxwoods Open | Ledyard USA | 6 | Alexander Katz | Zachary Tanenbaum | 0-1 | 42 | Open |
| 539 | 2019-04-19 | 13th Foxwoods Open | Ledyard USA | 5 | C.J. Arvind | Alexander Katz | 1/2-1/2 | 57 | Open |
| 540 | 2019-04-19 | 13th Foxwoods Open | Ledyard USA | 4 | Alexander Katz | Abhimanyu Mishra | 1/2-1/2 | 39 | Open |
| 541 | 2019-04-18 | 13th Foxwoods Open | Ledyard USA | 3.3 | Guillermo Vazquez | Alexander Katz | 1-0 | 41 | Open |
| 542 | 2019-04-18 | 13th Foxwoods Open | Ledyard USA | 2 | Alexander Katz | Nico Chasin | 1-0 | 40 | Open |
| 543 | 2019-04-17 | 13th Foxwoods Open | Ledyard USA | 1 | Josue Natanael Castillo Garcia | Alexander Katz | 0-1 | 25 | Open |
| 544 | 2019-02-07 | PRO League Group Stage | chess.com INT | 5 | Aleksandr Lenderman | Alexander Katz | 1-0 | 57 | Open |
| 545 | 2019-01-23 | PRO League Group Stage | chess.com INT | 3 | Alexander Katz | Anatoly Bykhovsky | 1-0 | 37 | Open |
| 546 | 2019-01-22 | PRO League Group Stage | chess.com INT | 3 | Aaron Jacobson | Alexander Katz | 0-1 | 34 | Open |
| 547 | 2019-01-22 | PRO League Group Stage | chess.com INT | 3 | Alexander Katz | Sergei Azarov | 0-1 | 50 | Open |
| 548 | 2019-01-22 | PRO League Group Stage | chess.com INT | 3 | Wojciech Moranda | Alexander Katz | 1-0 | 46 | Open |
| 549 | 2019-01-16 | PRO League Group Stage | chess.com INT | 2 | Eric Hansen | Alexander Katz | 1-0 | 47 | Open |
| 550 | 2019-01-16 | PRO League Group Stage | chess.com INT | 2 | Alexander Katz | Eric M Kurtz | 1-0 | 29 | Open |
| 551 | 2019-01-15 | PRO League Group Stage | chess.com INT | 2 | Alexander Katz | Robin Van Kampen | 0-1 | 73 | Open |
| 552 | 2019-01-15 | PRO League Group Stage | chess.com INT | 2 | Ivan Saric | Alexander Katz | 1-0 | 46 | Open |
| 553 | 2019-01-08 | PRO League Group Stage | chess.com INT | 1 | Joshua Grabinsky | Alexander Katz | 0-1 | 60 | Open |
| 554 | 2019-01-08 | PRO League Group Stage | chess.com INT | 1 | Alexander Katz | Aleksandr Shimanov | 1/2-1/2 | 51 | Open |
| 555 | 2019-01-08 | PRO League Group Stage | chess.com INT | 1 | Alexander Katz | Illya Nyzhnyk | 0-1 | 45 | Open |
| 556 | 2019-01-08 | PRO League Group Stage | chess.com INT | 1 | Quang Liem Le | Alexander Katz | 1-0 | 45 | Open |
| 557 | 2019-01-07 | Bay Area Int Open 2019 | Burlingame USA | 9.2 | Alexander Katz | Christopher Woojin Yoo | 1/2-1/2 | 21 | Open |
| 558 | 2019-01-06 | Bay Area Int Open 2019 | Burlingame USA | 8.9 | Parimarjan Negi | Alexander Katz | 1-0 | 54 | Open |
| 559 | 2019-01-05 | Bay Area Int Open 2019 | Burlingame USA | 7.2 | Alexander Katz | Justus Williams | 1-0 | 25 | Open |
| 560 | 2019-01-05 | Bay Area Int Open 2019 | Burlingame USA | 6.21 | Aaron Jacobson | Alexander Katz | 1/2-1/2 | 54 | Open |
| 561 | 2019-01-04 | Bay Area Int Open 2019 | Burlingame USA | 5.12 | Alexander Katz | Quang Liem Le | 1/2-1/2 | 61 | Open |
| 562 | 2019-01-03 | Bay Area Int Open 2019 | Burlingame USA | 4.23 | Alexander Katz | Siddharth Banik | 1-0 | 52 | Open |
| 563 | 2019-01-03 | Bay Area Int Open 2019 | Burlingame USA | 3.24 | Shunkai Peng | Alexander Katz | 1/2-1/2 | 43 | Open |
| 564 | 2019-01-02 | Bay Area Int Open 2019 | Burlingame USA | 2.2 | Alexander Katz | Jeffery Xiong | 0-1 | 37 | Open |
| 565 | 2019-01-01 | Bay Area Int Open 2019 | Burlingame USA | 1.31 | John Watson | Alexander Katz | 0-1 | 49 | Open |
| 566 | 2018-11-25 | CCCSA Fall GM 2018 | Charlotte USA | 9.5 | Alexander Katz | Brandon Jacobson | 1/2-1/2 | 13 | Open |
| 567 | 2018-11-25 | CCCSA Fall GM 2018 | Charlotte USA | 8.1 | Joel Banawa | Alexander Katz | 1/2-1/2 | 38 | Open |
| 568 | 2018-11-24 | CCCSA Fall GM 2018 | Charlotte USA | 7.5 | Tanguy Ringoir | Alexander Katz | 1/2-1/2 | 52 | Open |
| 569 | 2018-11-24 | CCCSA Fall GM 2018 | Charlotte USA | 6.2 | Alexander Katz | Tianqi Wang | 1/2-1/2 | 39 | Open |
| 570 | 2018-11-23 | CCCSA Fall GM 2018 | Charlotte USA | 5.4 | Angel Arribas Lopez | Alexander Katz | 1/2-1/2 | 21 | Open |
| 571 | 2018-11-23 | CCCSA Fall GM 2018 | Charlotte USA | 4.3 | Alexander Katz | David Berczes | 1-0 | 45 | Open |
| 572 | 2018-11-22 | CCCSA Fall GM 2018 | Charlotte USA | 3.3 | Nicolas Checa | Alexander Katz | 1/2-1/2 | 36 | Open |
| 573 | 2018-11-22 | CCCSA Fall GM 2018 | Charlotte USA | 2.4 | Alexander Katz | Kevin Wang | 1-0 | 41 | Open |
| 574 | 2018-11-21 | CCCSA Fall GM 2018 | Charlotte USA | 1.2 | Kassa Korley | Alexander Katz | 1/2-1/2 | 62 | Open |
| 575 | 2018-09-03 | CCCSA Labor Day GM 2018 | Charlotte USA | 9.5 | Joel Banawa | Alexander Katz | 1/2-1/2 | 3 | Open |
| 576 | 2018-09-03 | CCCSA Labor Day GM 2018 | Charlotte USA | 8.2 | Alexander Katz | Jayaram Ashwin | 1-0 | 32 | Open |
| 577 | 2018-09-02 | CCCSA Labor Day GM 2018 | Charlotte USA | 7.4 | Kevin Wang | Alexander Katz | 1/2-1/2 | 40 | Open |
| 578 | 2018-09-02 | CCCSA Labor Day GM 2018 | Charlotte USA | 6.3 | Alexander Katz | Tianqi Wang | 0-1 | 40 | Open |
| 579 | 2018-09-01 | CCCSA Labor Day GM 2018 | Charlotte USA | 5.3 | Andrey Gorovets | Alexander Katz | 1/2-1/2 | 8 | Open |
| 580 | 2018-09-01 | CCCSA Labor Day GM 2018 | Charlotte USA | 4.4 | Alexander Katz | Brandon Jacobson | 1-0 | 45 | Open |
| 581 | 2018-08-31 | CCCSA Labor Day GM 2018 | Charlotte USA | 3.2 | Farai Mandizha | Alexander Katz | 1/2-1/2 | 67 | Open |
| 582 | 2018-08-31 | CCCSA Labor Day GM 2018 | Charlotte USA | 2.5 | Alexander Katz | Kassa Korley | 0-1 | 64 | Open |
| 583 | 2018-08-30 | CCCSA Labor Day GM 2018 | Charlotte USA | 1.1 | Alexander Katz | Vladimir Belous | 1-0 | 48 | Open |
| 584 | 2018-05-28 | 27th Chicago Open 2018 | Chicago USA | 9 | Alexander Katz | Gabriel Petesch | 1-0 | 46 | Open |
| 585 | 2018-05-28 | 27th Chicago Open 2018 | Chicago USA | 8 | Illya Nyzhnyk | Alexander Katz | 1-0 | 32 | Open |
| 586 | 2018-05-27 | 27th Chicago Open 2018 | Chicago USA | 7 | Alexander Katz | Vladimir Georgiev | 1/2-1/2 | 50 | Open |
| 587 | 2018-05-27 | 27th Chicago Open 2018 | Chicago USA | 6 | Bartlomiej Macieja | Alexander Katz | 1-0 | 51 | Open |
| 588 | 2018-05-26 | 27th Chicago Open 2018 | Chicago USA | 5 | Alexander Katz | Daniel Gurevich | 1-0 | 45 | Open |
| 589 | 2018-05-26 | 27th Chicago Open 2018 | Chicago USA | 4 | Julian Proleiko | Alexander Katz | 0-1 | 21 | Open |
| 590 | 2018-05-25 | 27th Chicago Open 2018 | Chicago USA | 3 | Alexander Katz | William Graif | 1/2-1/2 | 33 | Open |
| 591 | 2018-05-25 | 27th Chicago Open 2018 | Chicago USA | 2 | Cemil Can Ali Marandi | Alexander Katz | 1-0 | 36 | Open |
| 592 | 2018-04-01 | 12th Philadelphia Open | Philadelphia USA | 9 | Samuel Sevian | Alexander Katz | 1-0 | 32 | Open |
| 593 | 2018-04-01 | 12th Philadelphia Open | Philadelphia USA | 8 | Alexander Katz | Arthur Guo | 1-0 | 87 | Open |
| 594 | 2018-03-31 | 12th Philadelphia Open | Philadelphia USA | 7 | John M Burke | Alexander Katz | 1-0 | 45 | Open |
| 595 | 2018-03-31 | 12th Philadelphia Open | Philadelphia USA | 6 | Alexander Katz | Eugene Yanayt | 1-0 | 29 | Open |
| 596 | 2018-03-30 | 12th Philadelphia Open | Philadelphia USA | 5 | Christian Kyndel Pedersen | Alexander Katz | 1-0 | 50 | Open |
| 597 | 2018-03-30 | 12th Philadelphia Open | Philadelphia USA | 4 | Alexander Katz | Maggie Feng | 1-0 | 83 | Open |
| 598 | 2018-03-29 | 12th Philadelphia Open | Philadelphia USA | 3 | Carissa Yip | Alexander Katz | 1/2-1/2 | 73 | Open |
| 599 | 2018-03-29 | 12th Philadelphia Open | Philadelphia USA | 2.3 | Alexander Katz | Ruifeng Li | 1/2-1/2 | 33 | Open |
| 600 | 2017-02-22 | PRO League Group Stage | chess.com INT | 7 | Steven Abrahams | Alexander Katz | 0-1 | 53 | Open |
| 601 | 2017-02-22 | PRO League Group Stage | chess.com INT | 7 | Alexander Katz | Leinier Dominguez Perez | 0-1 | 35 | Open |
| 602 | 2017-02-22 | PRO League Group Stage | chess.com INT | 7 | Alexander Katz | Renier Gonzalez | 1-0 | 73 | Open |
| 603 | 2017-02-22 | PRO League Group Stage | chess.com INT | 7 | Bassem Amin | Alexander Katz | 1-0 | 40 | Open |
| 604 | 2017-02-11 | PRO League Group Stage | chess.com INT | 5 | Alexander Katz | Thomas Beerdsen | 1-0 | 31 | Open |
| 605 | 2017-02-11 | PRO League Group Stage | chess.com INT | 5 | Alexander Katz | Roeland Pruijssers | 1/2-1/2 | 33 | Open |
| 606 | 2017-02-11 | PRO League Group Stage | chess.com INT | 5 | Stefan Kuipers | Alexander Katz | 0-1 | 28 | Open |
| 607 | 2017-02-11 | PRO League Group Stage | chess.com INT | 5 | Merijn Van Delft | Alexander Katz | 0-1 | 69 | Open |
| 608 | 2017-02-01 | PRO League Atlantic 2017 | chess.com INT | 4 | Bator Sambuev | Alexander Katz | 1-0 | 34 | Open |
| 609 | 2017-02-01 | PRO League Atlantic 2017 | chess.com INT | 4 | Nikolay Noritsyn | Alexander Katz | 1-0 | 37 | Open |
| 610 | 2017-02-01 | PRO League Atlantic 2017 | chess.com INT | 4 | Alexander Katz | Gergely-Andras-Gyula Szabo | 1/2-1/2 | 53 | Open |
| 611 | 2017-01-25 | PRO League Atlantic 2017 | chess.com INT | 3 | Emmanuel Carter | Alexander Katz | 1-0 | 41 | Open |
| 612 | 2017-01-25 | PRO League Atlantic 2017 | chess.com INT | 3 | Alexander Katz | Tianqi Wang | 0-1 | 86 | Open |
| 613 | 2017-01-25 | PRO League Atlantic 2017 | chess.com INT | 3 | Alexander Katz | Peter Giannatos | 1/2-1/2 | 118 | Open |
| 614 | 2017-01-25 | PRO League Atlantic 2017 | chess.com INT | 3 | Joshua Mu | Alexander Katz | 1-0 | 38 | Open |
| 615 | 2017-01-11 | PRO League Atlantic 2017 | chess.com INT | 1 | Alexander Katz | Mario Villanueva | 0-1 | 65 | Open |
| 616 | 2017-01-11 | PRO League Atlantic 2017 | chess.com INT | 1 | Alexander Katz | Sandro Mareco | 1/2-1/2 | 93 | Open |
| 617 | 2017-01-11 | PRO League Atlantic 2017 | chess.com INT | 1 | Sebastian Dario Iermito | Alexander Katz | 1-0 | 32 | Open |
| 618 | 2017-01-11 | PRO League Atlantic 2017 | chess.com INT | 1 | Ernesto Real De Azua | Alexander Katz | 1/2-1/2 | 88 | Open |
| 619 | 2016-10-08 | Millionaire Chess Op 2016 | Atlantic City USA | 6.17 | Eugene Perelshteyn | Alexander Katz | 1-0 | 61 | Open |
| 620 | 2016-10-06 | Millionaire Chess Op 2016 | Atlantic City USA | 2.12 | Alexander Katz | Lazaro Bruzon Batista | 0-1 | 60 | Open |
| 621 | 2016-08-28 | 48th Atlantic Open 2016 | Arlington USA | 5 | Sergey Kudrin | Alexander Katz | 1/2-1/2 | 26 | Open |
| 622 | 2015-11-10 | US Chess League KO 2015 | ICC INT | 1 | Giorgi Kacheishvili | Alexander Katz | 1-0 | 64 | Open |
| 623 | 2015-10-27 | US Chess League 2015 | ICC INT | 10 | Alexander Katz | Denis Shmeliov | 1-0 | 41 | Open |
| 624 | 2015-10-20 | US Chess League 2015 | ICC INT | 9 | Alexander Katz | Giorgi Kacheishvili | 1-0 | 42 | Open |
| 625 | 2015-10-13 | US Chess League 2015 | ICC INT | 8 | Alexander Katz | Jeffrey Haskel | 1-0 | 29 | Open |
| 626 | 2015-09-30 | US Chess League 2015 | ICC INT | 6 | Daniel Gurevich | Alexander Katz | 1-0 | 75 | Open |
| 627 | 2015-09-22 | US Chess League 2015 | ICC INT | 5 | Alexander Katz | Ian Harris | 1-0 | 62 | Open |
| 628 | 2015-09-15 | US Chess League 2015 | ICC INT | 4 | Pascal Charbonneau | Alexander Katz | 1-0 | 57 | Open |
| 629 | 2015-09-08 | US Chess League 2015 | ICC INT | 3 | Alexander Katz | Denis Shmeliov | 1/2-1/2 | 23 | Open |
| 630 | 2015-09-01 | US Chess League 2015 | ICC INT | 2 | Praveen Balakrishnan | Alexander Katz | 0-1 | 33 | Open |
| 631 | 2015-07-05 | 43rd Annual World Open | Arlington USA | 9 | Michael Lee | Alexander Katz | 1/2-1/2 | 43 | Open |
| 632 | 2015-07-05 | 43rd Annual World Open | Arlington USA | 8 | Alexander Katz | Luke Harmon-Vellotti | 1/2-1/2 | 26 | Open |
| 633 | 2015-07-04 | 43rd Annual World Open | Arlington USA | 7 | Praveen Balakrishnan | Alexander Katz | 0-1 | 47 | Open |
| 634 | 2015-07-03 | 43rd Annual World Open | Arlington USA | 4 | Alexander Katz | Ehsan Ghaem Maghami | 0-1 | 47 | Open |
| 635 | 2015-07-02 | 43rd Annual World Open | Arlington USA | 3 | Magesh Chandran Panchanathan | Alexander Katz | 1/2-1/2 | 49 | Open |
| 636 | 2015-07-02 | 43rd Annual World Open | Arlington USA | 2 | Alexander Katz | Boris Avrukh | 1/2-1/2 | 94 | Open |
| 637 | 2015-06-30 | 3rd DC International 2015 | Arlington USA | 9 | John M Burke | Alexander Katz | 1/2-1/2 | 27 | Open |
| 638 | 2015-06-29 | 3rd DC International 2015 | Arlington USA | 8 | Alexander Katz | Ahuja Rohan | 1/2-1/2 | 21 | Open |
| 639 | 2015-06-28 | 3rd DC International 2015 | Arlington USA | 7 | Matthew Larson | Alexander Katz | 0-1 | 70 | Open |
| 640 | 2015-06-28 | 3rd DC International 2015 | Arlington USA | 6 | Alexander Katz | Hans Moke Niemann | 1/2-1/2 | 24 | Open |
| 641 | 2015-06-27 | 3rd DC International 2015 | Arlington USA | 5 | Andrew Zheng | Alexander Katz | 1/2-1/2 | 40 | Open |
| 642 | 2015-06-27 | 3rd DC International 2015 | Arlington USA | 4 | Alexander Katz | Praveen Balakrishnan | 0-1 | 44 | Open |
| 643 | 2015-06-26 | 3rd DC International 2015 | Arlington USA | 2 | Alexander Katz | Magesh Chandran Panchanathan | 0-1 | 33 | Open |
| 644 | 2015-04-05 | 9th Philadelphia Open | Philadelphia USA | 9.13 | Farai Mandizha | Alexander Katz | 0-1 | 61 | Open |
| 645 | 2015-04-05 | 9th Philadelphia Open | Philadelphia USA | 8.12 | Alexander Katz | Atousa Pourkashiyan | 1/2-1/2 | 46 | Open |
| 646 | 2015-04-04 | 9th Philadelphia Open | Philadelphia USA | 7.6 | Alexander Katz | Ioan-Cristian Chirila | 0-1 | 35 | Open |
| 647 | 2015-04-04 | 9th Philadelphia Open | Philadelphia USA | 6.7 | Bryan Smith | Alexander Katz | 0-1 | 20 | Open |
| 648 | 2015-04-03 | 9th Philadelphia Open | Philadelphia USA | 5.9 | Daniel Gurevich | Alexander Katz | 1/2-1/2 | 43 | Open |
| 649 | 2015-04-03 | 9th Philadelphia Open | Philadelphia USA | 4.15 | Alexander Katz | Dean Ippolito | 1-0 | 31 | Open |
| 650 | 2015-04-02 | 9th Philadelphia Open | Philadelphia USA | 3.6 | Alexander Katz | Ehsan Ghaem Maghami | 0-1 | 62 | Open |
| 651 | 2015-04-02 | 9th Philadelphia Open | Philadelphia USA | 2.14 | Justin Sarkar | Alexander Katz | 0-1 | 72 | Open |
| 652 | 2014-11-12 | US Chess League KO 2014 | ICC INT | 1 | Matthew Larson | Alexander Katz | 1-0 | 60 | Open |
| 653 | 2014-11-05 | US Chess League Wildcard 2014 | ICC INT | 1 | Nat Koons | Alexander Katz | 0-1 | 26 | Open |
| 654 | 2014-10-21 | US Chess League 2014 | ICC INT | 9 | Alexander Katz | Nat Koons | 0-1 | 46 | Open |
| 655 | 2014-09-23 | US Chess League 2014 | ICC INT | 5 | Jonathan Schroer | Alexander Katz | 1/2-1/2 | 36 | Open |
| 656 | 2014-09-10 | US Chess League 2014 | ICC INT | 3 | Alexander Katz | Richard Francisco | 1/2-1/2 | 32 | Open |
| 657 | 2014-08-26 | US Chess League 2014 | ICC INT | 1 | Farai Mandizha | Alexander Katz | 1-0 | 35 | Open |
| 658 | 2014-01-26 | 12th Foxwoods Open 2014 | Ledyard USA | 9.1 | Alexander Katz | Andrew Tang | 0-1 | 42 | Open |
| 659 | 2014-01-26 | 12th Foxwoods Open 2014 | Ledyard USA | 8.13 | Zachary Tanenbaum | Alexander Katz | 0-1 | 46 | Open |
| 660 | 2014-01-25 | 12th Foxwoods Open 2014 | Ledyard USA | 7.13 | Eugene Yanayt | Alexander Katz | 1-0 | 71 | Open |
| 661 | 2014-01-25 | 12th Foxwoods Open 2014 | Ledyard USA | 6.13 | Alexander Katz | Denis Shmeliov | 1/2-1/2 | 47 | Open |
| 662 | 2014-01-24 | 12th Foxwoods Open 2014 | Ledyard USA | 5.15 | Bora Yagiz | Alexander Katz | 0-1 | 39 | Open |
| 663 | 2014-01-24 | 12th Foxwoods Open 2014 | Ledyard USA | 4.16 | Alexander Katz | Majur Juac | 1-0 | 34 | Open |
| 664 | 2014-01-23 | 12th Foxwoods Open 2014 | Ledyard USA | 3.17 | Raja Panjwani | Alexander Katz | 1-0 | 86 | Open |
| 665 | 2014-01-23 | 12th Foxwoods Open 2014 | Ledyard USA | 2.14 | Yaacov Norowitz | Alexander Katz | 1-0 | 43 | Open |
| 666 | 2014-01-22 | 12th Foxwoods Open 2014 | Ledyard USA | 1.9 | Alexander Katz | Robert Hungaski | 0-1 | 47 | Open |
| 667 | 2013-10-29 | US Chess League 2013 | chess.com INT | 10 | Rico Salimbagat | Alexander Katz | 0-1 | 20 | Open |
| 668 | 2013-10-23 | US Chess League 2013 | chess.com INT | 9 | Michael Bodek | Alexander Katz | 1/2-1/2 | 40 | Open |
| 669 | 2013-10-15 | US Chess League 2013 | chess.com INT | 8 | Dov Gorman | Alexander Katz | 0-1 | 49 | Open |
| 670 | 2013-09-25 | US Chess League 2013 | chess.com INT | 5 | Alexander Katz | Ryan Goldenberg | 0-1 | 63 | Open |
| 671 | 2013-09-18 | US Chess League 2013 | chess.com INT | 4 | Alexander Katz | Larry Remlinger | 1-0 | 91 | Open |
| 672 | 2013-09-11 | US Chess League 2013 | chess.com INT | 3 | Alexander Katz | Denis Shmeliov | 1/2-1/2 | 75 | Open |
| 673 | 2013-09-03 | US Chess League 2013 | chess.com INT | 2 | Richard Costigan | Alexander Katz | 1/2-1/2 | 81 | Open |
| 674 | 2013-08-28 | US Chess League 2013 | chess.com INT | 1 | Alexander Katz | Alexander King | 1/2-1/2 | 32 | Open |
| 675 | 2012-11-12 | US Chess League KO Final 2012 | ICC INT | 1 | Alexander Katz | Alexander King | 0-1 | 74 | Open |
| 676 | 2012-11-07 | US Chess League 2012 | ICC INT | 10 | Alexander Katz | John M Burke | 1/2-1/2 | 33 | Open |
| 677 | 2012-10-18 | US Chess League 2012 | ICC INT | 7 | Alexander Katz | 2001217 | 1-0 | 29 | Open |
| 678 | 2012-10-09 | US Chess League 2012 | ICC INT | 6 | Alexander Katz | Alec Getz | 1/2-1/2 | 62 | Open |
| 679 | 2012-09-24 | US Chess League 2012 | ICC INT | 4 | Alexander Katz | Kesav Viswanadha | 1-0 | 72 | Open |
| 680 | 2012-09-19 | US Chess League 2012 | ICC INT | 3 | Ilya Krasik | Alexander Katz | 0-1 | 50 | Open |
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