Koustav Chatterjee
Country
IND
Birth Year
2003
Gender
M
Title
Grandmaster
FIDE ID
25073060
FIDE Rating
2488
FIDE Rating Graph
Games
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2026-01-19 | NY Marshall Winter GM B | New York USA | 9.4 | Ivan Schitco | Koustav Chatterjee | 1/2-1/2 | 29 | Open |
| 2 | 2026-01-19 | NY Marshall Winter GM B | New York USA | 8.3 | Koustav Chatterjee | John Ludwig | 1/2-1/2 | 32 | Open |
| 3 | 2026-01-18 | NY Marshall Winter GM B | New York USA | 7.3 | Jakub Fus | Koustav Chatterjee | 1/2-1/2 | 24 | Open |
| 4 | 2026-01-18 | NY Marshall Winter GM B | New York USA | 6.4 | Koustav Chatterjee | Eshaan Hebbar | 1/2-1/2 | 53 | Open |
| 5 | 2026-01-17 | NY Marshall Winter GM B | New York USA | 5.2 | Avi Harrison Kaplan | Koustav Chatterjee | 1/2-1/2 | 15 | Open |
| 6 | 2026-01-17 | NY Marshall Winter GM B | New York USA | 4.5 | Koustav Chatterjee | Bryan Enming Lin | 1-0 | 38 | Open |
| 7 | 2026-01-16 | NY Marshall Winter GM B | New York USA | 3.1 | Koustav Chatterjee | Aleksandr Lenderman | 1/2-1/2 | 23 | Open |
| 8 | 2026-01-15 | NY Marshall Winter GM B | New York USA | 2.5 | Rose Atwell | Koustav Chatterjee | 1/2-1/2 | 49 | Open |
| 9 | 2026-01-14 | NY Marshall Winter GM B | New York USA | 1.2 | Koustav Chatterjee | L M S T De Silva | 1/2-1/2 | 35 | Open |
| 10 | 2026-01-05 | Pan-Am Intercollegiate | Oak Brook, IL USA | 6.16 | Koustav Chatterjee | Samuel Zhang | 1/2-1/2 | 44 | Open |
| 11 | 2026-01-04 | Pan-Am Intercollegiate | Oak Brook, IL USA | 5.12 | Koustav Chatterjee | Christopher Shen | 1/2-1/2 | 37 | Open |
| 12 | 2026-01-04 | Pan-Am Intercollegiate | Oak Brook, IL USA | 4.16 | Rohit Guha | Koustav Chatterjee | 0-1 | 33 | Open |
| 13 | 2026-01-03 | Pan-Am Intercollegiate | Oak Brook, IL USA | 3.4 | Koustav Chatterjee | Francesco Sonis | 1/2-1/2 | 31 | Open |
| 14 | 2026-01-03 | Pan-Am Intercollegiate | Oak Brook, IL USA | 2.16 | Ryan M Beh | Koustav Chatterjee | 0-1 | 27 | Open |
| 15 | 2026-01-02 | Pan-Am Intercollegiate | Oak Brook, IL USA | 1.16 | Koustav Chatterjee | Jungmin Shinn | 1-0 | 37 | Open |
| 16 | 2025-12-30 | 35th North American Open | Las Vegas USA | 9.4 | Koustav Chatterjee | Alexander Katz | 1/2-1/2 | 45 | Open |
| 17 | 2025-12-29 | 35th North American Open | Las Vegas USA | 8.2 | Mukhammadali Abdurakhmonov | Koustav Chatterjee | 1/2-1/2 | 8 | Open |
| 18 | 2025-12-29 | 35th North American Open | Las Vegas USA | 7.1 | Koustav Chatterjee | Abdimalik Abdisalimov | 1/2-1/2 | 31 | Open |
| 19 | 2025-12-28 | 35th North American Open | Las Vegas USA | 6.1 | Ehsan Ghaem Maghami | Koustav Chatterjee | 1/2-1/2 | 13 | Open |
| 20 | 2025-12-28 | 35th North American Open | Las Vegas USA | 5.3 | Koustav Chatterjee | Simon Lamaze | 1-0 | 40 | Open |
| 21 | 2025-12-27 | 35th North American Open | Las Vegas USA | 4.8 | Isaac Wang | Koustav Chatterjee | 0-1 | 58 | Open |
| 22 | 2025-12-27 | 35th North American Open | Las Vegas USA | 3.12 | Koustav Chatterjee | Sila Caglar | 1-0 | 33 | Open |
| 23 | 2025-12-26 | 35th North American Open | Las Vegas USA | 2.8 | Jingyun (ryan) Yang | Koustav Chatterjee | 1/2-1/2 | 18 | Open |
| 24 | 2025-11-30 | US Chess Masters 2025 | Charlotte USA | 9.17 | Koustav Chatterjee | Sergey Erenburg | 1/2-1/2 | 52 | Open |
| 25 | 2025-11-30 | US Chess Masters 2025 | Charlotte USA | 8.8 | Jianchao Zhou | Koustav Chatterjee | 1/2-1/2 | 28 | Open |
| 26 | 2025-11-29 | US Chess Masters 2025 | Charlotte USA | 7.3 | Shawn Rodrigue-Lemieux | Koustav Chatterjee | 1-0 | 51 | Open |
| 27 | 2025-11-29 | US Chess Masters 2025 | Charlotte USA | 6.1 | Koustav Chatterjee | Andrew Hong | 1/2-1/2 | 23 | Open |
| 28 | 2025-11-28 | US Chess Masters 2025 | Charlotte USA | 5.1 | Koustav Chatterjee | Jeffery Xiong | 1/2-1/2 | 32 | Open |
| 29 | 2025-11-28 | US Chess Masters 2025 | Charlotte USA | 4.4 | David Brodsky | Koustav Chatterjee | 0-1 | 52 | Open |
| 30 | 2025-11-27 | US Chess Masters 2025 | Charlotte USA | 2.24 | Sullivan Mcconnell | Koustav Chatterjee | 0-1 | 55 | Open |
| 31 | 2025-11-26 | US Chess Masters 2025 | Charlotte USA | 1.3 | Koustav Chatterjee | Alexander J Crump | 1-0 | 31 | Open |
| 32 | 2025-10-26 | Texas Collegiate Finals | Richardson USA | 4.7 | Koustav Chatterjee | Oleksii Bilych | 1-0 | 69 | Open |
| 33 | 2025-10-25 | Texas Collegiate Finals | Richardson USA | 2.3 | Koustav Chatterjee | Shawn Rodrigue-Lemieux | 0-1 | 35 | Open |
| 34 | 2025-10-25 | Texas Collegiate Finals | Richardson USA | 1.7 | Ekin Baris Ozenir | Koustav Chatterjee | 1-0 | 39 | Open |
| 35 | 2025-10-13 | Texas Norm Super Swiss | Houston, TX USA | 9.2 | Koustav Chatterjee | Zachary Tanenbaum | 1/2-1/2 | 43 | Open |
| 36 | 2025-10-12 | Texas Norm Super Swiss | Houston, TX USA | 8.3 | Luka Budisavljevic | Koustav Chatterjee | 1-0 | 116 | Open |
| 37 | 2025-10-12 | Texas Norm Super Swiss | Houston, TX USA | 7.5 | Koustav Chatterjee | Ryan Amburgy | 1-0 | 43 | Open |
| 38 | 2025-10-11 | Texas Norm Super Swiss | Houston, TX USA | 6.5 | Andrew Jiang | Koustav Chatterjee | 0-1 | 31 | Open |
| 39 | 2025-10-11 | Texas Norm Super Swiss | Houston, TX USA | 5.5 | Koustav Chatterjee | Liam Putnam | 1/2-1/2 | 42 | Open |
| 40 | 2025-10-10 | Texas Norm Super Swiss | Houston, TX USA | 4.4 | Julian Colville | Koustav Chatterjee | 1/2-1/2 | 43 | Open |
| 41 | 2025-10-10 | Texas Norm Super Swiss | Houston, TX USA | 3.1 | Koustav Chatterjee | Santiago Avila Pavas | 0-1 | 58 | Open |
| 42 | 2025-10-09 | Texas Norm Super Swiss | Houston, TX USA | 2.4 | Anthony Atanasov | Koustav Chatterjee | 0-1 | 52 | Open |
| 43 | 2025-10-08 | Texas Norm Super Swiss | Houston, TX USA | 1.5 | Koustav Chatterjee | Megan Lee | 1-0 | 31 | Open |
| 44 | 2025-04-06 | College Final Four 2025 | Richardson USA | 3.3 | Jose Gabriel Cardoso Cardoso | Koustav Chatterjee | 1-0 | 30 | Open |
| 45 | 2025-01-05 | Pan-Am Intercollegiate | Charlotte USA | 6.6 | Bryce Tiglon | Koustav Chatterjee | 1/2-1/2 | 34 | Open |
| 46 | 2025-01-04 | Pan-Am Intercollegiate | Charlotte USA | 4.17 | Akira Nakada | Koustav Chatterjee | 1/2-1/2 | 60 | Open |
| 47 | 2025-01-03 | Pan-Am Intercollegiate | Charlotte USA | 3.1 | Gleb Dudin | Koustav Chatterjee | 1-0 | 58 | Open |
| 48 | 2024-12-01 | US Chess Masters 2024 | Charlotte USA | 8.19 | Koustav Chatterjee | Juraj Druska | 0-1 | 41 | Open |
| 49 | 2024-11-30 | US Chess Masters 2024 | Charlotte USA | 7.17 | Tianqi Wang | Koustav Chatterjee | 1/2-1/2 | 76 | Open |
| 50 | 2024-11-29 | US Chess Masters 2024 | Charlotte USA | 5.5 | Alexander Donchenko | Koustav Chatterjee | 1-0 | 46 | Open |
| 51 | 2024-11-29 | US Chess Masters 2024 | Charlotte USA | 4.18 | Koustav Chatterjee | Gulrukhbegim Tokhirjonova | 1-0 | 36 | Open |
| 52 | 2024-11-28 | US Chess Masters 2024 | Charlotte USA | 2.22 | Koustav Chatterjee | Tamas Petenyi | 1/2-1/2 | 64 | Open |
| 53 | 2024-09-03 | 1000GM Labor Super Swiss | San Jose CA USA | 9.7 | Koustav Chatterjee | Miguel Angel Montes Orozco | 1-0 | 28 | Open |
| 54 | 2024-09-03 | 1000GM Labor Super Swiss | San Jose CA USA | 8.8 | Benjamin Gongora Montes | Koustav Chatterjee | 1/2-1/2 | 69 | Open |
| 55 | 2024-09-02 | 1000GM Labor Super Swiss | San Jose CA USA | 7.2 | Koustav Chatterjee | Yasser Quesada Perez | 0-1 | 48 | Open |
| 56 | 2024-09-02 | 1000GM Labor Super Swiss | San Jose CA USA | 6.5 | Neuris Delgado Ramirez | Koustav Chatterjee | 1/2-1/2 | 27 | Open |
| 57 | 2024-09-01 | 1000GM Labor Super Swiss | San Jose CA USA | 5.4 | Koustav Chatterjee | Andrei Macovei | 1/2-1/2 | 18 | Open |
| 58 | 2024-09-01 | 1000GM Labor Super Swiss | San Jose CA USA | 4.7 | Andrew Guo | Koustav Chatterjee | 0-1 | 29 | Open |
| 59 | 2024-08-31 | 1000GM Labor Super Swiss | San Jose CA USA | 3.6 | Koustav Chatterjee | Isaac Antonio Garcia Guerrero | 1/2-1/2 | 28 | Open |
| 60 | 2024-08-31 | 1000GM Labor Super Swiss | San Jose CA USA | 2.5 | Shaaketh Sivakumar | Koustav Chatterjee | 1/2-1/2 | 22 | Open |
| 61 | 2024-08-30 | 1000GM Labor Super Swiss | San Jose CA USA | 1.6 | Koustav Chatterjee | Ethan Guo | 1-0 | 33 | Open |
| 62 | 2024-08-03 | SixDays July GMB 2024 | Budapest HUN | 9.3 | Bence Pribelszky | Koustav Chatterjee | 1/2-1/2 | 14 | Open |
| 63 | 2024-08-02 | SixDays July GMB 2024 | Budapest HUN | 8.4 | Koustav Chatterjee | Carissa Yip | 1-0 | 42 | Open |
| 64 | 2024-08-02 | SixDays July GMB 2024 | Budapest HUN | 7.2 | Ezra Paul Chambers | Koustav Chatterjee | 0-1 | 48 | Open |
| 65 | 2024-08-01 | SixDays July GMB 2024 | Budapest HUN | 6.5 | Koustav Chatterjee | Max Gedajlovic | 1-0 | 65 | Open |
| 66 | 2024-07-31 | SixDays July GMB 2024 | Budapest HUN | 5.1 | Koustav Chatterjee | Guohao Li | 1/2-1/2 | 48 | Open |
| 67 | 2024-07-31 | SixDays July GMB 2024 | Budapest HUN | 4.5 | Milan Pacher | Koustav Chatterjee | 1/2-1/2 | 35 | Open |
| 68 | 2024-07-30 | SixDays July GMB 2024 | Budapest HUN | 3.2 | Koustav Chatterjee | Tamas Jr. Fodor | 0-1 | 41 | Open |
| 69 | 2024-07-30 | SixDays July GMB 2024 | Budapest HUN | 2.4 | Sultan Chubakov | Koustav Chatterjee | 1/2-1/2 | 25 | Open |
| 70 | 2024-07-29 | SixDays July GMB 2024 | Budapest HUN | 1.3 | Koustav Chatterjee | Azarya Jodi Setyaki | 1-0 | 35 | Open |
| 71 | 2024-07-25 | 57th Biel Master Open | Biel SUI | 10.14 | Koustav Chatterjee | Alua Nurman | 1/2-1/2 | 50 | Open |
| 72 | 2024-07-24 | 57th Biel Master Open | Biel SUI | 9.12 | Eric Rosen | Koustav Chatterjee | 1/2-1/2 | 37 | Open |
| 73 | 2024-07-23 | 57th Biel Master Open | Biel SUI | 8.6 | Koustav Chatterjee | Mukhiddin Madaminov | 0-1 | 52 | Open |
| 74 | 2024-07-22 | 57th Biel Master Open | Biel SUI | 7.7 | Haowen Xue | Koustav Chatterjee | 1/2-1/2 | 73 | Open |
| 75 | 2024-07-20 | 57th Biel Master Open | Biel SUI | 6.5 | Koustav Chatterjee | S.P. Sethuraman | 1/2-1/2 | 47 | Open |
| 76 | 2024-07-19 | 57th Biel Master Open | Biel SUI | 5.4 | Alexander Moiseenko | Koustav Chatterjee | 1/2-1/2 | 17 | Open |
| 77 | 2024-07-18 | 57th Biel Master Open | Biel SUI | 4.2 | Koustav Chatterjee | Rinat Jumabayev | 1/2-1/2 | 29 | Open |
| 78 | 2024-07-17 | 57th Biel Master Open | Biel SUI | 3.7 | Irine Kharisma Sukandar | Koustav Chatterjee | 0-1 | 54 | Open |
| 79 | 2024-07-16 | 57th Biel Master Open | Biel SUI | 2.12 | Koustav Chatterjee | Tal Haimovich | 1-0 | 52 | Open |
| 80 | 2024-07-15 | 57th Biel Master Open | Biel SUI | 1.12 | Johannes Rappazzo | Koustav Chatterjee | 0-1 | 33 | Open |
| 81 | 2024-03-31 | College Final Four 2024 | Richardson USA | 3.2 | Irakli Beradze | Koustav Chatterjee | 1/2-1/2 | 18 | Open |
| 82 | 2024-03-30 | College Final Four 2024 | Richardson USA | 2.2 | Mikhail Al. Antipov | Koustav Chatterjee | 1-0 | 49 | Open |
| 83 | 2024-03-30 | College Final Four 2024 | Richardson USA | 1.1 | Koustav Chatterjee | Benjamin Gledura | 0-1 | 35 | Open |
| 84 | 2024-01-15 | 1000GM NY Winter GMB | New York USA | 9.3 | Joseph Levine | Koustav Chatterjee | 0-1 | 51 | Open |
| 85 | 2024-01-15 | 1000GM NY Winter GMB | New York USA | 8.4 | Koustav Chatterjee | Terry Luo | 1-0 | 47 | Open |
| 86 | 2024-01-14 | 1000GM NY Winter GMB | New York USA | 7.2 | Kyron Griffith | Koustav Chatterjee | 1/2-1/2 | 26 | Open |
| 87 | 2024-01-14 | 1000GM NY Winter GMB | New York USA | 6.5 | Koustav Chatterjee | Akira Nakada | 1-0 | 22 | Open |
| 88 | 2024-01-13 | 1000GM NY Winter GMB | New York USA | 5.1 | Koustav Chatterjee | Tanitoluwa Adewumi | 1/2-1/2 | 43 | Open |
| 89 | 2024-01-13 | 1000GM NY Winter GMB | New York USA | 4.5 | Alice Lee | Koustav Chatterjee | 0-1 | 36 | Open |
| 90 | 2024-01-12 | 1000GM NY Winter GMB | New York USA | 3.2 | Koustav Chatterjee | Mark Paragua | 1/2-1/2 | 20 | Open |
| 91 | 2024-01-12 | 1000GM NY Winter GMB | New York USA | 2.4 | Gabor Nagy | Koustav Chatterjee | 1/2-1/2 | 4 | Open |
| 92 | 2024-01-11 | 1000GM NY Winter GMB | New York USA | 1.3 | Koustav Chatterjee | William Graif | 1-0 | 31 | Open |
| 93 | 2024-01-07 | Pan-Am Intercollegiate | McAllen, TX USA | 6.9 | Awonder Liang | Koustav Chatterjee | 1/2-1/2 | 79 | Open |
| 94 | 2024-01-06 | Pan-Am Intercollegiate | McAllen, TX USA | 4.7 | Viktor Gazik | Koustav Chatterjee | 1-0 | 64 | Open |
| 95 | 2023-12-30 | 33rd North American Open | Las Vegas USA | 9.3 | Koustav Chatterjee | Arman Mikaelyan | 1-0 | 33 | Open |
| 96 | 2023-12-29 | 33rd North American Open | Las Vegas USA | 8.3 | Steven Zierk | Koustav Chatterjee | 0-1 | 42 | Open |
| 97 | 2023-12-29 | 33rd North American Open | Las Vegas USA | 7.8 | Koustav Chatterjee | Jacob Furfine | 1-0 | 42 | Open |
| 98 | 2023-12-28 | 33rd North American Open | Las Vegas USA | 6.1 | Andrei Macovei | Koustav Chatterjee | 1/2-1/2 | 57 | Open |
| 99 | 2023-12-28 | 33rd North American Open | Las Vegas USA | 5.15 | Koustav Chatterjee | Zoey Tang | 1-0 | 67 | Open |
| 100 | 2023-12-27 | 33rd North American Open | Las Vegas USA | 4.7 | Richard Bitoon | Koustav Chatterjee | 1-0 | 48 | Open |
| 101 | 2023-11-26 | US Chess Masters 2023 | Charlotte USA | 9.21 | Koustav Chatterjee | Liam Putnam | 1-0 | 40 | Open |
| 102 | 2023-11-26 | US Chess Masters 2023 | Charlotte USA | 8.14 | Balaji Daggupati | Koustav Chatterjee | 1-0 | 48 | Open |
| 103 | 2023-11-25 | US Chess Masters 2023 | Charlotte USA | 7.2 | Koustav Chatterjee | Alice Lee | 1-0 | 38 | Open |
| 104 | 2023-11-25 | US Chess Masters 2023 | Charlotte USA | 6.7 | Mackenzie Molner | Koustav Chatterjee | 1/2-1/2 | 50 | Open |
| 105 | 2023-11-24 | US Chess Masters 2023 | Charlotte USA | 5.13 | Koustav Chatterjee | Craig Hilby | 1-0 | 107 | Open |
| 106 | 2023-11-24 | US Chess Masters 2023 | Charlotte USA | 4.12 | Karolis Juksta | Koustav Chatterjee | 1/2-1/2 | 10 | Open |
| 107 | 2023-11-23 | US Chess Masters 2023 | Charlotte USA | 3.22 | Koustav Chatterjee | Harshid Kunka | 1-0 | 51 | Open |
| 108 | 2023-11-23 | US Chess Masters 2023 | Charlotte USA | 2.14 | Dean Ippolito | Koustav Chatterjee | 1/2-1/2 | 30 | Open |
| 109 | 2023-11-22 | US Chess Masters 2023 | Charlotte USA | 1.17 | Koustav Chatterjee | Anastasya Paramzina | 1-0 | 27 | Open |
| 110 | 2023-09-17 | Texas Collegiate Finals | Brownsville USA | 4.1 | Irakli Beradze | Koustav Chatterjee | 1/2-1/2 | 29 | Open |
| 111 | 2023-09-17 | Texas Collegiate Finals | Brownsville USA | 3.5 | Koustav Chatterjee | Aleksey Sorokin | 1/2-1/2 | 33 | Open |
| 112 | 2023-09-16 | Texas Collegiate Finals | Brownsville USA | 2.1 | Viktor Gazik | Koustav Chatterjee | 0-1 | 33 | Open |
| 113 | 2023-09-16 | Texas Collegiate Finals | Brownsville USA | 1.1 | Koustav Chatterjee | Nathaniel Philip Moor | 1-0 | 49 | Open |
| 114 | 2023-04-16 | II Menorca Open 2023 | Ciutadella de Menorca ESP | 9.2 | Hans Moke Niemann | Koustav Chatterjee | 1/2-1/2 | 22 | Open |
| 115 | 2023-04-15 | II Menorca Open 2023 | Ciutadella de Menorca ESP | 8.7 | Koustav Chatterjee | Alexandr Fier | 1-0 | 52 | Open |
| 116 | 2023-04-15 | II Menorca Open 2023 | Ciutadella de Menorca ESP | 7.12 | Koustav Chatterjee | Yi Xu | 1-0 | 7 | Open |
| 117 | 2023-04-13 | II Menorca Open 2023 | Ciutadella de Menorca ESP | 4.5 | Koustav Chatterjee | Gukesh D | 0-1 | 31 | Open |
| 118 | 2023-04-09 | Fagernes GM Open 2023 | Fagernes NOR | 9.3 | Samvel Ter-Sahakyan | Koustav Chatterjee | 1-0 | 31 | Open |
| 119 | 2023-04-08 | Fagernes GM Open 2023 | Fagernes NOR | 8.4 | Koustav Chatterjee | Raja Rithvik R | 1-0 | 39 | Open |
| 120 | 2023-04-07 | Fagernes GM Open 2023 | Fagernes NOR | 7.4 | Koustav Chatterjee | Eduardas Rozentalis | 1/2-1/2 | 38 | Open |
| 121 | 2023-04-06 | Fagernes GM Open 2023 | Fagernes NOR | 6.1 | Abhimanyu Puranik | Koustav Chatterjee | 1/2-1/2 | 19 | Open |
| 122 | 2023-04-05 | Fagernes GM Open 2023 | Fagernes NOR | 5.4 | Savitha Shri B | Koustav Chatterjee | 0-1 | 82 | Open |
| 123 | 2023-04-05 | Fagernes GM Open 2023 | Fagernes NOR | 4.2 | Koustav Chatterjee | Vahap Sanal | 0-1 | 34 | Open |
| 124 | 2023-04-04 | Fagernes GM Open 2023 | Fagernes NOR | 3.4 | Lukas Dotzer | Koustav Chatterjee | 1-0 | 79 | Open |
| 125 | 2023-04-03 | Fagernes GM Open 2023 | Fagernes NOR | 2.6 | Koustav Chatterjee | Mads Vestby-Ellingsen | 1-0 | 32 | Open |
| 126 | 2023-04-02 | Fagernes GM Open 2023 | Fagernes NOR | 1.8 | Sourath Biswas | Koustav Chatterjee | 0-1 | 22 | Open |
| 127 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 9 | Matthias Bluebaum | Koustav Chatterjee | 1-0 | 49 | Open |
| 128 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 8 | Koustav Chatterjee | Wesley So | 0-1 | 35 | Open |
| 129 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 7 | Rudik Makarian | Koustav Chatterjee | 0-1 | 52 | Open |
| 130 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 6 | Rasmus Svane | Koustav Chatterjee | 0-1 | 24 | Open |
| 131 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 5 | Koustav Chatterjee | Tuan Minh Le | 0-1 | 28 | Open |
| 132 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 4 | Koustav Chatterjee | Olexandr Bortnyk | 1-0 | 54 | Open |
| 133 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 3 | Roman Kuzmin | Koustav Chatterjee | 0-1 | 91 | Open |
| 134 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 2 | Koustav Chatterjee | Aleksander Hnydiuk | 1-0 | 48 | Open |
| 135 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 1 | Pavel Salman | Koustav Chatterjee | 0-1 | 42 | Open |
| 136 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 11 | Sven Tica | Koustav Chatterjee | 1-0 | 13 | Open |
| 137 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 10 | Koustav Chatterjee | Miguel Santos Ruiz | 1-0 | 50 | Open |
| 138 | 2023-01-03 | 59th ch-IND 2022-23 | New Delhi IND | 13.4 | Hari Madhavan N B | Koustav Chatterjee | 1/2-1/2 | 68 | Open |
| 139 | 2023-01-02 | 59th ch-IND 2022-23 | New Delhi IND | 12.1 | Koustav Chatterjee | Karthik Venkataraman | 0-1 | 35 | Open |
| 140 | 2023-01-01 | 59th ch-IND 2022-23 | New Delhi IND | 11.2 | Srihari L R | Koustav Chatterjee | 1/2-1/2 | 56 | Open |
| 141 | 2022-12-31 | 59th ch-IND 2022-23 | New Delhi IND | 10.1 | Koustav Chatterjee | Guha Mitrabha | 1/2-1/2 | 59 | Open |
| 142 | 2022-12-30 | 59th ch-IND 2022-23 | New Delhi IND | 9.1 | S.P. Sethuraman | Koustav Chatterjee | 0-1 | 50 | Open |
| 143 | 2022-12-29 | 59th ch-IND 2022-23 | New Delhi IND | 8.4 | Koustav Chatterjee | Vignesh N R | 1-0 | 57 | Open |
| 144 | 2022-12-28 | 59th ch-IND 2022-23 | New Delhi IND | 7.6 | Aaryan Varshney | Koustav Chatterjee | 0-1 | 63 | Open |
| 145 | 2022-12-27 | 59th ch-IND 2022-23 | New Delhi IND | 6.3 | Koustav Chatterjee | Aronyak Ghosh | 1/2-1/2 | 20 | Open |
| 146 | 2022-12-26 | 59th ch-IND 2022-23 | New Delhi IND | 5.1 | Abhijeet Gupta | Koustav Chatterjee | 1-0 | 32 | Open |
| 147 | 2022-12-25 | 59th ch-IND 2022-23 | New Delhi IND | 4.4 | Koustav Chatterjee | S. Nitin | 1-0 | 43 | Open |
| 148 | 2022-12-24 | 59th ch-IND 2022-23 | New Delhi IND | 3.5 | Srihari L | Koustav Chatterjee | 0-1 | 54 | Open |
| 149 | 2022-12-23 | 59th ch-IND 2022-23 | New Delhi IND | 2.7 | Koustav Chatterjee | Anish Gandhi | 1-0 | 35 | Open |
| 150 | 2022-12-22 | 59th ch-IND 2022-23 | New Delhi IND | 1.8 | Chandar Raju | Koustav Chatterjee | 0-1 | 32 | Open |
| 151 | 2022-12-10 | Bangabandhu Premier 2022 | Dhaka BAN | 11.3 | Md. Siddiqur Rahman | Koustav Chatterjee | 0-1 | 40 | Open |
| 152 | 2022-12-09 | Bangabandhu Premier 2022 | Dhaka BAN | 10.2 | Koustav Chatterjee | Sandipan Chanda | 1-0 | 47 | Open |
| 153 | 2022-12-08 | Bangabandhu Premier 2022 | Dhaka BAN | 9.4 | Rahman Mohammad Fahad | Koustav Chatterjee | 1/2-1/2 | 45 | Open |
| 154 | 2022-12-07 | Bangabandhu Premier 2022 | Dhaka BAN | 8.1 | Koustav Chatterjee | Muthaiah AL | 0-1 | 40 | Open |
| 155 | 2022-12-06 | Bangabandhu Premier 2022 | Dhaka BAN | 7.5 | Garg Aradhya | Koustav Chatterjee | 0-1 | 46 | Open |
| 156 | 2022-12-04 | Bangabandhu Premier 2022 | Dhaka BAN | 5.5 | Koustav Chatterjee | Sohel Habibur Rahman | 1-0 | 32 | Open |
| 157 | 2022-12-03 | Bangabandhu Premier 2022 | Dhaka BAN | 4.1 | Pa Iniyan | Koustav Chatterjee | 1/2-1/2 | 19 | Open |
| 158 | 2022-12-02 | Bangabandhu Premier 2022 | Dhaka BAN | 3.4 | Koustav Chatterjee | Diptayan Ghosh | 0-1 | 27 | Open |
| 159 | 2022-12-01 | Bangabandhu Premier 2022 | Dhaka BAN | 2.2 | Levan Pantsulaia | Koustav Chatterjee | 0-1 | 34 | Open |
| 160 | 2022-11-30 | Bangabandhu Premier 2022 | Dhaka BAN | 1.3 | Koustav Chatterjee | Aaryan Varshney | 1/2-1/2 | 96 | Open |
| 161 | 2022-11-03 | Asian Continental Blitz | Delhi IND | 9.8 | Shamsiddin Vokhidov | Koustav Chatterjee | 1/2-1/2 | 61 | Open |
| 162 | 2022-11-03 | 19th Asian Continental | Delhi IND | 9.4 | S.P. Sethuraman | Koustav Chatterjee | 1-0 | 41 | Open |
| 163 | 2022-11-03 | Asian Continental Blitz | Delhi IND | 8.1 | Koustav Chatterjee | Pranesh M | 1/2-1/2 | 82 | Open |
| 164 | 2022-11-03 | Asian Continental Blitz | Delhi IND | 7.6 | Narayanan S L | Koustav Chatterjee | 1/2-1/2 | 47 | Open |
| 165 | 2022-11-03 | Asian Continental Blitz | Delhi IND | 6.2 | Koustav Chatterjee | Aaryan Varshney | 1-0 | 60 | Open |
| 166 | 2022-11-03 | Asian Continental Blitz | Delhi IND | 5.6 | S.P. Sethuraman | Koustav Chatterjee | 1-0 | 50 | Open |
| 167 | 2022-11-03 | Asian Continental Blitz | Delhi IND | 4.3 | Koustav Chatterjee | Leon Luke Mendonca | 0-1 | 51 | Open |
| 168 | 2022-11-03 | Asian Continental Blitz | Delhi IND | 3.1 | B. Adhiban | Koustav Chatterjee | 0-1 | 83 | Open |
| 169 | 2022-11-03 | Asian Continental Blitz | Delhi IND | 2.4 | Koustav Chatterjee | Rinat Jumabayev | 1-0 | 34 | Open |
| 170 | 2022-11-03 | Asian Continental Blitz | Delhi IND | 1.3 | Manish Anto Cristiano F | Koustav Chatterjee | 0-1 | 42 | Open |
| 171 | 2022-11-02 | 19th Asian Continental | Delhi IND | 8.1 | Koustav Chatterjee | Praggnanandhaa R | 0-1 | 53 | Open |
| 172 | 2022-11-01 | 19th Asian Continental | Delhi IND | 7.4 | Chithambaram VR. Aravindh | Koustav Chatterjee | 0-1 | 73 | Open |
| 173 | 2022-10-31 | 19th Asian Continental | Delhi IND | 6.1 | Koustav Chatterjee | Viani Antonio Dcunha | 1-0 | 65 | Open |
| 174 | 2022-10-30 | 19th Asian Continental | Delhi IND | 5.3 | Harsha Bharathakoti | Koustav Chatterjee | 1-0 | 49 | Open |
| 175 | 2022-10-29 | 19th Asian Continental | Delhi IND | 4.4 | Koustav Chatterjee | Rinat Jumabayev | 1-0 | 32 | Open |
| 176 | 2022-10-28 | 19th Asian Continental | Delhi IND | 3.1 | Murali Karthikeyan | Koustav Chatterjee | 1/2-1/2 | 52 | Open |
| 177 | 2022-10-27 | 19th Asian Continental | Delhi IND | 2.1 | Koustav Chatterjee | N Krishna Teja | 1-0 | 22 | Open |
| 178 | 2022-09-26 | Chhattisgarh CM Masters | Raipur IND | 8.12 | Srihari L | Koustav Chatterjee | 1-0 | 25 | Open |
| 179 | 2022-09-25 | Chhattisgarh CM Masters | Raipur IND | 7.4 | Koustav Chatterjee | Ajay Karthikeyan | 0-1 | 40 | Open |
| 180 | 2022-09-24 | Chhattisgarh CM Masters | Raipur IND | 6.9 | Subhayan Kundu | Koustav Chatterjee | 0-1 | 36 | Open |
| 181 | 2022-09-23 | Chhattisgarh CM Masters | Raipur IND | 5.14 | Koustav Chatterjee | Ayush Sharma | 1-0 | 25 | Open |
| 182 | 2022-09-22 | Chhattisgarh CM Masters | Raipur IND | 4.5 | Himal Gusain | Koustav Chatterjee | 1-0 | 56 | Open |
| 183 | 2022-09-21 | Chhattisgarh CM Masters | Raipur IND | 3.5 | Koustav Chatterjee | Panesar Vedant | 1/2-1/2 | 31 | Open |
| 184 | 2022-09-20 | Chhattisgarh CM Masters | Raipur IND | 2.5 | M Chakravarthi Reddy | Koustav Chatterjee | 0-1 | 23 | Open |
| 185 | 2022-09-19 | Chhattisgarh CM Masters | Raipur IND | 1.7 | Koustav Chatterjee | Gaurav Rajesh Zagade | 1-0 | 32 | Open |
| 186 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 9 | Grigoriy Oparin | Koustav Chatterjee | 1-0 | 42 | Open |
| 187 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 8 | Nils Grandelius | Koustav Chatterjee | 1/2-1/2 | 40 | Open |
| 188 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 7 | Koustav Chatterjee | Jakub Kosakowski | 1-0 | 55 | Open |
| 189 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 6 | Yoav Milikow | Koustav Chatterjee | 0-1 | 69 | Open |
| 190 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 5 | Koustav Chatterjee | Rasmus Svane | 1-0 | 51 | Open |
| 191 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 4 | Koustav Chatterjee | Yuliesky Rodriguez Garcia | 1-0 | 40 | Open |
| 192 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 3 | Nino Batsiashvili | Koustav Chatterjee | 0-1 | 56 | Open |
| 193 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 2 | Koustav Chatterjee | Tom Decuigniere | 0-1 | 40 | Open |
| 194 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 1 | Barbara Skuhala | Koustav Chatterjee | 0-1 | 56 | Open |
| 195 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 11 | Koustav Chatterjee | Gyula Pap | 0-1 | 65 | Open |
| 196 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 10 | Koustav Chatterjee | David Paravyan | 0-1 | 43 | Open |
| 197 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 5 | Kaan Kucuksari | Koustav Chatterjee | 1-0 | 49 | Open |
| 198 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 4 | Koustav Chatterjee | Ivan Martic | 1/2-1/2 | 78 | Open |
| 199 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 3 | Mohamed Ezat | Koustav Chatterjee | 1-0 | 50 | Open |
| 200 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 2 | Koustav Chatterjee | Iung Alicio de O. Pinheiro | 1-0 | 76 | Open |
| 201 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 1 | Volodymyr Vusatiuk | Koustav Chatterjee | 0-1 | 69 | Open |
| 202 | 2022-07-23 | Svetozar Gligoric Mem | Belgrade SRB | 9.2 | Koustav Chatterjee | Suat Atalik | 1-0 | 25 | Open |
| 203 | 2022-07-22 | Svetozar Gligoric Mem | Belgrade SRB | 8.3 | Rohith Krishna S | Koustav Chatterjee | 0-1 | 35 | Open |
| 204 | 2022-07-21 | Svetozar Gligoric Mem | Belgrade SRB | 7.1 | Koustav Chatterjee | Alexandr Predke | 0-1 | 35 | Open |
| 205 | 2022-07-21 | Svetozar Gligoric Mem | Belgrade SRB | 6.2 | Harikrishnan.A.Ra | Koustav Chatterjee | 0-1 | 43 | Open |
| 206 | 2022-07-20 | Svetozar Gligoric Mem | Belgrade SRB | 5.2 | Koustav Chatterjee | V Pranav | 1-0 | 33 | Open |
| 207 | 2022-07-19 | Svetozar Gligoric Mem | Belgrade SRB | 4.3 | Koustav Chatterjee | Neelash Saha | 1/2-1/2 | 15 | Open |
| 208 | 2022-07-19 | Svetozar Gligoric Mem | Belgrade SRB | 3.6 | Batsukh Anand | Koustav Chatterjee | 0-1 | 43 | Open |
| 209 | 2022-07-18 | Svetozar Gligoric Mem | Belgrade SRB | 2.6 | Koustav Chatterjee | Rucha Pujari | 1-0 | 37 | Open |
| 210 | 2022-07-17 | Svetozar Gligoric Mem | Belgrade SRB | 1.9 | Branimir Kostic | Koustav Chatterjee | 0-1 | 53 | Open |
| 211 | 2022-07-16 | 15th Paracin Open A 2022 | Paracin SRB | 9.8 | Koustav Chatterjee | Anuj Shrivatri | 1/2-1/2 | 45 | Open |
| 212 | 2022-07-15 | 15th Paracin Open A 2022 | Paracin SRB | 8.15 | Kushagra Mohan | Koustav Chatterjee | 0-1 | 26 | Open |
| 213 | 2022-07-14 | 15th Paracin Open A 2022 | Paracin SRB | 7.6 | Koustav Chatterjee | Emin Ohanyan | 0-1 | 59 | Open |
| 214 | 2022-07-13 | 15th Paracin Open A 2022 | Paracin SRB | 6.7 | Samant Aditya S | Koustav Chatterjee | 1/2-1/2 | 56 | Open |
| 215 | 2022-07-12 | 15th Paracin Open A 2022 | Paracin SRB | 5.1 | Koustav Chatterjee | Praggnanandhaa R | 0-1 | 32 | Open |
| 216 | 2022-07-11 | 15th Paracin Open A 2022 | Paracin SRB | 4.4 | Koustav Chatterjee | Rao Sharan | 1-0 | 31 | Open |
| 217 | 2022-07-09 | 15th Paracin Open A 2022 | Paracin SRB | 3.5 | Vuk Djordjevic | Koustav Chatterjee | 0-1 | 27 | Open |
| 218 | 2022-07-09 | 15th Paracin Open A 2022 | Paracin SRB | 2.1 | Koustav Chatterjee | Yichen Han | 1-0 | 27 | Open |
| 219 | 2022-07-08 | 15th Paracin Open A 2022 | Paracin SRB | 1.12 | Vaibhav Jayant Raut | Koustav Chatterjee | 0-1 | 34 | Open |
| 220 | 2022-07-06 | Serbia Open 2022 | Novi Sad SRB | 9.4 | Koustav Chatterjee | Alexander Motylev | 1/2-1/2 | 79 | Open |
| 221 | 2022-07-05 | Serbia Open 2022 | Novi Sad SRB | 8.15 | Shahil Dey | Koustav Chatterjee | 0-1 | 44 | Open |
| 222 | 2022-07-04 | Serbia Open 2022 | Novi Sad SRB | 7.14 | Koustav Chatterjee | Teodora Injac | 1/2-1/2 | 74 | Open |
| 223 | 2022-07-03 | Serbia Open 2022 | Novi Sad SRB | 6.1 | Kushagra Mohan | Koustav Chatterjee | 1/2-1/2 | 41 | Open |
| 224 | 2022-07-02 | Serbia Open 2022 | Novi Sad SRB | 5.21 | Koustav Chatterjee | Anuj Shrivatri | 1-0 | 36 | Open |
| 225 | 2022-07-01 | Serbia Open 2022 | Novi Sad SRB | 4.33 | Zan Tomazini | Koustav Chatterjee | 0-1 | 37 | Open |
| 226 | 2022-06-29 | Serbia Open 2022 | Novi Sad SRB | 2.23 | Rout Padmini | Koustav Chatterjee | 1-0 | 40 | Open |
| 227 | 2022-06-28 | Serbia Open 2022 | Novi Sad SRB | 1.37 | Koustav Chatterjee | Dejan Leskur | 1-0 | 41 | Open |
| 228 | 2022-03-13 | MPL 50th National Junior | Gurugram IND | 9.4 | Koustav Chatterjee | Pa Iniyan | 1/2-1/2 | 77 | Open |
| 229 | 2022-03-12 | MPL 50th National Junior | Gurugram IND | 8.4 | Manish Anto Cristiano F | Koustav Chatterjee | 0-1 | 62 | Open |
| 230 | 2022-03-12 | MPL 50th National Junior | Gurugram IND | 7.1 | Koustav Chatterjee | Utsab Chatterjee | 0-1 | 53 | Open |
| 231 | 2022-03-11 | MPL 50th National Junior | Gurugram IND | 6.2 | Hari Madhavan N B | Koustav Chatterjee | 0-1 | 52 | Open |
| 232 | 2022-03-11 | MPL 50th National Junior | Gurugram IND | 5.3 | Koustav Chatterjee | Rohith Krishna S | 1-0 | 38 | Open |
| 233 | 2022-03-10 | MPL 50th National Junior | Gurugram IND | 4.2 | Aaryan Varshney | Koustav Chatterjee | 1/2-1/2 | 25 | Open |
| 234 | 2022-03-10 | MPL 50th National Junior | Gurugram IND | 3.3 | Koustav Chatterjee | Mahendra Teja Mekala | 1-0 | 32 | Open |
| 235 | 2022-03-09 | MPL 50th National Junior | Gurugram IND | 2.3 | Parekh Vishrut | Koustav Chatterjee | 0-1 | 36 | Open |
| 236 | 2022-03-09 | MPL 50th National Junior | Gurugram IND | 1.4 | Koustav Chatterjee | Boda Gyaneshwar | 1-0 | 22 | Open |
| 237 | 2022-03-03 | 58th ch-IND 2022 | Kanpur IND | 11.8 | Lalit Babu M R | Koustav Chatterjee | 0-1 | 30 | Open |
| 238 | 2022-03-01 | 58th ch-IND 2022 | Kanpur IND | 9.13 | Aaryan Varshney | Koustav Chatterjee | 1/2-1/2 | 54 | Open |
| 239 | 2022-03-01 | 58th ch-IND 2022 | Kanpur IND | 8.12 | Koustav Chatterjee | K. Ratnakaran | 1/2-1/2 | 46 | Open |
| 240 | 2022-02-28 | 58th ch-IND 2022 | Kanpur IND | 7.11 | Panda Sambit | Koustav Chatterjee | 1/2-1/2 | 61 | Open |
| 241 | 2022-02-28 | 58th ch-IND 2022 | Kanpur IND | 6.2 | Koustav Chatterjee | Gukesh D | 0-1 | 61 | Open |
| 242 | 2022-02-27 | 58th ch-IND 2022 | Kanpur IND | 5.6 | Murali Karthikeyan | Koustav Chatterjee | 0-1 | 59 | Open |
| 243 | 2022-02-26 | 58th ch-IND 2022 | Kanpur IND | 4.7 | Koustav Chatterjee | S.P. Sethuraman | 1-0 | 58 | Open |
| 244 | 2022-02-26 | 58th ch-IND 2022 | Kanpur IND | 3.1 | B. Adhiban | Koustav Chatterjee | 1/2-1/2 | 73 | Open |
| 245 | 2021-10-27 | Sheikh Russel GM 2021 | Dhaka BAN | 9.7 | G.A. Stany | Koustav Chatterjee | 1/2-1/2 | 22 | Open |
| 246 | 2021-10-26 | Sheikh Russel GM 2021 | Dhaka BAN | 8.3 | Koustav Chatterjee | Vugar Asadli | 1/2-1/2 | 40 | Open |
| 247 | 2021-10-25 | Sheikh Russel GM 2021 | Dhaka BAN | 7.11 | Vignesh N R | Koustav Chatterjee | 0-1 | 61 | Open |
| 248 | 2021-10-24 | Sheikh Russel GM 2021 | Dhaka BAN | 6.6 | Koustav Chatterjee | Michal Krasenkow | 1/2-1/2 | 55 | Open |
| 249 | 2021-10-23 | Sheikh Russel GM 2021 | Dhaka BAN | 5.14 | V Pranav | Koustav Chatterjee | 0-1 | 74 | Open |
| 250 | 2021-10-22 | Sheikh Russel GM 2021 | Dhaka BAN | 4.8 | Sundar M. Shyam | Koustav Chatterjee | 1-0 | 65 | Open |
| 251 | 2021-10-21 | Sheikh Russel GM 2021 | Dhaka BAN | 3.11 | Koustav Chatterjee | Visakh N R | 1-0 | 44 | Open |
| 252 | 2021-10-20 | Sheikh Russel GM 2021 | Dhaka BAN | 2.6 | Deepan Chakkravarthy J. | Koustav Chatterjee | 1/2-1/2 | 44 | Open |
| 253 | 2021-10-19 | Sheikh Russel GM 2021 | Dhaka BAN | 1.33 | Koustav Chatterjee | Mahtabuddin Ahmed | 1-0 | 35 | Open |
| 254 | 2021-10-18 | 2nd Year Long GM 2021 | Dhaka BAN | 9.1 | Koustav Chatterjee | Asylbek Abdyzhapar | 1/2-1/2 | 0 | Open |
| 255 | 2021-10-17 | 2nd Year Long GM 2021 | Dhaka BAN | 8.5 | Rahman Mohammad Fahad | Koustav Chatterjee | 1/2-1/2 | 8 | Open |
| 256 | 2021-10-16 | 2nd Year Long GM 2021 | Dhaka BAN | 7.2 | Koustav Chatterjee | 14104202 | 1-0 | 42 | Open |
| 257 | 2021-10-15 | 2nd Year Long GM 2021 | Dhaka BAN | 6.4 | Sanket Chakravarty | Koustav Chatterjee | 0-1 | 28 | Open |
| 258 | 2021-10-14 | 2nd Year Long GM 2021 | Dhaka BAN | 5.3 | Koustav Chatterjee | Choudhury Anata | 1/2-1/2 | 52 | Open |
| 259 | 2021-10-13 | 2nd Year Long GM 2021 | Dhaka BAN | 4.3 | Alexander Zubarev | Koustav Chatterjee | 1/2-1/2 | 11 | Open |
| 260 | 2021-10-12 | 2nd Year Long GM 2021 | Dhaka BAN | 3.4 | Koustav Chatterjee | Aronyak Ghosh | 1/2-1/2 | 3 | Open |
| 261 | 2021-10-11 | 2nd Year Long GM 2021 | Dhaka BAN | 2.2 | Neelash Saha | Koustav Chatterjee | 1/2-1/2 | 13 | Open |
| 262 | 2021-10-08 | 1st Year Long IM 2021 | Dhaka BAN | 11.1 | Koustav Chatterjee | Sheikh Nasir Ahmed | 1-0 | 53 | Open |
| 263 | 2021-10-07 | 1st Year Long IM 2021 | Dhaka BAN | 10.4 | Mahmood Lodhi | Koustav Chatterjee | 0-1 | 48 | Open |
| 264 | 2021-10-06 | 1st Year Long IM 2021 | Dhaka BAN | 9.2 | Koustav Chatterjee | Asylbek Abdyzhapar | 1-0 | 36 | Open |
| 265 | 2021-10-05 | 1st Year Long IM 2021 | Dhaka BAN | 8.3 | Sourath Biswas | Koustav Chatterjee | 0-1 | 52 | Open |
| 266 | 2021-10-04 | 1st Year Long IM 2021 | Dhaka BAN | 7.3 | Koustav Chatterjee | Md. Taibur Rahman | 1-0 | 56 | Open |
| 267 | 2021-10-03 | 1st Year Long IM 2021 | Dhaka BAN | 6.2 | Reja Neer Manon | Koustav Chatterjee | 0-1 | 62 | Open |
| 268 | 2021-10-02 | 1st Year Long IM 2021 | Dhaka BAN | 5.4 | Koustav Chatterjee | Debaraj Chatterjee | 1-0 | 50 | Open |
| 269 | 2021-10-01 | 1st Year Long IM 2021 | Dhaka BAN | 4.1 | Alexey Kislinsky | Koustav Chatterjee | 0-1 | 41 | Open |
| 270 | 2021-10-01 | 1st Year Long IM 2021 | Dhaka BAN | 3.5 | Koustav Chatterjee | Mehdi Hasan Parag | 1/2-1/2 | 94 | Open |
| 271 | 2021-09-29 | 1st Year Long IM 2021 | Dhaka BAN | 1.5 | Tahsin Tajwar Zia | Koustav Chatterjee | 1-0 | 30 | Open |
| 272 | 2021-09-27 | Joytu Sheikh Hasina GM Op | Dhaka BAN | 9.7 | Koustav Chatterjee | Enamul Hossain | 1/2-1/2 | 41 | Open |
| 273 | 2021-09-26 | Joytu Sheikh Hasina GM Op | Dhaka BAN | 8.2 | Guha Mitrabha | Koustav Chatterjee | 1-0 | 55 | Open |
| 274 | 2021-09-25 | Joytu Sheikh Hasina GM Op | Dhaka BAN | 7.7 | Alexander Zubarev | Koustav Chatterjee | 0-1 | 95 | Open |
| 275 | 2021-09-24 | Joytu Sheikh Hasina GM Op | Dhaka BAN | 6.7 | Koustav Chatterjee | Srijit Paul | 1/2-1/2 | 47 | Open |
| 276 | 2021-09-23 | Joytu Sheikh Hasina GM Op | Dhaka BAN | 5.2 | Sayantan Das | Koustav Chatterjee | 1-0 | 22 | Open |
| 277 | 2021-09-22 | Joytu Sheikh Hasina GM Op | Dhaka BAN | 4.4 | Koustav Chatterjee | Shete Sammed Jaykumar | 1-0 | 47 | Open |
| 278 | 2021-09-21 | Joytu Sheikh Hasina GM Op | Dhaka BAN | 3.9 | Rahman Mohammad Fahad | Koustav Chatterjee | 0-1 | 36 | Open |
| 279 | 2021-09-20 | Joytu Sheikh Hasina GM Op | Dhaka BAN | 2.9 | Koustav Chatterjee | M Sasith Nipun Piyumantha | 1/2-1/2 | 30 | Open |
| 280 | 2021-09-19 | Joytu Sheikh Hasina GM Op | Dhaka BAN | 1.11 | Haque Nayem | Koustav Chatterjee | 0-1 | 37 | Open |
| 281 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 8 | Alexander Gelman | Koustav Chatterjee | 1-0 | 48 | Open |
| 282 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 7 | Koustav Chatterjee | Christian Stevens | 1/2-1/2 | 69 | Open |
| 283 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 6 | Gulmira Dauletova | Koustav Chatterjee | 0-1 | 52 | Open |
| 284 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 5 | Koustav Chatterjee | Sargis A. Manukyan | 0-1 | 103 | Open |
| 285 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 4 | Viachaslau Zarubitski | Koustav Chatterjee | 1-0 | 58 | Open |
| 286 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 3 | Koustav Chatterjee | Ricardo Maruchi Desideri | 1-0 | 34 | Open |
| 287 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 2 | Koustav Chatterjee | Elliott Winslow | 1-0 | 46 | Open |
| 288 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 1 | Maxim Matlakov | Koustav Chatterjee | 1-0 | 35 | Open |
| 289 | 2021-03-29 | TCh-BAN Premier 2021 | Dhaka BAN | 11.1 | Koustav Chatterjee | Md. Taibur Rahman | 1-0 | 30 | Open |
| 290 | 2021-03-28 | TCh-BAN Premier 2021 | Dhaka BAN | 10.5 | Koustav Chatterjee | Hossain Md. Masum | 1-0 | 27 | Open |
| 291 | 2021-03-26 | TCh-BAN Premier 2021 | Dhaka BAN | 8.5 | Osman Shaon Md. Shawket Bin | Koustav Chatterjee | 0-1 | 28 | Open |
| 292 | 2021-03-25 | TCh-BAN Premier 2021 | Dhaka BAN | 7.1 | Koustav Chatterjee | Kundu Kaustuv | 1-0 | 31 | Open |
| 293 | 2021-03-24 | TCh-BAN Premier 2021 | Dhaka BAN | 6.4 | Koustav Chatterjee | Mehdi Hasan Parag | 1-0 | 37 | Open |
| 294 | 2021-03-23 | TCh-BAN Premier 2021 | Dhaka BAN | 5.2 | Koustav Chatterjee | Sanket Chakravarty | 1-0 | 48 | Open |
| 295 | 2021-03-21 | TCh-BAN Premier 2021 | Dhaka BAN | 3.3 | Ziaur Rahman | Koustav Chatterjee | 1/2-1/2 | 65 | Open |
| 296 | 2021-03-20 | TCh-BAN Premier 2021 | Dhaka BAN | 2.2 | Khandaker Aminul Islam | Koustav Chatterjee | 0-1 | 47 | Open |
| 297 | 2021-03-19 | TCh-BAN Premier 2021 | Dhaka BAN | 1.4 | Koustav Chatterjee | Narayanan S L | 0-1 | 169 | Open |
| 298 | 2020-12-06 | Super Juniors CB IND Elim | lichess.org INT | 1.3 | Arjun Kalyan | Koustav Chatterjee | 1-0 | 39 | Open |
| 299 | 2020-12-06 | Super Juniors CB IND Elim | lichess.org INT | 1.2 | Koustav Chatterjee | Arjun Kalyan | 1/2-1/2 | 63 | Open |
| 300 | 2020-12-06 | Super Juniors CB IND Elim | lichess.org INT | 1.1 | Arjun Kalyan | Koustav Chatterjee | 1-0 | 18 | Open |
| 301 | 2020-12-01 | RBI Open Qualifier 1 2020 | lichess.org INT | 9 | Xuan Zhang | Koustav Chatterjee | 0-1 | 42 | Open |
| 302 | 2020-12-01 | RBI Open Qualifier 1 2020 | lichess.org INT | 8 | Koustav Chatterjee | Xiangrui Kong | 1-0 | 60 | Open |
| 303 | 2020-12-01 | RBI Open Qualifier 1 2020 | lichess.org INT | 6 | Daniel Barria Zuniga | Koustav Chatterjee | 1-0 | 41 | Open |
| 304 | 2020-12-01 | RBI Open Qualifier 1 2020 | lichess.org INT | 5 | Chithambaram VR. Aravindh | Koustav Chatterjee | 1-0 | 38 | Open |
| 305 | 2020-12-01 | RBI Open Qualifier 1 2020 | lichess.org INT | 4 | Koustav Chatterjee | Temur Kuybokarov | 0-1 | 41 | Open |
| 306 | 2020-12-01 | RBI Open Qualifier 1 2020 | lichess.org INT | 3 | Koustav Chatterjee | Manuel Petrosyan | 1-0 | 77 | Open |
| 307 | 2020-12-01 | RBI Open Qualifier 1 2020 | lichess.org INT | 2 | 8623252 | Koustav Chatterjee | 0-1 | 25 | Open |
| 308 | 2020-12-01 | RBI Open Qualifier 1 2020 | lichess.org INT | 10 | Aleksandr Lenderman | Koustav Chatterjee | 1-0 | 27 | Open |
| 309 | 2020-06-23 | Titled Tuesday 23rd June | chess.com INT | 3 | Gellert Karacsonyi | Koustav Chatterjee | 1-0 | 15 | Open |
| 310 | 2020-06-23 | Titled Tuesday 23rd June | chess.com INT | 2 | Koustav Chatterjee | Codrut-Constantin Florescu | 1-0 | 26 | Open |
| 311 | 2020-06-23 | Titled Tuesday 23rd June | chess.com INT | 1 | Oleg Kislov | Koustav Chatterjee | 0-1 | 36 | Open |
| 312 | 2020-05-16 | Sukooon Resort Indian Chess.com | chess.com INT | 9.5 | Koustav Chatterjee | Harsha Bharathakoti | 1-0 | 29 | Open |
| 313 | 2020-05-16 | Sukooon Resort Indian Chess.com | chess.com INT | 8.2 | Aditya Mittal | Koustav Chatterjee | 1/2-1/2 | 40 | Open |
| 314 | 2020-05-16 | Sukooon Resort Indian Chess.com | chess.com INT | 7.4 | Koustav Chatterjee | Srinath Narayanan | 1/2-1/2 | 11 | Open |
| 315 | 2020-05-16 | Sukooon Resort Indian Chess.com | chess.com INT | 6.3 | Raja Rithvik R | Koustav Chatterjee | 0-1 | 62 | Open |
| 316 | 2020-05-15 | Sukooon Resort Indian Chess.com | chess.com INT | 5.3 | Koustav Chatterjee | Sankalp Gupta | 1-0 | 33 | Open |
| 317 | 2020-05-15 | Sukooon Resort Indian Chess.com | chess.com INT | 4.4 | Sachdev Tania | Koustav Chatterjee | 0-1 | 25 | Open |
| 318 | 2020-05-15 | Sukooon Resort Indian Chess.com | chess.com INT | 3.2 | Koustav Chatterjee | Vantika Agrawal | 1-0 | 29 | Open |
| 319 | 2020-05-15 | Sukooon Resort Indian Chess.com | chess.com INT | 2.5 | Leon Luke Mendonca | Koustav Chatterjee | 1/2-1/2 | 31 | Open |
| 320 | 2020-05-15 | Sukooon Resort Indian Chess.com | chess.com INT | 1.1 | Sundar M. Shyam | Koustav Chatterjee | 1-0 | 60 | Open |
| 321 | 2020-05-05 | Titled Tuesday 5th May | chess.com INT | 8 | Ori Kobo | Koustav Chatterjee | 1-0 | 29 | Open |
| 322 | 2020-05-05 | Titled Tuesday 5th May | chess.com INT | 7 | Koustav Chatterjee | Andrey Drygalov | 1-0 | 30 | Open |
| 323 | 2020-05-05 | Titled Tuesday 5th May | chess.com INT | 6 | Tomas Laurusas | Koustav Chatterjee | 1-0 | 65 | Open |
| 324 | 2020-05-05 | Titled Tuesday 5th May | chess.com INT | 5 | Koustav Chatterjee | Mikhail Kobalia | 1-0 | 66 | Open |
| 325 | 2020-05-05 | Titled Tuesday 5th May | chess.com INT | 10 | Mateusz Bartel | Koustav Chatterjee | 0-1 | 64 | Open |
| 326 | 2020-01-07 | 5th IIFL Wealth Mumbai Op | Mumbai IND | 9.12 | Aleksej Aleksandrov | Koustav Chatterjee | 1-0 | 43 | Open |
| 327 | 2020-01-06 | 5th IIFL Wealth Mumbai Op | Mumbai IND | 8.24 | Koustav Chatterjee | Pranav Anand | 1-0 | 36 | Open |
| 328 | 2020-01-05 | 5th IIFL Wealth Mumbai Op | Mumbai IND | 7.22 | Pranesh M | Koustav Chatterjee | 1/2-1/2 | 42 | Open |
| 329 | 2020-01-04 | 5th IIFL Wealth Mumbai Op | Mumbai IND | 6.24 | Krishnan P. Saravana | Koustav Chatterjee | 1/2-1/2 | 63 | Open |
| 330 | 2020-01-03 | 5th IIFL Wealth Mumbai Op | Mumbai IND | 5.2 | Koustav Chatterjee | Krishnater Kushager | 1/2-1/2 | 40 | Open |
| 331 | 2020-01-02 | 5th IIFL Wealth Mumbai Op | Mumbai IND | 4.18 | Senthil Maran K | Koustav Chatterjee | 1/2-1/2 | 40 | Open |
| 332 | 2020-01-01 | 5th IIFL Wealth Mumbai Op | Mumbai IND | 3.33 | Koustav Chatterjee | Garg Aradhya | 1-0 | 37 | Open |
| 333 | 2019-12-31 | 5th IIFL Wealth Mumbai Op | Mumbai IND | 2.36 | Pandey Srishti | Koustav Chatterjee | 1/2-1/2 | 41 | Open |
| 334 | 2019-08-17 | 22nd Olomouc GM 2019 | Olomouc CZE | 9.2 | Koustav Chatterjee | David J Eggleston | 1/2-1/2 | 16 | Open |
| 335 | 2019-08-16 | 22nd Olomouc GM 2019 | Olomouc CZE | 8.4 | Lukas Cernousek | Koustav Chatterjee | 0-1 | 34 | Open |
| 336 | 2019-08-15 | 22nd Olomouc GM 2019 | Olomouc CZE | 7.3 | Koustav Chatterjee | Jakub Pulpan | 0-1 | 41 | Open |
| 337 | 2019-08-14 | 22nd Olomouc GM 2019 | Olomouc CZE | 6.3 | Jacek Szwed | Koustav Chatterjee | 1/2-1/2 | 86 | Open |
| 338 | 2019-08-13 | 22nd Olomouc GM 2019 | Olomouc CZE | 5.4 | Koustav Chatterjee | Petter Stigar | 1-0 | 53 | Open |
| 339 | 2019-08-12 | 22nd Olomouc GM 2019 | Olomouc CZE | 4.2 | Petr Neuman | Koustav Chatterjee | 0-1 | 28 | Open |
| 340 | 2019-08-11 | 22nd Olomouc GM 2019 | Olomouc CZE | 3.5 | Koustav Chatterjee | Richard Jr. Biolek | 1/2-1/2 | 51 | Open |
| 341 | 2019-08-11 | 22nd Olomouc GM 2019 | Olomouc CZE | 2.1 | Keith C Arkell | Koustav Chatterjee | 1/2-1/2 | 15 | Open |
| 342 | 2019-08-10 | 22nd Olomouc GM 2019 | Olomouc CZE | 1.5 | Dibyendu Barua | Koustav Chatterjee | 1/2-1/2 | 14 | Open |
| 343 | 2019-08-09 | 6th Prague Summer Open | Prague CZE | 9.2 | Koustav Chatterjee | Igor Yagupov | 1/2-1/2 | 64 | Open |
| 344 | 2019-08-08 | 6th Prague Summer Open | Prague CZE | 8.3 | Sergey Domogaev | Koustav Chatterjee | 0-1 | 26 | Open |
| 345 | 2019-08-07 | 6th Prague Summer Open | Prague CZE | 7.1 | Alexandre Qashashvili | Koustav Chatterjee | 1-0 | 40 | Open |
| 346 | 2019-08-06 | 6th Prague Summer Open | Prague CZE | 6.1 | Koustav Chatterjee | Akash Thakur | 1-0 | 48 | Open |
| 347 | 2019-08-05 | 6th Prague Summer Open | Prague CZE | 5.1 | Koustav Chatterjee | Dibyendu Barua | 1/2-1/2 | 64 | Open |
| 348 | 2019-08-04 | 6th Prague Summer Open | Prague CZE | 4.2 | Daniel Sorm | Koustav Chatterjee | 0-1 | 74 | Open |
| 349 | 2019-08-04 | 6th Prague Summer Open | Prague CZE | 3.3 | Koustav Chatterjee | Lars Breivik | 1-0 | 25 | Open |
| 350 | 2019-08-03 | 6th Prague Summer Open | Prague CZE | 2.3 | Netanel Levi | Koustav Chatterjee | 0-1 | 76 | Open |
| 351 | 2019-08-02 | 6th Prague Summer Open | Prague CZE | 1.2 | Koustav Chatterjee | Jiri Vrecion | 1-0 | 31 | Open |
| 352 | 2019-07-27 | 30th Czech Open A 2019 | Pardubice CZE | 9.13 | Viktor Matviishen | Koustav Chatterjee | 1-0 | 43 | Open |
| 353 | 2019-07-26 | 30th Czech Open A 2019 | Pardubice CZE | 8.11 | Koustav Chatterjee | Evgeny Zanan | 1/2-1/2 | 48 | Open |
| 354 | 2019-07-25 | 30th Czech Open A 2019 | Pardubice CZE | 7.27 | Theo Gungl | Koustav Chatterjee | 0-1 | 71 | Open |
| 355 | 2019-07-24 | 30th Czech Open A 2019 | Pardubice CZE | 6.28 | Koustav Chatterjee | Andrii Punin | 1/2-1/2 | 50 | Open |
| 356 | 2019-07-23 | 30th Czech Open A 2019 | Pardubice CZE | 5.6 | Mikhail Demidov | Koustav Chatterjee | 1-0 | 47 | Open |
| 357 | 2019-07-22 | 30th Czech Open A 2019 | Pardubice CZE | 4.24 | Koustav Chatterjee | Simon Burian | 1-0 | 50 | Open |
| 358 | 2019-07-21 | 30th Czech Open A 2019 | Pardubice CZE | 3.17 | Peter Keller | Koustav Chatterjee | 1/2-1/2 | 47 | Open |
| 359 | 2019-07-20 | 30th Czech Open A 2019 | Pardubice CZE | 2.32 | Koustav Chatterjee | Volodymyr Meleshko | 1-0 | 33 | Open |
| 360 | 2019-07-19 | 30th Czech Open A 2019 | Pardubice CZE | 1.49 | Sagar Tejaswini | Koustav Chatterjee | 0-1 | 45 | Open |
| 361 | 2019-06-24 | 2nd Goa Open 2019 | Taleigao IND | 9.12 | Gukesh D | Koustav Chatterjee | 1-0 | 48 | Open |
| 362 | 2019-06-23 | 2nd Goa Open 2019 | Taleigao IND | 8.11 | Koustav Chatterjee | Alexandr Fier | 1/2-1/2 | 30 | Open |
| 363 | 2019-06-21 | 2nd Goa Open 2019 | Taleigao IND | 5.11 | Kirill Stupak | Koustav Chatterjee | 1-0 | 45 | Open |
| 364 | 2019-06-20 | 2nd Goa Open 2019 | Taleigao IND | 4.9 | Koustav Chatterjee | Pouya Idani | 1/2-1/2 | 29 | Open |
| 365 | 2019-06-16 | 12th Mayors Cup Open 2019 | Mumbai IND | 10.9 | Koustav Chatterjee | Ziaur Rahman | 0-1 | 51 | Open |
| 366 | 2019-06-15 | 12th Mayors Cup Open 2019 | Mumbai IND | 9.8 | Koustav Chatterjee | Davit Jojua | 1/2-1/2 | 30 | Open |
| 367 | 2019-06-14 | 12th Mayors Cup Open 2019 | Mumbai IND | 8.15 | A. Balkishan | Koustav Chatterjee | 0-1 | 82 | Open |
| 368 | 2019-06-13 | 12th Mayors Cup Open 2019 | Mumbai IND | 7.1 | Vladimir Burmakin | Koustav Chatterjee | 1/2-1/2 | 35 | Open |
| 369 | 2019-06-12 | 12th Mayors Cup Open 2019 | Mumbai IND | 6.7 | Koustav Chatterjee | Maxim Turov | 1/2-1/2 | 31 | Open |
| 370 | 2019-06-12 | 12th Mayors Cup Open 2019 | Mumbai IND | 5.1 | Koustav Chatterjee | Adam Tukhaev | 1/2-1/2 | 33 | Open |
| 371 | 2019-06-11 | 12th Mayors Cup Open 2019 | Mumbai IND | 4.1 | Mikheil Mchedlishvili | Koustav Chatterjee | 0-1 | 32 | Open |
| 372 | 2019-06-10 | 12th Mayors Cup Open 2019 | Mumbai IND | 3.3 | Koustav Chatterjee | Samvel Ter-Sahakyan | 1/2-1/2 | 45 | Open |
| 373 | 2019-06-07 | 12th KIIT Cat A Open 2019 | Bhubaneswar IND | 10.8 | R.R. Laxman | Koustav Chatterjee | 1/2-1/2 | 10 | Open |
| 374 | 2019-06-06 | 12th KIIT Cat A Open 2019 | Bhubaneswar IND | 9.1 | Koustav Chatterjee | Petr Kostenko | 1/2-1/2 | 42 | Open |
| 375 | 2019-06-05 | 12th KIIT Cat A Open 2019 | Bhubaneswar IND | 8.4 | Rodrigo Vasquez Schroeder | Koustav Chatterjee | 1/2-1/2 | 27 | Open |
| 376 | 2019-06-04 | 12th KIIT Cat A Open 2019 | Bhubaneswar IND | 7.4 | Koustav Chatterjee | Valeriy Neverov | 1/2-1/2 | 32 | Open |
| 377 | 2019-06-04 | 12th KIIT Cat A Open 2019 | Bhubaneswar IND | 6.12 | Saha Suvrajit | Koustav Chatterjee | 0-1 | 39 | Open |
| 378 | 2019-06-03 | 12th KIIT Cat A Open 2019 | Bhubaneswar IND | 5.4 | Koustav Chatterjee | Vladimir Burmakin | 1/2-1/2 | 26 | Open |
| 379 | 2019-06-02 | 12th KIIT Cat A Open 2019 | Bhubaneswar IND | 4.1 | Eduardo Iturrizaga Bonelli | Koustav Chatterjee | 1/2-1/2 | 36 | Open |
| 380 | 2019-06-02 | 12th KIIT Cat A Open 2019 | Bhubaneswar IND | 3.14 | Koustav Chatterjee | Rathneesh R | 1-0 | 29 | Open |
| 381 | 2019-02-27 | Aeroflot Open B 2019 | Moscow RUS | 9.33 | Saidakbar Saydaliev | Koustav Chatterjee | 1/2-1/2 | 16 | Open |
| 382 | 2019-02-26 | Aeroflot Open B 2019 | Moscow RUS | 8.2 | Koustav Chatterjee | Hovik Hayrapetyan | 0-1 | 54 | Open |
| 383 | 2019-02-25 | Aeroflot Open B 2019 | Moscow RUS | 7.14 | Dmitry Bocharov | Koustav Chatterjee | 1-0 | 33 | Open |
| 384 | 2019-02-24 | Aeroflot Open B 2019 | Moscow RUS | 6.11 | Koustav Chatterjee | Artur Gaifullin | 1/2-1/2 | 61 | Open |
| 385 | 2019-02-24 | Aeroflot Open B 2019 | Moscow RUS | 5.9 | Eldar Gasanov | Koustav Chatterjee | 1/2-1/2 | 21 | Open |
| 386 | 2019-02-23 | Aeroflot Open B 2019 | Moscow RUS | 4.1 | Koustav Chatterjee | Dmitry Lavrik | 1/2-1/2 | 41 | Open |
| 387 | 2019-02-22 | Aeroflot Open B 2019 | Moscow RUS | 3.7 | Di Li | Koustav Chatterjee | 1/2-1/2 | 39 | Open |
| 388 | 2019-02-21 | Aeroflot Open B 2019 | Moscow RUS | 2.9 | Koustav Chatterjee | Bogdan Belyakov | 1-0 | 60 | Open |
| 389 | 2019-02-20 | Aeroflot Open B 2019 | Moscow RUS | 1.16 | Vladimir Hamitevici | Koustav Chatterjee | 0-1 | 33 | Open |
| 390 | 2019-01-16 | 17th Delhi Open 2019 | New Delhi IND | 10.26 | Koustav Chatterjee | Sarvinoz Kurbonboeva | 1/2-1/2 | 60 | Open |
| 391 | 2019-01-15 | 17th Delhi Open 2019 | New Delhi IND | 9.16 | Aleksej Aleksandrov | Koustav Chatterjee | 1/2-1/2 | 40 | Open |
| 392 | 2019-01-10 | 17th Delhi Open 2019 | New Delhi IND | 3.8 | Erigaisi Arjun | Koustav Chatterjee | 1-0 | 37 | Open |
| 393 | 2018-12-01 | World Youth U16 Olympiad | Konya TUR | 8.3 | Koustav Chatterjee | Govhar Beydullayeva | 1-0 | 28 | Open |
| 394 | 2018-11-30 | World Youth U16 Olympiad | Konya TUR | 7.4 | Koustav Chatterjee | Volodar Murzin | 0-1 | 55 | Open |
| 395 | 2018-11-30 | World Youth U16 Olympiad | Konya TUR | 6.3 | Shamsiddin Vokhidov | Koustav Chatterjee | 1-0 | 67 | Open |
| 396 | 2018-11-28 | World Youth U16 Olympiad | Konya TUR | 5.3 | Mamikon Gharibyan | Koustav Chatterjee | 0-1 | 31 | Open |
| 397 | 2018-11-26 | World Youth U16 Olympiad | Konya TUR | 3.2 | Koustav Chatterjee | Mariia Berdnyk | 1/2-1/2 | 62 | Open |
| 398 | 2018-11-26 | World Youth U16 Olympiad | Konya TUR | 2.6 | Yanki Kara | Koustav Chatterjee | 1/2-1/2 | 48 | Open |
| 399 | 2018-11-25 | World Youth U16 Olympiad | Konya TUR | 1.3 | Koustav Chatterjee | Nejc Amon | 1-0 | 37 | Open |
| 400 | 2018-10-30 | World Youth Open U16 2018 | Porto Carras GRE | 11.6 | Koustav Chatterjee | David Gavrilescu | 0-1 | 35 | Open |
| 401 | 2018-10-29 | World Youth Open U16 2018 | Porto Carras GRE | 10.11 | Liam Vrolijk | Koustav Chatterjee | 1/2-1/2 | 90 | Open |
| 402 | 2018-10-28 | World Youth Open U16 2018 | Porto Carras GRE | 9.1 | Koustav Chatterjee | Tigran R. Sargsyan | 1/2-1/2 | 56 | Open |
| 403 | 2018-10-27 | World Youth Open U16 2018 | Porto Carras GRE | 8.13 | Hongchi Peng | Koustav Chatterjee | 0-1 | 54 | Open |
| 404 | 2018-10-26 | World Youth Open U16 2018 | Porto Carras GRE | 7.2 | Koustav Chatterjee | Kayra Kamer | 1-0 | 43 | Open |
| 405 | 2018-10-24 | World Youth Open U16 2018 | Porto Carras GRE | 6.3 | Vincent Lou | Koustav Chatterjee | 0-1 | 53 | Open |
| 406 | 2018-10-23 | World Youth Open U16 2018 | Porto Carras GRE | 5.28 | Koustav Chatterjee | Dante M Beukes | 1/2-1/2 | 49 | Open |
| 407 | 2018-10-22 | World Youth Open U16 2018 | Porto Carras GRE | 4.19 | Leonardo Loiacono | Koustav Chatterjee | 1-0 | 92 | Open |
| 408 | 2018-10-21 | World Youth Open U16 2018 | Porto Carras GRE | 3.5 | Koustav Chatterjee | Shant Sargsyan | 0-1 | 46 | Open |
| 409 | 2018-10-21 | World Youth Open U16 2018 | Porto Carras GRE | 2.22 | Karolis Juksta | Koustav Chatterjee | 0-1 | 37 | Open |
| 410 | 2018-10-20 | World Youth Open U16 2018 | Porto Carras GRE | 1.3 | Koustav Chatterjee | Tomas Alberto Pena Cifuentes | 1-0 | 34 | Open |
| 411 | 2018-08-15 | 25th Abu Dhabi Masters | Abu Dhabi UAE | 9.3 | Lalit Babu M R | Koustav Chatterjee | 1-0 | 21 | Open |
| 412 | 2018-08-14 | 25th Abu Dhabi Masters | Abu Dhabi UAE | 8.29 | Koustav Chatterjee | Gunay Mammadzada | 1/2-1/2 | 66 | Open |
| 413 | 2018-08-13 | 25th Abu Dhabi Masters | Abu Dhabi UAE | 7.39 | Koustav Chatterjee | Junta Ikeda | 1-0 | 36 | Open |
| 414 | 2018-08-12 | 25th Abu Dhabi Masters | Abu Dhabi UAE | 6.55 | Gajwa Ankit | Koustav Chatterjee | 0-1 | 64 | Open |
| 415 | 2018-08-11 | 25th Abu Dhabi Masters | Abu Dhabi UAE | 5.57 | Koustav Chatterjee | K Priyanka | 1/2-1/2 | 69 | Open |
| 416 | 2018-08-11 | 25th Abu Dhabi Masters | Abu Dhabi UAE | 4.35 | Abhimanyu Puranik | Koustav Chatterjee | 1-0 | 32 | Open |
| 417 | 2018-08-09 | 25th Abu Dhabi Masters | Abu Dhabi UAE | 3.58 | Koustav Chatterjee | Samant Aditya S | 1-0 | 57 | Open |
| 418 | 2018-08-08 | 25th Abu Dhabi Masters | Abu Dhabi UAE | 2.38 | Tigran L. Petrosian | Koustav Chatterjee | 1-0 | 42 | Open |
| 419 | 2018-08-07 | 25th Abu Dhabi Masters | Abu Dhabi UAE | 1.9 | Koustav Chatterjee | Sanan Sjugirov | 1/2-1/2 | 43 | Open |
| 420 | 2018-07-03 | ch-Commonwealth 2018 | New Delhi IND | 9.15 | Isuru Alahakoon | Koustav Chatterjee | 1-0 | 42 | Open |
| 421 | 2018-07-02 | ch-Commonwealth 2018 | New Delhi IND | 8.6 | Koustav Chatterjee | Deepan Chakkravarthy J. | 0-1 | 30 | Open |
| 422 | 2018-07-01 | ch-Commonwealth 2018 | New Delhi IND | 7.16 | Shantanu Bhambure | Koustav Chatterjee | 0-1 | 54 | Open |
| 423 | 2018-06-30 | ch-Commonwealth 2018 | New Delhi IND | 6.24 | Koustav Chatterjee | Arun Rathee | 1-0 | 48 | Open |
| 424 | 2018-06-29 | ch-Commonwealth 2018 | New Delhi IND | 4.18 | Koustav Chatterjee | Bala Kannamma P | 0-1 | 56 | Open |
| 425 | 2018-06-28 | ch-Commonwealth 2018 | New Delhi IND | 3.5 | Das Debashis | Koustav Chatterjee | 1-0 | 39 | Open |
| 426 | 2018-06-27 | ch-Commonwealth 2018 | New Delhi IND | 2.21 | Koustav Chatterjee | Polakhare Aryan | 1-0 | 55 | Open |
| 427 | 2018-06-26 | ch-Commonwealth 2018 | New Delhi IND | 1.23 | Adarsh Tripathi | Koustav Chatterjee | 0-1 | 28 | Open |
| 428 | 2018-05-28 | 11th KIIT Elite Open 2018 | Bhubaneswar IND | 6.6 | Sandipan Chanda | Koustav Chatterjee | 1-0 | 41 | Open |
| 429 | 2018-05-28 | 11th KIIT Elite Open 2018 | Bhubaneswar IND | 5.8 | Koustav Chatterjee | Vignesh N R | 1/2-1/2 | 31 | Open |
| 430 | 2018-05-18 | 3rd Kolkata GM Open 2018 | Kolkata IND | 5.13 | Koustav Chatterjee | Tuan Minh Tran | 0-1 | 53 | Open |
| 431 | 2018-05-17 | 3rd Kolkata GM Open 2018 | Kolkata IND | 4.12 | Sundar M. Shyam | Koustav Chatterjee | 1/2-1/2 | 30 | Open |
| 432 | 2018-05-16 | 3rd Kolkata GM Open 2018 | Kolkata IND | 3.6 | Koustav Chatterjee | Vladimir Burmakin | 1/2-1/2 | 30 | Open |
| 433 | 2018-01-16 | 16th Delhi Open 2018 | New Delhi IND | 10.8 | Koustav Chatterjee | Adam Tukhaev | 0-1 | 33 | Open |
| 434 | 2018-01-15 | 16th Delhi Open 2018 | New Delhi IND | 9.5 | Deep Sengupta | Koustav Chatterjee | 1/2-1/2 | 56 | Open |
| 435 | 2018-01-14 | 16th Delhi Open 2018 | New Delhi IND | 8.9 | Koustav Chatterjee | Roeland Pruijssers | 1/2-1/2 | 18 | Open |
| 436 | 2018-01-13 | 16th Delhi Open 2018 | New Delhi IND | 7.14 | Himal Gusain | Koustav Chatterjee | 0-1 | 45 | Open |
| 437 | 2018-01-12 | 16th Delhi Open 2018 | New Delhi IND | 5.9 | Alberto David | Koustav Chatterjee | 1-0 | 35 | Open |
| 438 | 2018-01-10 | 16th Delhi Open 2018 | New Delhi IND | 3.14 | Koustav Chatterjee | P. Karthikeyan | 1/2-1/2 | 24 | Open |
| 439 | 2018-01-07 | 3rd IIFL Wealth Mumbai Op | Mumbai IND | 9.35 | Koustav Chatterjee | Bala Kannamma P | 1/2-1/2 | 44 | Open |
| 440 | 2018-01-06 | 3rd IIFL Wealth Mumbai Op | Mumbai IND | 8.14 | Ziaur Rahman | Koustav Chatterjee | 1-0 | 75 | Open |
| 441 | 2018-01-05 | 3rd IIFL Wealth Mumbai Op | Mumbai IND | 7.34 | Koustav Chatterjee | Akila Kavinda | 1-0 | 40 | Open |
| 442 | 2018-01-04 | 3rd IIFL Wealth Mumbai Op | Mumbai IND | 6.1 | Duc Hoa Nguyen | Koustav Chatterjee | 1-0 | 50 | Open |
| 443 | 2018-01-03 | 3rd IIFL Wealth Mumbai Op | Mumbai IND | 5.33 | Koustav Chatterjee | Prraneeth Vuppala | 1-0 | 26 | Open |
| 444 | 2018-01-02 | 3rd IIFL Wealth Mumbai Op | Mumbai IND | 4.26 | Bommini Mounika Akshaya | Koustav Chatterjee | 0-1 | 48 | Open |
| 445 | 2018-01-01 | 3rd IIFL Wealth Mumbai Op | Mumbai IND | 3.67 | Koustav Chatterjee | Mohith R | 1-0 | 35 | Open |
| 446 | 2017-12-31 | 3rd IIFL Wealth Mumbai Op | Mumbai IND | 2.4 | Alberto David | Koustav Chatterjee | 1-0 | 39 | Open |
| 447 | 2017-12-30 | 3rd IIFL Wealth Mumbai Op | Mumbai IND | 1.52 | Koustav Chatterjee | Inani Darpan | 1-0 | 0 | Open |
| 448 | 2017-09-26 | World Youth Open U14 2017 | Montevideo URU | 11.6 | Arseniy Nesterov | Koustav Chatterjee | 1-0 | 49 | Open |
| 449 | 2017-09-25 | World Youth Open U14 2017 | Montevideo URU | 10.3 | Koustav Chatterjee | Erigaisi Arjun | 0-1 | 38 | Open |
| 450 | 2017-09-24 | World Youth Open U14 2017 | Montevideo URU | 9.2 | Pawel Teclaf | Koustav Chatterjee | 1-0 | 36 | Open |
| 451 | 2017-09-23 | World Youth Open U14 2017 | Montevideo URU | 8.1 | Koustav Chatterjee | Dambasuren Batsuren | 1/2-1/2 | 51 | Open |
| 452 | 2017-09-22 | World Youth Open U14 2017 | Montevideo URU | 7.2 | Daniel Kopylov | Koustav Chatterjee | 0-1 | 36 | Open |
| 453 | 2017-09-22 | World Youth Open U14 2017 | Montevideo URU | 6.4 | Koustav Chatterjee | Aydin Turgut | 1-0 | 45 | Open |
| 454 | 2017-09-20 | World Youth Open U14 2017 | Montevideo URU | 5.4 | Steven Rojas Salas | Koustav Chatterjee | 0-1 | 48 | Open |
| 455 | 2017-09-19 | World Youth Open U14 2017 | Montevideo URU | 4.12 | Koustav Chatterjee | Facundo Vazquez | 1-0 | 66 | Open |
| 456 | 2017-09-18 | World Youth Open U14 2017 | Montevideo URU | 3.9 | Alexander Costello | Koustav Chatterjee | 1-0 | 26 | Open |
| 457 | 2017-09-18 | World Youth Open U14 2017 | Montevideo URU | 2.11 | Koustav Chatterjee | Tomas Ojeda Venegas | 1-0 | 36 | Open |
| 458 | 2017-09-17 | World Youth Open U14 2017 | Montevideo URU | 1.14 | Paulo Leonardo Jodorcovsky | Koustav Chatterjee | 0-1 | 36 | Open |
| 459 | 2017-08-20 | 55th ch-IND Challengers | Ahmedabad IND | 10.7 | Koustav Chatterjee | Deepan Chakkravarthy J. | 0-1 | 40 | Open |
| 460 | 2017-08-19 | 55th ch-IND Challengers | Ahmedabad IND | 9.6 | S. Nitin | Koustav Chatterjee | 1/2-1/2 | 21 | Open |
| 461 | 2017-01-12 | 15th Delhi Open 2017 | New Delhi IND | 5.16 | Koustav Chatterjee | Adam Horvath | 0-1 | 44 | Open |
| 462 | 2017-01-11 | 15th Delhi Open 2017 | New Delhi IND | 4.16 | M.R. Venkatesh | Koustav Chatterjee | 1/2-1/2 | 23 | Open |
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