Mark Van der Werf
Country
NED
Birth Year
1968
Gender
M
Title
International Master
FIDE ID
1000470
FIDE Rating
2386
FIDE Rating Graph
Games
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025-11-22 | Dutch League 2025-26 | Netherlands NED | 4.4 | Peter Lombaers | Mark Van der Werf | 1-0 | 43 | Open |
| 2 | 2025-11-01 | 33rd World Senior 50+ | Gallipoli ITA | 11.8 | Mark Van der Werf | Vladimir Bugayev | 0-1 | 32 | Open |
| 3 | 2025-10-31 | 33rd World Senior 50+ | Gallipoli ITA | 10.9 | Ali Farahat | Mark Van der Werf | 1/2-1/2 | 77 | Open |
| 4 | 2025-10-30 | 33rd World Senior 50+ | Gallipoli ITA | 9.9 | Mark Van der Werf | Josep Anton Lacasa Diaz | 1/2-1/2 | 12 | Open |
| 5 | 2025-10-29 | 33rd World Senior 50+ | Gallipoli ITA | 8.6 | Martin Martens | Mark Van der Werf | 1/2-1/2 | 15 | Open |
| 6 | 2025-10-28 | 33rd World Senior 50+ | Gallipoli ITA | 7.3 | Mark Van der Werf | Kiril Georgiev | 1/2-1/2 | 85 | Open |
| 7 | 2025-10-26 | 33rd World Senior 50+ | Gallipoli ITA | 6.1 | Mark Van der Werf | Antonio Bravetti | 1-0 | 24 | Open |
| 8 | 2025-10-25 | 33rd World Senior 50+ | Gallipoli ITA | 5.11 | Raoul Van Ketel | Mark Van der Werf | 1/2-1/2 | 41 | Open |
| 9 | 2025-10-24 | 33rd World Senior 50+ | Gallipoli ITA | 4.9 | Mark Van der Werf | Alexander Betaneli | 1/2-1/2 | 58 | Open |
| 10 | 2025-10-23 | 33rd World Senior 50+ | Gallipoli ITA | 3.6 | Josef Obsivac | Mark Van der Werf | 1/2-1/2 | 20 | Open |
| 11 | 2025-10-22 | 33rd World Senior 50+ | Gallipoli ITA | 2.1 | Mark Van der Werf | Thorsten Cmiel | 1-0 | 16 | Open |
| 12 | 2025-10-21 | 33rd World Senior 50+ | Gallipoli ITA | 1.13 | Yuriy V Isaev | Mark Van der Werf | 0-1 | 52 | Open |
| 13 | 2025-10-05 | 23rd ch-Euro Seniors +50 | Rabac CRO | 9.3 | Mark Van der Werf | Josep Oms Pallisse | 1/2-1/2 | 74 | Open |
| 14 | 2025-10-04 | 23rd ch-Euro Seniors +50 | Rabac CRO | 8.2 | Frank Holzke | Mark Van der Werf | 1/2-1/2 | 53 | Open |
| 15 | 2025-10-03 | 23rd ch-Euro Seniors +50 | Rabac CRO | 7.3 | Mark Van der Werf | Throstur Thorhallsson | 1/2-1/2 | 18 | Open |
| 16 | 2025-10-02 | 23rd ch-Euro Seniors +50 | Rabac CRO | 6.2 | Mark Van der Werf | Christof Sielecki | 1/2-1/2 | 18 | Open |
| 17 | 2025-10-01 | 23rd ch-Euro Seniors +50 | Rabac CRO | 5.2 | Nenad Fercec | Mark Van der Werf | 1/2-1/2 | 42 | Open |
| 18 | 2025-09-30 | 23rd ch-Euro Seniors +50 | Rabac CRO | 4.1 | Mark Van der Werf | Jean-Marc Degraeve | 1/2-1/2 | 16 | Open |
| 19 | 2025-09-29 | 23rd ch-Euro Seniors +50 | Rabac CRO | 3.3 | Thorsten Cmiel | Mark Van der Werf | 0-1 | 36 | Open |
| 20 | 2025-09-28 | 23rd ch-Euro Seniors +50 | Rabac CRO | 2.6 | Mark Van der Werf | Neil Farrell | 1-0 | 38 | Open |
| 21 | 2025-09-27 | 23rd ch-Euro Seniors +50 | Rabac CRO | 1.8 | Alan Minnican | Mark Van der Werf | 0-1 | 37 | Open |
| 22 | 2025-09-20 | Dutch League 2025-26 | Netherlands NED | 1.5 | Mark Van der Werf | Iwo Godzwon | 1-0 | 30 | Open |
| 23 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 4 | Glennen Artuz | Mark Van der Werf | 1-0 | 37 | Open |
| 24 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 3 | Mohammad Mahdi Alizadeh | Mark Van der Werf | 1-0 | 45 | Open |
| 25 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 2 | Mark Van der Werf | Krikor Sevag Mekhitarian | 0-1 | 51 | Open |
| 26 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 1 | Mark Van der Werf | Stanislav Bukreev | 1-0 | 37 | Open |
| 27 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 9 | Mark Van der Werf | Oleksandr Zhukovskyi | 0-1 | 41 | Open |
| 28 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 8 | Viacheslav Tikhonov | Mark Van der Werf | 1/2-1/2 | 123 | Open |
| 29 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 7 | Mark Van der Werf | Alejandro Cuellar Montes | 1/2-1/2 | 32 | Open |
| 30 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 6 | Mark Van der Werf | Guillermo Baches Garcia | 0-1 | 23 | Open |
| 31 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 5 | Logman Guliev | Mark Van der Werf | 0-1 | 31 | Open |
| 32 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 4 | Nick Raptis | Mark Van der Werf | 1-0 | 9 | Open |
| 33 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 3 | Mark Van der Werf | Jack Mizzi | 1-0 | 28 | Open |
| 34 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 2 | Pavel Skatchkov | Mark Van der Werf | 1-0 | 32 | Open |
| 35 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 1 | Mark Van der Werf | Saidakbar Saydaliev | 1/2-1/2 | 87 | Open |
| 36 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 11 | Mark Van der Werf | Sadig Mammadov | 0-1 | 50 | Open |
| 37 | 2025-07-15 | Titled Tue 15th Jul Late | chess.com INT | 10 | Joaquin Ignacio Miranda Camus | Mark Van der Werf | 0-1 | 21 | Open |
| 38 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 8 | Mark Van der Werf | Henrik Cernov | 0-1 | 53 | Open |
| 39 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 7 | Mark Van der Werf | Abigail Zhou | 1-0 | 53 | Open |
| 40 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 6 | Dmitry Zilberstein | Mark Van der Werf | 1-0 | 45 | Open |
| 41 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 5 | Mark Van der Werf | Roshan Sethuraman | 0-1 | 69 | Open |
| 42 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 4 | Nicholas Ladan | Mark Van der Werf | 0-1 | 46 | Open |
| 43 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 3 | Wiktor Golis | Mark Van der Werf | 1-0 | 40 | Open |
| 44 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 2 | Mark Van der Werf | Niklas Schmider | 1-0 | 37 | Open |
| 45 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 1 | Itay Sitbon | Mark Van der Werf | 1-0 | 58 | Open |
| 46 | 2025-06-03 | Titled Tue 3rd Jan Late | chess.com INT | 8 | Eyal Noy | Mark Van der Werf | 0-1 | 25 | Open |
| 47 | 2025-06-03 | Titled Tue 3rd Jan Late | chess.com INT | 7 | Mark Van der Werf | Rogerio Paulo Muller Fernandes | 0-1 | 18 | Open |
| 48 | 2025-06-03 | Titled Tue 3rd Jan Late | chess.com INT | 6 | Eduardo Cesar Da Matta | Mark Van der Werf | 1/2-1/2 | 57 | Open |
| 49 | 2025-05-29 | TCh-NED Cup 2025 | Oosterhout NED | 2.3 | Mark Van der Werf | Peter Lombaers | 1/2-1/2 | 29 | Open |
| 50 | 2025-05-29 | TCh-NED Cup TB 2025 | Oosterhout NED | 1.3 | Chenwu Zhu | Mark Van der Werf | 1/2-1/2 | 14 | Open |
| 51 | 2025-05-29 | TCh-NED Cup 2025 | Oosterhout NED | 1.3 | Mark Van der Werf | Chenwu Zhu | 0-1 | 36 | Open |
| 52 | 2025-05-10 | Dutch League 2024-25 | Netherlands NED | 9.3 | Sybolt Strating | Mark Van der Werf | 1/2-1/2 | 72 | Open |
| 53 | 2025-04-05 | Dutch League 2024-25 | Netherlands NED | 8.3 | Mark Van der Werf | Siem Van Dael | 1-0 | 59 | Open |
| 54 | 2025-03-08 | Dutch League 2024-25 | Netherlands NED | 7.5 | Leandro Slagboom | Mark Van der Werf | 1-0 | 41 | Open |
| 55 | 2025-02-25 | World Senior Teams +50 | Prague CZE | 8.1 | Mark Van der Werf | Victor Plotkin | 1/2-1/2 | 54 | Open |
| 56 | 2025-02-24 | World Senior Teams +50 | Prague CZE | 7.1 | Mark Van der Werf | Johann Hjartarson | 0-1 | 40 | Open |
| 57 | 2025-02-23 | World Senior Teams +50 | Prague CZE | 6.1 | Douglas M Bryson | Mark Van der Werf | 1-0 | 47 | Open |
| 58 | 2025-02-21 | World Senior Teams +50 | Prague CZE | 5.1 | Mark Van der Werf | Pierre Olivier | 1-0 | 39 | Open |
| 59 | 2025-02-19 | World Senior Teams +50 | Prague CZE | 3.1 | Tomas Polak | Mark Van der Werf | 1-0 | 28 | Open |
| 60 | 2025-02-08 | Dutch League 2024-25 | Netherlands NED | 6.7 | Vitaly Kunin | Mark Van der Werf | 1-0 | 72 | Open |
| 61 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 8 | Francisco Rubio Tent | Mark Van der Werf | 0-1 | 24 | Open |
| 62 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 7 | Mark Van der Werf | Sebastian Felipe Sanchez | 0-1 | 54 | Open |
| 63 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 6 | Mark Van der Werf | Dawid Janaszak | 0-1 | 37 | Open |
| 64 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 5 | Mohamed Haddouche | Mark Van der Werf | 1-0 | 36 | Open |
| 65 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 4 | Mark Van der Werf | Mikhail Bryakin | 0-1 | 43 | Open |
| 66 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 3 | Mark Van der Werf | Alfonso Llorente Zaro | 1-0 | 50 | Open |
| 67 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 2 | Lennis Martinez Ramirez | Mark Van der Werf | 0-1 | 24 | Open |
| 68 | 2025-02-04 | Titled Tue 4th Feb Late | chess.com INT | 1 | Varun Krishnan | Mark Van der Werf | 0-1 | 29 | Open |
| 69 | 2024-12-14 | Dutch League 2024-25 | Netherlands NED | 5.6 | Christophe Sochacki | Mark Van der Werf | 1/2-1/2 | 75 | Open |
| 70 | 2024-11-23 | Dutch League 2024-25 | Netherlands NED | 4.2 | Mark Van der Werf | Stefan Beukema | 1/2-1/2 | 14 | Open |
| 71 | 2024-11-19 | Titled Tue 19th Nov Early | chess.com INT | 5 | Mark Van der Werf | Jose Gonzalez Garcia | 1-0 | 47 | Open |
| 72 | 2024-11-19 | Titled Tue 19th Nov Early | chess.com INT | 4 | Dion Krivenko | Mark Van der Werf | 1/2-1/2 | 41 | Open |
| 73 | 2024-11-19 | Titled Tue 19th Nov Early | chess.com INT | 3 | Mark Van der Werf | Savitha Shri B | 1-0 | 32 | Open |
| 74 | 2024-11-19 | Titled Tue 19th Nov Early | chess.com INT | 2 | Mark Van der Werf | Matt Zavortink | 1/2-1/2 | 70 | Open |
| 75 | 2024-11-19 | Titled Tue 19th Nov Early | chess.com INT | 1 | Daniel Barria Zuniga | Mark Van der Werf | 1-0 | 42 | Open |
| 76 | 2024-11-09 | Dutch League 2024-25 | Netherlands NED | 3.9 | Mark Van der Werf | Servaas Dhooge | 1-0 | 34 | Open |
| 77 | 2024-10-12 | Dutch League 2024-25 | Netherlands NED | 2.1 | Mark Van der Werf | Kambiz Sekandar | 1-0 | 36 | Open |
| 78 | 2024-09-21 | Dutch League 2024-25 | Netherlands NED | 1.2 | Merijn Van Delft | Mark Van der Werf | 0-1 | 89 | Open |
| 79 | 2024-09-15 | 28th Hotel Adriatico 2024 | Montesilvano ITA | 9.3 | Mark Van der Werf | Yanis Warnier | 1-0 | 32 | Open |
| 80 | 2024-09-14 | 28th Hotel Adriatico 2024 | Montesilvano ITA | 8.1 | Zhiulien Oleksii Kalosha | Mark Van der Werf | 1/2-1/2 | 47 | Open |
| 81 | 2024-09-13 | 28th Hotel Adriatico 2024 | Montesilvano ITA | 7.3 | Mark Van der Werf | Luis Soares | 1/2-1/2 | 71 | Open |
| 82 | 2024-09-12 | 28th Hotel Adriatico 2024 | Montesilvano ITA | 6.1 | Kostya Kavutskiy | Mark Van der Werf | 1/2-1/2 | 41 | Open |
| 83 | 2024-09-11 | 28th Hotel Adriatico 2024 | Montesilvano ITA | 5.1 | Mark Van der Werf | Daniel Alsina Leal | 1/2-1/2 | 44 | Open |
| 84 | 2024-09-11 | 28th Hotel Adriatico 2024 | Montesilvano ITA | 4.2 | Mark Van der Werf | Valerio Carnicelli | 1-0 | 46 | Open |
| 85 | 2024-09-10 | 28th Hotel Adriatico 2024 | Montesilvano ITA | 3.1 | Blazimir Kovacevic | Mark Van der Werf | 1-0 | 53 | Open |
| 86 | 2024-09-09 | 28th Hotel Adriatico 2024 | Montesilvano ITA | 2.2 | Mark Van der Werf | Stefan Djuric | 1-0 | 42 | Open |
| 87 | 2024-09-08 | 28th Hotel Adriatico 2024 | Montesilvano ITA | 1.3 | Ivan Kukushkin | Mark Van der Werf | 0-1 | 47 | Open |
| 88 | 2024-09-03 | Titled Tue 3rd Sep Late | chess.com INT | 4 | Mike Sailer | Mark Van der Werf | 0-1 | 47 | Open |
| 89 | 2024-09-03 | Titled Tue 3rd Sep Late | chess.com INT | 3 | Mark Van der Werf | Jose Fernando Cuenca Jimenez | 0-1 | 55 | Open |
| 90 | 2024-09-03 | Titled Tue 3rd Sep Late | chess.com INT | 2 | Barnabas Kovacsy | Mark Van der Werf | 1-0 | 48 | Open |
| 91 | 2024-09-03 | Titled Tue 3rd Sep Late | chess.com INT | 1 | Tom O`Gorman | Mark Van der Werf | 1-0 | 30 | Open |
| 92 | 2024-08-20 | Titled Tue 20th Aug Late | chess.com INT | 8 | Kevin George | Mark Van der Werf | 1-0 | 55 | Open |
| 93 | 2024-08-20 | Titled Tue 20th Aug Late | chess.com INT | 7 | Mark Van der Werf | Jude Shearsby | 1/2-1/2 | 30 | Open |
| 94 | 2024-08-20 | Titled Tue 20th Aug Late | chess.com INT | 6 | Wojciech Przybylski | Mark Van der Werf | 1-0 | 45 | Open |
| 95 | 2024-08-20 | Titled Tue 20th Aug Late | chess.com INT | 5 | Yessica Yissel Mendez Tovar | Mark Van der Werf | 0-1 | 26 | Open |
| 96 | 2024-08-20 | Titled Tue 20th Aug Late | chess.com INT | 4 | Mark Van der Werf | Atousa Pourkashiyan | 0-1 | 76 | Open |
| 97 | 2024-08-20 | Titled Tue 20th Aug Late | chess.com INT | 3 | Mark Van der Werf | Flavio Rodrigo Costa Bezerra | 1-0 | 22 | Open |
| 98 | 2024-08-20 | Titled Tue 20th Aug Late | chess.com INT | 2 | Ege Koksal | Mark Van der Werf | 1-0 | 52 | Open |
| 99 | 2024-08-20 | Titled Tue 20th Aug Late | chess.com INT | 1 | Mark Van der Werf | Jeevan Karamsetty | 0-1 | 55 | Open |
| 100 | 2024-05-15 | TCh-EUR Senior +50 2024 | Catez SLO | 9.2 | Mark Van der Werf | Michele Godena | 1/2-1/2 | 23 | Open |
| 101 | 2024-05-14 | TCh-EUR Senior +50 2024 | Catez SLO | 8.2 | Chris R Beaumont | Mark Van der Werf | 0-1 | 60 | Open |
| 102 | 2024-05-13 | TCh-EUR Senior +50 2024 | Catez SLO | 7.2 | Boro Miljanic | Mark Van der Werf | 1/2-1/2 | 24 | Open |
| 103 | 2024-05-12 | TCh-EUR Senior +50 2024 | Catez SLO | 6.2 | Mark Van der Werf | Adolf Denk | 1-0 | 43 | Open |
| 104 | 2024-05-11 | TCh-EUR Senior +50 2024 | Catez SLO | 5.2 | Oliver A Jackson | Mark Van der Werf | 1/2-1/2 | 31 | Open |
| 105 | 2024-05-10 | TCh-EUR Senior +50 2024 | Catez SLO | 4.2 | Mark Van der Werf | Glenn C Flear | 1/2-1/2 | 29 | Open |
| 106 | 2024-05-09 | TCh-EUR Senior +50 2024 | Catez SLO | 3.2 | Mark Van der Werf | Luc Zimmermann | 1-0 | 65 | Open |
| 107 | 2024-05-08 | TCh-EUR Senior +50 2024 | Catez SLO | 2.2 | Zoltan Varga | Mark Van der Werf | 1/2-1/2 | 28 | Open |
| 108 | 2024-04-20 | Dutch League 2023-24 | Netherlands NED | 9.7 | Mark Van der Werf | Steven Geirnaert | 1-0 | 39 | Open |
| 109 | 2024-04-02 | Titled Tue 2nd Apr Late | chess.com INT | 9 | Mark Van der Werf | Mohammadhossein Shamsi | 0-1 | 45 | Open |
| 110 | 2024-04-02 | Titled Tue 2nd Apr Late | chess.com INT | 8 | Yichen Han | Mark Van der Werf | 1-0 | 33 | Open |
| 111 | 2024-04-02 | Titled Tue 2nd Apr Late | chess.com INT | 7 | Mark Van der Werf | Dariusz Dziewonski | 0-1 | 48 | Open |
| 112 | 2024-04-02 | Titled Tue 2nd Apr Late | chess.com INT | 6 | Mark Van der Werf | Jesus Martin Duque | 1-0 | 64 | Open |
| 113 | 2024-04-02 | Titled Tue 2nd Apr Late | chess.com INT | 5 | Vladimir Goncharov | Mark Van der Werf | 1-0 | 47 | Open |
| 114 | 2024-04-02 | Titled Tue 2nd Apr Late | chess.com INT | 4 | Mark Van der Werf | Danila Bilan | 1-0 | 34 | Open |
| 115 | 2024-04-02 | Titled Tue 2nd Apr Late | chess.com INT | 3 | Mark Van der Werf | Kaiqi Yang | 0-1 | 31 | Open |
| 116 | 2024-04-02 | Titled Tue 2nd Apr Late | chess.com INT | 2 | Oleg Papayan | Mark Van der Werf | 1-0 | 49 | Open |
| 117 | 2024-04-02 | Titled Tue 2nd Apr Late | chess.com INT | 1 | Vahe Danielyan | Mark Van der Werf | 0-1 | 40 | Open |
| 118 | 2024-04-02 | Titled Tue 2nd Apr Late | chess.com INT | 11 | Mark Van der Werf | Lukasz Swiatlowski | 0-1 | 44 | Open |
| 119 | 2024-04-02 | Titled Tue 2nd Apr Late | chess.com INT | 10 | Marya Demina | Mark Van der Werf | 0-1 | 43 | Open |
| 120 | 2024-03-23 | Dutch League 2023-24 | Netherlands NED | 8.6 | Mark Van der Werf | Laurin Perkampus | 1-0 | 30 | Open |
| 121 | 2024-03-02 | Dutch League 2023-24 | Netherlands NED | 7.6 | Machteld Van Foreest | Mark Van der Werf | 1/2-1/2 | 25 | Open |
| 122 | 2024-02-03 | Dutch League 2023-24 | Netherlands NED | 6.3 | Mark Van der Werf | Tycho Bakker | 1-0 | 43 | Open |
| 123 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 8 | Mark Van der Werf | Evgenij Shuvalov | 0-1 | 33 | Open |
| 124 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 7 | Maxim Gavrilov | Mark Van der Werf | 0-1 | 46 | Open |
| 125 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 6 | Youness Fareh | Mark Van der Werf | 0-1 | 62 | Open |
| 126 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 5 | Mark Van der Werf | Maria Angelica Carrillo Marval | 1/2-1/2 | 50 | Open |
| 127 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 4 | Augustinas Bazilius | Mark Van der Werf | 1-0 | 44 | Open |
| 128 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 3 | Tiago Batista Oliveira | Mark Van der Werf | 0-1 | 32 | Open |
| 129 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 2 | Mark Van der Werf | Pedro Ramon Martinez Reyes | 0-1 | 72 | Open |
| 130 | 2023-12-16 | Dutch League 2023-24 | Netherlands NED | 5.5 | Jasper Broekmeulen | Mark Van der Werf | 1/2-1/2 | 20 | Open |
| 131 | 2023-11-25 | Dutch League 2023-24 | Netherlands NED | 4.1 | Mark Van der Werf | Arthur De Winter | 0-1 | 54 | Open |
| 132 | 2023-11-04 | Dutch League 2023-24 | Netherlands NED | 3.1 | Sjef Rijnaarts | Mark Van der Werf | 1/2-1/2 | 32 | Open |
| 133 | 2023-10-07 | 38th ECC Open 2023 | Durres ALB | 7.11 | Borna Derakhshani | Mark Van der Werf | 0-1 | 0 | Open |
| 134 | 2023-10-07 | Dutch League 2023-24 | Netherlands NED | 2.2 | Niels Ondersteijn | Mark Van der Werf | 0-1 | 36 | Open |
| 135 | 2023-10-06 | 38th ECC Open 2023 | Durres ALB | 6.1 | Evert Rademakers | Mark Van der Werf | 0-1 | 41 | Open |
| 136 | 2023-10-03 | 38th ECC Open 2023 | Durres ALB | 3.12 | Alessio Boraso | Mark Van der Werf | 1/2-1/2 | 63 | Open |
| 137 | 2023-10-01 | 38th ECC Open 2023 | Durres ALB | 1.8 | Alain Favier | Mark Van der Werf | 1/2-1/2 | 72 | Open |
| 138 | 2023-09-16 | Dutch League 2023-24 | Netherlands NED | 1.3 | Casper Schoppen | Mark Van der Werf | 1/2-1/2 | 48 | Open |
| 139 | 2023-06-03 | ECU Senior +50 2023 | Acqui Terme ITA | 9.3 | Stephen Dishman | Mark Van der Werf | 0-1 | 55 | Open |
| 140 | 2023-06-02 | ECU Senior +50 2023 | Acqui Terme ITA | 8.4 | Mark Van der Werf | Sigurdur Sigfusson | 1/2-1/2 | 62 | Open |
| 141 | 2023-06-01 | ECU Senior +50 2023 | Acqui Terme ITA | 7.3 | Peter Wacker | Mark Van der Werf | 1/2-1/2 | 42 | Open |
| 142 | 2023-05-31 | ECU Senior +50 2023 | Acqui Terme ITA | 6.2 | Mark Van der Werf | Josep Anton Lacasa Diaz | 1/2-1/2 | 19 | Open |
| 143 | 2023-05-30 | ECU Senior +50 2023 | Acqui Terme ITA | 5.2 | Daniel Contin | Mark Van der Werf | 1/2-1/2 | 34 | Open |
| 144 | 2023-05-29 | ECU Senior +50 2023 | Acqui Terme ITA | 4.3 | Mark Van der Werf | Povilas Lasinskas | 1-0 | 63 | Open |
| 145 | 2023-05-28 | ECU Senior +50 2023 | Acqui Terme ITA | 3.2 | Eric Prie | Mark Van der Werf | 1/2-1/2 | 21 | Open |
| 146 | 2023-05-27 | ECU Senior +50 2023 | Acqui Terme ITA | 2.3 | Mark Van der Werf | Luca Roatta | 1-0 | 62 | Open |
| 147 | 2023-05-26 | ECU Senior +50 2023 | Acqui Terme ITA | 1.3 | Christian Tunge | Mark Van der Werf | 0-1 | 65 | Open |
| 148 | 2023-04-22 | Dutch League 2022-23 | Netherlands NED | 9.2 | Erwin L'Ami | Mark Van der Werf | 1-0 | 42 | Open |
| 149 | 2023-04-01 | Dutch League 2022-23 | Netherlands NED | 8.4 | Mark Van der Werf | Friso Nijboer | 0-1 | 46 | Open |
| 150 | 2023-03-11 | Dutch League 2022-23 | Netherlands NED | 7.9 | Mark Van der Werf | Jan Breukelman | 1-0 | 55 | Open |
| 151 | 2023-02-25 | 82nd Noteboom Open | Leiden NED | 4.3 | Casper Schoppen | Mark Van der Werf | 1-0 | 33 | Open |
| 152 | 2023-02-25 | 82nd Noteboom Open | Leiden NED | 3.6 | Mark Van der Werf | Leandro Slagboom | 1-0 | 32 | Open |
| 153 | 2023-02-25 | 82nd Noteboom Open | Leiden NED | 2.4 | Martijn Otten | Mark Van der Werf | 1/2-1/2 | 58 | Open |
| 154 | 2023-02-24 | 82nd Noteboom Open | Leiden NED | 1.5 | Mark Van der Werf | Roger Labruyere | 1-0 | 68 | Open |
| 155 | 2023-02-11 | Dutch League 2022-23 | Netherlands NED | 6.7 | Steven Geirnaert | Mark Van der Werf | 0-1 | 33 | Open |
| 156 | 2023-01-29 | 85th Tata Steel Qualifier | Wijk aan Zee NED | 9.1 | Stefan Beukema | Mark Van der Werf | 1-0 | 41 | Open |
| 157 | 2023-01-28 | 85th Tata Steel Qualifier | Wijk aan Zee NED | 8.3 | Mark Van der Werf | Arthur Pijpers | 0-1 | 31 | Open |
| 158 | 2023-01-27 | 85th Tata Steel Qualifier | Wijk aan Zee NED | 7.5 | Mark Van der Werf | Arthur De Winter | 1/2-1/2 | 32 | Open |
| 159 | 2023-01-25 | 85th Tata Steel Qualifier | Wijk aan Zee NED | 6.3 | Nico Zwirs | Mark Van der Werf | 1-0 | 54 | Open |
| 160 | 2023-01-24 | 85th Tata Steel Qualifier | Wijk aan Zee NED | 5.5 | Mark Van der Werf | Vinicius Tine Martins | 1-0 | 55 | Open |
| 161 | 2023-01-23 | 85th Tata Steel Qualifier | Wijk aan Zee NED | 4.4 | Khoi Pham | Mark Van der Werf | 1/2-1/2 | 47 | Open |
| 162 | 2023-01-22 | 85th Tata Steel Qualifier | Wijk aan Zee NED | 3.1 | Mark Van der Werf | Siem Van Dael | 1/2-1/2 | 53 | Open |
| 163 | 2023-01-21 | 85th Tata Steel Qualifier | Wijk aan Zee NED | 2.2 | Sanjin Culum | Mark Van der Werf | 1-0 | 37 | Open |
| 164 | 2023-01-20 | 85th Tata Steel Qualifier | Wijk aan Zee NED | 1.4 | Mark Van der Werf | Jasel Lopez | 1/2-1/2 | 26 | Open |
| 165 | 2022-12-17 | Dutch League 2022-23 | Netherlands NED | 5.7 | Mark Van der Werf | Sjo Smeets | 1-0 | 40 | Open |
| 166 | 2022-11-26 | Dutch League 2022-23 | Netherlands NED | 4.3 | Mark Van der Werf | Ruud Van Meegen | 1-0 | 50 | Open |
| 167 | 2022-11-05 | Dutch League 2022-23 | Netherlands NED | 3.3 | Glen De Schampheleire | Mark Van der Werf | 1-0 | 43 | Open |
| 168 | 2022-10-09 | 37th ECC Open 2022 | Mayrhofen AUT | 7.9 | Ido Gorshtein | Mark Van der Werf | 1/2-1/2 | 42 | Open |
| 169 | 2022-10-08 | Dutch League 2022-23 | Netherlands NED | 2.4 | Jorden Van Foreest | Mark Van der Werf | 1-0 | 47 | Open |
| 170 | 2022-10-07 | 37th ECC Open 2022 | Mayrhofen AUT | 5.7 | Mark Van der Werf | Sebastian Bogner | 1/2-1/2 | 22 | Open |
| 171 | 2022-10-04 | 37th ECC Open 2022 | Mayrhofen AUT | 2.2 | Mark Van der Werf | Radoslaw Wojtaszek | 1/2-1/2 | 35 | Open |
| 172 | 2022-09-17 | Dutch League 2022-23 | Netherlands NED | 1.1 | Mark Van der Werf | Martijn Van der Eijk | 1-0 | 66 | Open |
| 173 | 2022-05-21 | Dutch League 2021-22 | Netherlands NED | 5.5 | Michel De Wit | Mark Van der Werf | 0-1 | 65 | Open |
| 174 | 2022-04-23 | Dutch League 2021-22 | Netherlands NED | 9.3 | Pieter Roggeveen | Mark Van der Werf | 0-1 | 69 | Open |
| 175 | 2022-03-12 | Dutch League 2021-22 | Netherlands NED | 7.3 | Erwin L'Ami | Mark Van der Werf | 1/2-1/2 | 50 | Open |
| 176 | 2022-02-05 | Dutch League 2021-22 | Netherlands NED | 6.1 | Jose Miguel Teixeira Margarido | Mark Van der Werf | 1/2-1/2 | 45 | Open |
| 177 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 9 | Mark Van der Werf | Bianka Havanecz | 0-1 | 38 | Open |
| 178 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 8 | Robert Aloma Vidal | Mark Van der Werf | 1-0 | 53 | Open |
| 179 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 7 | Mark Van der Werf | Lennis Martinez Ramirez | 1-0 | 58 | Open |
| 180 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 6 | Oleg Artemenko | Mark Van der Werf | 1-0 | 22 | Open |
| 181 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 5 | Orest Vovk | Mark Van der Werf | 1-0 | 17 | Open |
| 182 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 4 | Mark Van der Werf | Meri Arabidze | 1-0 | 44 | Open |
| 183 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 3 | Mark Van der Werf | Fernando Broca Jimenez | 1-0 | 14 | Open |
| 184 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 2 | Oleg V Ivanov | Mark Van der Werf | 1-0 | 45 | Open |
| 185 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 1 | Mark Van der Werf | Oleg Krivonosov | 1/2-1/2 | 62 | Open |
| 186 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 11 | Alain Prieto Aranguren | Mark Van der Werf | 1-0 | 31 | Open |
| 187 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 10 | Talaibek Osmonbekov | Mark Van der Werf | 0-1 | 31 | Open |
| 188 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 9 | Francisco De Assis Medeiros Jr | Mark Van der Werf | 0-1 | 26 | Open |
| 189 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 8 | Mark Van der Werf | Talaibek Osmonbekov | 0-1 | 59 | Open |
| 190 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 7 | John Curtis | Mark Van der Werf | 1-0 | 49 | Open |
| 191 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 6 | Alexander Andres Hernandez Jimenez | Mark Van der Werf | 1-0 | 45 | Open |
| 192 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 5 | Mark Van der Werf | Daria Zaichenko | 1-0 | 37 | Open |
| 193 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 4 | Tickoo Sahil | Mark Van der Werf | 1-0 | 48 | Open |
| 194 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 3 | Mark Van der Werf | Vasiliy Korchmar | 0-1 | 42 | Open |
| 195 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 2 | Mark Van der Werf | Chris W Baker | 1-0 | 46 | Open |
| 196 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 1 | Shamsiddin Vokhidov | Mark Van der Werf | 1-0 | 53 | Open |
| 197 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 11 | Marya Kiseljova | Mark Van der Werf | 0-1 | 58 | Open |
| 198 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 10 | Mark Van der Werf | Bjorn 1971 Andersson | 0-1 | 47 | Open |
| 199 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 9 | Mark Van der Werf | Alexandr Kostiukov | 1-0 | 31 | Open |
| 200 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 8 | Pavel-Alexandru Nastore | Mark Van der Werf | 1-0 | 50 | Open |
| 201 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 7 | Mark Van der Werf | Cristian-Clement Daianu | 1-0 | 23 | Open |
| 202 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 6 | Ian T. Findlay | Mark Van der Werf | 1-0 | 19 | Open |
| 203 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 5 | Mark Van der Werf | Alexandra Zherebtsova | 1-0 | 61 | Open |
| 204 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 4 | Olga Zhuravleva | Mark Van der Werf | 1-0 | 36 | Open |
| 205 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 3 | Mark Van der Werf | Konstantin Begunov | 1-0 | 36 | Open |
| 206 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 2 | Prithu Gupta | Mark Van der Werf | 1-0 | 26 | Open |
| 207 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 1 | Mark Van der Werf | Jeffery Xiong | 0-1 | 35 | Open |
| 208 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 11 | Mark Van der Werf | Tymon Ochedzan | 0-1 | 15 | Open |
| 209 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 10 | Arthur Muromtsev | Mark Van der Werf | 0-1 | 37 | Open |
| 210 | 2021-11-27 | Dutch League 2021-22 | Netherlands NED | 4.7 | Namig Guliyev | Mark Van der Werf | 1/2-1/2 | 44 | Open |
| 211 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 9 | Mark Van der Werf | Evandro Amorim Barbosa | 0-1 | 64 | Open |
| 212 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 8 | Mark Van der Werf | Shyaam Nikhil P | 1/2-1/2 | 54 | Open |
| 213 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 7 | Dumitru-Daniel Dinu | Mark Van der Werf | 0-1 | 34 | Open |
| 214 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 6 | Mark Van der Werf | Vasiliy Shimelkov | 0-1 | 45 | Open |
| 215 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 5 | Mark Van der Werf | Fiona Steil-Antoni | 1-0 | 50 | Open |
| 216 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 4 | Roman Yanchenko | Mark Van der Werf | 1-0 | 20 | Open |
| 217 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 3 | Michal Provaznik | Mark Van der Werf | 0-1 | 29 | Open |
| 218 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 2 | Mark Van der Werf | Lewis Martin | 1-0 | 59 | Open |
| 219 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 1 | Raunak Sadhwani | Mark Van der Werf | 1-0 | 31 | Open |
| 220 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 11 | Mark Van der Werf | Semetei Tologon tegin | 0-1 | 49 | Open |
| 221 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 10 | Armin Kekic | Mark Van der Werf | 0-1 | 42 | Open |
| 222 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 9 | Mark Van der Werf | Evandro Amorim Barbosa | 1-0 | 52 | Open |
| 223 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 8 | Mark Van der Werf | Balazs Csonka | 1/2-1/2 | 22 | Open |
| 224 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 7 | Damian Lewtak | Mark Van der Werf | 0-1 | 91 | Open |
| 225 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 6 | Mark Van der Werf | 10834487274425945199 | 1-0 | 48 | Open |
| 226 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 5 | Mark Van der Werf | Miroslav Simonovic | 1/2-1/2 | 55 | Open |
| 227 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 4 | Alexandros Papasimakopoulos | Mark Van der Werf | 1-0 | 51 | Open |
| 228 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 3 | James Allen Dahlgren | Mark Van der Werf | 0-1 | 71 | Open |
| 229 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 2 | Mark Van der Werf | Zachary Tanenbaum | 0-1 | 43 | Open |
| 230 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 1 | Gisela Roque Sola | Mark Van der Werf | 0-1 | 35 | Open |
| 231 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 11 | Mark Van der Werf | Farid Mustafayev | 0-1 | 41 | Open |
| 232 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 10 | Mukhiddin Madaminov | Mark Van der Werf | 1-0 | 23 | Open |
| 233 | 2021-11-06 | Dutch League 2021-22 | Netherlands NED | 3.9 | Mark Van der Werf | Hendrik Pieter Hoeksema | 1/2-1/2 | 45 | Open |
| 234 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 8 | Fruzsina Szente Varga | Mark Van der Werf | 1-0 | 56 | Open |
| 235 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 7 | Mark Van der Werf | Robert Sanchez | 1-0 | 33 | Open |
| 236 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 6 | Evgeny Sapunov | Mark Van der Werf | 1-0 | 36 | Open |
| 237 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 5 | Igor L. Vakhlamov | Mark Van der Werf | 1-0 | 16 | Open |
| 238 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 4 | Mark Van der Werf | Vasiliy Shimelkov | 1-0 | 37 | Open |
| 239 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 3 | Mark Van der Werf | Andres Palu | 1-0 | 32 | Open |
| 240 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 2 | Vuk Djordjevic | Mark Van der Werf | 1-0 | 43 | Open |
| 241 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 1 | Mark Van der Werf | Maksims Golubovskis | 1-0 | 25 | Open |
| 242 | 2021-10-19 | Titled Tuesday 19th Oct | chess.com INT | 9 | Roman Ovetchkin | Mark Van der Werf | 1-0 | 42 | Open |
| 243 | 2021-10-19 | Titled Tuesday 19th Oct | chess.com INT | 8 | Mark Van der Werf | Krzysztof Budrewicz | 1-0 | 38 | Open |
| 244 | 2021-10-19 | Titled Tuesday 19th Oct | chess.com INT | 7 | Mark Van der Werf | Vitaly Gurvich | 0-1 | 36 | Open |
| 245 | 2021-10-19 | Titled Tuesday 19th Oct | chess.com INT | 6 | Ajay Karthikeyan | Mark Van der Werf | 0-1 | 33 | Open |
| 246 | 2021-10-19 | Titled Tuesday 19th Oct | chess.com INT | 5 | Vladimir Mikhailovsky | Mark Van der Werf | 0-1 | 40 | Open |
| 247 | 2021-10-19 | Titled Tuesday 19th Oct | chess.com INT | 4 | Mark Van der Werf | Ramon Jr. Manon-og | 1-0 | 36 | Open |
| 248 | 2021-10-19 | Titled Tuesday 19th Oct | chess.com INT | 3 | Mark Van der Werf | Victor Bologan | 0-1 | 29 | Open |
| 249 | 2021-10-19 | Titled Tuesday 19th Oct | chess.com INT | 2 | Tatiana Bogumil | Mark Van der Werf | 0-1 | 36 | Open |
| 250 | 2021-10-19 | Titled Tuesday 19th Oct | chess.com INT | 1 | Mark Van der Werf | Pablo Salinas Herrera | 0-1 | 22 | Open |
| 251 | 2021-10-19 | Titled Tuesday 19th Oct | chess.com INT | 11 | Mark Van der Werf | Piotr Piesik | 1/2-1/2 | 60 | Open |
| 252 | 2021-10-19 | Titled Tuesday 19th Oct | chess.com INT | 10 | Robert Baskin | Mark Van der Werf | 0-1 | 54 | Open |
| 253 | 2021-10-09 | Dutch League 2021-22 | Netherlands NED | 2.7 | Hans Groffen | Mark Van der Werf | 1/2-1/2 | 39 | Open |
| 254 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 9 | Mark Van der Werf | Andrzej Krzywda | 1-0 | 54 | Open |
| 255 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 8 | Zachary Tanenbaum | Mark Van der Werf | 1-0 | 46 | Open |
| 256 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 7 | Shahin Mohandesi | Mark Van der Werf | 0-1 | 36 | Open |
| 257 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 6 | Mark Van der Werf | Leonardo Tristan | 0-1 | 30 | Open |
| 258 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 5 | Chamal Gedgafov | Mark Van der Werf | 0-1 | 28 | Open |
| 259 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 4 | Aydin Suleymanli | Mark Van der Werf | 1-0 | 26 | Open |
| 260 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 3 | Mark Van der Werf | Artak Manukian | 1-0 | 47 | Open |
| 261 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 2 | Mark Van der Werf | Masa Maksimovic | 1/2-1/2 | 33 | Open |
| 262 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 1 | Matthias Bluebaum | Mark Van der Werf | 1-0 | 30 | Open |
| 263 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 11 | Trisha Kanyamarala | Mark Van der Werf | 1/2-1/2 | 68 | Open |
| 264 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 10 | Mark Van der Werf | Roberto Junio Brito Molina | 1/2-1/2 | 42 | Open |
| 265 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 9 | Mark Van der Werf | Marco Materia | 0-1 | 25 | Open |
| 266 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 8 | Alexander Suvorov | Mark Van der Werf | 1/2-1/2 | 26 | Open |
| 267 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 7 | Mateus Nakajo Mendonca | Mark Van der Werf | 0-1 | 38 | Open |
| 268 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 6 | Mark Van der Werf | Valentina Golubenko | 1-0 | 28 | Open |
| 269 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 5 | Andrei Macovei | Mark Van der Werf | 1-0 | 39 | Open |
| 270 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 4 | Mark Van der Werf | Leandro Krysa | 0-1 | 47 | Open |
| 271 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 3 | Mark Van der Werf | Zachary Tanenbaum | 1-0 | 39 | Open |
| 272 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 2 | Cristiano Gomes De Souza | Mark Van der Werf | 0-1 | 22 | Open |
| 273 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 1 | Mark Van der Werf | Siva Mahadevan | 0-1 | 35 | Open |
| 274 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 11 | Artak Manukian | Mark Van der Werf | 0-1 | 29 | Open |
| 275 | 2021-09-07 | Titled Tuesday 7th Sept | chess.com INT | 10 | Alexandre Qashashvili | Mark Van der Werf | 1-0 | 47 | Open |
| 276 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 9 | Bharath Subramaniyam H | Mark Van der Werf | 1-0 | 60 | Open |
| 277 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 8 | Mark Van der Werf | Semen Grebeniuk | 1-0 | 29 | Open |
| 278 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 7 | Alexandr Kostiukov | Mark Van der Werf | 0-1 | 41 | Open |
| 279 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 6 | Mark Van der Werf | Arseny Alavkin | 0-1 | 57 | Open |
| 280 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 5 | Isuru Alahakoon | Mark Van der Werf | 0-1 | 64 | Open |
| 281 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 4 | Mark Van der Werf | Elena Potapova | 1-0 | 36 | Open |
| 282 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 3 | Jesper Morch Lauridsen | Mark Van der Werf | 1-0 | 53 | Open |
| 283 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 2 | Mark Van der Werf | Emilio Agustin Castellanos Hernandez | 1/2-1/2 | 82 | Open |
| 284 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 1 | Pavel Eljanov | Mark Van der Werf | 1-0 | 55 | Open |
| 285 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 11 | Mark Van der Werf | Aleksandra Goryachkina | 0-1 | 38 | Open |
| 286 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 10 | Mark Van der Werf | Jeffrey Quirke | 1-0 | 37 | Open |
| 287 | 2021-02-20 | World Corporate East A | chess.com INT | 6.7 | Mark Van der Werf | Kiran Bemarkar | 1-0 | 22 | Open |
| 288 | 2021-02-20 | World Corporate East A | chess.com INT | 5.9 | SHRIVASTAVA SAVITA | Mark Van der Werf | 0-1 | 60 | Open |
| 289 | 2021-02-19 | World Corporate East A | chess.com INT | 3.12 | Mark Van der Werf | Dandel Fernandez | 1-0 | 38 | Open |
| 290 | 2021-02-19 | World Corporate East A | chess.com INT | 2.9 | Elvira Berend | Mark Van der Werf | 1/2-1/2 | 49 | Open |
| 291 | 2021-02-19 | World Corporate East A | chess.com INT | 1.7 | Mark Van der Werf | 3924266844809010569 | 0-1 | 0 | Open |
| 292 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 9 | Mark Van der Werf | Facundo Vazquez | 0-1 | 37 | Open |
| 293 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 8 | Myroslava Hrabinska | Mark Van der Werf | 0-1 | 24 | Open |
| 294 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 7 | Raphael Mayaud | Mark Van der Werf | 1/2-1/2 | 55 | Open |
| 295 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 6 | Mark Van der Werf | Jesper Morch Lauridsen | 1-0 | 46 | Open |
| 296 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 11 | Jay Bonin | Mark Van der Werf | 1-0 | 39 | Open |
| 297 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 10 | Mark Van der Werf | Markus Mueller | 1-0 | 56 | Open |
| 298 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 7 | Natasha Berdychevskaya | Mark Van der Werf | 1-0 | 36 | Open |
| 299 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 6 | Nataliya Buksa | Mark Van der Werf | 1-0 | 38 | Open |
| 300 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 5 | Mark Van der Werf | Miroslav Simonovic | 1-0 | 35 | Open |
| 301 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 4 | Mark Van der Werf | Azat Gabdrakhmanov | 0-1 | 49 | Open |
| 302 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 3 | Mihailo Djokic | Mark Van der Werf | 1-0 | 35 | Open |
| 303 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 1 | Mark Van der Werf | Tor Fredrik Kaasen | 0-1 | 25 | Open |
| 304 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 9 | Mark Van der Werf | Mike Sailer | 0-1 | 48 | Open |
| 305 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 8 | Artyom Manukyan | Mark Van der Werf | 1-0 | 61 | Open |
| 306 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 7 | Mark Van der Werf | Kamal Aghasiyev | 1-0 | 31 | Open |
| 307 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 5 | Sergey Sergienko | Mark Van der Werf | 1-0 | 18 | Open |
| 308 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 4 | Mark Van der Werf | Gahan M G | 0-1 | 59 | Open |
| 309 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 3 | Mark Van der Werf | Iulian Necula | 1-0 | 25 | Open |
| 310 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 1 | Mark Van der Werf | Vjacheslav Weetik | 0-1 | 29 | Open |
| 311 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 9 | Mark Van der Werf | 35010247 | 1/2-1/2 | 55 | Open |
| 312 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 8 | Trisha Kanyamarala | Mark Van der Werf | 1/2-1/2 | 54 | Open |
| 313 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 7 | Noam Aviv Vitenberg | Mark Van der Werf | 1-0 | 37 | Open |
| 314 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 6 | Mark Van der Werf | Arina Kiseleva | 1-0 | 28 | Open |
| 315 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 5 | Mark Van der Werf | Alexander Reprintsev | 0-1 | 53 | Open |
| 316 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 4 | Jie Yi Goh | Mark Van der Werf | 0-1 | 30 | Open |
| 317 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 2 | Pavel Y. Politov | Mark Van der Werf | 1-0 | 31 | Open |
| 318 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 1 | Mark Van der Werf | Alexey Ponikarovsky | 0-1 | 29 | Open |
| 319 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 10 | Krzysztof Budrewicz | Mark Van der Werf | 0-1 | 14 | Open |
| 320 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 8 | Carlo Stromboli | Mark Van der Werf | 1-0 | 55 | Open |
| 321 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 7 | Mark Van der Werf | Tihomir Yanev | 0-1 | 54 | Open |
| 322 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 6 | Mark Van der Werf | Israel Caspi | 0-1 | 44 | Open |
| 323 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 5 | Bogdan Belyakov | Mark Van der Werf | 1/2-1/2 | 63 | Open |
| 324 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 4 | Mark Van der Werf | Jiri Stocek | 0-1 | 40 | Open |
| 325 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 3 | Aleksey Mikheev | Mark Van der Werf | 0-1 | 52 | Open |
| 326 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 2 | Mateusz Bartel | Mark Van der Werf | 1-0 | 49 | Open |
| 327 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 1 | Mark Van der Werf | Zoran Novoselski | 1-0 | 50 | Open |
| 328 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 8 | Jozsef Jeszenszky | Mark Van der Werf | 1/2-1/2 | 12 | Open |
| 329 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 7 | Mark Van der Werf | Lucian-Ioan Filip | 1-0 | 37 | Open |
| 330 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 6 | Arman Mikaelyan | Mark Van der Werf | 1-0 | 62 | Open |
| 331 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 5 | Mark Van der Werf | Vasily Volovich | 1-0 | 47 | Open |
| 332 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 4 | David Shahinyan | Mark Van der Werf | 1-0 | 44 | Open |
| 333 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 3 | Evgeny Pigusov | Mark Van der Werf | 1/2-1/2 | 53 | Open |
| 334 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 2 | Mark Van der Werf | Suren Poghosyan | 1-0 | 31 | Open |
| 335 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 1 | Mark Van der Werf | Vojtech Zwardon | 0-1 | 31 | Open |
| 336 | 2020-03-07 | Dutch League 2019-20 | Netherlands NED | 6.3 | Wouter Spoelman | Mark Van der Werf | 0-1 | 86 | Open |
| 337 | 2020-03-01 | 80th Noteboom Open | Leiden NED | 6.1 | Yuri Solodovnichenko | Mark Van der Werf | 1/2-1/2 | 28 | Open |
| 338 | 2020-03-01 | 80th Noteboom Open | Leiden NED | 5.1 | Yuriy Kuzubov | Mark Van der Werf | 0-1 | 59 | Open |
| 339 | 2020-02-29 | 80th Noteboom Open | Leiden NED | 4.3 | Mark Van der Werf | Midas Ratsma | 1-0 | 44 | Open |
| 340 | 2020-02-01 | Dutch League 2019-20 | Netherlands NED | 5.6 | Richard Vedder | Mark Van der Werf | 0-1 | 34 | Open |
| 341 | 2019-11-23 | Dutch League 2019-20 | Netherlands NED | 3.5 | Mark Van der Werf | Ilja Zaragatski | 1/2-1/2 | 29 | Open |
| 342 | 2019-11-23 | World Senior 50+ 2019 | Bucharest ROU | 11.9 | Mark Van der Werf | Milos Pavlovic | 0-1 | 63 | Open |
| 343 | 2019-11-22 | World Senior 50+ 2019 | Bucharest ROU | 10.16 | Mark Van der Werf | Kok Siong Teo | 1-0 | 26 | Open |
| 344 | 2019-11-21 | World Senior 50+ 2019 | Bucharest ROU | 9.2 | Dale R. Haessel | Mark Van der Werf | 0-1 | 43 | Open |
| 345 | 2019-11-20 | World Senior 50+ 2019 | Bucharest ROU | 8.15 | Sergey Smolin | Mark Van der Werf | 1-0 | 51 | Open |
| 346 | 2019-11-19 | World Senior 50+ 2019 | Bucharest ROU | 7.21 | Mark Van der Werf | Conny Holst | 1-0 | 43 | Open |
| 347 | 2019-11-18 | World Senior 50+ 2019 | Bucharest ROU | 6.2 | Neil Farrell | Mark Van der Werf | 1/2-1/2 | 82 | Open |
| 348 | 2019-11-16 | World Senior 50+ 2019 | Bucharest ROU | 5.28 | Mark Van der Werf | Athanasios Mitrandzas | 1-0 | 31 | Open |
| 349 | 2019-11-15 | World Senior 50+ 2019 | Bucharest ROU | 4.18 | Vasyl Stets | Mark Van der Werf | 1-0 | 42 | Open |
| 350 | 2019-11-14 | World Senior 50+ 2019 | Bucharest ROU | 3.26 | Mark Van der Werf | Kevin P Goater | 1-0 | 33 | Open |
| 351 | 2019-11-13 | World Senior 50+ 2019 | Bucharest ROU | 2.18 | Almaz Asanov | Mark Van der Werf | 1-0 | 62 | Open |
| 352 | 2019-11-12 | World Senior 50+ 2019 | Bucharest ROU | 1.23 | Mark Van der Werf | Uwe Gebhardt | 1-0 | 27 | Open |
| 353 | 2019-11-02 | Dutch League 2019-20 | Netherlands NED | 2.3 | Michel De Wit | Mark Van der Werf | 0-1 | 15 | Open |
| 354 | 2019-09-28 | Dutch League 2019-20 | Netherlands NED | 1.2 | Nick Maatman | Mark Van der Werf | 0-1 | 51 | Open |
| 355 | 2019-07-21 | 13th Leiden Open A 2019 | Leiden NED | 9.4 | Hing Ting Lai | Mark Van der Werf | 1-0 | 47 | Open |
| 356 | 2019-07-20 | 13th Leiden Open A 2019 | Leiden NED | 8.5 | Mark Van der Werf | Stijn Gieben | 1-0 | 14 | Open |
| 357 | 2019-07-19 | 13th Leiden Open A 2019 | Leiden NED | 7.3 | Mark Van der Werf | Thomas Beerdsen | 1/2-1/2 | 19 | Open |
| 358 | 2019-07-18 | 13th Leiden Open A 2019 | Leiden NED | 6.1 | Sandipan Chanda | Mark Van der Werf | 1-0 | 49 | Open |
| 359 | 2019-07-17 | 13th Leiden Open A 2019 | Leiden NED | 5.2 | Vyacheslav Ikonnikov | Mark Van der Werf | 1/2-1/2 | 31 | Open |
| 360 | 2019-07-15 | 13th Leiden Open A 2019 | Leiden NED | 4.2 | Mark Van der Werf | Sergey Ivanov | 1/2-1/2 | 41 | Open |
| 361 | 2019-07-14 | 13th Leiden Open A 2019 | Leiden NED | 3.5 | Nyuk Lyn Cchung | Mark Van der Werf | 0-1 | 56 | Open |
| 362 | 2019-07-13 | 13th Leiden Open A 2019 | Leiden NED | 2.6 | Mark Van der Werf | Lambertus Van der Marel | 1-0 | 56 | Open |
| 363 | 2019-07-12 | 13th Leiden Open A 2019 | Leiden NED | 1.7 | Henk Happel | Mark Van der Werf | 0-1 | 23 | Open |
| 364 | 2019-05-11 | Dutch League 2018-19 | Netherlands NED | 9.6 | Nargiz Umudova | Mark Van der Werf | 1-0 | 60 | Open |
| 365 | 2019-04-13 | Dutch League 2018-19 | Netherlands NED | 8.9 | Tijmen Kampman | Mark Van der Werf | 1/2-1/2 | 51 | Open |
| 366 | 2019-03-16 | Dutch League 2018-19 | Netherlands NED | 7.7 | Mark Van der Werf | Robert Ris | 0-1 | 44 | Open |
| 367 | 2019-02-24 | 79th Noteboom Open | Leiden NED | 6.2 | Simon Elgersma | Mark Van der Werf | 1-0 | 64 | Open |
| 368 | 2019-02-24 | 79th Noteboom Open | Leiden NED | 5.2 | Mark Van der Werf | Rick Lahaye | 1-0 | 30 | Open |
| 369 | 2019-02-23 | 79th Noteboom Open | Leiden NED | 4.4 | Mark Van der Werf | Michiel Van Wissen | 1-0 | 46 | Open |
| 370 | 2019-02-23 | 79th Noteboom Open | Leiden NED | 3.6 | Stefan Tabak | Mark Van der Werf | 0-1 | 36 | Open |
| 371 | 2019-02-22 | 79th Noteboom Open | Leiden NED | 1.5 | Elmar Hommes | Mark Van der Werf | 1/2-1/2 | 48 | Open |
| 372 | 2019-02-09 | Dutch League 2018-19 | Netherlands NED | 6.7 | Simon Provoost | Mark Van der Werf | 1/2-1/2 | 39 | Open |
| 373 | 2018-12-15 | Dutch League 2018-19 | Netherlands NED | 5.6 | Daniel Dardha | Mark Van der Werf | 0-1 | 40 | Open |
| 374 | 2018-11-29 | World Senior 50+ 2018 | Bled SLO | 11.1 | Karen Movsziszian | Mark Van der Werf | 1/2-1/2 | 14 | Open |
| 375 | 2018-11-28 | World Senior 50+ 2018 | Bled SLO | 10.4 | Keith C Arkell | Mark Van der Werf | 0-1 | 49 | Open |
| 376 | 2018-11-27 | World Senior 50+ 2018 | Bled SLO | 9.5 | Mark Van der Werf | Henrik Danielsen | 1-0 | 33 | Open |
| 377 | 2018-11-26 | World Senior 50+ 2018 | Bled SLO | 8.7 | David H. Cummings | Mark Van der Werf | 1/2-1/2 | 35 | Open |
| 378 | 2018-11-25 | World Senior 50+ 2018 | Bled SLO | 7.4 | Mark Van der Werf | Klaus Bischoff | 1/2-1/2 | 49 | Open |
| 379 | 2018-11-23 | World Senior 50+ 2018 | Bled SLO | 6.8 | Neil Farrell | Mark Van der Werf | 0-1 | 18 | Open |
| 380 | 2018-11-22 | World Senior 50+ 2018 | Bled SLO | 5.7 | Mark Van der Werf | Ali Habibi | 1/2-1/2 | 48 | Open |
| 381 | 2018-11-21 | World Senior 50+ 2018 | Bled SLO | 4.1 | Jonathan I M Grant | Mark Van der Werf | 0-1 | 63 | Open |
| 382 | 2018-11-20 | World Senior 50+ 2018 | Bled SLO | 3.16 | Mark Van der Werf | Vedat Ali Cetinkaya | 1-0 | 21 | Open |
| 383 | 2018-11-19 | World Senior 50+ 2018 | Bled SLO | 2.1 | Michael Dougherty | Mark Van der Werf | 1-0 | 56 | Open |
| 384 | 2018-11-18 | World Senior 50+ 2018 | Bled SLO | 1.12 | Mark Van der Werf | Roman Schmuki | 1-0 | 39 | Open |
| 385 | 2018-11-03 | Dutch League 2018-19 | Netherlands NED | 3.6 | Friso Nijboer | Mark Van der Werf | 1-0 | 54 | Open |
| 386 | 2018-10-06 | Dutch League 2018-19 | Netherlands NED | 2.6 | Mark Van der Werf | Liam Vrolijk | 0-1 | 31 | Open |
| 387 | 2018-05-10 | TCh-NED Cup 2018 | Apeldoorn NED | 2.2 | Mark Van der Werf | Menno Monsma | 1/2-1/2 | 39 | Open |
| 388 | 2018-05-10 | TCh-NED Cup 2018 | Apeldoorn NED | 1.1 | Christian Braun | Mark Van der Werf | 1-0 | 77 | Open |
| 389 | 2018-04-21 | Dutch League 2017-18 | Netherlands NED | 9.9 | Lennart Dek | Mark Van der Werf | 1-0 | 36 | Open |
| 390 | 2018-04-07 | Dutch League 2017-18 | Netherlands NED | 8.7 | Mark Van der Werf | Merijn Van Delft | 0-1 | 88 | Open |
| 391 | 2018-03-10 | Dutch League 2017-18 | Netherlands NED | 7.1 | Henk Vedder | Mark Van der Werf | 1/2-1/2 | 32 | Open |
| 392 | 2018-02-18 | 78th Noteboom Open | Leiden NED | 6.4 | Mark Van der Werf | Roeland Pruijssers | 0-1 | 32 | Open |
| 393 | 2018-02-17 | 78th Noteboom Open | Leiden NED | 3.1 | Benjamin Bok | Mark Van der Werf | 1-0 | 68 | Open |
| 394 | 2018-02-03 | Dutch League 2017-18 | Netherlands NED | 6.9 | Mark Van der Werf | Maurice Schippers | 1-0 | 41 | Open |
| 395 | 2018-01-28 | 80th Tata Steel TOP | Wijk aan Zee NED | 9 | Mark Van der Werf | Stefan Kuipers | 1-0 | 34 | Open |
| 396 | 2018-01-27 | 80th Tata Steel TOP | Wijk aan Zee NED | 8 | Arthur Pijpers | Mark Van der Werf | 1/2-1/2 | 53 | Open |
| 397 | 2018-01-26 | 80th Tata Steel TOP | Wijk aan Zee NED | 7 | Mark Van der Werf | Vasily Papin | 1/2-1/2 | 53 | Open |
| 398 | 2018-01-24 | 80th Tata Steel TOP | Wijk aan Zee NED | 6 | Nurgyul Salimova | Mark Van der Werf | 0-1 | 91 | Open |
| 399 | 2018-01-23 | 80th Tata Steel TOP | Wijk aan Zee NED | 5 | Mark Van der Werf | Stefan Bekker | 1/2-1/2 | 86 | Open |
| 400 | 2018-01-22 | 80th Tata Steel TOP | Wijk aan Zee NED | 4 | Ari Dale | Mark Van der Werf | 1/2-1/2 | 51 | Open |
| 401 | 2018-01-21 | 80th Tata Steel TOP | Wijk aan Zee NED | 3 | Stefan Beukema | Mark Van der Werf | 1/2-1/2 | 50 | Open |
| 402 | 2018-01-20 | 80th Tata Steel TOP | Wijk aan Zee NED | 2 | Mark Van der Werf | Liam Vrolijk | 1/2-1/2 | 30 | Open |
| 403 | 2018-01-19 | 80th Tata Steel TOP | Wijk aan Zee NED | 1 | Thomas Beerdsen | Mark Van der Werf | 1/2-1/2 | 65 | Open |
| 404 | 2017-12-16 | Dutch League 2017-18 | Netherlands NED | 5.9 | Marijn Den Hartog | Mark Van der Werf | 1/2-1/2 | 82 | Open |
| 405 | 2017-11-04 | Dutch League 2017-18 | Netherlands NED | 3.1 | Mark Van der Werf | Niels Ondersteijn | 1-0 | 26 | Open |
| 406 | 2017-10-07 | Dutch League 2017-18 | Netherlands NED | 2.9 | Amir Rezasade | Mark Van der Werf | 1/2-1/2 | 45 | Open |
| 407 | 2017-09-16 | Dutch League 2017-18 | Netherlands NED | 1.6 | Nick Maatman | Mark Van der Werf | 1/2-1/2 | 37 | Open |
| 408 | 2017-05-06 | Dutch League 2016-17 | Netherlands NED | 9.8 | Clement Rihouay | Mark Van der Werf | 1-0 | 61 | Open |
| 409 | 2017-04-01 | Dutch League 2016-17 | Netherlands NED | 8.1 | Robin Reichardt | Mark Van der Werf | 0-1 | 39 | Open |
| 410 | 2017-02-04 | Dutch League 2016-17 | Netherlands NED | 6.8 | Adrian Roos | Mark Van der Werf | 1-0 | 18 | Open |
| 411 | 2016-12-17 | Dutch League 2016-17 | Netherlands NED | 5.6 | Mark Van der Werf | Jasper Broekmeulen | 1/2-1/2 | 41 | Open |
| 412 | 2016-11-26 | Dutch League 2016-17 | Netherlands NED | 4.1 | Sjef Rijnaarts | Mark Van der Werf | 1-0 | 41 | Open |
| 413 | 2016-11-12 | 32nd ECC Open 2016 | Novi Sad SRB | 7.7 | Mark Van der Werf | Lothar Vogt | 1/2-1/2 | 32 | Open |
| 414 | 2016-11-11 | 32nd ECC Open 2016 | Novi Sad SRB | 6.12 | Ralph Buss | Mark Van der Werf | 1/2-1/2 | 38 | Open |
| 415 | 2016-11-10 | 32nd ECC Open 2016 | Novi Sad SRB | 5.14 | Mark Van der Werf | Janko Radovic | 1/2-1/2 | 37 | Open |
| 416 | 2016-11-09 | 32nd ECC Open 2016 | Novi Sad SRB | 4.18 | Mark Van der Werf | Kamil Banas | 1-0 | 28 | Open |
| 417 | 2016-11-08 | 32nd ECC Open 2016 | Novi Sad SRB | 3.16 | Mats Persson | Mark Van der Werf | 1/2-1/2 | 59 | Open |
| 418 | 2016-11-07 | 32nd ECC Open 2016 | Novi Sad SRB | 2.8 | Mark Van der Werf | Vladimir Fedoseev | 0-1 | 51 | Open |
| 419 | 2016-11-06 | 32nd ECC Open 2016 | Novi Sad SRB | 1.23 | Alastair F White | Mark Van der Werf | 0-1 | 28 | Open |
| 420 | 2016-11-05 | Dutch League 2016-17 | Netherlands NED | 3.5 | Jorden Van Foreest | Mark Van der Werf | 1-0 | 55 | Open |
| 421 | 2016-10-08 | Dutch League 2016-17 | Netherlands NED | 2.7 | Mark Van der Werf | Eelke De Boer | 1-0 | 31 | Open |
| 422 | 2016-09-17 | Dutch League 2016-17 | Netherlands NED | 1.3 | Vitaly Kunin | Mark Van der Werf | 1/2-1/2 | 102 | Open |
| 423 | 2016-04-23 | Dutch League 2015-16 | Netherlands NED | 9.5 | Vincent Diepeveen | Mark Van der Werf | 0-1 | 41 | Open |
| 424 | 2016-04-02 | Dutch League 2015-16 | Netherlands NED | 8.7 | Mark Van der Werf | Valeer Maes | 1-0 | 62 | Open |
| 425 | 2016-03-19 | Dutch League 2015-16 | Netherlands NED | 7.5 | Alexander Van Beek | Mark Van der Werf | 1-0 | 52 | Open |
| 426 | 2016-02-13 | Dutch League 2015-16 | Netherlands NED | 6.9 | Mark Van der Werf | Thorben Koop | 0-1 | 36 | Open |
| 427 | 2016-02-07 | 76th Noteboom Open | Leiden NED | 5.1 | Mark Van der Werf | Raoul Van Ketel | 1-0 | 31 | Open |
| 428 | 2016-02-06 | 76th Noteboom Open | Leiden NED | 3.8 | Mark Van der Werf | Dennis Kerstens | 1/2-1/2 | 35 | Open |
| 429 | 2016-02-06 | 76th Noteboom Open | Leiden NED | 2.16 | Alexander Polak | Mark Van der Werf | 0-1 | 30 | Open |
| 430 | 2016-01-09 | Dutch League 2015-16 | Netherlands NED | 5.3 | Helmut Cardon | Mark Van der Werf | 1-0 | 70 | Open |
| 431 | 2015-12-12 | Dutch League 2015-16 | Netherlands NED | 4.7 | Mark Van der Werf | Namig Guliyev | 0-1 | 69 | Open |
| 432 | 2015-11-07 | Dutch League 2015-16 | Netherlands NED | 3.6 | Mark Van der Werf | Miguoel Admiraal | 1-0 | 64 | Open |
| 433 | 2015-10-24 | 31st ECC Open 2015 | Skopje MKD | 7.7 | Johan-Sebastian Christiansen | Mark Van der Werf | 1/2-1/2 | 75 | Open |
| 434 | 2015-10-23 | 31st ECC Open 2015 | Skopje MKD | 6.1 | Patrick Zelbel | Mark Van der Werf | 1/2-1/2 | 15 | Open |
| 435 | 2015-10-22 | 31st ECC Open 2015 | Skopje MKD | 5.11 | Mark Van der Werf | Ivan Fernandez Torre | 1-0 | 58 | Open |
| 436 | 2015-10-21 | 31st ECC Open 2015 | Skopje MKD | 4.11 | Mark Van der Werf | Stephan Buchal | 0-1 | 42 | Open |
| 437 | 2015-10-20 | 31st ECC Open 2015 | Skopje MKD | 3.1 | Laurence E Webb | Mark Van der Werf | 0-1 | 27 | Open |
| 438 | 2015-10-18 | 31st ECC Open 2015 | Skopje MKD | 1.14 | Mark Van der Werf | 2400260 | 1-0 | 28 | Open |
| 439 | 2015-09-26 | Dutch League 2015-16 | Netherlands NED | 1.8 | Rob Schoorl | Mark Van der Werf | 0-1 | 44 | Open |
| 440 | 2015-04-11 | Dutch League 2014-15 | Netherlands NED | 8.2 | Mark Van der Werf | Tycho Dijkhuis | 1-0 | 30 | Open |
| 441 | 2015-03-21 | Dutch League 2014-15 | Netherlands NED | 7.2 | Erwin L'Ami | Mark Van der Werf | 1/2-1/2 | 51 | Open |
| 442 | 2015-02-15 | 75th Noteboom Open | Leiden NED | 6.1 | Namig Guliyev | Mark Van der Werf | 1-0 | 68 | Open |
| 443 | 2015-02-15 | 75th Noteboom Open | Leiden NED | 5.1 | Mark Van der Werf | Twan Van der Togt | 1-0 | 18 | Open |
| 444 | 2015-02-14 | 75th Noteboom Open | Leiden NED | 4.3 | Stef Soors | Mark Van der Werf | 0-1 | 52 | Open |
| 445 | 2015-02-14 | 75th Noteboom Open | Leiden NED | 3.6 | Mark Van der Werf | Hebert Perez Garcia | 1-0 | 24 | Open |
| 446 | 2015-02-14 | 75th Noteboom Open | Leiden NED | 2.1 | Tom Van De Perre | Mark Van der Werf | 0-1 | 34 | Open |
| 447 | 2015-02-13 | 75th Noteboom Open | Leiden NED | 1.14 | Mark Van der Werf | 6499182568655746025 | 1-0 | 55 | Open |
| 448 | 2015-02-07 | Dutch League 2014-15 | Netherlands NED | 5.7 | Mark Van der Werf | Jan Balje | 1/2-1/2 | 34 | Open |
| 449 | 2014-12-13 | Dutch League 2014-15 | Netherlands NED | 4.3 | Renze Rietveld | Mark Van der Werf | 1-0 | 55 | Open |
| 450 | 2014-11-22 | Dutch League 2014-15 | Netherlands NED | 3.7 | Mark Van der Werf | Michiel Besseling | 1-0 | 27 | Open |
| 451 | 2014-11-01 | Dutch League 2014-15 | Netherlands NED | 2.3 | Benjamin Bok | Mark Van der Werf | 1-0 | 37 | Open |
| 452 | 2014-09-27 | Dutch League 2014-15 | Netherlands NED | 1.4 | Christian Braun | Mark Van der Werf | 0-1 | 33 | Open |
| 453 | 2014-09-16 | 30th ECC Open 2014 | Bilbao ESP | 3.7 | Mark Van der Werf | Dennis Breder | 1/2-1/2 | 42 | Open |
| 454 | 2014-05-10 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 9.6 | Mark Van der Werf | Stefan Kuipers | 1-0 | 42 | Open |
| 455 | 2014-04-12 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 8.5 | Mark Van der Werf | Bart Konijn | 0-1 | 35 | Open |
| 456 | 2014-03-29 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 7.3 | Frank Erwich | Mark Van der Werf | 1/2-1/2 | 34 | Open |
| 457 | 2014-03-08 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 6.5 | Jelmer Jens | Mark Van der Werf | 1-0 | 50 | Open |
| 458 | 2014-03-01 | 74th Noteboom Open 2014 | Leiden NED | 4.15 | Hebert Perez Garcia | Mark Van der Werf | 0-1 | 42 | Open |
| 459 | 2014-03-01 | 74th Noteboom Open 2014 | Leiden NED | 2.4 | Mark Van der Werf | Hans Groffen | 0-1 | 38 | Open |
| 460 | 2014-02-28 | 74th Noteboom Open 2014 | Leiden NED | 1.6 | Peter Ypma | Mark Van der Werf | 0-1 | 34 | Open |
| 461 | 2014-02-08 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 5.1 | Mark Van der Werf | Dimitri Reinderman | 0-1 | 40 | Open |
| 462 | 2014-01-04 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 4.9 | Benjamin Tereick | Mark Van der Werf | 1-0 | 21 | Open |
| 463 | 2013-12-07 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 3.2 | Jeroen Bosch | Mark Van der Werf | 0-1 | 48 | Open |
| 464 | 2013-11-02 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 2.5 | Bonno Pel | Mark Van der Werf | 0-1 | 30 | Open |
| 465 | 2013-09-21 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 1.4 | Martin Martens | Mark Van der Werf | 1-0 | 56 | Open |
| 466 | 2013-01-27 | 75th Tata Steel GpC | Wijk aan Zee NED | 13.6 | Mark Van der Werf | Krikor Sevag Mekhitarian | 0-1 | 38 | Open |
| 467 | 2013-01-26 | 75th Tata Steel GpC | Wijk aan Zee NED | 12.5 | Igor Bitensky | Mark Van der Werf | 1/2-1/2 | 76 | Open |
| 468 | 2013-01-25 | 75th Tata Steel GpC | Wijk aan Zee NED | 11.1 | Mark Van der Werf | Lisa Schut | 0-1 | 93 | Open |
| 469 | 2013-01-23 | 75th Tata Steel GpC | Wijk aan Zee NED | 10.6 | Sabino Brunello | Mark Van der Werf | 1-0 | 75 | Open |
| 470 | 2013-01-22 | 75th Tata Steel GpC | Wijk aan Zee NED | 9.2 | Mark Van der Werf | Robin Swinkels | 0-1 | 77 | Open |
| 471 | 2013-01-20 | 75th Tata Steel GpC | Wijk aan Zee NED | 8.4 | Fernando Peralta | Mark Van der Werf | 1/2-1/2 | 43 | Open |
| 472 | 2013-01-19 | 75th Tata Steel GpC | Wijk aan Zee NED | 7.6 | Mark Van der Werf | Alexander Kovchan | 1/2-1/2 | 55 | Open |
| 473 | 2013-01-18 | 75th Tata Steel GpC | Wijk aan Zee NED | 6.5 | David Klein | Mark Van der Werf | 1-0 | 26 | Open |
| 474 | 2013-01-17 | 75th Tata Steel GpC | Wijk aan Zee NED | 5.7 | Mark Van der Werf | Miguoel Admiraal | 1/2-1/2 | 78 | Open |
| 475 | 2013-01-15 | 75th Tata Steel GpC | Wijk aan Zee NED | 4.3 | Oleg M Romanishin | Mark Van der Werf | 1-0 | 57 | Open |
| 476 | 2013-01-14 | 75th Tata Steel GpC | Wijk aan Zee NED | 3.1 | Mark Van der Werf | Twan Burg | 0-1 | 42 | Open |
| 477 | 2013-01-13 | 75th Tata Steel GpC | Wijk aan Zee NED | 2.4 | Aleksandra Goryachkina | Mark Van der Werf | 1/2-1/2 | 62 | Open |
| 478 | 2013-01-12 | 75th Tata Steel GpC | Wijk aan Zee NED | 1.7 | Hjorvar Steinn Gretarsson | Mark Van der Werf | 1/2-1/2 | 55 | Open |
© 2024-2026 EloTracker