117 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Van der Werf, Mark | Pein, Malcolm | 1/2-1/2 | D85 | Round 8: Van der Werf, Mark - Pein, Malcolm | 2026-09-03 |
| Van der Werf, Mark | David, Alberto | 1/2-1/2 | E42 | Round 6: Van der Werf, Mark - David, Alberto | 2026-09-01 |
| Van der Werf, Mark | Ganaus, Hannes | 1-0 | D35 | Round 5: Van der Werf, Mark - Ganaus, Hannes | 2026-08-31 |
| Van der Werf, Mark | Linik, Yaron | 1-0 | A51 | Round 3: Van der Werf, Mark - Linik, Yaron | 2026-08-29 |
| Van der Werf, Mark | Delprato, Uberto | 1-0 | A41 | Round 1: Van der Werf, Mark - Delprato, Uberto | 2026-08-27 |
| Van der Werf, Mark | Dishman, Stephen | 1/2-1/2 | C47 | Round 8: Van der Werf, Mark - Dishman, Stephen | 2026-06-09 |
| Van der Werf, Mark | Mannion, Stephen R | 1/2-1/2 | A29 | Round 6: Van der Werf, Mark - Mannion, Stephen R | 2026-06-07 |
| Van der Werf, Mark | Berend, Fred | 0-1 | A29 | Round 4: Van der Werf, Mark - Berend, Fred | 2026-06-05 |
| Van der Werf, Mark | Markowski, Damian | 1-0 | D35 | Round 2: Van der Werf, Mark - Markowski, Damian | 2026-06-03 |
| Van der Werf, Mark | Aravindhan, Achyuth | 1-0 | D32 | Round 9: Van der Werf, Mark - Aravindhan, Achyuth | 2026-05-24 |
| Van der Werf, Mark | Jellema, Pieter | 1/2-1/2 | A91 | Round 11: Van der Werf, Mark - Jellema, Pieter | 2026-05-24 |
| Van der Werf, Mark | Ootes, Lars | 0-1 | B08 | Round 13: Van der Werf, Mark - Ootes, Lars | 2026-05-24 |
| Van der Werf, Mark | Slagboom, Leandro | 1-0 | D35 | Tiebreak partij 1: Van der Werf, Mark - Slagboom, Leandro | 2026-05-24 |
| Van der Werf, Mark | Slagboom, Leandro | 0-1 | A05 | Tiebreak partij 4: Van der Werf, Mark - Slagboom, Leandro | 2026-05-24 |
| Van der Werf, Mark | Terlouw, Wouter | 1/2-1/2 | E45 | Round 3: Van der Werf, Mark - Terlouw, Wouter | 2026-05-23 |
| Van der Werf, Mark | Simenon, Jozef | 1-0 | A40 | Round 5: Van der Werf, Mark - Simenon, Jozef | 2026-05-23 |
| Van der Werf, Mark | Bekker, Stefan | 1/2-1/2 | E41 | Round 7: Van der Werf, Mark - Bekker, Stefan | 2026-05-23 |
| Van der Werf, Mark | Maatman, Nick | 1/2-1/2 | E53 | Round 6: Van der Werf, Mark - Maatman, Nick | 2026-03-28 |
| Van der Werf, Mark | Bosch, Jeroen | 1/2-1/2 | D63 | KNSB competitie 2025/2026 | 2026-03-08 |
| Van der Werf, Mark | Donker, Roel | 1-0 | D10 | Round 5: Van der Werf, Mark - Donker, Roel | 2025-12-26 |
| Van der Werf, Mark | Bugayev, Vladimir | 0-1 | A57 | Round 11: Van der Werf, Mark - Bugayev, Vladimir | 2025-11-01 |
| Van der Werf, Mark | Lacasa Diaz, Josep Anton | 1/2-1/2 | D32 | Round 9: Van der Werf, Mark - Lacasa Diaz, Josep Anton | 2025-10-30 |
| Van der Werf, Mark | Georgiev, Kiril | 1/2-1/2 | E45 | Round 7: Van der Werf, Mark - Georgiev, Kiril | 2025-10-28 |
| Van der Werf, Mark | Bravetti, Antonio | 1-0 | A61 | Round 6: Van der Werf, Mark - Bravetti, Antonio | 2025-10-26 |
| Van der Werf, Mark | Betaneli, Alexander | 1/2-1/2 | D35 | Round 4: Van der Werf, Mark - Betaneli, Alexander | 2025-10-24 |
| Van der Werf, Mark | Cmiel, Thorsten | 1-0 | A57 | Round 2: Van der Werf, Mark - Cmiel, Thorsten | 2025-10-22 |
| Van der Werf, Mark | Oms Pallisse, Josep | 1/2-1/2 | D50 | European individual senior chess championship 2025 - Open 50+, Rabac, Croatia | 2025-10-05 |
| Van der Werf, Mark | Thorhallsson, Throstur | 1/2-1/2 | D50 | European individual senior chess championship 2025 - Open 50+, Rabac, Croatia | 2025-10-03 |
| Van der Werf, Mark | Sielecki, Christof | 1/2-1/2 | E92 | European individual senior chess championship 2025 - Open 50+, Rabac, Croatia | 2025-10-02 |
| Van der Werf, Mark | Farrell, Neil | 1-0 | D31 | European individual senior chess championship 2025 - Open 50+, Rabac, Croatia | 2025-09-28 |
| Van der Werf, Mark | Degraeve, Jean-Marc | 1/2-1/2 | E90 | European individual senior chess championship 2025 - Open 50+, Rabac, Croatia | 2025-09-24 |
| Van der Werf, Mark | Godzwon, Iwo | 1-0 | E47 | Round 1: Van der Werf, Mark - Godzwon, Iwo | 2025-09-20 |
| Van der Werf, Mark | Zhu, Chenwu | 0-1 | E54 | Semi-Finals: Van der Werf, Mark - Zhu, Chenwu | 2025-05-29 |
| Van der Werf, Mark | Lombaers, Peter | 1/2-1/2 | E49 | Finals: Van der Werf, Mark - Lombaers, Peter | 2025-05-29 |
| Van der Werf, Mark | Van Dael, Siem | 1-0 | E92 | Round 8: Van der Werf, Mark - Van Dael, Siem | 2025-04-05 |
| Van der Werf, Mark | Plotkin, Victor | 1/2-1/2 | D35 | WSTCC | 2025-02-25 |
| Van der Werf, Mark | Hjartarson, Johann | 0-1 | E49 | WSTCC | 2025-02-24 |
| Van der Werf, Mark | Olivier, Pierre | 1-0 | D11 | WSTCC | 2025-02-21 |
| Van der Werf, Mark | Beukema, Stefan | 1/2-1/2 | D10 | KNSB Meesterklasse 2024-2025 | 2024-11-23 |
| Van der Werf, Mark | Dhooge, Servaas | 1-0 | E92 | Round 3: Van der Werf, Mark - Dhooge, Servaas | 2024-11-09 |
| Van der Werf, Mark | Sekandar, Kambiz | 1-0 | D25 | Round 2: Van der Werf, Mark - Sekandar, Kambiz | 2024-10-15 |
| Van der Werf, Mark | Warnier, Yanis | 1-0 | E44 | Round 9: Van der Werf, Mark - Warnier, Yanis | 2024-09-15 |
| Van der Werf, Mark | Soares, Luis Francisco Almeida | 1/2-1/2 | A56 | Round 7: Van der Werf, Mark - Soares, Luis Francisco Almeida | 2024-09-13 |
| Van der Werf, Mark | Carnicelli, Valerio | 1-0 | E92 | Round 4: Van der Werf, Mark - Carnicelli, Valerio | 2024-09-11 |
| Van der Werf, Mark | Alsina Leal, Daniel | 1/2-1/2 | D50 | Round 5: Van der Werf, Mark - Alsina Leal, Daniel | 2024-09-11 |
| Van der Werf, Mark | Djuric, Stefan | 1-0 | A50 | Round 2: Van der Werf, Mark - Djuric, Stefan | 2024-09-09 |
| Van der Werf, Mark | Godena, Michele | 1/2-1/2 | D27 | European Senior Team Chess Championship 2024 - Section 50 + | 2024-05-15 |
| Van der Werf, Mark | Denk, Adolf | 1-0 | A44 | European Senior Team Chess Championship 2024 - Section 50 + | 2024-05-12 |
| Van der Werf, Mark | Flear, Glenn C | 1/2-1/2 | D10 | European Senior Team Chess Championship 2024 - Section 50 + | 2024-05-10 |
| Van der Werf, Mark | Zimmermann, Luc | 1-0 | D91 | European Senior Team Chess Championship 2024 - Section 50 + | 2024-05-09 |
| van der Werf, Mark | Pijpers, Arthur | 0-1 | E71 | Tata Steel Chess 2023 Qualifiers | 2023-01-28 |
| van der Werf, Mark | de Winter, Arthur | 1/2-1/2 | D85 | Tata Steel Chess 2023 Qualifiers | 2023-01-27 |
| van der Werf, Mark | Martins, Vinicius Tine | 1-0 | E49 | Tata Steel Chess 2023 Qualifiers | 2023-01-24 |
| van der Werf, Mark | van Dael, Siem | 1/2-1/2 | E92 | Tata Steel Chess 2023 Qualifiers | 2023-01-22 |
| van der Werf, Mark | Lopez, Jasel | 1/2-1/2 | D12 | Tata Steel Chess 2023 Qualifiers | 2023-01-20 |
| Van der Werf, Mark | Bogner, Sebastian | 1/2-1/2 | E54 | ECCC_22 | 2022-10-07 |
| Mark Van Der Werf | Laszlo Krizsany | 1/2-1/2 | A44 | Round 9: Mark Van Der Werf - Laszlo Krizsany | 2021-10-04 |
| Mark Van Der Werf | Fabrizio Bellia | 0-1 | D35 | Round 7: Mark Van Der Werf - Fabrizio Bellia | 2021-10-02 |
| Mark Van Der Werf | Klaus Bischoff | 1/2-1/2 | A40 | Round 6: Mark Van Der Werf - Klaus Bischoff | 2021-10-01 |
| Mark Van Der Werf | Juergen Peist | 1/2-1/2 | D35 | Round 4: Mark Van Der Werf - Juergen Peist | 2021-09-29 |