Niels Ondersteijn
Country
NED
Birth Year
1984
Gender
M
Title
International Master
FIDE ID
1011162
FIDE rating history
View rating lists
Available Games
Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-10-04 (UTC).
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-03 | Dutch Meesterklasse 2026-2027 | Netherlands | 2.2 | Ondersteijn, Niels | Ernst, Sipke | 0-1 | 53 | Open 🎥 |
| 2 | 2026-09-19 | Dutch League 2026-27 | Netherlands NED | 1.5 | Ondersteijn,N | Klaska,Philipp Leon | 1/2-1/2 | 63 | Open |
| 3 | 2026-09-19 | Dutch Meesterklasse 2026-2027 | Netherlands | 1.5 | Ondersteijn, Niels | Klaska, Philipp Leon | 1/2-1/2 | 63 | Open 🎥 |
| 4 | 2026-05-17 | 51st OKU 2026 | Utrecht NED | 5.9 | Thijssen,Freek | Ondersteijn,N | 1-0 | 53 | Open |
| 5 | 2026-05-16 | 51st OKU 2026 | Utrecht NED | 4.1 | Ondersteijn,N | Grooten,H | 1/2-1/2 | 69 | Open |
| 6 | 2026-05-15 | 51st OKU 2026 | Utrecht NED | 1.6 | Guillaumond,Matthieu | Ondersteijn,N | 1-0 | 27 | Open |
| 7 | 2026-05-14 | TCh-NED Cup 2026 | Amsterdam NED | 2.2 | Bosch,Je | Ondersteijn,N | 1-0 | 32 | Open |
| 8 | 2026-05-14 | TCh-NED Cup 2026 | Amsterdam NED | 2.1 | Ondersteijn,N | Bosch,Je | 0-1 | 68 | Open |
| 9 | 2026-05-14 | TCh-NED Cup 2026 | Amsterdam NED | 1.1 | Freeke,M | Ondersteijn,N | 0-1 | 32 | Open |
| 10 | 2026-04-11 | Dutch League 2025-26 | Netherlands NED | 9.2 | Ondersteijn,N | Baselmans,Sam | 1-0 | 60 | Open |
| 11 | 2026-04-06 | grenke Chess Open 2026 | Karlsruhe GER | 8.2 | Ondersteijn,N | Eugene,Floryan | 0-1 | 56 | Open |
| 12 | 2026-04-06 | grenke Chess Open 2026 | Karlsruhe GER | 9.54 | Chittka,Julius | Ondersteijn,N | 0-1 | 57 | Open |
| 13 | 2026-04-05 | grenke Chess Open 2026 | Karlsruhe GER | 7.47 | Fuhrmann,Bahne | Ondersteijn,N | 0-1 | 69 | Open |
| 14 | 2026-04-05 | grenke Chess Open 2026 | Karlsruhe GER | 6.72 | Ondersteijn,N | Kupriyanov,Daniel | 1-0 | 64 | Open |
| 15 | 2026-04-04 | grenke Chess Open 2026 | Karlsruhe GER | 5.7 | Eljanov,P | Ondersteijn,N | 1-0 | 40 | Open |
| 16 | 2026-04-04 | grenke Chess Open 2026 | Karlsruhe GER | 4.66 | Ondersteijn,N | Kaufeld,J | 1-0 | 69 | Open |
| 17 | 2026-04-03 | grenke Chess Open 2026 | Karlsruhe GER | 2.8 | Ondersteijn,N | Bruns,Kai-Christian | 1-0 | 56 | Open |
| 18 | 2026-04-03 | grenke Chess Open 2026 | Karlsruhe GER | 3.55 | Le Goff,R | Ondersteijn,N | 1/2-1/2 | 48 | Open |
| 19 | 2026-03-07 | Dutch League 2025-26 | Netherlands NED | 8.4 | Van Foreest,Lucas | Ondersteijn,N | 1-0 | 22 | Open |
| 20 | 2026-02-07 | Dutch League 2025-26 | Netherlands NED | 7.6 | Ondersteijn,N | Tondivar,B | 1/2-1/2 | 61 | Open |
| 21 | 2025-12-13 | Dutch League 2025-26 | Netherlands NED | 5.8 | Grooten,Tommy | Ondersteijn,N | 1-0 | 45 | Open |
| 22 | 2025-11-22 | Dutch League 2025-26 | Netherlands NED | 4.1 | Niels Ondersteijn | Dharma Tjiam | 1-0 | 33 | Open |
| 23 | 2025-11-01 | Dutch League 2025-26 | Netherlands NED | 3.6 | Tim Grutter | Niels Ondersteijn | 1/2-1/2 | 55 | Open |
| 24 | 2025-10-25 | 40th ECC Open 2025 | Rhodes GRE | 7.1 | Bayarjavkhlan Delgerdalai | Niels Ondersteijn | 1/2-1/2 | 77 | Open |
| 25 | 2025-10-24 | 40th ECC Open 2025 | Rhodes GRE | 6.1 | Niels Ondersteijn | Gil Barak | 1-0 | 38 | Open |
| 26 | 2025-10-22 | 40th ECC Open 2025 | Rhodes GRE | 4.148 | Niels Ondersteijn | Tom Wedberg | 0-1 | 39 | Open |
| 27 | 2025-10-21 | 40th ECC Open 2025 | Rhodes GRE | 3.88 | Khagan Ahmad | Niels Ondersteijn | 1/2-1/2 | 54 | Open |
| 28 | 2025-09-20 | Dutch League 2025-26 | Netherlands NED | 1.7 | Niels Ondersteijn | Martin Martens | 1-0 | 53 | Open |
| 29 | 2025-05-10 | Dutch League 2024-25 | Netherlands NED | 9.2 | Helmut Froeyman | Niels Ondersteijn | 1/2-1/2 | 25 | Open |
| 30 | 2025-04-21 | grenke Chess Open 2025 | Karlsruhe GER | 8.28 | Niels Ondersteijn | Bojan Maksimovic | 0-1 | 46 | Open |
| 31 | 2025-04-20 | grenke Chess Open 2025 | Karlsruhe GER | 7.17 | Eytan Rozen | Niels Ondersteijn | 1-0 | 33 | Open |
| 32 | 2025-04-20 | grenke Chess Open 2025 | Karlsruhe GER | 6.23 | Niels Ondersteijn | Dragos Ceres | 1-0 | 65 | Open |
| 33 | 2025-04-19 | grenke Chess Open 2025 | Karlsruhe GER | 4.21 | Niels Ondersteijn | S Aswath | 0-1 | 37 | Open |
| 34 | 2025-04-05 | Dutch League 2024-25 | Netherlands NED | 8.6 | Niels Ondersteijn | Glen De Schampheleire | 1-0 | 62 | Open |
| 35 | 2025-03-08 | Dutch League 2024-25 | Netherlands NED | 7.4 | Oleg Korneev | Niels Ondersteijn | 1/2-1/2 | 39 | Open |
| 36 | 2025-02-08 | Dutch League 2024-25 | Netherlands NED | 6.7 | Niels Ondersteijn | Thomas Beerdsen | 1/2-1/2 | 33 | Open |
| 37 | 2024-12-14 | Dutch League 2024-25 | Netherlands NED | 5.3 | Kai Spriestersbach | Niels Ondersteijn | 1/2-1/2 | 65 | Open |
| 38 | 2024-11-23 | Dutch League 2024-25 | Netherlands NED | 4.7 | Niels Ondersteijn | Lennert Lenaerts | 1-0 | 34 | Open |
| 39 | 2024-11-09 | Dutch League 2024-25 | Netherlands NED | 3.5 | Leandro Slagboom | Niels Ondersteijn | 1-0 | 18 | Open |
| 40 | 2024-10-26 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 7.22 | Cemil Gulbas | Niels Ondersteijn | 1-0 | 29 | Open |
| 41 | 2024-10-25 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 6.15 | Niels Ondersteijn | Filip Boe Olsen | 0-1 | 33 | Open |
| 42 | 2024-10-24 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 5.22 | Niels Ondersteijn | Panagiotis Christodoulou | 0-1 | 34 | Open |
| 43 | 2024-10-23 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 4.12 | Mikhail Bryakin | Niels Ondersteijn | 0-1 | 38 | Open |
| 44 | 2024-10-22 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 3.26 | Niels Ondersteijn | Tom Bus | 1-0 | 36 | Open |
| 45 | 2024-10-21 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 2.15 | Tomas Laurusas | Niels Ondersteijn | 1/2-1/2 | 58 | Open |
| 46 | 2024-10-20 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 1.36 | Niels Ondersteijn | Rory Quinn | 1-0 | 25 | Open |
| 47 | 2024-10-12 | Dutch League 2024-25 | Netherlands NED | 2.9 | Niels Ondersteijn | Michiel Bosman | 1-0 | 58 | Open |
| 48 | 2024-09-21 | Dutch League 2024-25 | Netherlands NED | 1.8 | Niels Ondersteijn | Onno Elgersma | 1-0 | 52 | Open |
| 49 | 2024-04-20 | Dutch League 2023-24 | Netherlands NED | 9.8 | Niels Ondersteijn | Geert Van der Stricht | 1-0 | 48 | Open |
| 50 | 2024-03-23 | Dutch League 2023-24 | Netherlands NED | 8.8 | Stan Van Gisbergen | Niels Ondersteijn | 0-1 | 27 | Open |
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