| Apr 11, 2026 | Mazajchik | 0–1 | Maatman | Round 9: Mazajchik, Tim - Maatman, Nick | Caro-Kann Defense: Advance Variation | |
| Mar 28, 2026 | Van der Werf | ½–½ | Maatman | Round 6: Van der Werf, Mark - Maatman, Nick | Nimzo-Indian Defense: Normal Variation, Gligoric System | |
| Mar 7, 2026 | Hommerson | 0–1 | Maatman | Round 8: Hommerson, Paul - Maatman, Nick | Indian Defense: Knights Variation | |
| Feb 7, 2026 | Maatman | ½–½ | Bok | Round 7: Maatman, Nick - Bok, Benjamin | Sicilian Defense: Najdorf Variation, Zagreb Variation | |
| Dec 28, 2025 | Maatman | 0–1 | Advaitt Srikant Koduri | Round 7: Maatman, Nick - Advaitt Srikant Koduri | Caro-Kann Defense: Two Knights Attack, Mindeno Variation | |
| Dec 26, 2025 | Filindash | 1–0 | Maatman | Round 6: Filindash, Nikita - Maatman, Nick | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Dec 26, 2025 | Schoppen | 1–0 | Maatman | Round 5: Schoppen, Casper - Maatman, Nick | English Opening: Symmetrical Variation, Four Knights Variation | |
| Dec 24, 2025 | Maatman | 1–0 | Zheng | Round 4: Maatman, Nick - Zheng, Harry Z | Ruy Lopez: Closed, Keres Defense | |
| Dec 23, 2025 | Sanjay Narayanan P S | 1–0 | Maatman | Round 3: Sanjay Narayanan P S - Maatman, Nick | Caro-Kann Defense: Advance Variation, Bayonet Attack | |
| Dec 22, 2025 | Maatman | ½–½ | Wempe | Round 2: Maatman, Nick - Wempe, Joost | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Dec 21, 2025 | De Jong | 0–1 | Maatman | Round 1: De Jong, Lode - Maatman, Nick | Catalan Opening | |
| Nov 22, 2025 | Maatman | ½–½ | Maerevoet | Round 4: Maatman, Nick - Maerevoet, Sim | King's Indian Attack | |
| Nov 7, 2025 | Maatman | ½–½ | Burg | KNSB competitie 2025/2026 | Petrov's Defense: Millennium Attack | |
| Oct 4, 2025 | Maatman | 0–1 | Baselmans | Round 2: Maatman, Nick - Baselmans, Luuk | Caro-Kann Defense: Exchange Variation | |
| Jul 30, 2025 | Maatman | 0–1 | Elgersma | Round 9: Maatman, Nick - Elgersma, Onno | Queen's Indian Defense: Fianchetto Variation, Kramnik Variation | |
| Jul 28, 2025 | Leenhouts | 0–1 | Maatman | Round 7: Leenhouts, Koen - Maatman, Nick | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Jul 27, 2025 | Maatman | ½–½ | Flom | Round 6: Maatman, Nick - Flom, Gabriel | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jul 26, 2025 | Kumar | 0–1 | Maatman | Round 5: Kumar, Prajit Sai - Maatman, Nick | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jul 25, 2025 | Maatman | 1–0 | Lutze | Round 4: Maatman, Nick - Lutze, Max | King's Indian Defense: Semi-Averbakh System | |
| Jul 24, 2025 | Ten Dam | 0–1 | Maatman | Round 3: Ten Dam, Bram - Maatman, Nick | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jul 23, 2025 | Maatman | 1–0 | Wouters | Round 2: Maatman, Nick - Wouters, Casper | King's Indian Defense: Petrosian Variation, Stein Defense | |
| Jul 22, 2025 | Dordevic | 1–0 | Maatman | Round 1: Dordevic, Tom - Maatman, Nick | Bogo-Indian Defense: Retreat Variation | |
| Jul 16, 2025 | Hausrath | ½–½ | Maatman | Round 8: Hausrath, Daniel - Maatman, Nick | King's Indian Attack | |
| May 13, 2025 | Maatman | ½–½ | Fridman | KNSB Meesterklasse 2024-2025 | French Defense: Advance Variation, Euwe Variation | |
| Apr 5, 2025 | Kollen | 1–0 | Maatman | Round 8: Kollen, Zyon - Maatman, Nick | Sicilian Defense: Najdorf Variation, English Attack | |
| Mar 8, 2025 | Maatman | 1–0 | Willemze | Round 7: Maatman, Nick - Willemze, Thomas | Caro-Kann Defense: Exchange Variation | |
| Feb 8, 2025 | Maatman | ½–½ | Grutter | Round 6: Maatman, Nick - Grutter, Tim | King's Indian Attack: Symmetrical Defense | |
| Dec 14, 2024 | Baselmans | 0–1 | Maatman | KNSB | Sicilian Defense: Closed | |
| Nov 23, 2024 | Maatman | ½–½ | Leenhouts | KNSB Competitie, ronde 4 | English Opening: Symmetrical Variation, Three Knights Variation | |
| Sep 21, 2024 | Maatman | ½–½ | Van Gisbergen | KNSB Meesterklasse 2024-2025 | Bogo-Indian Defense: Retreat Variation | |
| Jul 29, 2024 | Hausrath | ½–½ | Maatman | Round 6: Hausrath, Daniel - Maatman, Nick | Zukertort Opening: Nimzo-Larsen Variation | |
| Jul 27, 2024 | Maatman | 1–0 | Zwirs | Round 5: Maatman, Nick - Zwirs, Jasper | Semi-Slav Defense | |
| Jul 26, 2024 | Shakhverdian | 0–1 | Maatman | Round 4: Shakhverdian, William - Maatman, Nick | Indian Defense: Przepiorka Variation | |
| Jul 25, 2024 | Maatman | ½–½ | Labruyere | Round 3: Maatman, Nick - Labruyere, Roger | Sicilian Defense: Najdorf Variation, English Attack | |
| Jul 24, 2024 | Aarav Sarbalia | ½–½ | Maatman | Round 2: Aarav Sarbalia - Maatman, Nick | Nimzo-Larsen Attack: Classical Variation | |
| Jul 23, 2024 | Maatman | 1–0 | Gortemaker | Round 1: Maatman, Nick - Gortemaker, Lucas | English Opening: King's English Variation | |
| Jun 23, 2024 | Van Batenburg | ½–½ | Maatman | Round 6: Van Batenburg, Mees - Maatman, Nick | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Jun 23, 2024 | Grutter | ½–½ | Maatman | Round 5: Grutter, Tim - Maatman, Nick | Sicilian Defense: Richter-Rauzer Variation, Modern Variation | |
| Jun 22, 2024 | Maatman | 1–0 | Labruyere | Round 3: Maatman, Nick - Labruyere, Roger | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 21, 2024 | Coenen | 0–1 | Maatman | Round 2: Coenen, Eduard - Maatman, Nick | Queen's Indian Defense: Fianchetto Variation, Check Variation, Intermezzo Line | |
| Jun 21, 2024 | Maatman | ½–½ | Vrolijk | Round 4: Maatman, Nick - Vrolijk, Liam | English Opening: King's English Variation, Two Knights Variation, Keres Variation | |
| Jun 21, 2024 | Maatman | 1–0 | Markus | Round 1: Maatman, Nick - Markus, John Raymond | Queen's Pawn Game: Modern Defense | |
| Dec 30, 2024 | Narayanan S L | ½–½ | Maatman | Round 9: Narayanan S L - Maatman, Nick | Tarrasch Defense: Dubov Tarrasch | |
| Dec 29, 2024 | Elgersma | 0–1 | Maatman | Round 8: Elgersma, Onno - Maatman, Nick | Petrov's Defense: Nimzowitsch Attack | |
| Dec 28, 2024 | Maatman | ½–½ | Pham | Round 7: Maatman, Nick - Pham, Khoi | Semi-Slav Defense: Marshall Gambit, Main Line | |
| Dec 27, 2024 | Beerdsen | ½–½ | Maatman | Round 6: Beerdsen, Thomas - Maatman, Nick | Petrov's Defense: Classical Attack, Chigorin Variation | |
| Dec 26, 2024 | Maatman | 1–0 | Kazakouski | Round 5: Maatman, Nick - Kazakouski, Valery | Sicilian Defense: Najdorf Variation, English Attack | |
| Dec 24, 2024 | Maatman | 1–0 | Van Foreest | Round 4: Maatman, Nick - Van Foreest, Machteld | Zukertort Opening | |
| Dec 23, 2024 | Weber | ½–½ | Maatman | Round 3: Weber, Samuel - Maatman, Nick | Zukertort Opening | |
| Dec 22, 2024 | Maatman | ½–½ | Van Roon | Round 2: Maatman, Nick - Van Roon, Sjoerd | Semi-Slav Defense: Quiet Variation | |
| Dec 21, 2024 | Keuning | 0–1 | Maatman | Round 1: Keuning, Selwin - Maatman, Nick | Sicilian Defense: Alapin Variation | |
| Nov 9, 2024 | Ten Hertog | 1–0 | Maatman | Round 3: Ten Hertog, Hugo - Maatman, Nick | Zukertort Opening: Sicilian Invitation | |
| Nov 2, 2024 | Maatman | ½–½ | Kovchan | Round 9: Maatman, Nick - Kovchan, Alexander | English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation | |
| Nov 1, 2024 | Boeren | 0–1 | Maatman | Round 8: Boeren, Jurriaan - Maatman, Nick | Sicilian Defense: Najdorf Variation, Freak Attack | |
| Oct 31, 2024 | Maris | 1–0 | Maatman | Round 7: Maris, Ivo - Maatman, Nick | Hungarian Opening: Sicilian Invitation | |
| Oct 30, 2024 | Maatman | 1–0 | Zecha | Round 6: Maatman, Nick - Zecha, Oscar | King's Indian Attack: Spassky Variation | |
| Oct 29, 2024 | Maatman | ½–½ | Plukkel | Round 4: Maatman, Nick - Plukkel, Sjoerd | Sicilian Defense: Richter-Rauzer Variation, Classical Variation | |
| Oct 28, 2024 | Emans | 0–1 | Maatman | Round 3: Emans, Job - Maatman, Nick | Nimzo-Indian Defense: Normal Variation | |
| Oct 27, 2024 | Maatman | ½–½ | Ten Dam | Round 2: Maatman, Nick - Ten Dam, Bram | Sicilian Defense: Dragon Variation, Fianchetto Variation | |
| Oct 26, 2024 | Goudriaan | ½–½ | Maatman | Round 1: Goudriaan, Rafael - Maatman, Nick | Sicilian Defense: Alapin Variation | |
| Oct 12, 2024 | Rijnaarts | 0–1 | Maatman | Round 2: Rijnaarts, Sjef - Maatman, Nick | Sicilian Defense: Richter-Rauzer Variation, Classical Variation | |
| Aug 1, 2024 | Maatman | ½–½ | De Winter | Round 9: Maatman, Nick - De Winter, Arthur | Queen's Gambit Declined | |
| Jul 31, 2024 | Maatman | 1–0 | Slagboom | Round 8: Maatman, Nick - Slagboom, Leandro | Queen's Gambit Declined | |
| Jul 30, 2024 | Beerdsen | 1–0 | Maatman | Round 7: Beerdsen, Thomas - Maatman, Nick | Sicilian Defense: Richter-Rauzer Variation, Dragon Variation | |
| Oct 28, 2023 | Krishnan | 0–1 | Maatman | Hoogeveen Open 2023 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Oct 27, 2023 | Maatman | 1–0 | Paltrinieri | Hoogeveen Open 2023 | Modern Defense | |
| Oct 26, 2023 | Maatman | 1–0 | Kett | Hoogeveen Open 2023 | Philidor Defense: Lion Variation | |
| Oct 25, 2023 | Maatman | ½–½ | Van Rootselaar | Hoogeveen Open 2023 | Sicilian Defense: Najdorf Variation, Zagreb Variation | |
| Oct 25, 2023 | Duchene | 0–1 | Maatman | Hoogeveen Open 2023 | Bogo-Indian Defense: Retreat Variation | |
| Oct 24, 2023 | Elgersma | 1–0 | Maatman | Hoogeveen Open 2023 | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Oct 23, 2023 | Maatman | 0–1 | De Boer | Hoogeveen Open 2023 | Queen's Gambit Declined: Semi-Tarrasch Defense, Exchange Variation | |
| Oct 22, 2023 | Swati | ½–½ | Maatman | Hoogeveen Open 2023 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Oct 21, 2023 | Maatman | 1–0 | Arnold | Hoogeveen Open 2023 | Zukertort Opening | |
| May 28, 2023 | Maatman | * | Fedorchuk | Limburg Open | ? | |
| May 28, 2023 | Schmitzer | * | Maatman | Limburg Open | ? | |
| May 27, 2023 | Maatman | ½–½ | Fedorchuk | Limburg Open | Nimzo-Indian Defense: Classical Variation | |
| May 27, 2023 | Ernst | 1–0 | Maatman | Limburg Open | Bogo-Indian Defense: Retreat Variation | |