| Sep 2, 2023 | Alex Garrido Outón | 1–0 | Nico Zwirs | Round 9 (Top boards): Alex Garrido Outón - Nico Zwirs | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| Sep 1, 2023 | Nico Zwirs | 1–0 | Guy Gov | Round 8 (Top boards): Nico Zwirs - Guy Gov | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Aug 31, 2023 | Sohum Lohia | ½–½ | Nico Zwirs | Round 7 (Top boards): Sohum Lohia - Nico Zwirs | Sicilian Defense: Moscow Variation | |
| Aug 30, 2023 | Nico Zwirs | ½–½ | Victor Mikhalevski | Round 6 (Top boards): Nico Zwirs - Victor Mikhalevski | Sicilian Defense: Najdorf Variation, English Attack | |
| Aug 29, 2023 | Manuel Perez Candelario | ½–½ | Nico Zwirs | Maia Open | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Aug 28, 2023 | Nico Zwirs | ½–½ | Luca Jr Moroni | Maia Open | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Aug 27, 2023 | Natalia Zhukova | 0–1 | Nico Zwirs | Maia Chess Open 2023 (25/08 - 02/09) | Catalan Opening: Open Defense | |
| Aug 26, 2023 | Nico Zwirs | 1–0 | Samuel Malka | Maia Chess Open 2023 (25/08 - 02/09) | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Aug 25, 2023 | Joao Carlos Dos Santos Ferreira Cordeiro | 0–1 | Nico Zwirs | new tournament description | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Aug 3, 2023 | Nico Zwirs | ½–½ | Sankalp Gupta | Round 9: Nico Zwirs - Sankalp Gupta | Four Knights Game: Scotch Variation, Schmid Defense | |
| Aug 2, 2023 | Arthur De Winter | 0–1 | Nico Zwirs | Round 8: Arthur De Winter - Nico Zwirs | Ruy Lopez: Closed, Martinez Variation | |
| Aug 1, 2023 | Nico Zwirs | 0–1 | Prraneeth Vuppala | Round 7: Nico Zwirs - Prraneeth Vuppala | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Jul 31, 2023 | Willy Hendriks | 0–1 | Nico Zwirs | Round 6: Willy Hendriks - Nico Zwirs | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jul 29, 2023 | Nico Zwirs | 1–0 | Rick Duijker | Round 5: Nico Zwirs - Rick Duijker | French Defense: Tarrasch Variation, Pawn Center Variation | |
| Jul 28, 2023 | Eelke De Boer | ½–½ | Nico Zwirs | Round 4: Eelke De Boer - Nico Zwirs | Catalan Opening: Open Defense | |
| Jul 27, 2023 | Nico Zwirs | 1–0 | Martijn Otten | Round 3: Nico Zwirs - Martijn Otten | English Opening: Caro-Kann Defensive System | |
| Jul 26, 2023 | Hendrik Decrop | 1–0 | Nico Zwirs | Round 2: Hendrik Decrop - Nico Zwirs | Sicilian Defense: Sozin Attack, Main Line | |
| Jul 25, 2023 | Nico Zwirs | 1–0 | Thomas Kools | Round 1: Nico Zwirs - Thomas Kools | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Jul 23, 2023 | Merijn Van Delft | ½–½ | Nico Zwirs | Round 9: Merijn Van Delft - Nico Zwirs | King's Indian Attack | |
| Jul 21, 2023 | Nico Zwirs | ½–½ | Li Riemersma | Round 8: Nico Zwirs - Li Riemersma | Italian Game: Classical Variation, Greco Gambit | |
| Jul 21, 2023 | Albert Blees | ½–½ | Nico Zwirs | Round 7: Albert Blees - Nico Zwirs | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jul 20, 2023 | Nico Zwirs | 1–0 | Onno Elgersma | Round 6: Nico Zwirs - Onno Elgersma | Caro-Kann Defense: Exchange Variation | |
| Jul 19, 2023 | Pieter Hopman | ½–½ | Nico Zwirs | Round 5: Pieter Hopman - Nico Zwirs | Queen's Gambit Declined: Traditional Variation | |
| Jul 18, 2023 | Nico Zwirs | ½–½ | Bob Beeke | Round 4: Nico Zwirs - Bob Beeke | Four Knights Game: Scotch Variation, Krause Gambit, Leonhardt Defense | |
| Jul 17, 2023 | Tom De Jong | 0–1 | Nico Zwirs | Round 3: Tom De Jong - Nico Zwirs | Sicilian Defense: Delayed Alapin Variation | |
| Jul 16, 2023 | Nico Zwirs | 1–0 | Renzo Finkenflugel | Round 2: Nico Zwirs - Renzo Finkenflugel | Vienna Game: Paulsen Variation | |
| Jul 15, 2023 | Floris Golbach | 0–1 | Nico Zwirs | Round 1: Floris Golbach - Nico Zwirs | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 25, 2023 | Nico Zwirs | 0–1 | Eline Roebers | HSG Open 2023 A | French Defense: Exchange Variation | |
| Jun 25, 2023 | Nico Zwirs | 1–0 | Bjorn Thorfinnsson | Round 5: Nico Zwirs - Bjorn Thorfinnsson | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jun 24, 2023 | Max Warmerdam | 1–0 | Nico Zwirs | Round 4: Max Warmerdam - Nico Zwirs | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 24, 2023 | Roger Labruyere | 0–1 | Nico Zwirs | Round 3: Roger Labruyere - Nico Zwirs | Sicilian Defense: Moscow Variation, Sokolsky Variation | |
| Jun 23, 2023 | Nico Zwirs | 1–0 | Jan Roebers | Round 2: Nico Zwirs - Jan Roebers | King's Indian Defense: Makogonov Variation | |
| Jun 23, 2023 | Arnd Los | 0–1 | Nico Zwirs | Round 1: Arnd Los - Nico Zwirs | English Opening: Agincourt Defense | |
| Feb 24, 2023 | Nico Zwirs | 0–1 | Harsha Bharathakoti | Round 9: Nico Zwirs - Harsha Bharathakoti | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Feb 22, 2023 | Nico Zwirs | ½–½ | Viani Antonio Dcunha | Round 7: Nico Zwirs - Viani Antonio Dcunha | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Feb 22, 2023 | S. Nitin | ½–½ | Nico Zwirs | Round 6: S. Nitin - Nico Zwirs | Sicilian Defense: Moscow Variation, Main Line | |
| Feb 21, 2023 | Nico Zwirs | 1–0 | Etienne Bauduin | Round 5: Nico Zwirs - Etienne Bauduin | Italian Game: Paris Defense | |
| Feb 20, 2023 | Nico Zwirs | 0–1 | Rao Sharan | Round 3: Nico Zwirs - Rao Sharan | Bogo-Indian Defense: Retreat Variation | |
| Feb 19, 2023 | Nicolo Napoli | 0–1 | Nico Zwirs | Round 2: Nicolo Napoli - Nico Zwirs | Sicilian Defense: Modern Variations | |
| Feb 19, 2023 | Nico Zwirs | 1–0 | Julian Garrigue | Round 1: Nico Zwirs - Julian Garrigue | Petrov's Defense: Modern Attack, Center Variation | |
| Dec 30, 2022 | Nico Zwirs | ½–½ | Alexander Kovchan | Round 9: Nico Zwirs - Alexander Kovchan | Sicilian Defense: Najdorf Variation | |
| Dec 29, 2022 | Ellen Wang | 0–1 | Nico Zwirs | Round 8: Ellen Wang - Nico Zwirs | Blumenfeld Countergambit | |
| Dec 28, 2022 | Hagen Poetsch | 1–0 | Nico Zwirs | Round 7: Hagen Poetsch - Nico Zwirs | Sicilian Defense: Najdorf Variation | |
| Dec 27, 2022 | Nico Zwirs | ½–½ | Pranav Anand | Round 6: Nico Zwirs - Pranav Anand | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Dec 26, 2022 | Nico Zwirs | 1–0 | Arthur De Winter | Round 5: Nico Zwirs - Arthur De Winter | King's Indian Defense: Kramer Variation | |
| Dec 24, 2022 | Rohan Pal | 0–1 | Nico Zwirs | Round 4: Rohan Pal - Nico Zwirs | Sicilian Defense: Keres Variation | |
| Dec 23, 2022 | Nico Zwirs | ½–½ | Midas Ratsma | Round 3: Nico Zwirs - Midas Ratsma | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Dec 22, 2022 | Vjekoslav Nemec | ½–½ | Nico Zwirs | Round 2: Vjekoslav Nemec - Nico Zwirs | Sicilian Defense | |
| Dec 21, 2022 | Nico Zwirs | 1–0 | Cocoro Matsumura | Round 1: Nico Zwirs - Cocoro Matsumura | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Oct 20, 2022 | Nico Zwirs | 1–0 | Rene Duchene | Round 7: Nico Zwirs - Rene Duchene | ? | |
| Oct 19, 2022 | Evgeny Romanov | 1–0 | Nico Zwirs | Round 6: Evgeny Romanov - Nico Zwirs | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Oct 19, 2022 | Nico Zwirs | 1–0 | R. Ashwath | Round 5: Nico Zwirs - R. Ashwath | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Oct 18, 2022 | Paul Hummel | 0–1 | Nico Zwirs | Round 4: Paul Hummel - Nico Zwirs | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Oct 17, 2022 | Nico Zwirs | 1–0 | Machteld Van Foreest | Round 3: Nico Zwirs - Machteld Van Foreest | Sicilian Defense: Four Knights Variation | |
| Oct 16, 2022 | Roger Labruyere | ½–½ | Nico Zwirs | Round 2: Roger Labruyere - Nico Zwirs | Sicilian Defense: Moscow Variation, Main Line | |
| Oct 15, 2022 | Nico Zwirs | 1–0 | Achyuth Aravindhan | Round 1: Nico Zwirs - Achyuth Aravindhan | Indian Defense: Tartakower Attack | |
| Jul 24, 2022 | Nico Zwirs | 1–0 | Henk Van der Poel | Round 7: Nico Zwirs - Henk Van der Poel | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Jul 23, 2022 | Nico Zwirs | 1–0 | Paul-Peter Theulings | Round 6: Nico Zwirs - Paul-Peter Theulings | ? | |
| Jul 22, 2022 | Vincent Blom | 1–0 | Nico Zwirs | Round 5: Vincent Blom - Nico Zwirs | Queen's Gambit Declined: Three Knights, Vienna Variation | |
| Jul 21, 2022 | Nico Zwirs | 1–0 | Rogier Van Arkel | Round 4: Nico Zwirs - Rogier Van Arkel | Scandinavian Defense: Portuguese Gambit, Elbow Variation | |
| Jul 20, 2022 | Rene Duchene | ½–½ | Nico Zwirs | Round 3: Rene Duchene - Nico Zwirs | Semi-Slav Defense: Quiet Variation | |
| Jul 19, 2022 | Nico Zwirs | 1–0 | Alex Bullen | Round 2: Nico Zwirs - Alex Bullen | English Opening: Agincourt Defense | |
| Jul 18, 2022 | Florian Bous | 0–1 | Nico Zwirs | Round 1: Florian Bous - Nico Zwirs | Queen's Gambit Declined: Barmen Variation | |
| Feb 18, 2022 | Nico Zwirs | ½–½ | Sergey A. Fedorchuk | Round 9: Nico Zwirs - Sergey A. Fedorchuk | Sicilian Defense: Taimanov Variation | |
| Feb 17, 2022 | Nico Zwirs | * | Thomas Beerdsen | Round 8: Nico Zwirs - Thomas Beerdsen | Queen's Indian Defense: Fianchetto Variation, Check Variation, Modern Line | |
| Feb 16, 2022 | Rayane Laangry | 0–1 | Nico Zwirs | Round 7: Rayane Laangry - Nico Zwirs | Sicilian Defense: Godiva Variation | |
| Feb 16, 2022 | Nico Zwirs | ½–½ | Francesco Sonis | Round 6: Nico Zwirs - Francesco Sonis | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Oct 23, 2021 | Nico Zwirs | ½–½ | Roeland Pruijssers | Round 3.2: Nico Zwirs - Roeland Pruijssers | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Oct 21, 2021 | Roeland Pruijssers | 1–0 | Nico Zwirs | Round 3.1: Roeland Pruijssers - Nico Zwirs | Sicilian Defense: Closed | |
| Oct 20, 2021 | Sipke Ernst | ½–½ | Nico Zwirs | Tiebreak 2: Sipke Ernst - Nico Zwirs | Queen's Gambit Declined: Barmen Variation | |
| Oct 19, 2021 | Nico Zwirs | ½–½ | Sipke Ernst | Round 2.2: Nico Zwirs - Sipke Ernst | French Defense: Winawer Variation, Retreat Variation, Armenian Line | |
| Oct 18, 2021 | Sipke Ernst | ½–½ | Nico Zwirs | Round 2.1: Sipke Ernst - Nico Zwirs | Queen's Gambit Declined: Three Knights, Vienna Variation | |
| Oct 16, 2021 | Nico Zwirs | 1–0 | Joost Hoogendoorn | Round 1.2: Nico Zwirs - Joost Hoogendoorn | Scandinavian Defense: Main Line | |
| Oct 15, 2021 | Joost Hoogendoorn | 0–1 | Nico Zwirs | Round 1.1: Joost Hoogendoorn - Nico Zwirs | Sicilian Defense: Modern Variations | |