| Apr 11, 2026 | Gijswijt | ½–½ | Van Foreest | Round 9: Gijswijt, Bart - Van Foreest, Machteld | Semi-Slav Defense: Stoltz Variation | |
| Mar 28, 2026 | Van Beek | ½–½ | Gijswijt | Round 6: Van Beek, Lucien - Gijswijt, Bart | Nimzo-Indian Defense: Normal Variation | |
| Mar 7, 2026 | Braun | 1–0 | Gijswijt | Round 8: Braun, Christian - Gijswijt, Bart | King's Indian Attack: Sicilian Variation | |
| Feb 7, 2026 | Gijswijt | 0–1 | Ten Hertog | Round 7: Gijswijt, Bart - Ten Hertog, Hugo | Queen's Pawn Game: Modern Defense | |
| Dec 26, 2025 | Gijswijt | ½–½ | Pijpers | Round 5: Gijswijt, Bart - Pijpers, Arthur | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Nov 22, 2025 | Gijswijt | 0–1 | Schoppen | Round 4: Gijswijt, Bart - Schoppen, Casper | King's Indian Defense: Orthodox Variation, Bayonet Attack | |
| Nov 7, 2025 | Gijswijt | 1–0 | Tabak | KNSB competitie 2025/2026 | Semi-Slav Defense: Stoltz Variation | |
| Oct 23, 2025 | Gijswijt | 0–1 | Smeets | Round 5: Gijswijt, Bart - Smeets, Jan | Semi-Slav Defense: Stoltz Variation | |
| Oct 19, 2025 | Gijswijt | 0–1 | Mamedyarov | Round 1: Gijswijt, Bart - Mamedyarov, Shakhriyar | Queen's Gambit Accepted | |
| Oct 4, 2025 | Margarido | ½–½ | Gijswijt | Round 2: Margarido, Jose Miguel Teixeira - Gijswijt, Bart | English Opening: Neo-Catalan | |
| Sep 22, 2025 | Beukema | ½–½ | Gijswijt | KNSB competitie 2025/2026 | English Opening: Agincourt Defense | |
| May 29, 2025 | Robin Swinkels | 1–0 | Gijswijt | Semi-Finals | Tiebreaks: Robin Swinkels - Gijswijt, Bart | Catalan Opening: Open Defense | |
| May 29, 2025 | Kroeze | 0–1 | Gijswijt | Finals: Kroeze, Frank - Gijswijt, Bart | Caro-Kann Defense: Two Knights Attack, Mindeno Variation | |
| May 29, 2025 | Gijswijt | ½–½ | Robin Swinkels | Semi-Finals: Gijswijt, Bart - Robin Swinkels | Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense | |
