| Apr 11, 2026 | Raats | 0–1 | Wemmers | Round 9: Raats, Joppe - Wemmers, Xander | Sicilian Defense: Richter-Rauzer Variation, Traditional Variation | |
| Mar 28, 2026 | Wemmers | ½–½ | Mainka | Round 6: Wemmers, Xander - Mainka, Alwin | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Mar 7, 2026 | Van Foreest | 0–1 | Wemmers | Round 8: Van Foreest, Machteld - Wemmers, Xander | Sicilian Defense: Classical Variation, Anti-Sozin Variation | |
| Feb 7, 2026 | Wemmers | 1–0 | Van Prooijen | Round 7: Wemmers, Xander - Van Prooijen, Jan-Willem | Mikenas Defense | |
| Dec 26, 2025 | Beerdsen | 1–0 | Wemmers | Round 5: Beerdsen, Thomas - Wemmers, Xander | Sicilian Defense: Classical Variation, Anti-Sozin Variation | |
| Nov 22, 2025 | Wemmers | ½–½ | Van Haastert | Round 4: Wemmers, Xander - Van Haastert, Edwin | Queen's Gambit Declined: Harrwitz Attack, Main Line | |
| Nov 7, 2025 | Wemmers | 0–1 | De Winter | KNSB competitie 2025/2026 | Queen's Gambit Accepted | |
| Oct 25, 2025 | Bujnoch | ½–½ | Wemmers | Round 7: Bujnoch, Radek - Wemmers, Xander | Bogo-Indian Defense: Nimzowitsch Variation | |
| Oct 24, 2025 | Wemmers | 0–1 | Tashkinova | Round 6: Wemmers, Xander - Tashkinova, Sofiia | Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line | |
| Oct 22, 2025 | Wemmers | 1–0 | Wenzel | Round 4: Wemmers, Xander - Wenzel, Birger | Queen's Indian Defense: Classical Variation, Traditional Variation | |
| Oct 21, 2025 | Erten | 1–0 | Wemmers | Round 3: Erten, Kerem - Wemmers, Xander | Sicilian Defense: Modern Variations | |
| Oct 4, 2025 | Tabak | 0–1 | Wemmers | Round 2: Tabak, Stefan - Wemmers, Xander | Sicilian Defense: Modern Variations | |
| Sep 22, 2025 | Van der Stricht | ½–½ | Wemmers | KNSB competitie 2025/2026 | Nimzo-Indian Defense: St. Petersburg Variation, Fischer Variation | |
| May 15, 2025 | Wemmers | 0–1 | Bokorovics | KNSB Meesterklasse 2024-2025 | Queen's Gambit Declined: Three Knights, Vienna Variation | |
| Apr 5, 2025 | Cardon | 0–1 | Wemmers | KNSB Meesterklasse 2024-2025 | Nimzo-Indian Defense: Classical Variation | |
| Mar 8, 2025 | Wemmers | 1–0 | Kamman | KNSB Meesterklasse 2024-2025 | Dutch Defense: Classical Variation, Huisl Variation | |
| Feb 8, 2025 | Zwirs | ½–½ | Wemmers | Round 6: Zwirs, Nico - Wemmers, Xander | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations | |
| Dec 14, 2024 | Wemmers | 0–1 | Los | KNSB Meesterklasse 2024-2025 | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Nov 23, 2024 | Baltic | 1–0 | Wemmers | KNSB Meesterklasse 2024-2025 | Sicilian Defense: Modern Variations | |
| Oct 25, 2024 | Lopez Mulet | ½–½ | Wemmers | 39th European Chess Club Cup | English Opening: Symmetrical Variation, Rubinstein Variation | |
| Oct 24, 2024 | Panagiotakos | 0–1 | Wemmers | 39th European Chess Club Cup | Sicilian Defense: Richter-Rauzer Variation, Vitolins Variation | |
| Oct 23, 2024 | Wemmers | 0–1 | Radovanovic | 39th European Chess Club Cup | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Oct 22, 2024 | Lang | 0–1 | Wemmers | 39th European Chess Club Cup | Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation | |
| Oct 21, 2024 | Wemmers | 1–0 | Stocek | 39th European Chess Club Cup | Bogo-Indian Defense: Wade-Smyslov Variation | |
| Oct 20, 2024 | Culbeaux Tello | 0–1 | Wemmers | 39th European Chess Club Cup | Sicilian Defense: Moscow Variation, Main Line | |
| Oct 15, 2024 | Smeets | 1–0 | Wemmers | Round 2: Smeets, Jan - Wemmers, Xander | Sicilian Defense: Moscow Variation, Main Line | |
| Sep 21, 2024 | Wemmers | 0–1 | Gschnitzer | Round 1: Wemmers, Xander - Gschnitzer, Adrian | Queen's Gambit Declined | |
| Nov 9, 2024 | Wemmers | ½–½ | Van der Hagen | Round 3: Wemmers, Xander - Van der Hagen, Loek | Queen's Gambit Declined: Ragozin Defense | |
| Oct 4, 2023 | Wemmers | 0–1 | Ahmadzada | European Chess Club Cup 2023 | Benoni Defense: Classical Variation, Czerniak Defense | |
| Oct 2, 2023 | Wemmers | ½–½ | Cheparinov | European Chess Club Cup 2023 | Semi-Slav Defense: Normal Variation | |
| Jan 30, 2020 | Wemmers | 0–1 | Hjartarson | Gibraltar Chess Festival: Masters | Nimzo-Indian Defense: Kmoch Variation | |
| Jan 29, 2020 | Sadhwani | 1–0 | Wemmers | Gibraltar Chess Festival: Masters | English Opening: King's English Variation, Four Knights Variation, Flexible Line | |
| Jan 28, 2020 | Wemmers | 1–0 | Abergel | Gibraltar Chess Festival: Masters | Modern Defense: Kotov Variation | |
| Jan 27, 2020 | Aryan | 1–0 | Wemmers | Gibraltar Chess Festival: Masters | Caro-Kann Defense: Advance Variation | |
| Jan 26, 2020 | Wemmers | 1–0 | Petrov | Gibraltar Chess Festival: Masters | Nimzo-Indian Defense: Kmoch Variation | |
| Jan 21, 2020 | Ivanchuk | 1–0 | Wemmers | Gibraltar Chess Festival: Masters | Catalan Opening: Open Defense | |
