| May 24, 2026 | Simenon | 1–0 | Den Hartog | Round 13: Simenon, Jozef - Den Hartog, Marijn | Polish Opening | |
| May 24, 2026 | Aravindhan | 1–0 | Simenon | Round 12: Aravindhan, Achyuth - Simenon, Jozef | Modern Defense: Standard Defense | |
| May 24, 2026 | Simenon | ½–½ | Grochal | Round 11: Simenon, Jozef - Grochal, Joey | Polish Opening: Tartakower Gambit | |
| May 24, 2026 | Bekker | 0–1 | Simenon | Round 10: Bekker, Stefan - Simenon, Jozef | Zukertort Opening: Queenside Fianchetto Variation | |
| May 24, 2026 | Grooten | 1–0 | Simenon | Round 8: Grooten, Tommy - Simenon, Jozef | Zukertort Opening: Queenside Fianchetto Variation | |
| May 24, 2026 | Simenon | 1–0 | Pel | Round 9: Simenon, Jozef - Pel, Bonno | Nimzo-Larsen Attack | |
| May 23, 2026 | Van der Werf | 1–0 | Simenon | Round 5: Van der Werf, Mark - Simenon, Jozef | Polish Defense | |
| May 23, 2026 | Kamphuis | ½–½ | Simenon | Round 7: Kamphuis, Jasper - Simenon, Jozef | Modern Defense: Norwegian Defense | |
| May 23, 2026 | Simenon | 0–1 | Terlouw | Round 6: Simenon, Jozef - Terlouw, Wouter | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| May 23, 2026 | Simenon | 0–1 | Slagboom | Round 4: Simenon, Jozef - Slagboom, Leandro | Nimzo-Larsen Attack: Modern Variation | |
| May 23, 2026 | Ootes | 0–1 | Simenon | Round 3: Ootes, Lars - Simenon, Jozef | Owen Defense | |
| May 23, 2026 | Simenon | 0–1 | De Boer | Round 2: Simenon, Jozef - De Boer, Eelke | Polish Opening: Tartakower Gambit | |
| May 23, 2026 | Jellema | ½–½ | Simenon | Round 1: Jellema, Pieter - Simenon, Jozef | Paleface Attack | |
| Sep 28, 2025 | Simenon | 0–1 | Castellanos Villela | Round 5: Simenon, Jozef - Castellanos Villela, Alejandro | Polish Opening | |
| Sep 28, 2025 | Ozcan | 1–0 | Simenon | Round 4: Ozcan, Kaan - Simenon, Jozef | French Defense: St. George Defense, Traditional Line | |
| Sep 28, 2025 | Simenon | 1–0 | Lenting | Round 3: Simenon, Jozef - Lenting, Roan | Zukertort Opening: Santasiere's Folly | |
| Sep 28, 2025 | Smeenk | 0–1 | Simenon | Round 2: Smeenk, Jeroen - Simenon, Jozef | Indian Defense: Polish Variation | |
| Sep 28, 2025 | Simenon | 1–0 | De Vries | Round 1: Simenon, Jozef - De Vries, Robert | Nimzo-Larsen Attack: Indian Variation | |
| — | Simenon | 1–0 | Greussing | Round 1: Simenon, Jozef - Greussing, Stefan | Polish Opening: Bugayev Attack | |
| — | Simenon | ½–½ | Lerch | Round 4: Simenon, Jozef - Lerch, Johannes | Polish Opening | |
| — | Simenon | 1–0 | Blaesche | Round 7: Simenon, Jozef - Blaesche, Andreas | Polish Opening: Bugayev Attack | |
| — | Simenon | ½–½ | Schlosser | Round 8: Simenon, Jozef - Schlosser, Philipp | Polish Opening: Bugayev Attack | |
| — | Tumanyan | 0–1 | Simenon | Round 2: Tumanyan, Gor - Simenon, Jozef | Modern Defense: Norwegian Defense | |
| — | Felix | 0–1 | Simenon | Round 5: Felix, Raphael - Simenon, Jozef | St. George Defense | |
| — | Glek | 1–0 | Simenon | Round 6: Glek, Igor - Simenon, Jozef | Owen Defense | |
| — | Kienboeck | 1–0 | Simenon | Round 9: Kienboeck, Benjamin - Simenon, Jozef | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |