| 3 ago 2026 | De Jong, Migchiel 2238 | Boelhouwer, Collin 2109 | 1-0 | E11 Defensa Bogoindia: Retreat Variation | Scheldemond Schaaktoernooi 2026 | 66 | Ver |
| 11 abr 2026 | Boelhouwer, Collin 2117 | Keuning, Selwin 2192 | 0-1 | B48 Defensa Siciliana: Taimanov Variation, Bastrikov Variation, English Attack | Dutch Meesterklasse 2025/26 | 45 | Ver |
| 28 mar 2026 | Grooten, Tommy 2311 | Boelhouwer, Collin 2122 | 1-0 | A07 Ataque Indio de Rey: Yugoslav Variation | Dutch Meesterklasse 2025/26 | 28 | Ver |
| 7 feb 2026 | Boelhouwer, Collin 2126 | Van de Griendt, Jan Willem 2360 | 0-1 | C77 Apertura Española (Ruy López): Morphy Defense, Anderssen Variation | Dutch Meesterklasse 2025/26 | 42 | Ver |
| 22 nov 2025 | Grutter, Tim 2399 | Boelhouwer, Collin 2143 | 1-0 | A14 Apertura Inglesa: Agincourt Defense, Neo-Catalan Declined | Dutch Meesterklasse 2025/26 | 46 | Ver |
| 7 nov 2025 | De Waele, Warre 2340 | Boelhouwer, Collin 2143 | 1-0 | B62 Defensa Siciliana: Richter-Rauzer Variation, Vitolins Variation | KNSB competitie 2025/2026 | 62 | Ver |
| 23 oct 2025 | Boelhouwer, Collin 2167 | Roobol, Martin 2262 | 0-1 | C41 Defensa Philidor: Lion Variation | European Chess Club Cup 2025 | Open Matches 17+ | 45 | Ver |
| 19 oct 2025 | Boelhouwer, Collin 2167 | Yilmaz, Mustafa 2591 | 0-1 | B51 Defensa Siciliana: Moscow Variation | European Chess Club Cup 2025 | Open Matches 1-16 | 31 | Ver |
| 4 oct 2025 | Boelhouwer, Collin 2167 | Mollema, Thomas 2215 | 0-1 | C42 Defensa Petrov: Classical Attack | Dutch Meesterklasse 2025/26 | 43 | Ver |