| 7 may 2026 | Van Haastert, Edwin 2369 | Prraneeth Vuppala 2515 | 0-1 | B46 Defensa Siciliana: Taimanov Variation | Sardinia World Chess Festival 2026 | Open A | 61 | Ver |
| 5 may 2026 | Aditya Mittal 2619 | Van Haastert, Edwin 2369 | ½-½ | A21 Apertura Inglesa: King's English Variation, Kramnik-Shirov Counterattack | Sardinia World Chess Festival 2026 | Open A | 39 | Ver |
| 4 may 2026 | Van Haastert, Edwin 2369 | Svane, Frederik 2645 | ½-½ | B90 Defensa Siciliana: Najdorf Variation, English Attack | Sardinia World Chess Festival 2026 | Open A | 39 | Ver |
| 11 abr 2026 | Geirnaert, Steven 2399 | Van Haastert, Edwin 2371 | 1-0 | A65 Defensa Benoni: King's Pawn Line, with Nge2 | Dutch Meesterklasse 2025/26 | 36 | Ver |
| 28 mar 2026 | Schippers, Maurice 2267 | Van Haastert, Edwin 2382 | ½-½ | C02 Defensa Francesa: Advance Variation, Euwe Variation | Dutch Meesterklasse 2025/26 | 18 | Ver |
| 8 mar 2026 | Van Haastert, Edwin 2382 | Mollema, Thomas 2256 | ½-½ | C43 Defensa Petrov: Modern Attack, Center Variation | KNSB competitie 2025/2026 | 23 | Ver |
| 7 feb 2026 | Van Haastert, Edwin 2379 | Grooten, Herman 2185 | 1-0 | B23 Defensa Siciliana: Closed | Dutch Meesterklasse 2025/26 | 59 | Ver |
| 26 dic 2025 | Van Haastert, Edwin 2380 | Zhu, Chenwu 2238 | 1-0 | B90 Defensa Siciliana: Najdorf Variation, English Attack | Dutch Meesterklasse 2025/26 | 62 | Ver |
| 22 nov 2025 | Wemmers, Xander 2312 | Van Haastert, Edwin 2415 | ½-½ | D37 Gambito de Dama rehusado: Harrwitz Attack, Main Line | Dutch Meesterklasse 2025/26 | 18 | Ver |
| 30 oct 2025 | Garabetyan, Arno 2029 | Van Haastert, Edwin 2409 | 0-1 | D11 Defensa Eslava: Modern Line | FIDE World Senior Championship 2025 | Open 50+ | 53 | Ver |
| 29 oct 2025 | Van Haastert, Edwin 2409 | Bugayev, Vladimir 2119 | 0-1 | B36 Defensa Siciliana: Accelerated Dragon, Maróczy Bind | FIDE World Senior Championship 2025 | Open 50+ | 47 | Ver |
| 28 oct 2025 | Dosov, Nurlan 2131 | Van Haastert, Edwin 2409 | ½-½ | D47 Defensa Semieslava: Meran Variation, Wade Variation | FIDE World Senior Championship 2025 | Open 50+ | 44 | Ver |
| 26 oct 2025 | Van Haastert, Edwin 2409 | Bayramov, Vugar 2145 | ½-½ | B32 Defensa Siciliana: Open | FIDE World Senior Championship 2025 | Open 50+ | 51 | Ver |
| 25 oct 2025 | Duong, Thanh Nha 2161 | Van Haastert, Edwin 2409 | ½-½ | A13 Apertura Inglesa: Neo-Catalan | FIDE World Senior Championship 2025 | Open 50+ | 60 | Ver |
| 24 oct 2025 | Van Haastert, Edwin 2409 | Becker, Rogerio Sperb 2152 | ½-½ | B12 Defensa Caro-Kann: Advance Variation, Botvinnik-Carls Defense | FIDE World Senior Championship 2025 | Open 50+ | 69 | Ver |
| 23 oct 2025 | Stranz, Richard 2049 | Van Haastert, Edwin 2409 | 0-1 | B41 Defensa Siciliana: Kan Variation, Maróczy Bind, Réti Variation | FIDE World Senior Championship 2025 | Open 50+ | 35 | Ver |
| 21 oct 2025 | Grados, Luis 2053 | Van Haastert, Edwin 2409 | 1-0 | B22 Defensa Siciliana: Alapin Variation | FIDE World Senior Championship 2025 | Open 50+ | 48 | Ver |
| 4 oct 2025 | Fridman, Daniel 2582 | Van Haastert, Edwin 2409 | ½-½ | E06 Apertura Catalana: Closed | Dutch Meesterklasse 2025/26 | 42 | Ver |
| 20 sep 2025 | Van Haastert, Edwin 2409 | Pham, Khoi 2476 | ½-½ | C47 Apertura de los Cuatro Caballos: Scotch Variation Accepted, Main Line | Dutch Meesterklasse 2025/26 | 31 | Ver |