| 3 abr 2026 | Stankovic, Milos 2402 | Mainka, Alwin 2183 | 1-0 | B23 Defensa Siciliana: Grand Prix Attack | Grenke Chess Festival 2026 Open | 48 | Ver |
| 28 mar 2026 | Wemmers, Xander 2332 | Mainka, Alwin 2184 | ½-½ | D85 Defensa Grünfeld: Exchange Variation, Modern Exchange Variation | Dutch Meesterklasse 2025/26 | 86 | Ver |
| 7 feb 2026 | Jakhari, Ansh 2194 | Mainka, Alwin 2173 | 0-1 | A05 Ataque Indio de Rey: Symmetrical Defense | Dutch Meesterklasse 2025/26 | 67 | Ver |
| 4 oct 2025 | Mainka, Alwin 2165 | Willemze, Thomas 2316 | ½-½ | B14 Defensa Caro-Kann: Panov Attack, Fianchetto Defense | Dutch Meesterklasse 2025/26 | 36 | Ver |