| 31 ago 2026 | Mattenberger, Matthias 2369 | Haag, Gregor 2403 | ½-½ | D90 Defensa Grünfeld: Three Knights Variation | SUI-chT Luzern-Riehen | 44 | Ver |
| 31 ago 2026 | Aeschbacher, Dimitri 2050 | Mattenberger, Matthias 2369 | 1-0 | B90 Defensa Siciliana: Najdorf Variation, Adams Attack | SUI-chT Geneve-Luzern | 40 | Ver |
| 1 ago 2026 | Mattenberger, Matthias 2347 | Rapport, Jovana 2243 | ½-½ | A84 Defensa Holandesa: Classical Variation | SixDays July 2026 GM A | 42 | Ver |
| 12 jul 2026 | Gelas, Christophe 2321 | Mattenberger, Matthias 2347 | ½-½ | E81 Defensa India de Rey: Sämisch Variation, Normal Defense | 30e Festival International Jean-Claude Loubatière | 46 | Ver |
| 11 jul 2026 | Mattenberger, Matthias 2347 | Degraeve, Remy 2463 | 1-0 | E26 Defensa Nimzoindia: Sämisch Variation, O'Kelly Variation | 30e Festival International Jean-Claude Loubatière | 33 | Ver |
| 9 jul 2026 | Mattenberger, Matthias 2347 | Mahir Taneja 2318 | 0-1 | D36 Gambito de Dama rehusado: Exchange Variation, Reshevsky Variation | 30e Festival International Jean-Claude Loubatière | 75 | Ver |
| 8 jul 2026 | Boyer, Mahel 2492 | Mattenberger, Matthias 2347 | ½-½ | B93 Defensa Siciliana: Najdorf Variation, Amsterdam Variation | 30e Festival International Jean-Claude Loubatière | 43 | Ver |
| 7 jul 2026 | Fedorchuk, Sergey A. 2593 | Mattenberger, Matthias 2347 | ½-½ | B50 Defensa Siciliana: Modern Variations | 30e Festival International Jean-Claude Loubatière | 71 | Ver |
| 6 jul 2026 | Mattenberger, Matthias 2347 | Reyan Md. 2161 | ½-½ | A48 East Indian Defense | 30e Festival International Jean-Claude Loubatière | 23 | Ver |
| 6 jul 2026 | Blanchet, Mathieu 2123 | Mattenberger, Matthias 2347 | 0-1 | B90 Defensa Siciliana: Najdorf Variation, English Attack | 30e Festival International Jean-Claude Loubatière | 20 | Ver |
| 5 jul 2026 | Mattenberger, Matthias 2347 | Bonn, Thomas 2120 | 1-0 | E73 Defensa India de Rey: Semi-Averbakh System | 30e Festival International Jean-Claude Loubatière | 53 | Ver |
| 23 jun 2026 | Saminskij, Jan 2234 | Mattenberger, Matthias 2353 | ½-½ | B94 Defensa Siciliana: Najdorf Variation | SUI-chT Wollishofen-Luzern | 21 | Ver |
| 23 jun 2026 | Mattenberger, Matthias 2353 | Rotunno, Flavio 2141 | 1-0 | B22 Defensa Siciliana: Alapin Variation | SUI-chT Luzern-Echallens | 40 | Ver |
| 10 may 2026 | Mattenberger, Matthias 2332 | Bournel, Antoine 2431 | ½-½ | E46 Defensa Nimzoindia: Normal Variation | mitropa-men | 30 | Ver |
| 9 may 2026 | Gnojek, Petr 2400 | Mattenberger, Matthias 2332 | ½-½ | D19 Defensa Eslava: Czech Variation, Classical System, Main Line | mitropa-men | 34 | Ver |
| 8 may 2026 | Mattenberger, Matthias 2332 | Kozlovic, Jernej 2317 | 1-0 | A18 Apertura Inglesa: Mikenas-Carls Variation | mitropa-men | 58 | Ver |
| 7 may 2026 | Schuricht, Emil Frederick 2273 | Mattenberger, Matthias 2332 | ½-½ | A15 Apertura Inglesa: Anglo-Indian Defense, King's Knight Variation | mitropa-men | 34 | Ver |
| 6 may 2026 | Mattenberger, Matthias 2332 | Sundac, Ivano 2257 | ½-½ | D36 Gambito de Dama rehusado: Exchange Variation, Reshevsky Variation | mitropa-men | 31 | Ver |
| 5 may 2026 | Matyassy, Lazar 2299 | Mattenberger, Matthias 2332 | 0-1 | A45 Defensa India: Accelerated London System | mitropa-men | 41 | Ver |
| 4 may 2026 | Mattenberger, Matthias 2332 | Bochnicka, Vladimir 2369 | 1-0 | B22 Defensa Siciliana: Alapin Variation | mitropa-men | 41 | Ver |