| 7 jun 2026 | Mimkes, Antal 2137 | Colbow, Collin 2442 | 0-1 | B21 Defensa Siciliana: Smith-Morra Gambit | Pokalmannschaftsmeisterschaft Niedersachsen/Bremen | 46 | Ver |
| 7 jun 2026 | Colbow, Collin 2442 | Bertholee, Rob 2309 | 1-0 | C02 Defensa Francesa: Advance Variation, Paulsen Attack | Pokalmannschaftsmeisterschaft Niedersachsen/Bremen | 35 | Ver |
| 6 jun 2026 | Colbow, Collin 2442 | Bargsten, Justus 2255 | ½-½ | B33 Defensa Siciliana: Lasker-Pelikan Variation | Pokalmannschaftsmeisterschaft Niedersachsen/Bremen | 32 | Ver |
| 1 jun 2026 | Martin, Dennis 2076 | Colbow, Collin 2442 | 0-1 | E16 Defensa India de Dama: Capablanca Variation | Pokalmannschaftsmeisterschaft Niedersachsen/Bremen | 47 | Ver |
| 25 may 2026 | Tomov, Georgi 2297 | Colbow, Collin 2436 | 0-1 | B22 Defensa Siciliana: Alapin Variation | 13. Krefelder Pfingstopen 2026 | 37 | Ver |
| 24 may 2026 | Lichtmannecker, Daniel 2188 | Colbow, Collin 2436 | 0-1 | B54 Defensa Siciliana: Prins Variation | 13. Krefelder Pfingstopen 2026 | 35 | Ver |
| 22 may 2026 | Colbow, Collin 2436 | Gutkin, Ilya 2280 | ½-½ | B35 Defensa Siciliana: Accelerated Dragon, Modern Bc4 Variation | 13. Krefelder Pfingstopen 2026 | 26 | Ver |
| 22 may 2026 | Colbow, Collin 2436 | Pfreundt, Jakob 2471 | ½-½ | B17 Defensa Caro-Kann: Karpov Variation | 13. Krefelder Pfingstopen 2026 | 13 | Ver |
| 6 abr 2026 | Kueppers, Timo 2317 | Colbow, Collin 2443 | ½-½ | A13 Apertura Inglesa: Agincourt Defense | Grenke Chess Festival 2026 Open | 25 | Ver |
| 6 abr 2026 | Colbow, Collin 2443 | Hamid, Emran 2264 | 1-0 | B15 Defensa Caro-Kann: Tartakower Variation | Grenke Chess Festival 2026 Open | 54 | Ver |
| 5 abr 2026 | Ballotti, Luca 2264 | Colbow, Collin 2443 | ½-½ | B30 Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack | Grenke Chess Festival 2026 Open | 74 | Ver |
| 5 abr 2026 | Colbow, Collin 2443 | Asadzade, Idris 2268 | ½-½ | C02 Defensa Francesa: Advance Variation, Paulsen Attack | Grenke Chess Festival 2026 Open | 47 | Ver |
| 4 abr 2026 | Chittka, Julius 2279 | Colbow, Collin 2443 | ½-½ | D37 Gambito de Dama rehusado: Harrwitz Attack | Grenke Chess Festival 2026 Open | 50 | Ver |
| 4 abr 2026 | Colbow, Collin 2443 | Pillard, Valentin 2277 | ½-½ | B06 Defensa Moderna: Standard Defense | Grenke Chess Festival 2026 Open | 29 | Ver |
| 3 abr 2026 | Colbow, Collin 2443 | Butenandt, Svenja 2204 | 1-0 | B15 Defensa Caro-Kann: Tartakower Variation | Grenke Chess Festival 2026 Open | 48 | Ver |
| 2 abr 2026 | Kern, Nicolas 2103 | Colbow, Collin 2443 | 0-1 | B23 Defensa Siciliana: Closed, Traditional | Grenke Chess Festival 2026 Open | 48 | Ver |
| 22 mar 2026 | Colbow, Collin 2441 | Krause, Jonah 2327 | ½-½ | B45 Defensa Siciliana: Taimanov Variation | German Bundesliga 2025/26 | 21 | Ver |
| 21 mar 2026 | Heinemann, Thies 2403 | Colbow, Collin 2441 | ½-½ | B52 Defensa Siciliana: Moscow Variation, Sokolsky Variation | 1. BL Pauli | 37 | Ver |
| 1 mar 2026 | Rozen, Eytan 2497 | Colbow, Collin 2441 | 1-0 | C42 Defensa Petrov | 1. BL Bremen | 44 | Ver |
| 28 feb 2026 | Colbow, Collin 2441 | Wagner, Dinara 2414 | ½-½ | C80 Apertura Española (Ruy López): Open, Bernstein Variation | 1. BL Bremen | 56 | Ver |