| Apr 19, 2026 | Kolosowski | ½–½ | Sanal | EICC 2026 | Sicilian Defense: Closed | |
| Apr 18, 2026 | David | 0–1 | Kolosowski | EICC 2026 | Semi-Slav Defense: Stoltz Variation | |
| Apr 16, 2026 | Kolosowski | ½–½ | Kucza | EICC 2026 | Semi-Slav Defense: Normal Variation | |
| Apr 15, 2026 | Kejna | ½–½ | Kolosowski | EICC 2026 | English Opening: King's English Variation, Four Knights Variation, Flexible Line | |
| Apr 14, 2026 | Kolosowski | 0–1 | Warmerdam | EICC 2026 | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Apr 13, 2026 | Zawadzka | 0–1 | Kolosowski | EICC 2026 | Scandinavian Defense: Gubinsky-Melts Defense | |
| Apr 12, 2026 | Kolosowski | 1–0 | Brzezina | EICC 2026 | Caro-Kann Defense: Advance Variation, Short Variation | |
| Apr 10, 2026 | Kolosowski | ½–½ | Topencik | EICC 2026 | Zukertort Opening | |
| Apr 9, 2026 | Ringuet | ½–½ | Kolosowski | EICC 2026 | Indian Defense: Accelerated London System | |
| Apr 8, 2026 | Kolosowski | 1–0 | Bochniak | EIIC 2026 | Queen's Indian Accelerated | |
| Apr 7, 2026 | Blanquet | 1–0 | Kolosowski | EIIC 2026 | Grünfeld Defense: Brinckmann Attack | |
| Nov 16, 2025 | Arunava Bhattacharjee | 0–1 | Kolosowski | Finals Game 2: Arunava Bhattacharjee - Kolosowski, Mateusz | Grünfeld Defense: Exchange Variation | |
| Nov 16, 2025 | Kolosowski | 1–0 | Reimanis | Finals Game 1: Kolosowski, Mateusz - Reimanis, Ritvars | Three Knights Opening | |
| Nov 16, 2025 | Kolosowski | 0–1 | Onyshchuk | Semifinals Game 2: Kolosowski, Mateusz - Onyshchuk, Volodymyr | Modern Defense: Standard Defense | |
| Nov 16, 2025 | Onyshchuk | ½–½ | Kolosowski | Semifinals Game 1: Onyshchuk, Volodymyr - Kolosowski, Mateusz | King's Indian Attack: Double Fianchetto | |
| Nov 14, 2025 | Kolosowski | 1–0 | Terekhov | Round 2: Kolosowski, Mateusz - Terekhov, Andrey | Sicilian Defense: Closed | |
| Nov 14, 2025 | Ovita Brian | 0–1 | Kolosowski | Round 1: Ovita Brian - Kolosowski, Mateusz | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Nov 13, 2025 | Kolosowski | 1–0 | Edelman | Round 10: Kolosowski, Mateusz - Edelman, Daniel | French Defense: Tarrasch Variation, Closed Variation, Main Line | |
| Nov 13, 2025 | Nerkar Anand | 0–1 | Kolosowski | Round 9: Nerkar Anand - Kolosowski, Mateusz | Grünfeld Defense: Three Knights Variation, Hungarian Variation | |
| Nov 13, 2025 | Kolosowski | ½–½ | Acs | Round 8: Kolosowski, Mateusz - Acs, Peter | Sicilian Defense: Closed, Traditional | |
| Nov 13, 2025 | Terekhov | ½–½ | Kolosowski | Round 7: Terekhov, Andrey - Kolosowski, Mateusz | Neo-Grünfeld Defense: Classical Variation, Original Defense | |
| Nov 13, 2025 | Kolosowski | 1–0 | Ovita Brian | Round 6: Kolosowski, Mateusz - Ovita Brian | Modern Defense: Standard Defense | |
| Nov 13, 2025 | Edelman | 0–1 | Kolosowski | Round 5: Edelman, Daniel - Kolosowski, Mateusz | Scotch Game: Scotch Gambit, Advance Variation | |
| Nov 13, 2025 | Kolosowski | 1–0 | Nerkar Anand | Round 4: Kolosowski, Mateusz - Nerkar Anand | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Nov 13, 2025 | Acs | 0–1 | Kolosowski | Round 3: Acs, Peter - Kolosowski, Mateusz | Scotch Game: Scotch Gambit, Advance Variation | |
| Dec 30, 2021 | Kolosowski | 0–1 | Christiansen | Open | Ruy Lopez: Schliemann Defense, Möhring Variation | |
| Dec 30, 2021 | Kolosowski | 1–0 | Szpar | Open | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Dec 30, 2021 | Kolosowski | ½–½ | Jakubowski | Open | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Dec 30, 2021 | Kolosowski | ½–½ | Sankalp | Open | French Defense: Tarrasch Variation, Modern System | |
| Dec 30, 2021 | Kolosowski | 1–0 | Krasenkow | FIDE World Blitz Championship | Philidor Defense: Lion Variation | |
| Dec 30, 2021 | Efimenko | ½–½ | Kolosowski | Open | King's Indian Attack: Symmetrical Defense | |
| Dec 30, 2021 | Halkias | ½–½ | Kolosowski | Open | English Opening: Symmetrical Variation, Three Knights Variation | |
| Dec 30, 2021 | Nevednichy | ½–½ | Kolosowski | Open | King's Pawn Game: Tayler Opening, Inverted Hanham | |
| Dec 30, 2021 | Thybo | ½–½ | Kolosowski | Open | London System | |
| Dec 29, 2021 | Kolosowski | ½–½ | Maghsoodloo | Open | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Dec 29, 2021 | Kolosowski | 0–1 | Michalik | Open | Queen's Pawn Game: Colle System | |
| Dec 29, 2021 | Kolosowski | 0–1 | Mikhalevski | Open | East Indian Defense | |
| Dec 29, 2021 | Kolosowski | ½–½ | Heberla | Open | Scotch Game: Classical Variation, Intermezzo Variation | |
| Dec 29, 2021 | Kolosowski | 0–1 | Ghaem Maghami | FIDE World Blitz Championship | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Dec 29, 2021 | Quparadze | 1–0 | Kolosowski | Open | Ruy Lopez: Cozio Defense | |
| Dec 29, 2021 | Samunenkov | 1–0 | Kolosowski | Open | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Dec 29, 2021 | Baum | 0–1 | Kolosowski | Open | Grünfeld Defense: Stockholm Variation | |
| Dec 29, 2021 | Lubczynski | 0–1 | Kolosowski | Open | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Dec 29, 2021 | Berchtenbreiter | 0–1 | Kolosowski | Open | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 28, 2021 | Kolosowski | 0–1 | Lima | Open | Alekhine Defense: Modern Variation, Flohr Variation | |
| Dec 28, 2021 | Kolosowski | ½–½ | Baum | Open | Sicilian Defense: Closed | |
| Dec 28, 2021 | Kolosowski | 0–1 | Kantor | Open | Nimzowitsch Defense: Williams Variation | |
| Dec 28, 2021 | Sadzikowski | 0–1 | Kolosowski | Open | Ruy Lopez: Cozio Defense | |
| Dec 27, 2021 | Kolosowski | 1–0 | Lubczynski | Open | Pirc Defense | |
| Dec 27, 2021 | Nevednichy | 1–0 | Kolosowski | Open | King's Knight Opening: Normal Variation | |
| Dec 27, 2021 | Blanco Acevedo | 1–0 | Kolosowski | Open | Queen's Pawn Game: Torre Attack, Grünfeld Variation, Main Line | |
| Dec 27, 2021 | Kuzmicz | 0–1 | Kolosowski | Open | Zukertort Opening: Nimzo-Larsen Variation | |
| Dec 26, 2021 | Erdos | 1–0 | Kolosowski | FIDE World Rapid Championship | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Sep 12, 2021 | Kolosowski | ½–½ | Luch | Polish League Division 1 | Sicilian Defense: Closed | |
| Sep 11, 2021 | Plichta | ½–½ | Kolosowski | Polish League Division 1 | Ruy Lopez: Exchange Variation, Alapin Gambit | |
| Sep 10, 2021 | Kolosowski | 1–0 | Protaziuk | Polish League Division 1 | Sicilian Defense: Closed | |
| Sep 9, 2021 | Licznerski | ½–½ | Kolosowski | Polish League Division 1 | Ruy Lopez: Cozio Defense | |
| Sep 8, 2021 | Kolosowski | 0–1 | Warakomski | Polish League Division 1 | Sicilian Defense: French Variation | |
| Sep 7, 2021 | Olsen | ½–½ | Kolosowski | Polish League Division 1 | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Sep 6, 2021 | Kolosowski | 0–1 | Barski | Polish League Division 1 | Queen's Pawn Game: Symmetrical Variation | |
| Sep 5, 2021 | Raczynski | 0–1 | Kolosowski | Polish League Division 1 | Indian Defense | |
| Sep 4, 2021 | Kolosowski | 1–0 | Brozyna | Polish League Division 1 | Scotch Game: Classical Variation, Intermezzo Variation | |