| Jul 19, 2026 | Lin | 1–0 | Colas | Round 9: Lin, Bryan Enming - Colas, Joshua | Sicilian Defense: Nimzowitsch Variation, Main Line | |
| Jul 19, 2026 | Colas | ½–½ | Jiang | Round 8: Colas, Joshua - Jiang, Andrew | Sicilian Defense: Kan Variation, Swiss Cheese Variation | |
| Jul 18, 2026 | Plotkin | ½–½ | Colas | Round 7: Plotkin, Mark - Colas, Joshua | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Jul 18, 2026 | Yudasin | ½–½ | Colas | Round 6: Yudasin, Leonid - Colas, Joshua | Sicilian Defense: Nimzowitsch Variation, Main Line | |
| May 17, 2026 | Colas | 1–0 | Kevin Stern | Round 4: Colas, Joshua - Kevin Stern | Catalan Opening: Open Defense, Classical Line | |
| May 16, 2026 | Peyton | 0–1 | Colas | Round 3: Peyton, Nathan - Colas, Joshua | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| May 14, 2026 | Luc William Crim Hoffman | 0–1 | Colas | Round 5: Luc William Crim Hoffman - Colas, Joshua | Sicilian Defense: Nimzowitsch Variation, Main Line | |
| May 14, 2026 | Colas | ½–½ | Lee | Round 2: Colas, Joshua - Lee, Rohan | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| May 14, 2026 | George P Berg | 0–1 | Colas | Round 1: George P Berg - Colas, Joshua | Sicilian Defense: Nimzowitsch Variation, Main Line | |
| May 3, 2026 | Colas | 1–0 | Das | Round 5: Colas, Joshua - Das, Aditeya | Bogo-Indian Defense: Retreat Variation | |
| May 2, 2026 | Li | 0–1 | Colas | Round 3: Li, Aiden Linyuan - Colas, Joshua | Sicilian Defense: Kan Variation, Wing Attack | |
| May 2, 2026 | Colas | 1–0 | Lu | Round 2: Colas, Joshua - Lu, Lucas | English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense | |
| May 1, 2026 | Kimani A Stancil | 0–1 | Colas | Round 1: Kimani A Stancil - Colas, Joshua | Sicilian Defense: Nimzowitsch Variation | |
| Apr 29, 2026 | Stearman | ½–½ | Colas | Round 4: Stearman, Josiah - Colas, Joshua | Sicilian Defense: Nimzowitsch Variation, Advance Variation | |
| Apr 16, 2026 | Doddapaneni | ½–½ | Colas | Round 5: Doddapaneni, Viyaan Krishna - Colas, Joshua | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Apr 16, 2026 | Colas | 1–0 | Luc William Crim Hoffman | Round 4: Colas, Joshua - Luc William Crim Hoffman | Catalan Opening | |
| Apr 16, 2026 | Li | 0–1 | Colas | Round 3: Li, Aiden Linyuan - Colas, Joshua | Sicilian Defense: Nimzowitsch Variation, Closed Variation | |
| Apr 16, 2026 | Colas | 1–0 | Baranwal | Round 2: Colas, Joshua - Baranwal, Suvan | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Apr 16, 2026 | Wong | 0–1 | Colas | Round 1: Wong, Hudson - Colas, Joshua | Sicilian Defense: Nimzowitsch Variation, Closed Variation | |
| Feb 16, 2026 | Weisz | 0–1 | Colas | Round 9: Weisz, Bryan - Colas, Joshua | Caro-Kann Defense: Maróczy Variation | |
| Feb 16, 2026 | Colas | 1–0 | Anatol | Round 8: Colas, Joshua - Anatol, Luke Leon Robin | Indian Defense: London System | |
| Feb 15, 2026 | Ma | 1–0 | Colas | Round 7: Ma, Whee Ky - Colas, Joshua | King's Indian Attack, with e6 | |
| Feb 15, 2026 | Colas | ½–½ | Barbosa | Round 6: Colas, Joshua - Barbosa, Oliver | Bogo-Indian Defense: Retreat Variation | |
| Feb 14, 2026 | Kaczur | 1–0 | Colas | Round 5: Kaczur, Florian - Colas, Joshua | English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense | |
| Feb 14, 2026 | Colas | 1–0 | Goodrich | Round 4: Colas, Joshua - Goodrich, Elliott | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Feb 13, 2026 | George | 1–0 | Colas | Round 3: George, Kevin - Colas, Joshua | French Defense: Rubinstein Variation, Blackburne Defense | |
| Feb 13, 2026 | Colas | 0–1 | Venkatesh | Round 2: Colas, Joshua - Venkatesh, Narayan | Catalan Opening: Open Defense, Classical Line | |
| Feb 9, 2026 | Colas | ½–½ | Pang | Round 1: Colas, Joshua - Pang, Qi | Catalan Opening: Closed Variation, Traditional Variation | |
| Dec 29, 2025 | Colas | ½–½ | Ozenir | 35th annual North American Open | English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto | |
| Dec 27, 2025 | Amilal Munkhdalai | ½–½ | Colas | 35th annual North American Open | Caro-Kann Defense | |
| Dec 21, 2025 | Colas | 0–1 | Korley | Round 7: Colas, Joshua - Korley, Kassa | English Opening: Neo-Catalan | |
| Dec 21, 2025 | Lenderman | 0–1 | Colas | Round 6: Lenderman, Aleksandr - Colas, Joshua | Queen's Gambit Declined: Three Knights Variation | |
| Dec 20, 2025 | Colas | 1–0 | Li | Round 5: Colas, Joshua - Li, Aiden Linyuan | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Dec 20, 2025 | Bortnyk | 1–0 | Colas | Round 4: Bortnyk, Mykola - Colas, Joshua | Caro-Kann Defense: Advance Variation, Bayonet Attack | |
| Dec 19, 2025 | Colas | 1–0 | Ling | Round 3: Colas, Joshua - Ling, Chenxuan | Catalan Opening: Open Defense, Classical Line | |
| Dec 19, 2025 | Fleischman | ½–½ | Colas | Round 2: Fleischman, Eric - Colas, Joshua | Caro-Kann Defense: Forgacs Variation | |
| Dec 19, 2025 | Colas | 1–0 | Jefferson | Round 1: Colas, Joshua - Jefferson, Matheu | Catalan Opening: Open Defense | |
| Sep 1, 2025 | Colas | 1–0 | Nasta | Round 9: Colas, Joshua - Nasta, Kiren Vivek | Zukertort Opening: Nimzo-Larsen Variation | |
| Sep 1, 2025 | Rosenberg | 0–1 | Colas | Round 8: Rosenberg, Evan S - Colas, Joshua | Rapport-Jobava System | |
| Jul 5, 2025 | Colas | 0–1 | Harsha Bharathakoti | 53rd Annual World Open Chess Tournament | Bogo-Indian Defense: Retreat Variation | |
| Jul 5, 2025 | Cordova Daza | ½–½ | Colas | 53rd Annual World Open Chess Tournament | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jul 5, 2025 | Colas | * | Yue | 53rd Annual World Open Chess Tournament | ? | |
| Apr 13, 2025 | Colas | 0–1 | Ivic | Reykjavik Open 2025 | Indian Defense: Wade-Tartakower Defense | |
| Apr 12, 2025 | Garifullina | 1–0 | Colas | Reykjavik Open 2025 | Scandinavian Defense: Gubinsky-Melts Defense | |
| Sep 2, 2024 | Gaw | 0–1 | Colas | Round 9: Gaw, Chloe - Colas, Joshua | Queen's Gambit Declined: Janowski Variation | |
| Sep 2, 2024 | Colas | 1–0 | Patel | Round 8: Colas, Joshua - Patel, Maahir M | English Opening: Four Knights System, Nimzowitsch Variation | |
| Sep 1, 2024 | Stern | 0–1 | Colas | Round 7: Stern, Kevin B - Colas, Joshua | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Aug 31, 2024 | Colas | 1–0 | Aravindakshan | Round 4: Colas, Joshua - Aravindakshan, Sahana | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Aug 30, 2024 | Hoffman | ½–½ | Colas | Round 3: Hoffman, Luc - Colas, Joshua | Catalan Opening: Open Defense | |
| Aug 30, 2024 | Mottola | 0–1 | Colas | Round 2: Mottola, Max - Colas, Joshua | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Aug 29, 2024 | Colas | ½–½ | Shangin | Round 1: Colas, Joshua - Shangin, Lev | English Opening: Neo-Catalan | |
| Aug 28, 2024 | Colas | ½–½ | Zhao | Round 6: Colas, Joshua - Zhao, Alex | King's Indian Defense: Fianchetto Variation, Larsen Defense | |
| Aug 28, 2024 | Sloan | 0–1 | Colas | Round 5: Sloan, Jed - Colas, Joshua | Sicilian Defense: Nimzowitsch Variation, Advance Variation | |
| Dec 15, 2024 | Colas | 1–0 | Hughes | Round 7: Colas, Joshua - Hughes, John L | Queen's Pawn Game: Krause Variation | |
| Dec 15, 2024 | Ling | 0–1 | Colas | Round 6: Ling, Chenxuan - Colas, Joshua | Queen's Gambit Declined: Janowski Variation | |
| Dec 14, 2024 | Colas | ½–½ | Das | Round 5: Colas, Joshua - Das, Aditeya | Catalan Opening: Closed | |
| Dec 14, 2024 | Tang | 1–0 | Colas | Round 4: Tang, Andrew - Colas, Joshua | Indian Defense: London System | |
| Dec 13, 2024 | Zhu | 0–1 | Colas | Round 3: Zhu, Linxi - Colas, Joshua | Sicilian Defense: Kan Variation, Modern Variation | |
| Dec 12, 2024 | Colas | 1–0 | Levin | Round 1: Colas, Joshua - Levin, Anthony | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jul 7, 2023 | Paragua | 1–0 | Colas | 1000GM NY Summer Norm Invitational - IM B Schiller | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Sep 3, 2021 | Colas | 1–0 | Oberoi | Charlotte Labor Day - IM-D | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Sep 3, 2021 | Diulger | 0–1 | Colas | Charlotte Labor Day - IM-D | Queen's Pawn Game: Accelerated London System | |
| Sep 2, 2021 | Prilleltensky | 0–1 | Colas | Charlotte Labor Day - IM-D | English Opening: King's English Variation, Four Knights Variation, Quiet Line | |
| — | Colas | ½–½ | Hoffman | Round 3: Colas, Joshua - Hoffman, Luc | Slav Indian: Kudischewitsch Gambit | |
| — | Colas | 1–0 | Goodrich | Round 5: Colas, Joshua - Goodrich, Elliott | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| — | Colas | ½–½ | Patel | Round 7: Colas, Joshua - Patel, Maahir M | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| — | Rohde | ½–½ | Colas | Round 1: Rohde, Michael - Colas, Joshua | Caro-Kann Defense: Advance Variation, Short Variation | |
| — | Shangin | 1–0 | Colas | Round 2: Shangin, Lev - Colas, Joshua | Queen's Indian Defense: Kasparov-Petrosian Variation, Hedgehog Variation | |
| — | Rawshani | 0–1 | Colas | Round 4: Rawshani, Kamran - Colas, Joshua | Sicilian Defense: Nimzowitsch Variation, Advance Variation | |
| — | Klenoff | ½–½ | Colas | Round 6: Klenoff, Caleb - Colas, Joshua | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |