| Jun 30, 2026 | Altman | 0–1 | Dushyant Sharma | Round 9: Altman, Joshua - Dushyant Sharma | Queen's Gambit Declined: Harrwitz Attack | |
| Jun 29, 2026 | Rostomyan | ½–½ | Altman | Round 8: Rostomyan, Mikayel - Altman, Joshua | Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch Bishop Attack | |
| Jun 28, 2026 | Altman | ½–½ | Yang | Round 7: Altman, Joshua - Yang, Jingyun (ryan) | King's Indian Defense | |
| Jun 28, 2026 | Sinha | ½–½ | Altman | Round 6: Sinha, Sahil - Altman, Joshua | Tarrasch Defense: Classical Variation, Advance Variation | |
| Jun 27, 2026 | Altman | ½–½ | Tsay | Round 5: Altman, Joshua - Tsay, Vincent | Semi-Slav Defense: Marshall Gambit | |
| Jun 27, 2026 | Lee | ½–½ | Altman | Round 4: Lee, Michael - Altman, Joshua | Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch | |
| Jun 25, 2026 | Joshua A Altman | 0–1 | Karthik Venkataraman | Round 1: Joshua A Altman - Karthik Venkataraman | King's Indian Defense | |
| Jan 3, 2026 | Altman | ½–½ | Kung | Round 3: Altman, Joshua - Kung, Thomas | Queen's Gambit Declined: Three Knights Variation | |
| Jan 3, 2026 | Altman | ½–½ | Parkhov | Round 1: Altman, Joshua - Parkhov, Yair | Semi-Slav Defense | |
| Nov 26, 2025 | Altman | 0–1 | Bortnyk | Round 1: Altman, Joshua - Bortnyk, Olexandr | Queen's Indian Accelerated | |
| Jul 20, 2025 | Jing | ½–½ | Altman | Round 9: Jing, Andrew - Altman, Joshua | Indian Defense: Normal Variation | |
| Jul 19, 2025 | Altman | 0–1 | Moor | Round 6: Altman, Joshua - Moor, Nathaniel Philip | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Jul 18, 2025 | Altman | ½–½ | Yudasin | Round 4: Altman, Joshua - Yudasin, Leonid | Benoni Defense | |
| Jul 17, 2025 | George | 1–0 | Altman | Round 3: George, Kevin - Altman, Joshua | Benko Gambit: Zaitsev System | |
| Jul 16, 2025 | Maksimenko | 1–0 | Altman | Round 1: Maksimenko, Andrei - Altman, Joshua | Queen's Gambit Declined: Janowski Variation | |
| Jun 28, 2025 | Chakravarty | * | Altman | 18th Annual Philadephia International | ? | |
| Aug 10, 2024 | Grigoryan | 1–0 | Altman | 11th Annual Washington International - Championship | French Defense: Burn Variation | |
| Jul 4, 2024 | Seshadri | 0–1 | Altman | 52nd Annual World Open | Benoni Defense: Benoni-Indian Defense | |
| — | Altman | 0–1 | Shoker | 12th Annual Washington International - Championship | Indian Defense: Wade-Tartakower Defense | |
| — | Wang | ½–½ | Altman | 12th Annual Washington International - Championship | Horwitz Defense | |
