| Jul 18, 2026 | Fauci | 1–0 | Ibarburu | Round 7: Fauci, Bruno - Ibarburu, Nahuel | Dutch Defense: Alekhine Variation | |
| Jul 18, 2026 | Curi | 1–0 | Ibarburu | Round 5: Curi, Gabriel - Ibarburu, Nahuel | Rapport-Jobava System, with e6 | |
| Jul 17, 2026 | Ibarburu | 0–1 | Vaz Lacuesta | Round 5: Ibarburu, Nahuel - Vaz Lacuesta, Leonardo | Queen's Pawn Game: Accelerated London System | |
| Jul 17, 2026 | Ibanez | 0–1 | Ibarburu | Round 4: Ibanez, Marcelo - Ibarburu, Nahuel | English Opening: Agincourt Defense | |
| Jul 17, 2026 | Kulik | 1–0 | Ibarburu | Round 2: Kulik, Nicolas - Ibarburu, Nahuel | French Defense: Rubinstein Variation, Blackburne Defense | |
| Jun 21, 2026 | Ibarburu | 1–0 | Gutierrez | Round 8: Ibarburu, Nahuel - Gutierrez, Lucrecia | Indian Defense: Accelerated London System | |
| Jun 21, 2026 | Ibanez | 1–0 | Ibarburu | Round 7: Ibanez, Marcelo - Ibarburu, Nahuel | English Opening: King's English Variation | |
| Jun 21, 2026 | Nunez de la Rosa | ½–½ | Ibarburu | Round 5: Nunez de la Rosa, Matias - Ibarburu, Nahuel | Horwitz Defense | |
| Jun 21, 2026 | Ibarburu | 0–1 | Garcia Silveira | Round 2: Ibarburu, Nahuel - Garcia Silveira, Luis | Rapport-Jobava System | |
| Jun 20, 2026 | Suarez | ½–½ | Ibarburu | Round 7: Suarez, Pedro - Ibarburu, Nahuel | Dutch Defense: Rubinstein Variation | |
| Jun 20, 2026 | Ibarburu | 0–1 | Avedisian | Round 6: Ibarburu, Nahuel - Avedisian, Alexander | Indian Defense: Accelerated London System | |
| Jun 20, 2026 | Moreira | 0–1 | Ibarburu | Round 5: Moreira, Marcelo - Ibarburu, Nahuel | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| Jun 20, 2026 | Carvalho | 1–0 | Ibarburu | Round 3: Carvalho, Guillermo - Ibarburu, Nahuel | English Opening: Agincourt Defense | |
| Jun 6, 2026 | Izquierdo | ½–½ | Ibarburu | Round 3: Izquierdo, Daniel - Ibarburu, Nahuel | English Opening: Agincourt Defense | |
| Jun 5, 2026 | Perez | 1–0 | Ibarburu | Round 1: Perez, Maximiliano - Ibarburu, Nahuel | French Defense: Chigorin Variation | |