| Feb 22, 2026 | Scarsi | 0–1 | Arana | Round 22: Scarsi, Anna Laura - Arana, Augusto | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Feb 22, 2026 | Arana | ½–½ | Scarsi | Round 21: Arana, Augusto - Scarsi, Anna Laura | Queen's Gambit Declined: Three Knights Variation | |
| Feb 21, 2026 | Arana | 1–0 | Unhold | Round 20: Arana, Augusto - Unhold, Valentin | Grünfeld Defense: Exchange Variation | |
| Feb 21, 2026 | Unhold | 1–0 | Arana | Round 19: Unhold, Valentin - Arana, Augusto | Queen's Pawn Game: Colle System | |
| Feb 21, 2026 | Marinesco | 1–0 | Arana | Round 18: Marinesco, Tomas - Arana, Augusto | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Feb 21, 2026 | Arana | 0–1 | Marinesco | Round 17: Arana, Augusto - Marinesco, Tomas | Queen's Gambit Declined: Marshall Defense | |
| Feb 21, 2026 | Arana | 1–0 | Sanz | Round 16: Arana, Augusto - Sanz, Manuel | Nimzo-Indian Defense: Normal Variation, Ragozin Variation | |
| Feb 21, 2026 | Sanz | 0–1 | Arana | Round 15: Sanz, Manuel - Arana, Augusto | Sicilian Defense: Closed | |
| Feb 21, 2026 | Garcia | 0–1 | Arana | Round 14: Garcia, Pablo Nahuel - Arana, Augusto | French Defense: Steinitz Variation | |
| Feb 21, 2026 | Arana | 0–1 | Garcia | Round 13: Arana, Augusto - Garcia, Pablo Nahuel | Modern Defense: Averbakh System | |
| Feb 21, 2026 | Arana | 1–0 | Lainez Reyes | Round 10: Arana, Augusto - Lainez Reyes, Isaac | Grünfeld Defense: Exchange Variation | |
| Feb 21, 2026 | Lainez Reyes | 0–1 | Arana | Round 9: Lainez Reyes, Isaac - Arana, Augusto | English Opening: Agincourt Defense | |
| Feb 21, 2026 | Moro Saidon | 0–1 | Arana | Round 8: Moro Saidon, Gonzalo - Arana, Augusto | Zukertort Opening: Queen's Gambit Invitation | |
| Feb 21, 2026 | Arana | 0–1 | Moro Saidon | Round 7: Arana, Augusto - Moro Saidon, Gonzalo | English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation | |
| Feb 21, 2026 | Arana | 0–1 | Moldovan | Round 6: Arana, Augusto - Moldovan, Adrian | English Opening: Great Snake Variation | |
| Feb 21, 2026 | Moldovan | 1–0 | Arana | Round 5: Moldovan, Adrian - Arana, Augusto | Nimzo-Larsen Attack: Classical Variation | |
| Feb 21, 2026 | Ferrari | 1–0 | Arana | Round 4: Ferrari, Franco - Arana, Augusto | Sicilian Defense: Smith-Morra Gambit Deferred | |
| Feb 21, 2026 | Arana | 1–0 | Ferrari | Round 3: Arana, Augusto - Ferrari, Franco | Queen's Indian Accelerated | |
| Feb 21, 2026 | Arana | 1–0 | Casella | Round 2: Arana, Augusto - Casella, Leandro | Dutch Defense: Hopton Attack | |
| Feb 21, 2026 | Arana | 0–1 | Chiappero | Round 12: Arana, Augusto - Chiappero, Julio Alfredo | Queen's Gambit Declined: Ragozin Defense | |
| Feb 21, 2026 | Chiappero | 1–0 | Arana | Round 11: Chiappero, Julio Alfredo - Arana, Augusto | Horwitz Defense | |
| Feb 21, 2026 | Casella | 0–1 | Arana | Round 1: Casella, Leandro - Arana, Augusto | English Opening: Agincourt Defense | |
| Feb 21, 2026 | Arana | 0–1 | Scarsi | Round 14: Arana, Augusto - Scarsi, Anna Laura | Queen's Gambit Declined: Three Knights Variation | |
| Feb 21, 2026 | Scarsi | 0–1 | Arana | Round 13: Scarsi, Anna Laura - Arana, Augusto | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Feb 21, 2026 | Unhold | 1–0 | Arana | Round 12: Unhold, Valentin - Arana, Augusto | English Opening: Neo-Catalan | |
| Feb 21, 2026 | Arana | 1–0 | Unhold | Round 11: Arana, Augusto - Unhold, Valentin | Rat Defense: English Rat | |
| Feb 21, 2026 | Arana | 1–0 | Chiappero | Round 10: Arana, Augusto - Chiappero, Julio Alfredo | English Opening: King's English Variation | |
| Feb 21, 2026 | Chiappero | 1–0 | Arana | Round 9: Chiappero, Julio Alfredo - Arana, Augusto | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Feb 21, 2026 | Sanz | 0–1 | Arana | Round 8: Sanz, Manuel - Arana, Augusto | Sicilian Defense: French Variation, Westerinen Attack | |
| Feb 21, 2026 | Arana | 1–0 | Sanz | Round 7: Arana, Augusto - Sanz, Manuel | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Feb 21, 2026 | Arana | 1–0 | Moro Saidon | Round 6: Arana, Augusto - Moro Saidon, Gonzalo | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Feb 21, 2026 | Moro Saidon | ½–½ | Arana | Round 5: Moro Saidon, Gonzalo - Arana, Augusto | King's Indian Attack, with e6 | |
| Feb 20, 2026 | Moldovan | 1–0 | Arana | Round 4: Moldovan, Adrian - Arana, Augusto | Nimzo-Larsen Attack: Classical Variation | |
| Feb 20, 2026 | Arana | 0–1 | Moldovan | Round 3: Arana, Augusto - Moldovan, Adrian | Queen's Gambit Declined: Queen's Knight Variation | |
| Feb 20, 2026 | Garcia | 0–1 | Arana | Round 2: Garcia, Pablo Nahuel - Arana, Augusto | Horwitz Defense | |
| Feb 20, 2026 | Arana | 1–0 | Garcia | Round 1: Arana, Augusto - Garcia, Pablo Nahuel | Queen's Gambit Declined: Queen's Knight Variation | |
| Nov 11, 2025 | Arana | 1–0 | Toller | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | English Opening: Agincourt Defense | |
| Nov 10, 2025 | Perez | 1–0 | Arana | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Sicilian Defense: French Variation | |
| Nov 9, 2025 | Arana | 1–0 | De Dovitiis | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | English Opening: King's English Variation | |
| Nov 8, 2025 | Brignoccoli | 0–1 | Arana | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Sicilian Defense: French Variation | |
| Nov 7, 2025 | Arana | 1–0 | Ramirez | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | English Opening: King's English Variation | |
| Nov 6, 2025 | Arana | 0–1 | Medero Mino | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | English Opening: Symmetrical Variation, Two Knights, Fianchetto Variation | |
| Nov 5, 2025 | Donda | ½–½ | Arana | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Queen's Gambit Declined | |
| Nov 4, 2025 | Arana | 0–1 | Moreno Perez | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation | |
| Nov 3, 2025 | Lopez Medus | 0–1 | Arana | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Sicilian Defense: Closed | |
| Nov 1, 2025 | Arana | 0–1 | Cumpe | Round 2: Arana, Augusto - Cumpe, Lucas | English Opening: Agincourt Defense | |
| Oct 31, 2025 | Arana | 0–1 | Alonso | Round 4: Arana, Augusto - Alonso, Salvador | Réti Opening: Anglo-Slav Variation, Capablanca Variation | |
| Sep 20, 2025 | Perelman | 1–0 | Arana | Round 9: Perelman, Hernan - Arana, Augusto | Queen's Pawn Game: Symmetrical Variation | |
| Sep 20, 2025 | Liascovich | 1–0 | Arana | Round 8: Liascovich, Lucas - Arana, Augusto | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Sep 20, 2025 | Arana | 1–0 | Villegas | Round 7: Arana, Augusto - Villegas, Franco | English Opening: Neo-Catalan | |
| Sep 19, 2025 | Barrionuevo | 1–0 | Arana | Round 5: Barrionuevo, Pablo - Arana, Augusto | Queen's Gambit Declined | |
| Sep 19, 2025 | Perez Candelas | 0–1 | Arana | Round 4: Perez Candelas, Andres Eloy - Arana, Augusto | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Sep 19, 2025 | Carcamo | 1–0 | Arana | Round 2: Carcamo, Matias - Arana, Augusto | Sicilian Defense: Closed | |
| Jul 19, 2025 | Arana | 0–1 | Montes De Oca | Round 8: Arana, Augusto - Montes De Oca, Juan | Benoni Defense | |
| Jul 19, 2025 | Arana | 0–1 | Mela | Round 4: Arana, Augusto - Mela, Benjamin | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation, Stonewall Line | |
| Jul 18, 2025 | Arana | 0–1 | Cumpe | Round 2: Arana, Augusto - Cumpe, Lucas | Indian Defense: Normal Variation | |
| Jul 15, 2025 | Mussanti | ½–½ | Arana | Round 7: Mussanti, Diego - Arana, Augusto | Sicilian Defense: Kan Variation, Knight Variation | |
| Jul 12, 2025 | Arana | 0–1 | Slipak | Round 2: Arana, Augusto - Slipak, Sergio | Nimzo-Indian Defense: Rubinstein System, Rubinstein Variation, Main Line | |
| Apr 25, 2025 | Arana | 0–1 | Barrionuevo | Round 2: Arana, Augusto - Barrionuevo, Pablo | Tarrasch Defense: Two Knights Variation | |
| Nov 9, 2024 | Arana | 0–1 | Barrionuevo | Round 4: Arana, Augusto - Barrionuevo, Pablo | English Opening: Anglo-Indian Defense, King's Indian Formation | |
