| Feb 14, 2026 | Pierucci | * | Ibarra | Round 2: Pierucci, Fabian - Ibarra, Juan Martin | Réti Opening: Anglo-Slav Variation, London Defensive System | |
| Nov 23, 2025 | Pierucci | 1–0 | Jasper | Campeonato Argentino Seniors - Supra 50 | French Defense: King's Indian Attack | |
| Nov 22, 2025 | Florentin | 1–0 | Pierucci | Campeonato Argentino Seniors - Supra 50 | Sicilian Defense: Najdorf Variation, Opocensky Variation, Modern Line | |
| Nov 22, 2025 | De Dovitiis | 1–0 | Pierucci | Campeonato Argentino Seniors - Supra 50 | Ruy Lopez: Closed, Bogoljubow Variation | |
| Nov 21, 2025 | Pierrot | 1–0 | Pierucci | Round 1: Pierrot, Facundo - Pierucci, Fabian | Slav Defense: Quiet Variation | |
| Nov 21, 2025 | Pierucci | 1–0 | Cuellar | Campeonato Argentino Seniors - Supra 50 | Pirc Defense: Austrian Attack, Kurajica Variation | |
| Nov 11, 2025 | Cumpe | 1–0 | Pierucci | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Sicilian Defense: Chekhover Variation | |
| Nov 10, 2025 | Pierucci | 0–1 | Valerga | Round 8: Pierucci, Fabian - Valerga, Diego | Sicilian Defense: Scheveningen Variation, Keres Attack | |
| Nov 10, 2025 | Pierucci | 0–1 | Valerga | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Sicilian Defense: Scheveningen Variation, Keres Attack | |
| Nov 9, 2025 | Villegas | 0–1 | Pierucci | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Sicilian Defense: Najdorf Variation, English Attack | |
| Nov 8, 2025 | Pierucci | 1–0 | Aguinaga | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Sicilian Defense: Closed, Botvinnik Defense, with f4 | |
| Nov 7, 2025 | Gonetti | 0–1 | Pierucci | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Italian Game: Two Knights Defense, Fritz Variation | |
| Nov 6, 2025 | Pierucci | 1–0 | Rojas | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Ruy Lopez: Closed, Flohr System | |
| Nov 5, 2025 | Bayinay | ½–½ | Pierucci | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Benko Gambit Accepted: Fully Accepted Variation | |
| Nov 4, 2025 | Pierucci | ½–½ | Diaz Sepulveda | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Nov 3, 2025 | Gomez | 1–0 | Pierucci | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jul 11, 2025 | Pierucci | 0–1 | Garcia Palermo | Round 1: Pierucci, Fabian - Garcia Palermo, Carlos Horacio | Queen's Gambit Declined | |
| Jun 16, 2024 | Pierucci | 0–1 | Vazquez | Round 1: Pierucci, Fabian - Vazquez, Facundo | Catalan Opening: Open Defense | |
| Jun 17, 2023 | Saliba | 1–0 | Pierucci | MASTER CIUDAD DE BUENOS AIRES - Club Arg | Indian Defense: Normal Variation | |
| Jun 16, 2023 | Pierucci | 1–0 | Montiel Marin | MASTER CIUDAD DE BUENOS AIRES - Club Ar | Sicilian Defense: Closed, Fianchetto Variation | |
| Jun 15, 2023 | Nesprias | 1–0 | Pierucci | MASTER CIUDAD DE BUENOS AIRES - Club Arg | King's Pawn Game: Leonardis Variation | |
| Jun 14, 2023 | Pierucci | 0–1 | Schnaider | MASTER CIUDAD DE BUENOS AIRES - Club Arg | Grünfeld Defense: Three Knights Variation, Hungarian Variation | |
