| Jun 18, 2026 | Deichmann | 0–1 | Ambrogi | Round 6: Deichmann, Esteban Horacio - Ambrogi, Agustin | Caro-Kann Defense: Breyer Variation | |
| Jun 17, 2026 | Ruiz | 0–1 | Deichmann | Round 5: Ruiz, Juan Ignacio - Deichmann, Esteban Horacio | Indian Defense: Accelerated London System | |
| Nov 11, 2025 | Deichmann | * | Gomez | Round 9: Deichmann, Esteban Horacio - Gomez, Carlos David | Ruy Lopez: Closed, Chigorin Defense | |
| Nov 11, 2025 | Deichmann | 0–1 | Gomez | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Ruy Lopez: Closed, Chigorin Defense | |
| Nov 10, 2025 | Paveto | 0–1 | Deichmann | Round 8: Paveto, Kevin - Deichmann, Esteban Horacio | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Nov 10, 2025 | Paveto | 0–1 | Deichmann | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Nov 9, 2025 | Moreno Perez | 0–1 | Deichmann | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Zukertort Opening: Dutch Variation | |
| Nov 8, 2025 | Deichmann | 0–1 | Acosta | Round 6: Deichmann, Esteban Horacio - Acosta, Pablo Ismael | Sicilian Defense: Old Sicilian | |
| Nov 8, 2025 | Deichmann | 0–1 | Acosta | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Sicilian Defense: Old Sicilian | |
| Nov 7, 2025 | Rodriguez Vila | 0–1 | Deichmann | Round 5: Rodriguez Vila, Andres - Deichmann, Esteban Horacio | King's Indian Attack: Sicilian Variation | |
| Nov 6, 2025 | Deichmann | 1–0 | Villca | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Vienna Game | |
| Nov 5, 2025 | Deichmann | 0–1 | Valerga | Round 2: Deichmann, Esteban Horacio - Valerga, Diego | Sicilian Defense: Kronberger Variation | |
| Nov 5, 2025 | Galleto | 0–1 | Deichmann | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | French Defense: Advance Variation, Ruisdonk Gambit | |
| Nov 3, 2025 | Laurel | 0–1 | Deichmann | XXXII Abierto Internacional ProAm Main Events FIDE. $15.000.000 en premios | Zukertort Opening: Kingside Fianchetto | |
| Jul 19, 2025 | Deichmann | 1–0 | Ocampos | Round 9: Deichmann, Esteban Horacio - Ocampos, Ian | Pirc Defense | |
| Jul 19, 2025 | Gibson | 1–0 | Deichmann | Round 8: Gibson, Tomas - Deichmann, Esteban Horacio | Benoni Defense: Old Benoni | |
| Jul 19, 2025 | Deichmann | 1–0 | Saldano | Round 7: Deichmann, Esteban Horacio - Saldano, Gonzalo | Bishop's Opening: Vienna Hybrid | |
| Jul 19, 2025 | Sorin | 1–0 | Deichmann | Round 6: Sorin, Ariel - Deichmann, Esteban Horacio | Benoni Defense: Old Benoni | |
| Jul 19, 2025 | Deichmann | 1–0 | Bonjorn | Round 5: Deichmann, Esteban Horacio - Bonjorn, Pablo | ? | |
| Jul 19, 2025 | Soria | 0–1 | Deichmann | Round 4: Soria, Angel - Deichmann, Esteban Horacio | French Defense: Classical Variation, Shirov-Anand Variation | |
| Jul 18, 2025 | Deichmann | 0–1 | Tempone | Round 3: Deichmann, Esteban Horacio - Tempone, Marcelo | Caro-Kann Defense: Advance Variation, Bayonet Attack | |
| Jul 17, 2025 | Deichmann | 0–1 | Garcia Palermo | Round 9: Deichmann, Esteban Horacio - Garcia Palermo, Carlos Horacio | Caro-Kann Defense: Advance Variation, Bayonet Attack | |
| Jul 14, 2025 | Slipak | 1–0 | Deichmann | Round 6: Slipak, Sergio - Deichmann, Esteban Horacio | Semi-Slav Defense | |
| Jul 12, 2025 | Deichmann | 0–1 | Cumpe | Round 3: Deichmann, Esteban Horacio - Cumpe, Lucas | French Defense: Steiner Variation | |
| Jun 28, 2025 | Gaitan | 1–0 | Deichmann | Round 9: Gaitan, Juan Manuel - Deichmann, Esteban Horacio | Queen's Gambit Declined: Marshall Defense, Tan Gambit | |
| Jun 28, 2025 | Deichmann | 1–0 | Bruno | Round 8: Deichmann, Esteban Horacio - Bruno, Alejandro P. | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Jun 28, 2025 | Liascovich | 1–0 | Deichmann | Round 5: Liascovich, Lucas - Deichmann, Esteban Horacio | Benoni Defense: Old Benoni | |
| Jun 27, 2025 | Deichmann | 0–1 | Villegas | Round 4: Deichmann, Esteban Horacio - Villegas, Franco | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Jun 27, 2025 | Spangenberg | 0–1 | Deichmann | Round 3: Spangenberg, Hugo - Deichmann, Esteban Horacio | French Defense: Classical Variation, Pollock Variation | |
| May 13, 2025 | Dolezal | 1–0 | Deichmann | Round 4: Dolezal, Cristian - Deichmann, Esteban Horacio | Queen's Gambit Declined: Exchange Variation | |
| Apr 3, 2025 | Deichmann | ½–½ | Schnaider | III Abierto Internacional de FAOGBA 2 al | Bishop's Opening: Vienna Hybrid | |
| Apr 2, 2025 | Deichmann | 1–0 | Rodriguez Vila | III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez | Hungarian Opening | |
| Apr 2, 2025 | Tokman | 1–0 | Deichmann | III Abierto Internacional de FAOGBA 2 al | Benoni Defense: Old Benoni | |
| Apr 2, 2025 | Fernandez | 1–0 | Deichmann | III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez | Benko Gambit Accepted: Fully Accepted Variation | |
| — | Deichmann | ½–½ | Maximiliano Perez | Round 4: Deichmann, Esteban Horacio - Maximiliano Perez | French Defense: Exchange Variation | |
| — | Deichmann | 0–1 | Villca | Round 6: Deichmann, Esteban Horacio - Villca, Julian | Blackmar-Diemer Gambit Accepted: Ziegler Defense | |
| — | Deichmann | 0–1 | Schnaider | Round 8: Deichmann, Esteban Horacio - Schnaider, Ilan | Scotch Game: Schmidt Variation | |
| — | Dolezal | ½–½ | Deichmann | Round 3: Dolezal, Cristian - Deichmann, Esteban Horacio | Rapport-Jobava System | |
| — | Carcamo | 0–1 | Deichmann | Round 5: Carcamo, Matias - Deichmann, Esteban Horacio | Zukertort Opening: Kingside Fianchetto | |
| — | Paveto | 0–1 | Deichmann | Round 7: Paveto, Kevin - Deichmann, Esteban Horacio | French Defense: Advance Variation, Euwe Variation | |
