| May 17, 2026 | Miranda Camus | 1–0 | Diaz Contreras | 14° CHESS BOSS - CHESS TOUR A | Queen's Pawn Game: Symmetrical Variation | |
| May 17, 2026 | Diaz Contreras | ½–½ | Bahamondes Ortiz | 14° CHESS BOSS - CHESS TOUR A | French Defense: Rubinstein Variation, Blackburne Defense | |
| May 16, 2026 | Barriga Silva | 1–0 | Diaz Contreras | 14° CHESS BOSS - CHESS TOUR A | Italian Game: Paris Defense | |
| May 16, 2026 | Diaz Contreras | ½–½ | Garmendia Vega | 14° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Prins Variation | |
| May 16, 2026 | Donoso Aguirre | ½–½ | Diaz Contreras | 14° CHESS BOSS - CHESS TOUR A | Philidor Defense | |
| May 15, 2026 | Diaz Contreras | 1–0 | Tapia Fuentes | 14° CHESS BOSS - CHESS TOUR A | Caro-Kann Defense: Advance Variation | |
| May 15, 2026 | Diaz Contreras | ½–½ | Valdes Berdichewsky | 14° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Moscow Variation, Main Line | |
| May 14, 2026 | Diaz Contreras | 0–1 | Leon Nanjari | Round 9: Diaz Contreras, Pedro - Leon Nanjari, Rodrigo | Sicilian Defense: Scheveningen Variation, Classical Variation | |
| May 11, 2026 | Palma Neira | 1–0 | Diaz Contreras | Round 8: Palma Neira, Eliseo Maximiliano - Diaz Contreras, Pedro | English Opening | |
| May 7, 2026 | Diaz Contreras | ½–½ | Valdes Escobar | Round 7: Diaz Contreras, Pedro - Valdes Escobar, Alvaro | Sicilian Defense: Chekhover Variation | |
| May 4, 2026 | Oliva Olave | 0–1 | Diaz Contreras | Round 6: Oliva Olave, Carlos - Diaz Contreras, Pedro | Trompowsky Attack: Classical Defense | |
| Mar 19, 2026 | Sandoval Sepulveda | 0–1 | Diaz Contreras | Ronda 9: Sandoval Sepulveda, Gustavo Ad - Diaz Contreras, Pedro | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Mar 18, 2026 | Diaz Contreras | 1–0 | Barriga Vera | Ronda 8: Diaz Contreras, Pedro - Barriga Vera, Aaron Joshua | Center Game: Normal Variation | |
| Mar 17, 2026 | Vilches Romero | ½–½ | Diaz Contreras | Ronda 7: Vilches Romero, Eduardo - Diaz Contreras, Pedro | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Mar 15, 2026 | Diaz Contreras | 0–1 | Barriga Silva | 13° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Kan Variation, Modern Variation | |
| Mar 15, 2026 | Diaz Contreras | 1–0 | Donoso Aguirre | 13° CHESS BOSS - CHESS TOUR A | Center Game: Hall Variation | |
| Mar 15, 2026 | Guerrero Cataldo | 1–0 | Diaz Contreras | 13° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Mar 14, 2026 | Diaz Contreras | 0–1 | Bahamondes Ortiz | 13° CHESS BOSS - CHESS TOUR A | Richter-Veresov Attack | |
| Mar 14, 2026 | Aravena Navarro | 1–0 | Diaz Contreras | 13° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Godiva Variation | |
| Mar 13, 2026 | Chacon Salinas | 1–0 | Diaz Contreras | 13° CHESS BOSS - CHESS TOUR A | Bogo-Indian Defense: Retreat Variation | |
| Mar 13, 2026 | Valdes Berdichewsky | ½–½ | Diaz Contreras | 13° CHESS BOSS - CHESS TOUR A | Queen's Gambit Declined: Barmen Variation | |
| Mar 4, 2026 | Vergara Castillo | 0–1 | Diaz Contreras | Ronda 2: Vergara Castillo, Boris - Diaz Contreras, Pedro | Benoni Defense: French Benoni | |
| Mar 3, 2026 | Diaz Contreras | 1–0 | Lucero Fuentes | Ronda 1: Diaz Contreras, Pedro - Lucero Fuentes, Orlando | Indian Defense | |
| Mar 2, 2026 | Diaz Contreras | 0–1 | Vasquez Schroeder | Ronda 6: Diaz Contreras, Pedro - Vasquez Schroeder, Rodrigo | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Mar 2, 2026 | Diaz Contreras | 1–0 | Chacon Salinas | Ronda 5: Diaz Contreras, Pedro - Chacon Salinas, Cesar | Kádas Opening | |
| Mar 2, 2026 | Guerrero Cataldo | 0–1 | Diaz Contreras | Ronda 4: Guerrero Cataldo, Juan Andres - Diaz Contreras, Pedro | Queen's Pawn Game: Symmetrical Variation | |
| Mar 2, 2026 | Diaz Contreras | 1–0 | Bustos Perez | Ronda 3: Diaz Contreras, Pedro - Bustos Perez, Luis | Sicilian Defense: Moscow Variation | |
| Feb 28, 2026 | Diaz Contreras | 0–1 | Miranda Camus | Round 11: Diaz Contreras, Pedro - Miranda Camus, Joaquin Ignacio | Caro-Kann Defense: Advance Variation | |
| Feb 27, 2026 | Munoz Ramos | ½–½ | Diaz Contreras | Round 10: Munoz Ramos, Christopher - Diaz Contreras, Pedro | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Feb 27, 2026 | Diaz Contreras | 1–0 | Vasquez Toledo | Round 9: Diaz Contreras, Pedro - Vasquez Toledo, Cristian | Four Knights Game | |
| Feb 26, 2026 | Vargas Maliqueo | 0–1 | Diaz Contreras | Round 8: Vargas Maliqueo, Ivan Patricio - Diaz Contreras, Pedro | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Feb 25, 2026 | Diaz Contreras | ½–½ | Arias Diaz | Round 7: Diaz Contreras, Pedro - Arias Diaz, Javier Alonso | Richter-Veresov Attack | |
| Feb 25, 2026 | Cuevas Araya | ½–½ | Diaz Contreras | Round 6: Cuevas Araya, Walter - Diaz Contreras, Pedro | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Feb 24, 2026 | Diaz Contreras | 0–1 | Salinas Herrera | Round 5: Diaz Contreras, Pedro - Salinas Herrera, Pablo | Vienna Game: Falkbeer Variation | |
| Feb 23, 2026 | Caurapan Montero | 0–1 | Diaz Contreras | Round 4: Caurapan Montero, Eduardo - Diaz Contreras, Pedro | Catalan Opening: Open Defense | |
| Feb 23, 2026 | Diaz Contreras | ½–½ | Perez Rojas | Round 3: Diaz Contreras, Pedro - Perez Rojas, Jorge | French Defense: McCutcheon Variation, Lasker Variation | |
| Feb 22, 2026 | Contreras Suazo | 0–1 | Diaz Contreras | Round 2: Contreras Suazo, Ricardo - Diaz Contreras, Pedro | English Opening: Agincourt Defense | |
| Feb 22, 2026 | Diaz Contreras | 1–0 | Contreras Suazo | Round 1: Diaz Contreras, Pedro - Contreras Suazo, Rocio | Amazon Attack: Siberian Attack | |
| Jan 31, 2026 | Marrujo Pardo | 1–0 | Diaz Contreras | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Ruy Lopez: Marshall Attack, Modern Variation | |
| Jan 31, 2026 | Diaz Contreras | 1–0 | Lopez Miller | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Sicilian Defense: O'Kelly Variation, Maróczy Bind | |
| Jan 30, 2026 | Chavez Dinamarca | 0–1 | Diaz Contreras | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jan 29, 2026 | Diaz Contreras | 1–0 | Gonzalez Morales | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Indian Defense | |
| Jan 29, 2026 | Elias Reyes | 1–0 | Diaz Contreras | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Italian Game: Paris Defense | |
| Jan 28, 2026 | Diaz Contreras | 1–0 | Gutierrez Montes | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Sicilian Defense: Closed, Traditional | |
| Jan 27, 2026 | Henriquez Hidalgo | ½–½ | Diaz Contreras | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Ruy Lopez | |
| Jan 27, 2026 | Diaz Contreras | 1–0 | Cuevas Araya | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Jan 26, 2026 | Fica Cruz | 0–1 | Diaz Contreras | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Jun 6, 2025 | Diaz Contreras | ½–½ | Vera Villa | CLUB DE AJEDREZ CHILE - INTERCLUBES 100 ANOS - CLUB DE AJEDREZ CHILE 2025 | Center Game: Paulsen Attack Variation | |
| Jun 2, 2025 | Diaz Contreras | 1–0 | Pereira Cid | CLUB DE AJEDREZ CHILE - INTERCLUBES 100 ANOS - CLUB DE AJEDREZ CHILE 2025 | French Defense: Classical Variation, Shirov-Anand Variation | |
| May 30, 2025 | Diaz Contreras | ½–½ | Guerrero Cataldo | CLUB DE AJEDREZ CHILE - INTERCLUBES 100 ANOS - CLUB DE AJEDREZ CHILE 2025 | Caro-Kann Defense: Karpov Variation | |
| May 27, 2025 | Diaz Contreras | 1–0 | Tapia Fuentes | CLUB DE AJEDREZ CHILE - INTERCLUBES 100 ANOS - CLUB DE AJEDREZ CHILE 2025 | Sicilian Defense: Moscow Variation | |
| May 23, 2025 | Diaz Contreras | 1–0 | Canales Bustamante | CLUB DE AJEDREZ CHILE - INTERCLUBES 100 ANOS - CLUB DE AJEDREZ CHILE 2025 | Sicilian Defense: Moscow Variation | |
| May 19, 2025 | Garcia Pacheco | 0–1 | Diaz Contreras | CLUB DE AJEDREZ CHILE - INTERCLUBES 100 ANOS - CLUB DE AJEDREZ CHILE 2025 | Sicilian Defense: Old Sicilian | |
| May 15, 2025 | Diaz Contreras | 1–0 | Vigil | CLUB DE AJEDREZ CHILE - INTERCLUBES 100 ANOS - CLUB DE AJEDREZ CHILE 2025 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| May 13, 2025 | Henriquez Hidalgo | ½–½ | Diaz Contreras | CLUB DE AJEDREZ CHILE - INTERCLUBES 100 ANOS - CLUB DE AJEDREZ CHILE 2025 | Sicilian Defense: O'Kelly Variation, Venice System | |
| May 9, 2025 | Diaz Contreras | 1–0 | Baltazar | CLUB DE AJEDREZ CHILE - INTERCLUBES 100 ANOS - CLUB DE AJEDREZ CHILE 2025 | Pirc Defense | |
| May 5, 2025 | Calcagno Soto | 0–1 | Diaz Contreras | CLUB DE AJEDREZ CHILE - INTERCLUBES 100 ANOS - CLUB DE AJEDREZ CHILE 2025 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Apr 13, 2025 | Diaz Contreras | ½–½ | Caceres Leal | 10° CHESS BOSS - CHESS TOUR A | Alekhine Defense: Four Pawns Attack, Trifunovic Variation | |
| Apr 13, 2025 | Arias Diaz | 0–1 | Diaz Contreras | 10° CHESS BOSS - CHESS TOUR A | Queen's Gambit Accepted: Normal Variation | |
| Apr 13, 2025 | Aravena Navarro | 0–1 | Diaz Contreras | 10° CHESS BOSS - CHESS TOUR A | Sicilian Defense: O'Kelly Variation, Maróczy Bind, Paulsen Line | |
| Apr 12, 2025 | Diaz Contreras | ½–½ | Bahamondes Ortiz | 10° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Moscow Variation | |
| Apr 12, 2025 | Diaz Contreras | 0–1 | Torres Bravo | 10° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Moscow Variation | |
| Apr 12, 2025 | Chacon Salinas | ½–½ | Diaz Contreras | 10° CHESS BOSS - CHESS TOUR A | Catalan Opening: Open Defense, Modern Sharp Variation | |
| Apr 11, 2025 | Diaz Contreras | 0–1 | Gasic Merino | 10° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Moscow Variation | |
| Feb 20, 2025 | Orrego Palermo | 0–1 | Diaz Contreras | CENTENARIO CHESS MASTERS GRUPO B | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Feb 19, 2025 | Diaz Contreras | ½–½ | Henriquez Hidalgo | CENTENARIO CHESS MASTERS GRUPO B | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Feb 19, 2025 | Cuevas Araya | 0–1 | Diaz Contreras | CENTENARIO CHESS MASTERS GRUPO B | Sicilian Defense: Closed, Traditional | |
| Feb 18, 2025 | Diaz Contreras | 1–0 | Miranda Camus | CENTENARIO CHESS MASTERS GRUPO B | Caro-Kann Defense: Karpov Variation | |
| Feb 18, 2025 | Chavez Dinamarca | 0–1 | Diaz Contreras | CENTENARIO CHESS MASTERS GRUPO B | Zukertort Opening | |
| Feb 17, 2025 | Diaz Contreras | 0–1 | Chacon Salinas | CENTENARIO CHESS MASTERS GRUPO B | ? | |
| Feb 17, 2025 | Bombardiere Castro | 0–1 | Diaz Contreras | CENTENARIO CHESS MASTERS GRUPO B | Pseudo Queen's Indian Defense | |
| Nov 7, 2024 | Barriga Vera | 0–1 | Diaz Contreras | CLUB DE AJEDREZ CHILE - TORNEO INTERCLUBES 100 AÑOS CLAUSURA 2024 | Queen's Pawn Game: Colle System | |
| Nov 4, 2024 | Diaz Contreras | 1–0 | Vilches Romero | CLUB DE AJEDREZ CHILE - TORNEO INTERCLUBES 100 AÑOS CLAUSURA 2024 | King's Pawn Game | |
| Oct 28, 2024 | Tuteleers Korner | 0–1 | Diaz Contreras | CLUB DE AJEDREZ CHILE - TORNEO INTERCLUBES 100 AÑOS CLAUSURA 2024 | Semi-Slav Defense: Chigorin Defense | |
| Oct 24, 2024 | Escudero Donoso | ½–½ | Diaz Contreras | CLUB DE AJEDREZ CHILE - TORNEO INTERCLUBES 100 AÑOS CLAUSURA 2024 | Catalan Opening: Open Defense | |
| Oct 21, 2024 | Diaz Contreras | 1–0 | Alvarez Sepulveda | CLUB DE AJEDREZ CHILE - TORNEO INTERCLUBES 100 AÑOS CLAUSURA 2024 | Center Game: Berger Variation | |
| Oct 17, 2024 | Diaz Contreras | 1–0 | Galleguillos Alvarado | CLUB DE AJEDREZ CHILE - TORNEO INTERCLUBES 100 AÑOS CLAUSURA 2024 | Caro-Kann Defense: Karpov Variation | |
| Oct 10, 2024 | Munoz Ramos | 1–0 | Diaz Contreras | CLUB DE AJEDREZ CHILE - TORNEO INTERCLUBES 100 AÑOS CLAUSURA 2024 | Semi-Slav Defense: Normal Variation | |
| Sep 29, 2024 | Diaz Contreras | 1–0 | Farfan Ortiz | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | French Defense: Rubinstein Variation, Blackburne Defense | |
| Sep 29, 2024 | Diaz Contreras | ½–½ | Donoso Aguirre | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | Italian Game: Giuoco Piano | |
| Sep 29, 2024 | Estay Torreblanca | 0–1 | Diaz Contreras | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | Queen's Pawn Game: Accelerated London System | |
| Sep 28, 2024 | Diaz Contreras | 0–1 | Perez Rojas | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | French Defense: MacCutcheon Variation, Wolf Gambit | |
| Sep 28, 2024 | Perez Rojas | * | Diaz Contreras | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Sep 28, 2024 | Henriquez Hidalgo | ½–½ | Diaz Contreras | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Sep 27, 2024 | Diaz Contreras | 1–0 | Rebolledo Arias | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | Sicilian Defense: Moscow Variation | |
| — | Diaz Contreras | ½–½ | Bahamondes Ortiz | 11 CHESS BOSS - CHESS TOUR GRUPO A | Sicilian Defense: Moscow Variation | |
| — | Aravena Navarro | ½–½ | Diaz Contreras | 11 CHESS BOSS - CHESS TOUR GRUPO A | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| — | Orrego Palermo | 0–1 | Diaz Contreras | 11 CHESS BOSS - CHESS TOUR GRUPO A | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| — | Diaz Contreras | 1–0 | Hernandez Riera | 11 CHESS BOSS - CHESS TOUR GRUPO A | Caro-Kann Defense: Tartakower Variation | |
| — | Diaz Contreras | 1–0 | Tapia Fuentes | 11 CHESS BOSS - CHESS TOUR GRUPO A | Sicilian Defense: Moscow Variation, Main Line | |
| — | Henriquez Hidalgo | 0–1 | Diaz Contreras | 11 CHESS BOSS - CHESS TOUR GRUPO A | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| — | Diaz Contreras | 0–1 | Garmendia Vega | 11 CHESS BOSS - CHESS TOUR GRUPO A | Sicilian Defense: Moscow Variation | |
| — | Diaz Contreras | ½–½ | Marrujo Pardo | 12° CHESS BOSS - CHESS TOUR A | Vienna Game: Falkbeer Variation | |
| — | Jaque Gutierrez | 1–0 | Diaz Contreras | 12° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| — | Bahamondes Ortiz | ½–½ | Diaz Contreras | 12° CHESS BOSS - CHESS TOUR A | Catalan Opening: Closed | |
| — | Diaz Contreras | ½–½ | Miranda Camus | 12° CHESS BOSS - CHESS TOUR A | Caro-Kann Defense: Classical Variation, Lobron System | |
| — | Diaz Contreras | ½–½ | Vasquez Toledo | 12° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| — | Farfan Ortiz | 0–1 | Diaz Contreras | 12° CHESS BOSS - CHESS TOUR A | English Opening: Symmetrical Variation | |
| — | Diaz Contreras | 1–0 | Garmendia Vega | 12º CHESS BOSS - CHESS TOUR A | Center Game: Hall Variation | |