| May 17, 2026 | Donoso Aguirre | ½–½ | Bahamondes Ortiz | 14° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Najdorf Variation | |
| May 17, 2026 | Barriga Silva | ½–½ | Donoso Aguirre | 14° CHESS BOSS - CHESS TOUR A | Ruy Lopez: Closed, Smyslov Defense | |
| May 17, 2026 | Donoso Aguirre | ½–½ | Garmendia Vega | 14° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Najdorf Variation | |
| May 16, 2026 | Tapia Fuentes | ½–½ | Donoso Aguirre | 14° CHESS BOSS - CHESS TOUR A | Scotch Game: Scotch Gambit, Advance Variation | |
| May 16, 2026 | Donoso Aguirre | ½–½ | Diaz Contreras | 14° CHESS BOSS - CHESS TOUR A | Philidor Defense | |
| May 15, 2026 | Miranda Camus | ½–½ | Donoso Aguirre | 14° CHESS BOSS - CHESS TOUR A | Ruy Lopez: Closed, Smyslov Defense | |
| May 15, 2026 | Valdes Berdichewsky | ½–½ | Donoso Aguirre | 14° CHESS BOSS - CHESS TOUR A | Rubinstein Opening | |
| Mar 15, 2026 | Donoso Aguirre | 1–0 | Valdes Berdichewsky | 13° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Najdorf Variation | |
| Mar 15, 2026 | Donoso Aguirre | 0–1 | Chacon Salinas | 13° CHESS BOSS - CHESS TOUR A | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Mar 15, 2026 | Diaz Contreras | 1–0 | Donoso Aguirre | 13° CHESS BOSS - CHESS TOUR A | Center Game: Hall Variation | |
| Mar 14, 2026 | Donoso Aguirre | 1–0 | Barriga Silva | 13° CHESS BOSS - CHESS TOUR A | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| Mar 14, 2026 | Aravena Navarro | 1–0 | Donoso Aguirre | 13° CHESS BOSS - CHESS TOUR A | Vienna Game: Vienna Gambit, Paulsen Attack | |
| Mar 14, 2026 | Guerrero Cataldo | 1–0 | Donoso Aguirre | 13° CHESS BOSS - CHESS TOUR A | Nimzo-Larsen Attack: Classical Variation | |
| Mar 13, 2026 | Donoso Aguirre | 0–1 | Bahamondes Ortiz | 13° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Najdorf Variation | |
| Feb 28, 2026 | Donoso Aguirre | 1–0 | Tapia Loncon | Round 11: Donoso Aguirre, Maximiliano - Tapia Loncon, Leonardo Elias | Sicilian Defense: Alapin Variation | |
| Feb 27, 2026 | Arias Diaz | 1–0 | Donoso Aguirre | Round 10: Arias Diaz, Javier Alonso - Donoso Aguirre, Maximiliano | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Feb 27, 2026 | Donoso Aguirre | ½–½ | Orellana Canelo | Round 9: Donoso Aguirre, Maximiliano - Orellana Canelo, Alvaro | Sicilian Defense: Alapin Variation, Stoltz Attack | |
| Feb 26, 2026 | Salinas Herrera | 1–0 | Donoso Aguirre | Round 8: Salinas Herrera, Pablo - Donoso Aguirre, Maximiliano | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Feb 25, 2026 | Donoso Aguirre | 1–0 | Miranda Camus | Round 7: Donoso Aguirre, Maximiliano - Miranda Camus, Joaquin Ignacio | Caro-Kann Defense: Two Knights Attack | |
| Feb 25, 2026 | Castro Salgado | ½–½ | Donoso Aguirre | Round 6: Castro Salgado, Pablo - Donoso Aguirre, Maximiliano | Queen's Gambit Declined | |
| Feb 24, 2026 | Donoso Aguirre | ½–½ | Jaque Gutierrez | Round 5: Donoso Aguirre, Maximiliano - Jaque Gutierrez, Matias | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Feb 23, 2026 | Lopez Silva | ½–½ | Donoso Aguirre | Round 4: Lopez Silva, Hugo - Donoso Aguirre, Maximiliano | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Feb 23, 2026 | Donoso Aguirre | ½–½ | Vasquez Toledo | Round 3: Donoso Aguirre, Maximiliano - Vasquez Toledo, Cristian | Four Knights Game | |
| Feb 22, 2026 | Nava Torrez | 0–1 | Donoso Aguirre | Round 2: Nava Torrez, Jonatan - Donoso Aguirre, Maximiliano | Queen's Pawn Game: Colle System, Traditional Colle | |
| Feb 8, 2026 | Hassler Medina | 0–1 | Donoso Aguirre | Ronda 9: Hassler Medina, Max Alonso - Donoso Aguirre, Maximiliano | Four Knights Game: Glek System | |
| Feb 7, 2026 | Donoso Aguirre | 1–0 | Saez Fernandez | Ronda 8: Donoso Aguirre, Maximiliano - Saez Fernandez, Agustin | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Feb 7, 2026 | Myers Cumsille | 1–0 | Donoso Aguirre | Ronda 7: Myers Cumsille, Cash Amaru - Donoso Aguirre, Maximiliano | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Feb 6, 2026 | Lodge Bravo | 0–1 | Donoso Aguirre | Ronda 6: Lodge Bravo, Lucas - Donoso Aguirre, Maximiliano | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Feb 5, 2026 | Donoso Aguirre | 1–0 | Chocair Quilaleo. Abraham Alejandro | Ronda 5: Donoso Aguirre, Maximiliano - Chocair Quilaleo. Abraham Alejandro | Sicilian Defense: Alapin Variation | |
| Feb 5, 2026 | Perez Rojas | ½–½ | Donoso Aguirre | Ronda 4: Perez Rojas, Felipe - Donoso Aguirre, Maximiliano | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Feb 4, 2026 | Donoso Aguirre | 1–0 | Hernandez Olave | Ronda 3: Donoso Aguirre, Maximiliano - Hernandez Olave, Angelo | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Feb 4, 2026 | Fuentes Chamorro | 0–1 | Donoso Aguirre | Ronda 2: Fuentes Chamorro, Javier - Donoso Aguirre, Maximiliano | Ruy Lopez: Closed | |
| Feb 3, 2026 | Donoso Aguirre | 1–0 | Barreda Cruz | Ronda 1: Donoso Aguirre, Maximiliano - Barreda Cruz, Said Alejandro | Sicilian Defense: Delayed Alapin Variation | |
| Jan 25, 2026 | Donoso Aguirre | 0–1 | Munoz Ramos | Round 9: Donoso Aguirre, Maximiliano - Munoz Ramos, Christopher | Sicilian Defense: Alapin Variation | |
| Jan 24, 2026 | Arias Diaz | ½–½ | Donoso Aguirre | Round 8: Arias Diaz, Miguel Angel - Donoso Aguirre, Maximiliano | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jan 24, 2026 | Hassler Medina | 1–0 | Donoso Aguirre | Round 7: Hassler Medina, Max Alonso - Donoso Aguirre, Maximiliano | Englund Gambit: Main Line | |
| Jan 23, 2026 | Donoso Aguirre | ½–½ | Castro Salgado | Round 6: Donoso Aguirre, Maximiliano - Castro Salgado, Pablo | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jan 22, 2026 | Contesse Vasquez | 0–1 | Donoso Aguirre | Round 5: Contesse Vasquez, Samuel - Donoso Aguirre, Maximiliano | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jan 22, 2026 | Donoso Aguirre | 1–0 | Munoz Tognarelli | Round 4: Donoso Aguirre, Maximiliano - Munoz Tognarelli, Diego | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jan 21, 2026 | Donoso Aguirre | 1–0 | Vrsalovic Acuna. Stjepan Antonio | Round 2: Donoso Aguirre, Maximiliano - Vrsalovic Acuna. Stjepan Antonio | Sicilian Defense: Alapin Variation, Stoltz Attack | |
| Jan 20, 2026 | Lopez Vivanco | 0–1 | Donoso Aguirre | Round 1: Lopez Vivanco, Gregorio - Donoso Aguirre, Maximiliano | Four Knights Game: Scotch Variation Accepted | |
| Jan 19, 2026 | Marrujo Pardo | 1–0 | Donoso Aguirre | Round 3: Marrujo Pardo, Mauricio Emmanuel - Donoso Aguirre, Maximiliano | English Opening: Agincourt Defense | |
| Jan 14, 2026 | Silva Sanchez | ½–½ | Donoso Aguirre | III Itt Temuco 2026 | Nimzo-Larsen Attack: Classical Variation | |
| Jan 13, 2026 | Donoso Aguirre | ½–½ | Bahamondes Ortiz | III Itt Temuco 2026 | Sicilian Defense: Alapin Variation, Stoltz Attack | |
| Jan 12, 2026 | Cortes Valdivia | 0–1 | Donoso Aguirre | III Itt Temuco 2026 | Ruy Lopez: Closed, Smyslov Defense | |
| Jan 12, 2026 | Donoso Aguirre | 1–0 | Parraguez Cornejo | III Itt Temuco 2026 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jan 11, 2026 | Zapata Sierra | 0–1 | Donoso Aguirre | III Itt Temuco 2026 | Queen's Pawn Game: Accelerated London System | |
| Jan 11, 2026 | Donoso Aguirre | ½–½ | Jimenez Jimenez | III Itt Temuco 2026 | Sicilian Defense: Alapin Variation | |
| Jan 10, 2026 | Donoso Aguirre | 0–1 | Elias Reyes | III Itt Temuco 2026 | Sicilian Defense: Alapin Variation | |
| Jan 9, 2026 | Juarez | 0–1 | Donoso Aguirre | III Itt Temuco 2026 | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Oct 5, 2025 | Donoso Aguirre | 1–0 | Izquierdo Garces | 12º CHESS BOSS - CHESS TOUR GRUPO B | Caro-Kann Defense: Two Knights Attack | |
| Oct 5, 2025 | Donoso Aguirre | 1–0 | Palma Araya | 12º CHESS BOSS - CHESS TOUR GRUPO B | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Oct 5, 2025 | Chavez Dinamarca | ½–½ | Donoso Aguirre | 12º CHESS BOSS - CHESS TOUR GRUPO B | Ruy Lopez: Closed, Smyslov Defense | |
| Oct 4, 2025 | Donoso Aguirre | 0–1 | Caurapan Montero | 12º CHESS BOSS - CHESS TOUR GRUPO B | Caro-Kann Defense: Two Knights Attack | |
| Oct 4, 2025 | Valdes Berdichewsky | ½–½ | Donoso Aguirre | 12º CHESS BOSS - CHESS TOUR GRUPO B | Queen's Pawn Game: London System | |
| Oct 4, 2025 | Lagos Inostroza | 1–0 | Donoso Aguirre | 12º CHESS BOSS - CHESS TOUR GRUPO B | Italian Game: Classical Variation, Center Attack | |
| Oct 3, 2025 | Donoso Aguirre | 1–0 | Miranda Camus | 12º CHESS BOSS - CHESS TOUR GRUPO B | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 17, 2025 | Donoso Aguirre | 1–0 | Sanchez Tobar | 11 CHESS BOSS - CHESS TOUR GRUPO B | Italian Game: Classical Variation, Greco Gambit | |
| Aug 17, 2025 | Diaz Dennett | 0–1 | Donoso Aguirre | 11 CHESS BOSS - CHESS TOUR GRUPO B | English Opening: Agincourt Defense, Wimpy System | |
| Aug 16, 2025 | Donoso Aguirre | ½–½ | Palma Araya | 11 CHESS BOSS - CHESS TOUR GRUPO B | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 16, 2025 | Gonzalez Culi | 1–0 | Donoso Aguirre | 11 CHESS BOSS - CHESS TOUR GRUPO B | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Aug 16, 2025 | Valdes Berdichewsky | ½–½ | Donoso Aguirre | 11 CHESS BOSS - CHESS TOUR GRUPO B | Queen's Pawn Game: Symmetrical Variation | |
| Aug 15, 2025 | Marin Munoz | ½–½ | Donoso Aguirre | 11 CHESS BOSS - CHESS TOUR GRUPO B | Ruy Lopez: Closed, Smyslov Defense | |
| Jul 15, 2025 | Paris | 1–0 | Donoso Aguirre | Round 7: Paris, Adolfo - Donoso Aguirre, Maximiliano | English Opening: Agincourt Defense | |
| Jul 12, 2025 | Donoso Aguirre | 0–1 | Gomez | Round 2: Donoso Aguirre, Maximiliano - Gomez, Carlos David | Sicilian Defense: Alapin Variation, Stoltz Attack | |
| May 25, 2025 | Branes Castillo | 0–1 | Donoso Aguirre | Ronda 7: Branes Castillo, Martin Hati - Donoso Aguirre, Maximiliano | Ruy Lopez: Closed, Smyslov Defense | |
| May 25, 2025 | Donoso Aguirre | 1–0 | Perez Rojas | Ronda 6: Donoso Aguirre, Maximiliano - Perez Rojas, Felipe | Sicilian Defense: Hyperaccelerated Pterodactyl | |
| May 24, 2025 | Nandwani Narwani | 0–1 | Donoso Aguirre | Ronda 5: Nandwani Narwani, Suraj Sriram - Donoso Aguirre, Maximiliano | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 23, 2025 | Allende Munoz | ½–½ | Donoso Aguirre | Ronda 3: Allende Munoz, Daniel Alonso - Donoso Aguirre, Maximiliano | Ruy Lopez: Exchange Variation, Normal Variation | |
| May 23, 2025 | Donoso Aguirre | 1–0 | Claret Pinto | Ronda 2: Donoso Aguirre, Maximiliano - Claret Pinto, Maximiliano Agustin | Sicilian Defense: Alapin Variation, Stoltz Attack | |
| May 23, 2025 | Huanca Vargas | 0–1 | Donoso Aguirre | Ronda 1: Huanca Vargas, Luis Faviano - Donoso Aguirre, Maximiliano | Italian Game: Giuoco Piano | |
| Apr 13, 2025 | Donoso Aguirre | ½–½ | Perez Rojas | 10º CHESS BOSS - CHESS TOUR GRUPO C | Sicilian Defense: Alapin Variation | |
| Apr 13, 2025 | Donoso Aguirre | ½–½ | Galaz Quinones | 10º CHESS BOSS - CHESS TOUR GRUPO C | Modern Defense | |
| Apr 13, 2025 | Marin Munoz | * | Donoso Aguirre | 10º CHESS BOSS - CHESS TOUR GRUPO C | ? | |
| Apr 12, 2025 | Donoso Aguirre | 1–0 | Lodge Bravo | 10º CHESS BOSS - CHESS TOUR GRUPO C | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Apr 12, 2025 | Cabezas Tiznado | ½–½ | Donoso Aguirre | 10º CHESS BOSS - CHESS TOUR GRUPO C | Queen's Gambit Declined: Barmen Variation | |
| Apr 12, 2025 | Izquierdo Garces | 0–1 | Donoso Aguirre | 10º CHESS BOSS - CHESS TOUR GRUPO C | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Apr 11, 2025 | Donoso Aguirre | 1–0 | Fuenzalida Orellana | 10º CHESS BOSS - CHESS TOUR GRUPO C | Sicilian Defense: Alapin Variation, Stoltz Attack | |
| Mar 15, 2025 | Perez Garcia | ½–½ | Donoso Aguirre | ZONAL 2.5 ABSOLUTO CHILE 2025 | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Mar 14, 2025 | Donoso Aguirre | 1–0 | Hutt | ZONAL 2.5 ABSOLUTO CHILE 2025 | Sicilian Defense: Hyperaccelerated Pterodactyl | |
| Mar 13, 2025 | Farfan Ortiz | 1–0 | Donoso Aguirre | ZONAL 2.5 ABSOLUTO CHILE 2025 | Queen's Pawn Game: Colle System, Traditional Colle | |
| Mar 10, 2025 | Donoso Aguirre | 0–1 | Larrea | ZONAL 2.5 ABSOLUTO CHILE 2025 | Sicilian Defense: Alapin Variation, Stoltz Attack | |
| Mar 9, 2025 | Tokman | ½–½ | Donoso Aguirre | ZONAL 2.5 ABSOLUTO CHILE 2025 | Queen's Gambit Declined: Barmen Variation | |
| Feb 8, 2025 | Donoso Aguirre | ½–½ | Perez Rojas | Ronda 7: Donoso Aguirre, Maximiliano - Perez Rojas, Felipe | Sicilian Defense: Alapin Variation | |
| Feb 8, 2025 | Lodge Bravo | 1–0 | Donoso Aguirre | Ronda 8: Lodge Bravo, Lucas - Donoso Aguirre, Maximiliano | Italian Game: Classical Variation, Greco Gambit, Traditional Line | |
| Feb 7, 2025 | Bruna Poblete | ½–½ | Donoso Aguirre | Ronda 6: Bruna Poblete, Emilio - Donoso Aguirre, Maximiliano | Ruy Lopez: Closed, Smyslov Defense | |
| Feb 6, 2025 | Donoso Aguirre | 1–0 | Branes Castillo | Ronda 5: Donoso Aguirre, Maximiliano - Branes Castillo, Martin Hati | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Sep 29, 2024 | Donoso Aguirre | ½–½ | Perez Rojas | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | Sicilian Defense: Alapin Variation, Barmen Defense, Modern Line | |
| Sep 29, 2024 | Estay Torreblanca | ½–½ | Donoso Aguirre | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | Queen's Pawn Game: Symmetrical Variation | |
| Sep 29, 2024 | Diaz Contreras | ½–½ | Donoso Aguirre | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | Italian Game: Giuoco Piano | |
| Sep 28, 2024 | Donoso Aguirre | * | Rebolledo Arias | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Sep 28, 2024 | Donoso Aguirre | 0–1 | Perez Rojas | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | Sicilian Defense: Hyperaccelerated Pterodactyl | |
| Sep 28, 2024 | Farfan Ortiz | 1–0 | Donoso Aguirre | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | French Defense: Steiner Variation | |
| Sep 27, 2024 | Henriquez Hidalgo | 1–0 | Donoso Aguirre | NOVENO CHESS BOSS - CHESS TOUR GRUPO B | Queen's Gambit Declined: Barmen Variation | |
| Jun 29, 2024 | Reyes Zavaleta | 1–0 | Donoso Aguirre | Round 9: Reyes Zavaleta, Diego Alexander - Donoso Aguirre, Maximiliano | Queen's Pawn Game | |
| Jun 28, 2024 | Donoso Aguirre | ½–½ | Ojeda Arevalo | Round 8: Donoso Aguirre, Maximiliano - Ojeda Arevalo, Agustin | Italian Game: Classical Variation, Greco Gambit | |
| Jun 28, 2024 | Vera Villa | ½–½ | Donoso Aguirre | Round 7: Vera Villa, Ignacio Antonio - Donoso Aguirre, Maximiliano | Rapport-Jobava System | |
| Jun 26, 2024 | Miranda Camus | 1–0 | Donoso Aguirre | Round 5: Miranda Camus, Joaquin Ignacio - Donoso Aguirre, Maximiliano | Queen's Pawn Game: Accelerated London System | |
| Jun 25, 2024 | Zhong | 1–0 | Donoso Aguirre | Round 3: Zhong, Ryan Yunhui - Donoso Aguirre, Maximiliano | Scotch Game: Schmidt Variation | |
| Jun 24, 2024 | Donoso Aguirre | ½–½ | Palma Araya | Round 2: Donoso Aguirre, Maximiliano - Palma Araya, David | Italian Game: Classical Variation, Greco Gambit | |