| Jan 31, 2026 | Illanes | 1–0 | Donoso Simonetti | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Jan 31, 2026 | Donoso Simonetti | 0–1 | Guerrero Cataldo | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Sicilian Defense: Hyperaccelerated Dragon | |
| Jan 30, 2026 | Cordero Alchahueni | 0–1 | Donoso Simonetti | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Semi-Slav Defense: Quiet Variation | |
| Jan 29, 2026 | Donoso Simonetti | 1–0 | Lastra San Martin | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Sicilian Defense: Hyperaccelerated Dragon | |
| Jan 29, 2026 | Gutierrez Gomez | ½–½ | Donoso Simonetti | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Sicilian Defense: Modern Variations | |
| Jan 28, 2026 | Donoso Simonetti | 0–1 | Vasquez Schroeder | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jan 27, 2026 | Figueroa Estay | 0–1 | Donoso Simonetti | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Sicilian Defense: Modern Variations | |
| Jan 27, 2026 | Donoso Simonetti | 1–0 | Tapia Trevilcock | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | Italian Game: Classical Variation | |
| Jan 26, 2026 | Elias Reyes | 1–0 | Donoso Simonetti | I CHESS OPEN SANTIAGO 2026 - CLUB DE AJEDREZ DE CHILE | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Nov 13, 2025 | Donoso Simonetti | 1–0 | Kalikhan | Round 9: Donoso Simonetti, Alvaro Matias - Kalikhan, Abilmansur | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Nov 12, 2025 | Abuzyarov | 1–0 | Donoso Simonetti | Round 8: Abuzyarov, Arlan - Donoso Simonetti, Alvaro Matias | Catalan Opening: Closed, Main Line | |
| Nov 11, 2025 | Asanakunov | ½–½ | Donoso Simonetti | Round 7: Asanakunov, Zhumagazy - Donoso Simonetti, Alvaro Matias | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Nov 10, 2025 | Donoso Simonetti | 1–0 | Sharma Pankaj | Round 6: Donoso Simonetti, Alvaro Matias - Sharma Pankaj | French Defense: Advance Variation, Euwe Variation | |
| Nov 9, 2025 | Donoso Simonetti | 1–0 | Jaspreet Singh | Round 5: Donoso Simonetti, Alvaro Matias - Jaspreet Singh | Scandinavian Defense: Valencian Variation | |
| Nov 8, 2025 | Mukhtarov | 1–0 | Donoso Simonetti | Round 4: Mukhtarov, Kanan - Donoso Simonetti, Alvaro Matias | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Nov 7, 2025 | Donoso Simonetti | 1–0 | Chua | Round 3: Donoso Simonetti, Alvaro Matias - Chua, Jing Yuan Cyril | Four Knights Game: Glek System | |
| Nov 6, 2025 | Sulaimanov | ½–½ | Donoso Simonetti | Round 2: Sulaimanov, Tilekmatali - Donoso Simonetti, Alvaro Matias | Queen's Pawn Game: Symmetrical Variation | |
| Nov 5, 2025 | Donoso Simonetti | 1–0 | Zaklan | Round 1: Donoso Simonetti, Alvaro Matias - Zaklan, Petar | Caro-Kann Defense: Endgame Offer | |
| Apr 16, 2025 | Donoso Simonetti | 0–1 | Hernandez Guerrero | Ronda 3: Donoso Simonetti, Alvaro Matias - Hernandez Guerrero, Gilberto | Alekhine Defense: Exchange Variation, Voronezh Variation | |
| Apr 15, 2025 | Arribas Robaina | 1–0 | Donoso Simonetti | Ronda 2: Arribas Robaina, Maritza - Donoso Simonetti, Alvaro Matias | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Apr 14, 2025 | Donoso Simonetti | 1–0 | Gonzalez Zamora | Ronda 1: Donoso Simonetti, Alvaro Matias - Gonzalez Zamora, Juan Carlos | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Oct 25, 2022 | Donoso Simonetti | 0–1 | Navarro Rico | World Amateur CC U2000 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Oct 24, 2022 | Donoso Simonetti | ½–½ | Hurtado Bahamonde | World Amateur CC U2000 | Sicilian Defense: O'Kelly Variation, Réti System | |
| Oct 22, 2022 | Donoso Simonetti | * | Medeiros | World Amateur CC U2000 | Sicilian Defense: Grand Prix Attack | |
