| May 15, 2026 | Diaz Contreras | ½–½ | Valdes Berdichewsky | 14° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Moscow Variation, Main Line | |
| May 15, 2026 | Valdes Berdichewsky | ½–½ | Garmendia Vega | 14° CHESS BOSS - CHESS TOUR A | Benoni Defense: Knight's Tour Variation | |
| May 15, 2026 | Miranda Camus | 1–0 | Valdes Berdichewsky | 14° CHESS BOSS - CHESS TOUR A | Queen's Pawn Game: Barry Attack | |
| May 15, 2026 | Valdes Berdichewsky | ½–½ | Donoso Aguirre | 14° CHESS BOSS - CHESS TOUR A | Rubinstein Opening | |
| May 15, 2026 | Bahamondes Ortiz | 1–0 | Valdes Berdichewsky | 14° CHESS BOSS - CHESS TOUR A | King's Indian Defense: Normal Variation, Rare Defenses | |
| May 15, 2026 | Valdes Berdichewsky | 1–0 | Tapia Fuentes | 14° CHESS BOSS - CHESS TOUR A | Benoni Defense: Knight's Tour Variation | |
| May 15, 2026 | Barriga Silva | 0–1 | Valdes Berdichewsky | 14° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Closed | |
| Mar 15, 2026 | Valdes Berdichewsky | 1–0 | Aravena Navarro | 13° CHESS BOSS - CHESS TOUR A | Benko Gambit Accepted: Fully Accepted Variation | |
| Mar 15, 2026 | Donoso Aguirre | 1–0 | Valdes Berdichewsky | 13° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Najdorf Variation | |
| Mar 15, 2026 | Chacon Salinas | 0–1 | Valdes Berdichewsky | 13° CHESS BOSS - CHESS TOUR A | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Rare Line | |
| Mar 14, 2026 | Valdes Berdichewsky | ½–½ | Bahamondes Ortiz | 13° CHESS BOSS - CHESS TOUR A | Queen's Gambit Declined: Tartakower Defense | |
| Mar 14, 2026 | Guerrero Cataldo | 1–0 | Valdes Berdichewsky | 13° CHESS BOSS - CHESS TOUR A | Trompowsky Attack | |
| Mar 13, 2026 | Valdes Berdichewsky | ½–½ | Diaz Contreras | 13° CHESS BOSS - CHESS TOUR A | Queen's Gambit Declined: Barmen Variation | |
| Mar 13, 2026 | Barriga Silva | 1–0 | Valdes Berdichewsky | 13° CHESS BOSS - CHESS TOUR A | Sicilian Defense: Closed, Botvinnik Defense, with Nge2 | |
| Feb 28, 2026 | Valdes Berdichewsky | 0–1 | Munoz Ramos | Round 11: Valdes Berdichewsky, Lucas Gaspar - Munoz Ramos, Christopher | Slav Defense: Quiet Variation, Pin Defense | |
| Feb 27, 2026 | Lagos Inostroza | 0–1 | Valdes Berdichewsky | Round 10: Lagos Inostroza, Andres - Valdes Berdichewsky, Lucas Gaspar | Sicilian Defense: Najdorf Variation, Freak Attack | |
| Feb 27, 2026 | Valdes Berdichewsky | 0–1 | Lopez Silva | Round 9: Valdes Berdichewsky, Lucas Gaspar - Lopez Silva, Hugo | King's Indian Defense: Orthodox Variation | |
| Feb 26, 2026 | Jaque Gutierrez | 0–1 | Valdes Berdichewsky | Round 8: Jaque Gutierrez, Matias - Valdes Berdichewsky, Lucas Gaspar | Sicilian Defense: Moscow Variation, Haag Gambit | |
| Feb 25, 2026 | Valdes Berdichewsky | 1–0 | Orellana Canelo | Round 7: Valdes Berdichewsky, Lucas Gaspar - Orellana Canelo, Alvaro | Slav Defense: Quiet Variation, Pin Defense | |
| Feb 25, 2026 | Miranda Camus | ½–½ | Valdes Berdichewsky | Round 6: Miranda Camus, Joaquin Ignacio - Valdes Berdichewsky, Lucas Gaspar | Queen's Pawn Game: Barry Attack | |
| Feb 24, 2026 | Valdes Berdichewsky | ½–½ | Castro Salgado | Round 5: Valdes Berdichewsky, Lucas Gaspar - Castro Salgado, Pablo | Semi-Slav Defense: Accelerated Meran Variation | |
| Feb 23, 2026 | Salinas Herrera | 1–0 | Valdes Berdichewsky | Round 4: Salinas Herrera, Pablo - Valdes Berdichewsky, Lucas Gaspar | Sicilian Defense: Old Sicilian | |
| Feb 23, 2026 | Valdes Berdichewsky | 1–0 | Olivares Olivares | Round 3: Valdes Berdichewsky, Lucas Gaspar - Olivares Olivares, Claudio | Benoni Defense: Knight's Tour Variation | |
| Feb 8, 2026 | Valdes Berdichewsky | ½–½ | Huichicoy Gonzalez | Ronda 9: Valdes Berdichewsky, Lucas Gaspar - Huichicoy Gonzalez, Pablo | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Feb 4, 2026 | Valdes Berdichewsky | 1–0 | Bustos Perez | Ronda 3: Valdes Berdichewsky, Lucas Gaspar - Bustos Perez, Luis | Rat Defense: English Rat | |
| Feb 4, 2026 | Fuentes Caceres | 0–1 | Valdes Berdichewsky | Ronda 2: Fuentes Caceres, Jose Tomas - Valdes Berdichewsky, Lucas Gaspar | Benoni Defense: Classical Variation, New York Variation | |
| Feb 3, 2026 | Valdes Berdichewsky | 1–0 | Lara Martinez | Ronda 1: Valdes Berdichewsky, Lucas Gaspar - Lara Martinez, Gabriel Nehemias | King's Indian Defense: Makogonov Variation | |
| Feb 2, 2026 | Munoz Ramos | ½–½ | Valdes Berdichewsky | Ronda 8: Munoz Ramos, Christopher - Valdes Berdichewsky, Lucas Gaspar | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Feb 2, 2026 | Valdes Berdichewsky | 1–0 | Palma Guitard | Ronda 7: Valdes Berdichewsky, Lucas Gaspar - Palma Guitard, Lautaro | King's Indian Defense: Orthodox Variation | |
| Feb 2, 2026 | Guerra Mansilla | ½–½ | Valdes Berdichewsky | Ronda 6: Guerra Mansilla, Jorge Maximilian - Valdes Berdichewsky, Lucas Gaspar | King's Indian Defense: Semi-Averbakh System | |
| Feb 2, 2026 | Valdes Berdichewsky | 1–0 | Rivadeneira Maturana | Ronda 5: Valdes Berdichewsky, Lucas Gaspar - Rivadeneira Maturana, Benjamin | Queen's Gambit Declined | |
| Feb 2, 2026 | Loyola Leon | 0–1 | Valdes Berdichewsky | Ronda 4: Loyola Leon, Mario - Valdes Berdichewsky, Lucas Gaspar | King's Indian Defense: Normal Variation, Rare Defenses | |
| Oct 5, 2025 | Valdes Berdichewsky | ½–½ | Caurapan Montero | 12º CHESS BOSS - CHESS TOUR GRUPO B | Queen's Indian Defense: Classical Variation | |
| Oct 5, 2025 | Miranda Camus | 1–0 | Valdes Berdichewsky | 12º CHESS BOSS - CHESS TOUR GRUPO B | King's Indian Defense: Semi-Averbakh System | |
| Oct 5, 2025 | Izquierdo Garces | 0–1 | Valdes Berdichewsky | 12º CHESS BOSS - CHESS TOUR GRUPO B | Sicilian Defense: Closed | |
| 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 | Valdes Berdichewsky | 1–0 | Chavez Dinamarca | 12º CHESS BOSS - CHESS TOUR GRUPO B | Queen's Gambit Declined: Three Knights Variation | |
| Oct 4, 2025 | Palma Araya | ½–½ | Valdes Berdichewsky | 12º CHESS BOSS - CHESS TOUR GRUPO B | King's Indian Defense: Orthodox Variation, Glek Defense | |
| Oct 3, 2025 | Lagos Inostroza | 0–1 | Valdes Berdichewsky | 12º CHESS BOSS - CHESS TOUR GRUPO B | Sicilian Defense: Najdorf Variation | |
| Aug 17, 2025 | Valdes Berdichewsky | ½–½ | Santos Gonzalez | 11 CHESS BOSS - CHESS TOUR GRUPO B | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Aug 17, 2025 | Marin Munoz | 0–1 | Valdes Berdichewsky | 11 CHESS BOSS - CHESS TOUR GRUPO B | King's Indian Defense: Orthodox Variation, Glek Defense | |
| Aug 17, 2025 | Palma Araya | ½–½ | Valdes Berdichewsky | 11 CHESS BOSS - CHESS TOUR GRUPO B | King's Indian Defense: Orthodox Variation, Glek Defense | |
| Aug 16, 2025 | Valdes Berdichewsky | 0–1 | Gonzalez Culi | 11 CHESS BOSS - CHESS TOUR GRUPO B | Queen's Gambit Declined | |
| Aug 16, 2025 | Valdes Berdichewsky | ½–½ | Donoso Aguirre | 11 CHESS BOSS - CHESS TOUR GRUPO B | Queen's Pawn Game: Symmetrical Variation | |
| Aug 16, 2025 | Sanchez Tobar | 0–1 | Valdes Berdichewsky | 11 CHESS BOSS - CHESS TOUR GRUPO B | Sicilian Defense: Moscow Variation, Sokolsky Variation | |
| Aug 15, 2025 | Diaz Dennett | 0–1 | Valdes Berdichewsky | 11 CHESS BOSS - CHESS TOUR GRUPO B | Sicilian Defense: Smith-Morra Gambit Accepted | |
| Jul 5, 2025 | Valdes Berdichewsky | * | Bastias Barreau | Sudamericano Escolar Categorias Impares | ? | |
| Jul 5, 2025 | Valdes Berdichewsky | ½–½ | Bastias Barreau | Sudamericano Escolar Categorias Impares | Semi-Slav Defense: Main Line | |
| Jul 4, 2025 | Candia Gomez | * | Valdes Berdichewsky | Sudamericano Escolar Categorias Impares | King's Indian Defense | |
| Jul 4, 2025 | Candia Gomez | 1–0 | Valdes Berdichewsky | Sudamericano Escolar Categorias Impares | King's Indian Defense: Makogonov Variation | |
| Jul 3, 2025 | Quintero Sanchez | 0–1 | Valdes Berdichewsky | Sudamericano Escolar Categorias Impares | King's Indian Defense: Averbakh Variation, Benoni Defense, Advance Variation | |
| Jul 2, 2025 | Valdes Berdichewsky | * | Alvarado Lillo | Sudamericano Escolar Categorias Impares | ? | |
| Jul 2, 2025 | Valdes Berdichewsky | 1–0 | Suana Ticona | Sudamericano Escolar Categorias Impares | Queen's Gambit Declined | |
| Jul 2, 2025 | Valdes Berdichewsky | 1–0 | Alvarado Lillo | Sudamericano Escolar Categorias Impares | Queen's Pawn Game: Krause Variation | |
| Jul 2, 2025 | Valdes Berdichewsky | 1–0 | Ricouz Vasquez | Sudamericano Escolar Categorias Impares | Benoni Defense: Czech Benoni Defense | |
| Jul 2, 2025 | Guerra Mansilla | ½–½ | Valdes Berdichewsky | Sudamericano Escolar Categorias Impares | English Opening: Great Snake Variation | |
| May 25, 2025 | Quintero Sanchez | 0–1 | Valdes Berdichewsky | Ronda 7: Quintero Sanchez, Santiago - Valdes Berdichewsky, Lucas Gaspar | King's Indian Defense: Averbakh Variation, Main Line | |
| May 24, 2025 | Valdes Berdichewsky | 0–1 | Palma Guitard | Ronda 4: Valdes Berdichewsky, Lucas Gaspar - Palma Guitard, Lautaro | King's Indian Defense: Orthodox Variation | |
| May 23, 2025 | Aguilera Alvarez | 0–1 | Valdes Berdichewsky | Ronda 1: Aguilera Alvarez, Lucas Ignacio - Valdes Berdichewsky, Lucas Gaspar | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| May 23, 2025 | Valdes Berdichewsky | 1–0 | Rodriguez Alarcon | Ronda 6: Valdes Berdichewsky, Lucas Gaspar - Rodriguez Alarcon, Vicente Benjamin | Tarrasch Defense: Symmetrical Variation | |
| May 23, 2025 | Penailillo Correa | 0–1 | Valdes Berdichewsky | Ronda 3: Penailillo Correa, Roberto Andres - Valdes Berdichewsky, Lucas Gaspar | Sicilian Defense: Smith-Morra Gambit Accepted | |
| May 23, 2025 | Valdes Berdichewsky | 1–0 | Binimelis Barahona | Ronda 2: Valdes Berdichewsky, Lucas Gaspar - Binimelis Barahona, Diego | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Feb 9, 2025 | Palma Araya | ½–½ | Valdes Berdichewsky | Ronda 9: Palma Araya, David - Valdes Berdichewsky, Lucas Gaspar | King's Indian Defense: Semi-Averbakh System | |
| Feb 7, 2025 | Valdes Berdichewsky | ½–½ | Vergara Barreda | Ronda 6: Valdes Berdichewsky, Lucas Gaspar - Vergara Barreda, Inaki Imanol | King's Indian Defense: Orthodox Variation | |
| Feb 5, 2025 | Marrujo Pardo | 1–0 | Valdes Berdichewsky | Ronda 4: Marrujo Pardo, Mauricio Emmanuel - Valdes Berdichewsky, Lucas Gaspar | Sicilian Defense: Prins Variation | |
| Jun 2, 2024 | Valdes Berdichewsky | 0–1 | Valdes Fuenzalida | Round 7: Valdes Berdichewsky, Lucas Gaspar - Valdes Fuenzalida, Matias Alejand | Queen's Pawn Game: London System | |
| Jun 2, 2024 | Chavez Dinamarca | 0–1 | Valdes Berdichewsky | Round 6: Chavez Dinamarca, Bastian - Valdes Berdichewsky, Lucas Gaspar | King's Indian Attack: Symmetrical Defense | |
| Jun 2, 2024 | Valdes Berdichewsky | 0–1 | Morales Flores | Round 5: Valdes Berdichewsky, Lucas Gaspar - Morales Flores, Monserrat | King's Indian Defense: Orthodox Variation | |
| Jun 1, 2024 | Von Dessauer Orellana | 0–1 | Valdes Berdichewsky | Round 4: Von Dessauer Orellana, Daniel - Valdes Berdichewsky, Lucas Gaspar | King's Indian Defense: Fianchetto Variation, Carlsbad Variation | |
| Jun 1, 2024 | Cuevas Araya | 1–0 | Valdes Berdichewsky | Round 3: Cuevas Araya, Walter - Valdes Berdichewsky, Lucas Gaspar | Philidor Defense: Lion Variation | |
| Jun 1, 2024 | Valdes Berdichewsky | 0–1 | Palma Araya | Round 2: Valdes Berdichewsky, Lucas Gaspar - Palma Araya, David | Queen's Pawn Game: London System | |
| May 30, 2024 | Marin Munoz | 1–0 | Valdes Berdichewsky | Round 1: Marin Munoz, Roque - Valdes Berdichewsky, Lucas Gaspar | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 18, 2024 | Obando Gonzalez | 1–0 | Valdes Berdichewsky | Round 2: Obando Gonzalez, Vicente - Valdes Berdichewsky, Lucas Gaspar | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| May 17, 2024 | Valdes Berdichewsky | 1–0 | Pedrero Trujillo | Round 1: Valdes Berdichewsky, Lucas Gaspar - Pedrero Trujillo, Leonardo Nicano | Indian Defense: Normal Variation | |