| 1 ago 2026 | Valdes Berdichewsky, Lucas Gaspar 2205 | Paladines Pinzon, Samuel 2026 | ½-½ | E14 Queen's Indian Defense, with e3 | XXXVI Pan-American Youth Chess Festival | O18 | 32 | Ver |
| 5 jul 2026 | Hernandez Riera, Jose 2163 | Valdes Berdichewsky, Lucas Gaspar 2205 | 1-0 | E76 Defensa India de Rey: Four Pawns Attack, Dynamic Attack | 15 CHESS BOSS - CHESS TOUR MAGISTRAL A | 31 | Ver |
| 5 jul 2026 | Valdes Berdichewsky, Lucas Gaspar 2205 | Chacon Salinas, Cesar 2187 | 0-1 | D11 Defensa Eslava: Quiet Variation | 15 CHESS BOSS - CHESS TOUR MAGISTRAL A | 69 | Ver |
| 5 jul 2026 | Valdes Berdichewsky, Lucas Gaspar 2205 | Caceres Leal, Jaime 2226 | 0-1 | D20 Gambito de Dama aceptado | 15 CHESS BOSS - CHESS TOUR MAGISTRAL A | 44 | Ver |
| 4 jul 2026 | Jaque Gutierrez, Matias 2223 | Valdes Berdichewsky, Lucas Gaspar 2205 | 1-0 | E65 Defensa India de Rey: Fianchetto Variation, Yugoslav Variation, Exchange Line | 15 CHESS BOSS - CHESS TOUR MAGISTRAL A | 35 | Ver |
| 4 jul 2026 | Valdes Berdichewsky, Lucas Gaspar 2205 | Navarro Guerrero, Simon 2093 | ½-½ | A55 Defensa India Antigua: Normal Variation | 15 CHESS BOSS - CHESS TOUR MAGISTRAL A | 35 | Ver |
| 4 jul 2026 | Vasquez Toledo, Cristian 2271 | Valdes Berdichewsky, Lucas Gaspar 2205 | 1-0 | B92 Defensa Siciliana: Najdorf Variation, Opocensky Variation | 15 CHESS BOSS - CHESS TOUR MAGISTRAL A | 34 | Ver |
| 3 jul 2026 | Valdes Berdichewsky, Lucas Gaspar 2205 | Aravena Navarro, Alexis Andres 2162 | 0-1 | A58 Gambito Benko aceptado: Fully Accepted Variation | 15 CHESS BOSS - CHESS TOUR MAGISTRAL A | 56 | Ver |
| 15 may 2026 | Diaz Contreras, Pedro 2191 | Valdes Berdichewsky, Lucas Gaspar 2219 | ½-½ | B52 Defensa Siciliana: Moscow Variation, Main Line | 14° CHESS BOSS - CHESS TOUR A | 42 | Ver |
| 15 may 2026 | Valdes Berdichewsky, Lucas Gaspar 2219 | Garmendia Vega, Gabriel 2113 | ½-½ | A61 Defensa Benoni: Knight's Tour Variation | 14° CHESS BOSS - CHESS TOUR A | 28 | Ver |
| 15 may 2026 | Miranda Camus, Joaquin Ignacio 2239 | Valdes Berdichewsky, Lucas Gaspar 2219 | 1-0 | A48 Apertura de Peón de Dama: Barry Attack | 14° CHESS BOSS - CHESS TOUR A | 69 | Ver |
| 15 may 2026 | Valdes Berdichewsky, Lucas Gaspar 2219 | Donoso Aguirre, Maximiliano 2082 | ½-½ | D05 Apertura de Peón de Dama: Colle System | 14° CHESS BOSS - CHESS TOUR A | 55 | Ver |
| 15 may 2026 | Bahamondes Ortiz, Benjamin 2226 | Valdes Berdichewsky, Lucas Gaspar 2219 | 1-0 | E90 Defensa India de Rey: Normal Variation, Rare Defenses | 14° CHESS BOSS - CHESS TOUR A | 62 | Ver |
| 15 may 2026 | Valdes Berdichewsky, Lucas Gaspar 2219 | Tapia Fuentes, Jaime 2131 | 1-0 | A61 Defensa Benoni: Knight's Tour Variation | 14° CHESS BOSS - CHESS TOUR A | 59 | Ver |
| 15 may 2026 | Barriga Silva, Felipe 2277 | Valdes Berdichewsky, Lucas Gaspar 2219 | 0-1 | B23 Defensa Siciliana: Closed | 14° CHESS BOSS - CHESS TOUR A | 39 | Ver |
| 15 mar 2026 | Chacon Salinas, Cesar 2151 | Valdes Berdichewsky, Lucas Gaspar 2115 | 0-1 | E64 Defensa India de Rey: Fianchetto Variation, Yugoslav Variation, Rare Line | 13° CHESS BOSS - CHESS TOUR A | 59 | Ver |
| 15 mar 2026 | Valdes Berdichewsky, Lucas Gaspar 2115 | Aravena Navarro, Alexis Andres 2126 | 1-0 | A58 Gambito Benko aceptado: Fully Accepted Variation | 13° CHESS BOSS - CHESS TOUR A | 49 | Ver |
| 15 mar 2026 | Donoso Aguirre, Maximiliano 2100 | Valdes Berdichewsky, Lucas Gaspar 2115 | 1-0 | B90 Defensa Siciliana: Najdorf Variation, English Attack | 13° CHESS BOSS - CHESS TOUR A | 41 | Ver |
| 14 mar 2026 | Guerrero Cataldo, Juan Andres 2120 | Valdes Berdichewsky, Lucas Gaspar 2115 | 1-0 | A45 Ataque Trompowsky | 13° CHESS BOSS - CHESS TOUR A | 49 | Ver |
| 14 mar 2026 | Valdes Berdichewsky, Lucas Gaspar 2115 | Bahamondes Ortiz, Benjamin 2243 | ½-½ | D59 Gambito de Dama rehusado: Tartakower Defense | 13° CHESS BOSS - CHESS TOUR A | 49 | Ver |