| Jun 10, 2026 | Leon Infante | 0–1 | Pacheco Sierra | Round 11: Leon Infante, Bryan - Pacheco Sierra, Diego Sebastian | Queen's Pawn Game: Symmetrical Variation | |
| Jun 9, 2026 | Pacheco Sierra | 1–0 | Gonzalez Zharikov | Round 10: Pacheco Sierra, Diego Sebastian - Gonzalez Zharikov, Andrey | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jun 8, 2026 | Pacheco Sierra | 1–0 | Valadez Sepulveda | Round 9: Pacheco Sierra, Diego Sebastian - Valadez Sepulveda, Joel Isaac | Nimzo-Indian Defense: Normal Variation, Ragozin Variation | |
| Jun 8, 2026 | Vazquez Pineda | ½–½ | Pacheco Sierra | Round 8: Vazquez Pineda, Jorge Hector - Pacheco Sierra, Diego Sebastian | Ruy Lopez: Berlin Defense | |
| Jun 8, 2026 | Argote Heredia | 1–0 | Pacheco Sierra | Round 9: Argote Heredia, Valentina - Pacheco Sierra, Diego Sebastian | Pirc Defense | |
| Jun 8, 2026 | Pacheco Sierra | 0–1 | Ordonez Gonzalez | Round 7: Pacheco Sierra, Diego Sebastian - Ordonez Gonzalez, Gabriel | English Opening: Symmetrical Variation | |
| Jun 8, 2026 | Martinez Nestor | 0–1 | Pacheco Sierra | Round 6: Martinez Nestor, Ian Marco - Pacheco Sierra, Diego Sebastian | Queen's Pawn Game: London System | |
| Jun 8, 2026 | Pacheco Sierra | 0–1 | Fogo Esquivel | Round 5: Pacheco Sierra, Diego Sebastian - Fogo Esquivel, Levi Kalani Alexander | Indian Defense: Budapest Defense, Adler Variation | |
| Jun 8, 2026 | Sosa Guzman | 0–1 | Pacheco Sierra | Round 4: Sosa Guzman, Daniel - Pacheco Sierra, Diego Sebastian | Queen's Pawn Game: Colle System, Grünfeld Formation | |
| Jun 8, 2026 | Pacheco Sierra | 1–0 | Mendoza Osorio | Round 3: Pacheco Sierra, Diego Sebastian - Mendoza Osorio, Ernesto | Sicilian Defense: Alapin Variation | |
| Jun 8, 2026 | Shaffer | 1–0 | Pacheco Sierra | Round 2: Shaffer, Alexander - Pacheco Sierra, Diego Sebastian | Ruy Lopez: Berlin Defense, Anti-Berlin Variation | |
| Jun 8, 2026 | Pacheco Sierra | 0–1 | Delgado Romero | Round 1: Pacheco Sierra, Diego Sebastian - Delgado Romero, Marco | Grünfeld Defense: Three Knights Variation, Burille Variation, Reversed Tarrasch | |
| Jun 7, 2026 | Pacheco Sierra | ½–½ | Mogollon Tobar | Round 8: Pacheco Sierra, Diego Sebastian - Mogollon Tobar, Nicolle Julieth | Sicilian Defense: Löwenthal Variation | |
| Jun 7, 2026 | Shaffer | 0–1 | Pacheco Sierra | Round 5: Shaffer, Alexander - Pacheco Sierra, Diego Sebastian | Ruy Lopez: Berlin Defense, Anti-Berlin Variation | |
| Jun 7, 2026 | Caicedo Rios | 0–1 | Pacheco Sierra | Round 4: Caicedo Rios, Layla Yasmira - Pacheco Sierra, Diego Sebastian | Ruy Lopez: Berlin Defense, Anti-Berlin Variation | |
| Jun 6, 2026 | Diaz Gonzalez | 0–1 | Pacheco Sierra | Round 7: Diaz Gonzalez, Ana Sofia - Pacheco Sierra, Diego Sebastian | Italian Game: Classical Variation, Giuoco Pianissimo, Albin Variation | |
| Jun 6, 2026 | Reyes Zavaleta | 1–0 | Pacheco Sierra | Round 4: Reyes Zavaleta, Fabian Ricardo - Pacheco Sierra, Diego Sebastian | Slav Defense: Quiet Variation | |
| Jun 6, 2026 | Pacheco Sierra | 1–0 | Luna Rodriguez | Round 3: Pacheco Sierra, Diego Sebastian - Luna Rodriguez, Sebastian | Caro-Kann Defense: Accelerated Panov Attack, Modern Variation | |
| Jun 6, 2026 | Luna Monsalve | ½–½ | Pacheco Sierra | Round 2: Luna Monsalve, Sofia - Pacheco Sierra, Diego Sebastian | Queen's Gambit Declined: Exchange Variation, Reshevsky Variation | |
| Jun 6, 2026 | Pacheco Sierra | 0–1 | Diaz Perez | Round 1: Pacheco Sierra, Diego Sebastian - Diaz Perez, Michel Alejandro | Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch | |
| Jun 6, 2026 | Pacheco Sierra | 0–1 | Noboa Silva | Round 9: Pacheco Sierra, Diego Sebastian - Noboa Silva, Kevin | Queen's Pawn Game: London System | |
| Jun 6, 2026 | Diaz Rosas | 1–0 | Pacheco Sierra | Round 8: Diaz Rosas, Julio Cesar - Pacheco Sierra, Diego Sebastian | Queen's Gambit Declined: Orthodox Defense, Rauzer Variation | |
| Jun 6, 2026 | Pacheco Sierra | 1–0 | Toro Castaneda | Round 7: Pacheco Sierra, Diego Sebastian - Toro Castaneda, Elizabeth | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Jun 6, 2026 | Ordonez Gonzalez | 0–1 | Pacheco Sierra | Round 6: Ordonez Gonzalez, Gabriel - Pacheco Sierra, Diego Sebastian | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Jun 5, 2026 | Pacheco Sierra | 0–1 | Varela Velazquez | Round 6: Pacheco Sierra, Diego Sebastian - Varela Velazquez, Carlos Francisco | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jun 5, 2026 | Pacheco Sierra | 1–0 | Garcia Espinoza | Round 5: Pacheco Sierra, Diego Sebastian - Garcia Espinoza, Yosed Emanuel | English Opening: Agincourt Defense | |
| Jun 4, 2026 | Galvan Rodriguez | ½–½ | Pacheco Sierra | Round 2: Galvan Rodriguez, Irving Gamaliel - Pacheco Sierra, Diego Sebastian | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jun 4, 2026 | Pacheco Sierra | 0–1 | Carvalho | Round 3: Pacheco Sierra, Diego Sebastian - Carvalho, Guillermo | Queen's Pawn Game: London System | |
| Jun 4, 2026 | Pacheco Sierra | 0–1 | Lopez Rayo | Round 1: Pacheco Sierra, Diego Sebastian - Lopez Rayo, Santiago | Sicilian Defense: Modern Variations | |
| Dec 20, 2025 | Wuaustorf Montalvo | 0–1 | Pacheco Sierra | Round 9: Wuaustorf Montalvo, Juan Carlos - Pacheco Sierra, Diego Sebastian | Catalan Opening: Closed, Main Line | |
| Dec 20, 2025 | Luna Javier | 1–0 | Pacheco Sierra | Round 7: Luna Javier, Edgar Froylan - Pacheco Sierra, Diego Sebastian | Zukertort Opening: Reversed Grünfeld | |
| Dec 20, 2025 | Pacheco Sierra | 0–1 | Alfaro | Round 5: Pacheco Sierra, Diego Sebastian - Alfaro, William | Indian Defense: Przepiorka Variation | |
| Dec 20, 2025 | Diaz Rosas | 1–0 | Pacheco Sierra | Round 4: Diaz Rosas, Julio Cesar - Pacheco Sierra, Diego Sebastian | Petrov's Defense: Millennium Attack | |
| Dec 19, 2025 | Palma Villanueva | 0–1 | Pacheco Sierra | Round 3: Palma Villanueva, Miguel Tadeo - Pacheco Sierra, Diego Sebastian | Ruy Lopez: Berlin Defense, Duras Variation | |
| Dec 19, 2025 | Pacheco Sierra | 1–0 | Zacarias Rodriguez | Round 2: Pacheco Sierra, Diego Sebastian - Zacarias Rodriguez, Santiago | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Dec 19, 2025 | Pacheco Sierra | 0–1 | Gamboa Alvarado | Round 9: Pacheco Sierra, Diego Sebastian - Gamboa Alvarado, Olga Leticia | Grünfeld Defense: Three Knights Variation, Hungarian Variation | |
| Dec 18, 2025 | Gutierrez Espinosa | 1–0 | Pacheco Sierra | Round 8: Gutierrez Espinosa, Karen - Pacheco Sierra, Diego Sebastian | Ruy Lopez: Berlin Defense | |
| Dec 18, 2025 | Obregon Garcia | ½–½ | Pacheco Sierra | Round 7: Obregon Garcia, Roxangel - Pacheco Sierra, Diego Sebastian | Ruy Lopez: Morphy Defense | |
| Dec 17, 2025 | Pacheco Sierra | ½–½ | Luna Javier | Round 6: Pacheco Sierra, Diego Sebastian - Luna Javier, Edgar Froylan | Grünfeld Defense: Three Knights Variation, Burille Variation | |
| Dec 17, 2025 | Morales Viscaya | 0–1 | Pacheco Sierra | Round 5: Morales Viscaya, Joel Artemio - Pacheco Sierra, Diego Sebastian | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6, Be7 | |
| Dec 15, 2025 | Hidalgo Diaz | 1–0 | Pacheco Sierra | Round 1: Hidalgo Diaz, Daniel - Pacheco Sierra, Diego Sebastian | Queen's Pawn Game: Colle System, Anti-Colle | |
| Nov 16, 2025 | Pacheco Sierra | 0–1 | Abreu Gongora | Round 5: Pacheco Sierra, Diego Sebastian - Abreu Gongora, Miguel Angel | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Nov 16, 2025 | Abreu Mateo | ½–½ | Pacheco Sierra | Round 4: Abreu Mateo, Miguel Angel - Pacheco Sierra, Diego Sebastian | Zukertort Opening: Reversed Grünfeld | |
| Nov 16, 2025 | Pacheco Sierra | 0–1 | Cejas Martinez | Round 3: Pacheco Sierra, Diego Sebastian - Cejas Martinez, Ivan Jesus | French Defense: Advance Variation | |
| Nov 16, 2025 | Verazaluce Quiroz | 0–1 | Pacheco Sierra | Round 2: Verazaluce Quiroz, Francis - Pacheco Sierra, Diego Sebastian | Slav Defense: Quiet Variation, Schallopp Defense | |
| Nov 16, 2025 | Pacheco Sierra | 1–0 | Herrera Navedo | Round 1: Pacheco Sierra, Diego Sebastian - Herrera Navedo, Rafael Alonso | Queen's Pawn Game: London System | |
| Sep 27, 2025 | Pacheco Sierra | 1–0 | Cardos Castillo | Ronda 5: Pacheco Sierra, Diego Sebastian - Cardos Castillo, Carlos A | Sicilian Defense: Hyperaccelerated Dragon | |
| Sep 27, 2025 | Arcila Villanueva | 1–0 | Pacheco Sierra | Ronda 1: Arcila Villanueva, Carlos - Pacheco Sierra, Diego Sebastian | Scotch Game: Scotch Gambit, Advance Variation | |