| Jun 28, 2026 | Guevara Ruiz | 1–0 | Perez | Round 8: Guevara Ruiz, Santiago Jose - Perez, Damaris Nicole | Sicilian Defense: Old Sicilian | |
| Jun 27, 2026 | Melendez Manuel A. | 1–0 | Guevara Ruiz | Round 7: Melendez Manuel A. - Guevara Ruiz, Santiago Jose | Semi-Slav Defense: Normal Variation | |
| Jun 22, 2026 | Guevara Ruiz | 0–1 | Giron | Round 6: Guevara Ruiz, Santiago Jose - Giron, Jorge Ernesto | Catalan Opening: Open Defense | |
| Jun 13, 2026 | Guevara Ruiz | 1–0 | Alvarenga | Round 2: Guevara Ruiz, Santiago Jose - Alvarenga, Juan | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jun 13, 2026 | Ayala | 0–1 | Guevara Ruiz | Round 3: Ayala, Rolando - Guevara Ruiz, Santiago Jose | Sicilian Defense: Smith-Morra Gambit Accepted, Paulsen Formation | |
| Jun 13, 2026 | Guevara Sanchez | ½–½ | Guevara Ruiz | Round 5: Guevara Sanchez, Erick Marvin - Guevara Ruiz, Santiago Jose | French Defense: Exchange Variation, Svenonius Variation | |
| Jun 13, 2026 | Guevara Ruiz | 1–0 | Medrano | Round 4: Guevara Ruiz, Santiago Jose - Medrano, Camilo | Queen's Pawn Game: Symmetrical Variation | |
| May 17, 2026 | Guevara Ruiz | ½–½ | Loayza Rivera | Round 9: Guevara Ruiz, Santiago Jose - Loayza Rivera, Bryan James | Sicilian Defense: Najdorf Variation | |
| May 16, 2026 | Guevara Ruiz | 1–0 | Alba Ruiz | Round 8: Guevara Ruiz, Santiago Jose - Alba Ruiz, Kenneth Damian | Scotch Game: Scotch Gambit, Advance Variation | |
| May 16, 2026 | Li | ½–½ | Guevara Ruiz | Round 7: Li, Aiden Linyuan - Guevara Ruiz, Santiago Jose | Caro-Kann Defense: Two Knights Attack | |
| May 15, 2026 | Suresh | ½–½ | Guevara Ruiz | Round 6: Suresh, Barath Subramanian - Guevara Ruiz, Santiago Jose | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| May 14, 2026 | Guevara Ruiz | 1–0 | Manchanda | Round 5: Guevara Ruiz, Santiago Jose - Manchanda, Advik | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 14, 2026 | Jani | 0–1 | Guevara Ruiz | Round 4: Jani, Aakash - Guevara Ruiz, Santiago Jose | Slav Defense | |
| May 13, 2026 | Guevara Ruiz | 1–0 | Remicio Gomez | Round 3: Guevara Ruiz, Santiago Jose - Remicio Gomez, Joshua Santiago | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Apr 22, 2026 | Guevara Ruiz | * | Duran Cardenas | Round 1: Guevara Ruiz, Santiago Jose - Duran Cardenas, Juan Diego | Tarrasch Defense: Prague Variation | |
| Apr 22, 2026 | Aguilar de Leon | 1–0 | Guevara Ruiz | Round 2: Aguilar de Leon, Iker Xavier - Guevara Ruiz, Santiago Jose | Sicilian Defense: French Variation | |
| Apr 2, 2026 | Guevara Ruiz | ½–½ | Mendez Machado | Campeonato Centroamericano y del Caribe SUB 20 2026 | Bogo-Indian Defense: Retreat Variation | |
| Apr 1, 2026 | Lezcano Martinez | 0–1 | Guevara Ruiz | Campeonato Centroamericano y del Caribe SUB 20 2026 | Nimzo-Larsen Attack: Classical Variation | |
| Apr 1, 2026 | Guevara Ruiz | 0–1 | Quesada Fallas | Campeonato Centroamericano y del Caribe SUB 20 2026 | Modern Defense: Standard Defense | |
| Mar 31, 2026 | Cardoza Diaz | 0–1 | Guevara Ruiz | Campeonato Centroamericano y del Caribe SUB 20 2026 | Queen's Pawn Game: Colle System, Traditional Colle | |
| Mar 30, 2026 | Barboza Viquez | 1–0 | Guevara Ruiz | Campeonato Centroamericano y del Caribe SUB 20 2026 | Caro-Kann Defense: Advance Variation | |
| Mar 30, 2026 | Guevara Ruiz | * | Monroy Lopez | Campeonato Centroamericano y del Caribe SUB 20 2026 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Mar 29, 2026 | Guevara Ruiz | ½–½ | Gonzalez Xique | Campeonato Centroamericano y del Caribe SUB 20 2026 | Caro-Kann Defense: Advance Variation | |
| Mar 28, 2026 | Ramos Rodriguez | 0–1 | Guevara Ruiz | Campeonato Centroamericano y del Caribe SUB 20 2026 | Caro-Kann Defense: Exchange Variation | |
| Mar 28, 2026 | Guevara Ruiz | 1–0 | Rojas Vindas | Campeonato Centroamericano y del Caribe SUB 20 2026 | Sicilian Defense: Classical Variation | |
| Feb 14, 2026 | Coto Anaya | 0–1 | Guevara Ruiz | Round 5: Coto Anaya, Walter Alexander - Guevara Ruiz, Santiago Jose | Caro-Kann Defense: Exchange Variation | |
| Feb 8, 2026 | Guevara Ruiz | 1–0 | Pacheco | Round 4: Guevara Ruiz, Santiago Jose - Pacheco, Julio | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Feb 7, 2026 | Guevara Ruiz | 0–1 | Fernandez Denis | Round 2: Guevara Ruiz, Santiago Jose - Fernandez Denis | Bishop's Opening: Berlin Defense | |
| Feb 7, 2026 | Vasquez Vasquez | 0–1 | Guevara Ruiz | Round 3: Vasquez Vasquez, Marielos - Guevara Ruiz, Santiago Jose | Queen's Gambit Accepted: Central Variation, McDonnell Defense | |
| Jan 31, 2026 | Guevara Ruiz | ½–½ | Arias | Round 9: Guevara Ruiz, Santiago Jose - Arias, Daniel | Sicilian Defense: O'Kelly Variation, Venice System, Barcza Line | |
| Jan 31, 2026 | Ibarra Carlos Roberto | ½–½ | Guevara Ruiz | Round 8: Ibarra Carlos Roberto - Guevara Ruiz, Santiago Jose | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Jan 31, 2026 | Guevara Sanchez | 0–1 | Guevara Ruiz | Round 7: Guevara Sanchez, Erick Marvin - Guevara Ruiz, Santiago Jose | English Opening: King's English Variation, Two Knights Variation | |
| Jan 31, 2026 | Guevara Ruiz | 1–0 | Melendez Manuel A. | Round 6: Guevara Ruiz, Santiago Jose - Melendez Manuel A. | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jan 11, 2026 | Guzman | 0–1 | Guevara Ruiz | Tercer Torneo Internacional Club Caissa Guatemala | Sicilian Defense: Taimanov Variation | |
| Jan 10, 2026 | Guevara Ruiz | ½–½ | Garcia Y. | Tercer Torneo Internacional Club Caissa Guatemala | Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order Accepted | |
| Jan 10, 2026 | Tari | 1–0 | Guevara Ruiz | Tercer Torneo Internacional Club Caissa Guatemala | Caro-Kann Defense: Advance Variation | |
| Jan 9, 2026 | Guevara Ruiz | 1–0 | Mintz | Tercer Torneo Internacional Club Caissa Guatemala | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jan 9, 2026 | Voisard | 0–1 | Guevara Ruiz | Tercer Torneo Internacional Club Caissa Guatemala | Caro-Kann Defense: Panov Attack, Fianchetto Defense | |
| Jan 8, 2026 | Mirzoev | 1–0 | Guevara Ruiz | Tercer Torneo Internacional Club Caissa Guatemala | Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | |
| Jan 7, 2026 | Guevara Ruiz | 1–0 | Romero | Tercer Torneo Internacional Club Caissa Guatemala | French Defense: Paulsen Variation | |
| Jan 7, 2026 | Lopez Escobar | ½–½ | Guevara Ruiz | Tercer Torneo Internacional Club Caissa Guatemala | English Opening: Agincourt Defense | |
| Dec 20, 2025 | Guevara Ruiz | 0–1 | Castillo Beitia | Round 9: Guevara Ruiz, Santiago Jose - Castillo Beitia, Ashley Alexandra | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld Gambit | |
| Dec 19, 2025 | Shaw | 0–1 | Guevara Ruiz | Round 8: Shaw, Jaden - Guevara Ruiz, Santiago Jose | Caro-Kann Defense: Accelerated Panov Attack, Modern Variation | |
| Dec 19, 2025 | Guevara Ruiz | ½–½ | Ordonez Bonilla | Round 7: Guevara Ruiz, Santiago Jose - Ordonez Bonilla, Ricardo Andres | Réti Opening: Advance Variation | |
| Dec 17, 2025 | Guevara Ruiz | 1–0 | Medina | Round 5: Guevara Ruiz, Santiago Jose - Medina, Joshua | English Opening: Neo-Catalan | |
| Dec 16, 2025 | James | 0–1 | Guevara Ruiz | Round 4: James, Justin - Guevara Ruiz, Santiago Jose | Sicilian Defense: French Variation | |
| Dec 16, 2025 | Guevara Ruiz | 1–0 | WILSON | Round 3: Guevara Ruiz, Santiago Jose - WILSON, ALEJANDRO | Réti Opening: Anglo-Slav Variation, Gurevich System | |
| Dec 15, 2025 | Couchman | 1–0 | Guevara Ruiz | Round 2: Couchman, Kyle - Guevara Ruiz, Santiago Jose | Sicilian Defense: Taimanov Variation | |
| Dec 9, 2025 | Linares Orellana | 0–1 | Guevara Ruiz | Round 6: Linares Orellana, Hector Jose - Guevara Ruiz, Santiago Jose | Caro-Kann Defense: Exchange Variation | |
| Dec 9, 2025 | Guevara Ruiz | ½–½ | Done Sanchez | Round 1: Guevara Ruiz, Santiago Jose - Done Sanchez, Andrews J. | Pirc Defense | |
| Nov 6, 2025 | Guevara Ruiz | ½–½ | de Roo | Round 6: Guevara Ruiz, Santiago Jose - de Roo, Patrick J. | Pirc Defense | |
| Nov 5, 2025 | Toro Ramirez | 0–1 | Guevara Ruiz | Round 5: Toro Ramirez, Samuel - Guevara Ruiz, Santiago Jose | Sicilian Defense: Lasker-Dunne Attack | |
| Nov 5, 2025 | Cortes Franco | 0–1 | Guevara Ruiz | Round 4: Cortes Franco, Adrian Ignacio - Guevara Ruiz, Santiago Jose | Caro-Kann Defense: Advance Variation | |
| Nov 5, 2025 | Lopez Murillo | 0–1 | Guevara Ruiz | Round 3: Lopez Murillo, Eliseo Josue - Guevara Ruiz, Santiago Jose | French Defense: Exchange Variation | |
| Nov 5, 2025 | Colmenarez Rivero | 1–0 | Guevara Ruiz | Round 2: Colmenarez Rivero, Jheremias David - Guevara Ruiz, Santiago Jose | Indian Defense | |
| Nov 5, 2025 | Guevara Ruiz | 1–0 | Juarez Meza | Round 1: Guevara Ruiz, Santiago Jose - Juarez Meza, Brayan | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Nov 5, 2025 | Guevara Ruiz | 0–1 | Franco Jimenez | Round 6: Guevara Ruiz, Santiago Jose - Franco Jimenez, Jesus Adrian | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Nov 5, 2025 | Arauz Espinoza | 0–1 | Guevara Ruiz | Round 4: Arauz Espinoza, Douglas Ariel - Guevara Ruiz, Santiago Jose | Sicilian Defense: French Variation | |
| Nov 5, 2025 | Orocio Mendoza | 0–1 | Guevara Ruiz | Round 2: Orocio Mendoza, Egbert David - Guevara Ruiz, Santiago Jose | Sicilian Defense: Smith-Morra Gambit | |
| Nov 5, 2025 | Guevara Ruiz | 0–1 | Figueroa Rincon | Round 1: Guevara Ruiz, Santiago Jose - Figueroa Rincon, Cesar Fabian | Pirc Defense | |
| Nov 4, 2025 | Guevara Ruiz | 1–0 | Lopez Murillo | Round 5: Guevara Ruiz, Santiago Jose - Lopez Murillo, Eliseo Josue | French Defense: Rubinstein Variation, Blackburne Defense | |
| Nov 3, 2025 | Casares Ugueto | 0–1 | Guevara Ruiz | Round 4: Casares Ugueto, Santiago de Jesus - Guevara Ruiz, Santiago Jose | Sicilian Defense: Taimanov Variation | |
| Nov 3, 2025 | Guevara Ruiz | 1–0 | Linares Orellana | Round 3: Guevara Ruiz, Santiago Jose - Linares Orellana, Hector Jose | Catalan Opening: Open Defense, Classical Line | |
| Nov 2, 2025 | Guevara Ruiz | 1–0 | Briceno Campos | Round 1: Guevara Ruiz, Santiago Jose - Briceno Campos, Angel Gabriel | Italian Game: Scotch Gambit, Janowski Defense | |
| Nov 2, 2025 | Sharma | 0–1 | Guevara Ruiz | Round 2: Sharma, Mohit - Guevara Ruiz, Santiago Jose | Sicilian Defense: Four Knights Variation | |
| Oct 30, 2025 | Guevara Ruiz | 1–0 | Cardenas Carbajal | XII Juegos Centroamericanos, Guatemala 2025 Masculino Blitz | French Defense: Winawer Variation, Advance Variation | |
| Oct 30, 2025 | Guevara Ruiz | * | Linares Orellana | XII Juegos Centroamericanos, Guatemala 2025 Masculino Blitz | Italian Game: Deutz Gambit | |
| Oct 30, 2025 | Tapia Ostolaza | 1–0 | Guevara Ruiz | XII Juegos Centroamericanos, Guatemala 2025 Masculino Blitz | Zukertort Opening | |
| Oct 30, 2025 | Guevara Ruiz | 1–0 | Lizano Quiros | XII Juegos Centroamericanos, Guatemala 2025 Masculino Blitz | Sicilian Defense: Alapin Variation, Barmen Defense, Endgame Variation | |
| Oct 30, 2025 | Guevara Ruiz | 1–0 | Lacayo | XII Juegos Centroamericanos, Guatemala 2025 Masculino Blitz | Philidor Defense: Lion Variation | |
| Oct 28, 2025 | Guevara Ruiz | 1–0 | Martinez | XII Juegos Centroamericanos, Guatemala 2025 MASCULINO | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Oct 27, 2025 | Guevara Ruiz | 1–0 | Tapia Ostolaza | XII Juegos Centroamericanos, Guatemala 2025 MASCULINO | Sicilian Defense: Kan Variation, Modern Variation | |
| Oct 26, 2025 | Valdes Romero | ½–½ | Guevara Ruiz | XII Juegos Centroamericanos, Guatemala 2025 MASCULINO | King's Indian Attack: Sicilian Variation | |
| Oct 25, 2025 | Guevara Ruiz | 0–1 | Sanchez | XII Juegos Centroamericanos, Guatemala 2025 MASCULINO | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jul 26, 2025 | Guevara Ruiz | ½–½ | Loayza Rivera | Round 3: Guevara Ruiz, Santiago Jose - Loayza Rivera, Bryan James | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Jul 26, 2025 | Valdez Quihue | 0–1 | Guevara Ruiz | Round 2: Valdez Quihue, Benjamin Gerardo - Guevara Ruiz, Santiago Jose | Sicilian Defense: Kramnik Variation | |
| Jul 26, 2025 | Guevara Ruiz | * | Fernandez Romero | Round 1: Guevara Ruiz, Santiago Jose - Fernandez Romero, Jacobo Leonel | King's Pawn Game | |
| Apr 16, 2025 | Ortiz | 1–0 | Guevara Ruiz | Round 5: Ortiz, Marcos - Guevara Ruiz, Santiago Jose | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Apr 15, 2025 | Galaviz Medina | 1–0 | Guevara Ruiz | Round 3: Galaviz Medina, Sion Radamantys - Guevara Ruiz, Santiago Jose | Benoni Defense: Modern Variation | |
| Jun 2, 2024 | Guevara Ruiz | 1–0 | Hernandez Guarin | Round 11: Guevara Ruiz, Santiago Jose - Hernandez Guarin, Samuel Andres | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 2, 2024 | Guevara Ruiz | 1–0 | Herrera Jimenez | Round 9: Guevara Ruiz, Santiago Jose - Herrera Jimenez, Mateo | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jun 2, 2024 | Guevara Ruiz | 0–1 | Jimenez Jimenez | Round 7: Guevara Ruiz, Santiago Jose - Jimenez Jimenez, Leandro | Petrov's Defense: Damiano Variation, Kholmov Gambit | |
| Jun 2, 2024 | Ardila | 1–0 | Guevara Ruiz | Round 8: Ardila, Oscar Humberto - Guevara Ruiz, Santiago Jose | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| Jun 2, 2024 | Londono Lopez | 0–1 | Guevara Ruiz | Round 6: Londono Lopez, Donaldo - Guevara Ruiz, Santiago Jose | Sicilian Defense: Najdorf Variation | |
| Jun 1, 2024 | Guevara Ruiz | 1–0 | Fernandez | Round 5: Guevara Ruiz, Santiago Jose - Fernandez, Andres | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jun 1, 2024 | Cadena M | 1–0 | Guevara Ruiz | Round 4: Cadena M, Gustavo Adolfo - Guevara Ruiz, Santiago Jose | Old Indian Defense: Two Knights Variation | |
| Jun 1, 2024 | Guevara Ruiz | ½–½ | Rivera | Round 3: Guevara Ruiz, Santiago Jose - Rivera, Ingris | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jun 1, 2024 | Juarez Flores | 0–1 | Guevara Ruiz | Round 2: Juarez Flores, Carlos A. - Guevara Ruiz, Santiago Jose | Sicilian Defense: Prins Variation | |
| Jun 1, 2024 | Guevara Ruiz | 1–0 | Aristizabal Melguiso | Round 1: Guevara Ruiz, Santiago Jose - Aristizabal Melguiso, Martin | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| May 31, 2024 | Londono Lopez | 1–0 | Guevara Ruiz | Round 10: Londono Lopez, Donaldo - Guevara Ruiz, Santiago Jose | Sicilian Defense: Najdorf Variation, Adams Attack | |
| May 30, 2024 | Guevara Ruiz | ½–½ | Bolivar Losada | Round 9: Guevara Ruiz, Santiago Jose - Bolivar Losada, Jeison | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| May 30, 2024 | Cesar Acosta | 0–1 | Guevara Ruiz | Round 9: Cesar Acosta, Christian Alejandro - Guevara Ruiz, Santiago Jose | Queen's Gambit Declined: Exchange Variation | |
| May 30, 2024 | Guevara Ruiz | 1–0 | Hoyos Cartagena | Round 8: Guevara Ruiz, Santiago Jose - Hoyos Cartagena, Jose Alfredo | Indian Defense | |
| May 30, 2024 | Gomez Velasquez | 1–0 | Guevara Ruiz | Round 7: Gomez Velasquez, Jorge - Guevara Ruiz, Santiago Jose | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| May 30, 2024 | Guevara Ruiz | 1–0 | Silva Alvarez | Round 6: Guevara Ruiz, Santiago Jose - Silva Alvarez, Matias | Indian Defense | |
| May 30, 2024 | Ospina | 1–0 | Guevara Ruiz | Round 5: Ospina, Weimar Andres - Guevara Ruiz, Santiago Jose | English Opening: King's English Variation, Two Knights Variation, Keres Variation | |
| May 30, 2024 | Guevara Ruiz | 0–1 | Holliman | Round 4: Guevara Ruiz, Santiago Jose - Holliman, Bob | French Defense: Winawer Variation, Portisch-Hook Variation | |
| May 30, 2024 | Rosero | 0–1 | Guevara Ruiz | Round 3: Rosero, Jefferson - Guevara Ruiz, Santiago Jose | English Opening: King's English Variation, Two Knights Variation | |
| May 29, 2024 | Blandon | 1–0 | Guevara Ruiz | Round 1: Blandon, Luis Guillermo - Guevara Ruiz, Santiago Jose | Zukertort Opening | |
| May 29, 2024 | Rivera | 1–0 | Guevara Ruiz | Round 8: Rivera, Ingris - Guevara Ruiz, Santiago Jose | Queen's Gambit Declined: Semi-Tarrasch Defense | |