| Jun 28, 2026 | Levin | 1–0 | Mendez Machado | Round 5: Levin, Guy - Mendez Machado, Andre | Queen's Gambit Declined: Ragozin Defense | |
| Jun 27, 2026 | Mendez Machado | 0–1 | Kanyamarala | Round 2: Mendez Machado, Andre - Kanyamarala, Tarun | French Defense: Advance Variation, Paulsen Attack | |
| Apr 25, 2026 | Bedi | 0–1 | Mendez Machado | JSJ MASCULINO BLITZ | Italian Game: Classical Variation, Greco Gambit, Moeller-Therkatz Attack | |
| Apr 25, 2026 | Pitamber | 0–1 | Mendez Machado | JSJ MASCULINO BLITZ | Blackmar-Diemer Gambit Accepted: Euwe Defense | |
| Apr 25, 2026 | Mendez Machado | 1–0 | Sharma | JSJ MASCULINO BLITZ | Italian Game: Hungarian Defense | |
| Apr 25, 2026 | Cano Alcaraz | 0–1 | Mendez Machado | JSJ MASCULINO BLITZ | Catalan Opening: Open Defense, Classical Line | |
| Apr 25, 2026 | Mendez Machado | 0–1 | Garzon Zapatanga | JSJ MASCULINO BLITZ | Caro-Kann Defense: Maróczy Variation | |
| Apr 25, 2026 | Mendez Machado | 0–1 | Caceres Benitez | JSJ MASCULINO BLITZ | Sicilian Defense: Chekhover Variation | |
| Apr 24, 2026 | Sharma | 0–1 | Mendez Machado | JSJ Masculino Rapid | Ruy Lopez: Morphy Defense, Classical Defense Deferred | |
| Apr 24, 2026 | Mendez Machado | ½–½ | Schnaider | JSJ Masculino Rapid | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Apr 24, 2026 | Pitamber | 0–1 | Mendez Machado | JSJ Masculino Rapid | Trompowsky Attack | |
| Apr 23, 2026 | Mendez Machado | 0–1 | Allen Leydenz | JSJ Masculino Rapid | Italian Game: Giuoco Pianissimo, Normal | |
| Apr 23, 2026 | Caceres Benitez | 0–1 | Mendez Machado | JSJ Masculino Rapid | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Apr 23, 2026 | Mendez Machado | ½–½ | Cano Alcaraz | JSJ Masculino Rapid | Caro-Kann Defense: Maróczy Variation | |
| Apr 14, 2026 | Mendez Machado | 1–0 | Allen Leydenz | JSJ MASCULINO BLITZ | Italian Game: Classical Variation, Greco Gambit, Dubov Italian | |
| Apr 14, 2026 | Schnaider | 0–1 | Mendez Machado | JSJ MASCULINO BLITZ | Four Knights Game | |
| Apr 14, 2026 | Bedi | 0–1 | Mendez Machado | JSJ Masculino Rapid | Bishop's Opening: Vienna Hybrid | |
| Apr 7, 2026 | Mendez Machado | ½–½ | Garzon Zapatanga | JSJ Masculino Rapid | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto 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 | Mendez Machado | 1–0 | Herrera Benitez | Campeonato Centroamericano y del Caribe SUB 20 2026 | Italian Game: Giuoco Pianissimo, Normal | |
| Apr 1, 2026 | Ramirez Aguilar | ½–½ | Mendez Machado | Campeonato Centroamericano y del Caribe SUB 20 2026 | Bird Opening: Dutch Variation | |
| Mar 31, 2026 | Mendez Machado | 1–0 | Guevara Ruiz | Campeonato Centroamericano y del Caribe SUB 20 2026 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Mar 30, 2026 | Ulloa Jimenez | 0–1 | Mendez Machado | Campeonato Centroamericano y del Caribe SUB 20 2026 | Four Knights Game: Scotch Variation Accepted, Main Line | |
| Mar 30, 2026 | Mendez Machado | 1–0 | Ramos Rodriguez | Campeonato Centroamericano y del Caribe SUB 20 2026 | Sicilian Defense: Chekhover Variation | |
| Mar 29, 2026 | Fraga Orta | ½–½ | Mendez Machado | Campeonato Centroamericano y del Caribe SUB 20 2026 | Torre Attack: Classical Defense | |
| Mar 28, 2026 | Mendez Machado | 1–0 | Alvarado Machado | Campeonato Centroamericano y del Caribe SUB 20 2026 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Mar 28, 2026 | Patel | 1–0 | Mendez Machado | Campeonato Centroamericano y del Caribe SUB 20 2026 | Four Knights Game | |
| Mar 7, 2026 | Montufar Porcell | 0–1 | Mendez Machado | Campeonato Nacional SUB20 Absoluto | Ruy Lopez: Morphy Defense, Classical Defense Deferred | |
| Mar 2, 2026 | Mendez Machado | 1–0 | Frias Acosta | Campeonato Nacional SUB20 Absoluto | Sicilian Defense: Moscow Variation | |
| Mar 2, 2026 | Jimenez Giron | 0–1 | Mendez Machado | Campeonato Nacional SUB20 Absoluto | Catalan Opening: Open Defense, Classical Line | |
| Mar 2, 2026 | Mendez Machado | ½–½ | Camargo Silva | Campeonato Nacional SUB20 Absoluto | Sicilian Defense: Chekhover Variation | |
| Mar 2, 2026 | Mendez Machado | 1–0 | Cueto Fernandez | Campeonato Nacional SUB20 Absoluto | Petrov's Defense: Classical Attack, Staunton Variation | |
| Mar 2, 2026 | Brown Camano | 0–1 | Mendez Machado | Campeonato Nacional SUB20 Absoluto | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Mar 2, 2026 | Mendez Machado | 1–0 | Oses Gonzalez | Campeonato Nacional SUB20 Absoluto | Caro-Kann Defense: Maróczy Variation | |
| Jan 11, 2026 | Mendez Machado | 1–0 | Sarat | Tercer Torneo Internacional Club Caissa Guatemala | Sicilian Defense: O'Kelly Variation, Venice System | |
| Jan 10, 2026 | Garcia Pantoja | 1–0 | Mendez Machado | Tercer Torneo Internacional Club Caissa Guatemala | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jan 10, 2026 | Mendez Machado | 1–0 | Aguirre B. | Tercer Torneo Internacional Club Caissa Guatemala | French Defense: Tarrasch Variation, Closed Variation | |
| Jan 9, 2026 | Garcia Medina | 0–1 | Mendez Machado | Tercer Torneo Internacional Club Caissa Guatemala | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jan 9, 2026 | Mendez Machado | 0–1 | Barrientos | Tercer Torneo Internacional Club Caissa Guatemala | Caro-Kann Defense: Two Knights Attack | |
| Jan 8, 2026 | Aroche Cobos | 0–1 | Mendez Machado | Tercer Torneo Internacional Club Caissa Guatemala | Nimzo-Indian Defense: Three Knights Variation | |
| Jan 8, 2026 | Mendez Machado | 1–0 | Cardenas Carbajal | Tercer Torneo Internacional Club Caissa Guatemala | Italian Game: Giuoco Pianissimo, Normal | |
| Jan 7, 2026 | Jacobson | 1–0 | Mendez Machado | Tercer Torneo Internacional Club Caissa Guatemala | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Jan 7, 2026 | Mendez Machado | 1–0 | Hernandez | Tercer Torneo Internacional Club Caissa Guatemala | Scandinavian Defense: Bronstein Variation | |
| Dec 31, 2025 | Cabezas Solano | 1–0 | Mendez Machado | XLVI Metropolitano Torneo Internacional 2025 Blitz | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Dec 31, 2025 | Mendez Machado | * | Calvo Gutierrez | XLVI Metropolitano Torneo Internacional 2025 Blitz | Modern Defense: Standard Defense | |
| Dec 31, 2025 | Chaves Villalobos | * | Mendez Machado | XLVI Metropolitano Torneo Internacional 2025 Blitz | Indian Defense: Knights Variation | |
| Dec 30, 2025 | Peraza Alvarez | * | Mendez Machado | XLVI Metropolitano Torneo Internacional 2025 Blitz | Torre Attack: Classical Defense | |
| Dec 30, 2025 | Mendez Machado | * | Diaz Charpentier | XLVI Metropolitano Torneo Internacional 2025 Blitz | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Dec 30, 2025 | Hernandez Perez | * | Mendez Machado | XLVI Metropolitano Torneo Internacional 2025 Blitz | Trompowsky Attack | |
| Dec 30, 2025 | Mendez Machado | * | Dinarte Villagra | XLVI Metropolitano Torneo Internacional 2025 Blitz | French Defense: Tarrasch Variation, Closed Variation | |
| Dec 30, 2025 | Viquez Alfaro | * | Mendez Machado | XLVI Metropolitano Torneo Internacional 2025 Blitz | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Dec 30, 2025 | Mayorga Araya | ½–½ | Mendez Machado | XLVI Metropolitano Torneo Internacional 2025 A | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Dec 29, 2025 | Mendez Machado | 0–1 | Shoker | XLVI Metropolitano Torneo Internacional 2025 Blitz | Modern Defense: Standard Defense | |
| Dec 29, 2025 | Mendez Machado | ½–½ | Cabezas Solano | XLVI Metropolitano Torneo Internacional 2025 A | Sicilian Defense: Snyder Variation | |
| Dec 29, 2025 | Mendez Machado | 1–0 | Jimenez Molina | XLVI Metropolitano Torneo Internacional 2025 A | Sicilian Defense: Hyperaccelerated Dragon | |
| Dec 28, 2025 | Peraza Alvarez | 0–1 | Mendez Machado | XLVI Metropolitano Torneo Internacional 2025 A | Ruy Lopez: Morphy Defense, Classical Defense Deferred | |
| Dec 28, 2025 | Mendez Machado | ½–½ | Magana Morales | XLVI Metropolitano Torneo Internacional 2025 A | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Dec 27, 2025 | Diaz Charpentier | ½–½ | Mendez Machado | XLVI Metropolitano Torneo Internacional 2025 A | Queen's Indian Defense: Riumin Variation | |
| Dec 27, 2025 | Mendez Machado | 1–0 | Ramirez Madrid | XLVI Metropolitano Torneo Internacional 2025 A | Sicilian Defense: Moscow Variation | |
| Dec 26, 2025 | Miranda Mesa | 1–0 | Mendez Machado | XLVI Metropolitano Torneo Internacional 2025 A | Four Knights Game: Spanish Variation, Rubinstein Variation, Henneberger Variation | |
| Dec 26, 2025 | Mendez Machado | ½–½ | Angulo Perez | XLVI Metropolitano Torneo Internacional 2025 A | Caro-Kann Defense: Two Knights Attack | |
| Oct 30, 2025 | Mendez Machado | 0–1 | Hidalgo Avila | XII Juegos Centroamericanos, Guatemala 2025 Masculino Blitz | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Oct 30, 2025 | Cabezas Solano | 1–0 | Mendez Machado | XII Juegos Centroamericanos, Guatemala 2025 Masculino Blitz | Catalan Opening: Open Defense, Classical Line | |
| Oct 30, 2025 | Morales Carlos | ½–½ | Mendez Machado | XII Juegos Centroamericanos, Guatemala 2025 Masculino Blitz | Indian Defense: Anti-Nimzo-Indian | |
| Oct 30, 2025 | Mendez Machado | ½–½ | Meza MartInez | XII Juegos Centroamericanos, Guatemala 2025 Masculino Blitz | French Defense: Tarrasch Variation, Closed Variation | |
| Oct 28, 2025 | Duran Vega | ½–½ | Mendez Machado | XII Juegos Centroamericanos, Guatemala 2025 MASCULINO | Indian Defense: Anti-Nimzo-Indian | |
| Oct 27, 2025 | Mendez Machado | ½–½ | Morales Carlos | XII Juegos Centroamericanos, Guatemala 2025 MASCULINO | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Oct 26, 2025 | Espinoza Solano | 1–0 | Mendez Machado | XII Juegos Centroamericanos, Guatemala 2025 MASCULINO | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Oct 25, 2025 | Mendez Machado | 1–0 | Martinez | XII Juegos Centroamericanos, Guatemala 2025 MASCULINO | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Oct 25, 2025 | Mendez Machado | 1–0 | Hidalgo Avila | XII Juegos Centroamericanos, Guatemala 2025 MASCULINO | Sicilian Defense: Chekhover Variation | |
| Jun 19, 2025 | Mendez Machado | 0–1 | Vasquez Alva | U20 Pan American Chess Championship OPEN 2025 | ? | |
| Jun 18, 2025 | Mendez Machado | 0–1 | Mou | U20 Pan American Chess Championship OPEN 2025 | Caro-Kann Defense: Maróczy Variation | |
| Jun 18, 2025 | Cherukuri | 1–0 | Mendez Machado | U20 Pan American Chess Championship OPEN 2025 | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jun 17, 2025 | Caceres Benitez | ½–½ | Mendez Machado | U20 Pan American Chess Championship OPEN 2025 | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Jun 16, 2025 | Mendez Machado | 1–0 | Navarro Canete | U20 Pan American Chess Championship OPEN 2025 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jun 16, 2025 | Mendez Machado | ½–½ | Marrujo Pardo | U20 Pan American Chess Championship OPEN 2025 | Italian Game: Giuoco Pianissimo, Normal | |
| Jun 15, 2025 | Sifuentes Alcantara | ½-½ | Mendez Machado | U20 Pan American Chess Championship OPEN 2025 | English Opening: King's English Variation | |
| Jun 14, 2025 | Mendez Machado | 0–1 | Campos Gomez | U20 Pan American Chess Championship OPEN 2025 | Sicilian Defense: Chekhover Variation | |
| Apr 22, 2025 | Mendez Machado | 0–1 | Jacobson | Round 1: Mendez Machado, Andre - Jacobson, Brandon | Italian Game: Giuoco Pianissimo, Normal | |
| Dec 31, 2024 | Mendez Machado | * | Maynard Salazar | Ronda 9: Mendez Machado, Andre - Maynard Salazar, Francis | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 31, 2024 | Ramos Rodriguez | 0–1 | Mendez Machado | Ronda 8: Ramos Rodriguez, Daniel - Mendez Machado, Andre | Bishop's Opening: Vienna Hybrid | |
| Dec 31, 2024 | Mendez Machado | 0–1 | Cabezas Solano | Ronda 7: Mendez Machado, Andre - Cabezas Solano, David Alejandro | Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order | |
| Dec 31, 2024 | Garcia | 0–1 | Mendez Machado | Ronda 6: Garcia, Angie - Mendez Machado, Andre | Scotch Game: Blumenfeld Attack | |
| Dec 31, 2024 | Mendez Machado | ½–½ | Lizano Quiros | Ronda 5: Mendez Machado, Andre - Lizano Quiros, Matias Haziel | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Dec 30, 2024 | Barboza Viquez | 0–1 | Mendez Machado | Ronda 4: Barboza Viquez, Martin Eduardo - Mendez Machado, Andre | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 30, 2024 | Mendez Machado | 0–1 | Bogantes Robleto | Ronda 3: Mendez Machado, Andre - Bogantes Robleto, Karina | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Dec 30, 2024 | Alvarez Ramirez | 0–1 | Mendez Machado | Ronda 2: Alvarez Ramirez, Emanuel - Mendez Machado, Andre | King's Gambit Accepted: Kieseritzky Gambit, Kolisch Defense | |
| Dec 30, 2024 | Mendez Machado | 1–0 | Garcia Fajardo | Ronda 1: Mendez Machado, Andre - Garcia Fajardo, Samuel | Caro-Kann Defense: Maróczy Variation | |
| Dec 30, 2024 | Mendez Machado | ½–½ | Arias | Ronda 9: Mendez Machado, Andre - Arias, Daniel | Sicilian Defense: Chekhover Variation | |
| Dec 29, 2024 | Mendez Machado | 1–0 | Pastor Carvajal | Ronda 8: Mendez Machado, Andre - Pastor Carvajal, Jeigoth | French Defense: Rubinstein Variation, Blackburne Defense | |
| Dec 29, 2024 | Mayorga Araya | 0–1 | Mendez Machado | Ronda 7: Mayorga Araya, Sofia - Mendez Machado, Andre | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Dec 28, 2024 | Mendez Machado | 0–1 | Delgado Rosas | Ronda 6: Mendez Machado, Andre - Delgado Rosas, Alex Antonio | Pirc Defense: Austrian Attack, Dragon Formation | |
| Dec 28, 2024 | Angulo Perez | 1–0 | Mendez Machado | Ronda 5: Angulo Perez, Sebastian - Mendez Machado, Andre | Ruy Lopez: Morphy Defense, Classical Defense Deferred | |
| Dec 27, 2024 | Mendez Machado | ½–½ | Lizano Quiros | Ronda 4: Mendez Machado, Andre - Lizano Quiros, Matias Haziel | Caro-Kann Defense: Maróczy Variation | |
| Dec 27, 2024 | Barboza Viquez | 0–1 | Mendez Machado | Ronda 3: Barboza Viquez, Martin Eduardo - Mendez Machado, Andre | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Dec 26, 2024 | Valverde Mora | 0–1 | Mendez Machado | Ronda 1: Valverde Mora, Mauricio - Mendez Machado, Andre | English Opening: King's English Variation, Two Knights Variation, Keres Variation | |
| Dec 24, 2024 | Mendez Machado | 0–1 | Miranda Mesa | Ronda 2: Mendez Machado, Andre - Miranda Mesa, Elier | Sicilian Defense: Delayed Alapin Variation | |
| Sep 20, 2024 | Avila Pavas | 1–0 | Mendez Machado | 45th FIDE Chess Olympiad | Queen's Pawn Game: London System, with e6 | |
| Sep 19, 2024 | Baasansuren | 1–0 | Mendez Machado | 45th FIDE Chess Olympiad | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Sep 18, 2024 | Kanz | 1–0 | Mendez Machado | 45th FIDE Chess Olympiad | English Opening: Four Knights System, Nimzowitsch Variation | |