| Jun 15, 2026 | Salazar Perez | 1–0 | Acosta Nunez | Round 7: Salazar Perez, Nicolas David - Acosta Nunez, Miguel | King's Pawn Game | |
| Jun 15, 2026 | Acosta Nunez | 0–1 | Barraza Castaneda | Round 6: Acosta Nunez, Miguel - Barraza Castaneda, Samir Alejandro | Center Game: Halasz-McDonnell Gambit | |
| Jun 15, 2026 | Camargo Pinzon | 0–1 | Acosta Nunez | Round 3: Camargo Pinzon, Cesar Josue - Acosta Nunez, Miguel | ? | |
| Jun 14, 2026 | Ayala Delgado | 0–1 | Acosta Nunez | Round 5: Ayala Delgado, Gabriela - Acosta Nunez, Miguel | Sicilian Defense: Smith-Morra Gambit Accepted, Kan Formation | |
| Jun 14, 2026 | Acosta Nunez | 0–1 | Cifuentes Triana | Round 4: Acosta Nunez, Miguel - Cifuentes Triana, Maikol Stiven | Pirc Defense: Austrian Attack, Ljubojevic Variation | |
| Jun 13, 2026 | Acosta Nunez | 0–1 | Guevara Garcia | Round 2: Acosta Nunez, Miguel - Guevara Garcia, Samuel Alejandro | Caro-Kann Defense: Maróczy Variation | |
| Jun 13, 2026 | Baez Guerrero | 0–1 | Acosta Nunez | Round 1: Baez Guerrero, Santiago - Acosta Nunez, Miguel | Sicilian Defense: Kan Variation, Modern Variation | |
| May 24, 2026 | Acosta Nunez | 0–1 | Barrera Giraldo | Round 7: Acosta Nunez, Miguel - Barrera Giraldo, Santiago | Italian Game: Giuoco Piano | |
| May 24, 2026 | Jimenez Pirajan | 1–0 | Acosta Nunez | Round 6: Jimenez Pirajan, Samuel Esteban - Acosta Nunez, Miguel | ? | |
| May 24, 2026 | Socha | 1–0 | Acosta Nunez | Round 5: Socha, Juan Pablo - Acosta Nunez, Miguel | English Opening: Symmetrical Variation | |
| May 24, 2026 | Vega Rosas | ½–½ | Acosta Nunez | Round 3: Vega Rosas, Brayan Rafael - Acosta Nunez, Miguel | Rapport-Jobava System | |
| May 24, 2026 | Acosta Nunez | 0–1 | Mena Cordoba | Round 4: Acosta Nunez, Miguel - Mena Cordoba, Yamil Octavio | King's Gambit Declined: Queen's Knight Defense | |
| May 24, 2026 | Acosta Nunez | 1–0 | Angulo | Round 2: Acosta Nunez, Miguel - Angulo, Ariolfo | Alekhine Defense: Four Pawns Attack, Main Line | |
| May 24, 2026 | Estrada Velandia | 0–1 | Acosta Nunez | Round 1: Estrada Velandia, Henry Andres - Acosta Nunez, Miguel | ? | |
| Apr 26, 2026 | Acosta Nunez | 0–1 | Dominguez Gonzalez | Round 8: Acosta Nunez, Miguel - Dominguez Gonzalez, Juan Camilo | Sicilian Defense: Smith-Morra Gambit Accepted | |
| Apr 26, 2026 | Camacho Hernandez | 1–0 | Acosta Nunez | Round 7: Camacho Hernandez, Daniel Arturo - Acosta Nunez, Miguel | Yusupov-Rubinstein System | |
| Apr 26, 2026 | Acosta Nunez | 1–0 | Ropero Penaranda | Round 6: Acosta Nunez, Miguel - Ropero Penaranda, Miguel Angel | Scandinavian Defense: Modern Variation | |
| Apr 26, 2026 | Aponte Monsalve | 1–0 | Acosta Nunez | Round 5: Aponte Monsalve, Jorge Enrique - Acosta Nunez, Miguel | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Apr 26, 2026 | Acosta Nunez | 1–0 | Narvaez Gonzalez | Round 4: Acosta Nunez, Miguel - Narvaez Gonzalez, Javier Alejandro | Center Game: Halasz-McDonnell Gambit | |
| Apr 26, 2026 | Duque Pinzon | 1–0 | Acosta Nunez | Round 3: Duque Pinzon, Manuel Santiago - Acosta Nunez, Miguel | English Opening: Symmetrical Variation, Three Knights Variation | |
| Apr 26, 2026 | Acosta Nunez | * | Cardenas Ardila | Round 2: Acosta Nunez, Miguel - Cardenas Ardila, Josue | Sicilian Defense: O'Kelly Variation, Normal System, Taimanov Line | |
| Apr 26, 2026 | Pinzon | 1–0 | Acosta Nunez | Round 1: Pinzon, Jairo David - Acosta Nunez, Miguel | English Opening: Symmetrical Variation | |
| Apr 20, 2026 | Bernal Posada | 1–0 | Acosta Nunez | Round 7: Bernal Posada, Diego - Acosta Nunez, Miguel | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Apr 20, 2026 | Puentes | 1–0 | Acosta Nunez | Round 6: Puentes, Jhon Fredy - Acosta Nunez, Miguel | ? | |
| Apr 20, 2026 | Acosta Nunez | 0–1 | Murcia Molina | Round 5: Acosta Nunez, Miguel - Murcia Molina, Manuel Hernando | Sicilian Defense: Closed | |
| Apr 20, 2026 | Mendez Gomez | 1–0 | Acosta Nunez | Round 4: Mendez Gomez, Robert Antonio - Acosta Nunez, Miguel | Indian Defense: Accelerated London System | |
| Apr 20, 2026 | Jhosep Daniel Almanza Duarte | 0–1 | Acosta Nunez | Round 2: Jhosep Daniel Almanza Duarte - Acosta Nunez, Miguel | Sicilian Defense: Modern Variations | |
| Apr 20, 2026 | Acosta Nunez | 1–0 | Jimenez Pirajan | Round 3: Acosta Nunez, Miguel - Jimenez Pirajan, Samuel Esteban | Sicilian Defense: Grand Prix Attack | |
| Apr 19, 2026 | Acosta Nunez | 0–1 | Estrada Velandia | Round 1: Acosta Nunez, Miguel - Estrada Velandia, Henry Andres | Caro-Kann Defense: Maróczy Variation | |
| Apr 4, 2026 | Acosta Nunez | 0–1 | Chaparro Jimenez | Round 7: Acosta Nunez, Miguel - Chaparro Jimenez, Sebastian | Center Game: Halasz-McDonnell Gambit | |
| Apr 4, 2026 | Cuellar Canosa | 1–0 | Acosta Nunez | Round 6: Cuellar Canosa, Nicolas - Acosta Nunez, Miguel | Nimzo-Larsen Attack: Modern Variation | |
| Apr 4, 2026 | Acosta Nunez | 1–0 | Cantor Pardo | Round 5: Acosta Nunez, Miguel - Cantor Pardo, Antonio | Caro-Kann Defense: Maróczy Variation | |
| Apr 3, 2026 | Acosta Nunez | 1–0 | Marulanda | Round 3: Acosta Nunez, Miguel - Marulanda, Andrea Sofia | Center Game: Halasz-McDonnell Gambit | |
| Apr 3, 2026 | Torres Millan | ½–½ | Acosta Nunez | Round 4: Torres Millan, Kevin Gilberto - Acosta Nunez, Miguel | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Apr 2, 2026 | Ayala Delgado | 1–0 | Acosta Nunez | Round 2: Ayala Delgado, Sergio Alejandro - Acosta Nunez, Miguel | Sicilian Defense: Alapin Variation | |
| Apr 1, 2026 | Acosta Nunez | 1–0 | Sergio Orjuela Rios | Round 1: Acosta Nunez, Miguel - Sergio Orjuela Rios | Caro-Kann Defense: Rasa-Studier Gambit | |
| Mar 28, 2026 | Vargas Sanchez | 1–0 | Acosta Nunez | Round 7: Vargas Sanchez, Mauricio - Acosta Nunez, Miguel | Queen's Pawn Game | |
| Mar 28, 2026 | Acosta Nunez | 0–1 | Chavarro Fraija | Round 6: Acosta Nunez, Miguel - Chavarro Fraija, Juan Pablo | Sicilian Defense: Closed | |
| Mar 28, 2026 | Salazar Castelblanco | 0–1 | Acosta Nunez | Round 5: Salazar Castelblanco, Francisco Javier - Acosta Nunez, Miguel | Sicilian Defense: Kan Variation, Knight Variation | |
| Mar 28, 2026 | Acosta Nunez | 0–1 | Galvis Cala | Round 4: Acosta Nunez, Miguel - Galvis Cala, Miguel Angel | Sicilian Defense: Closed | |
| Mar 28, 2026 | Samuel Daniel Castellanos Castaneda | 0–1 | Acosta Nunez | Round 3: Samuel Daniel Castellanos Castaneda - Acosta Nunez, Miguel | Sicilian Defense: Kan Variation, Knight Variation | |
| Mar 28, 2026 | Acosta Nunez | 0–1 | Mena Cordoba | Round 2: Acosta Nunez, Miguel - Mena Cordoba, Yamil Octavio | Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation | |
| Feb 22, 2026 | Cardozo Munar | 1–0 | Acosta Nunez | Round 3: Cardozo Munar, Carlos Eduardo - Acosta Nunez, Miguel | Trompowsky Attack | |
| Feb 22, 2026 | Pinzon | 1–0 | Acosta Nunez | Round 1: Pinzon, Jairo David - Acosta Nunez, Miguel | English Opening: Symmetrical Variation | |
| Feb 16, 2026 | Acosta Nunez | 1–0 | Rodriguez Velasco | Round 1: Acosta Nunez, Miguel - Rodriguez Velasco, German Enrique | Sicilian Defense: Grand Prix Attack | |
| Feb 16, 2026 | Chaucanes | 1–0 | Acosta Nunez | Round 2: Chaucanes, Lina Marcela - Acosta Nunez, Miguel | Sicilian Defense: Smith-Morra Gambit Accepted, Paulsen Formation | |
| Feb 16, 2026 | Garcia Alarcon | 1–0 | Acosta Nunez | Round 3: Garcia Alarcon, Alvaro - Acosta Nunez, Miguel | Sicilian Defense: McDonnell Attack | |
| Feb 16, 2026 | Acosta Nunez | 1–0 | Tarazona Villamizar | Round 4: Acosta Nunez, Miguel - Tarazona Villamizar, Jose Rafael | Scandinavian Defense: Marshall Variation | |
| Feb 16, 2026 | Acosta Nunez | ½–½ | Leguizamo Cortes | Round 5: Acosta Nunez, Miguel - Leguizamo Cortes, Laura Juliana | Sicilian Defense: Closed | |
| Feb 16, 2026 | Angulo Ricardo | 1–0 | Acosta Nunez | Round 6: Angulo Ricardo, Milton - Acosta Nunez, Miguel | Torre Attack: Classical Defense | |
| Feb 16, 2026 | Acosta Nunez | 0–1 | Mejia Rosas | Round 7: Acosta Nunez, Miguel - Mejia Rosas, Dario | Italian Game: Giuoco Piano | |
| Jan 18, 2026 | Acosta Nunez | 0–1 | Rojas Lozano | Round 6: Acosta Nunez, Miguel - Rojas Lozano, Dilan Sneider | ? | |
| Jan 18, 2026 | Garcia Diaz | 1–0 | Acosta Nunez | Round 5: Garcia Diaz, Juan Manuel - Acosta Nunez, Miguel | Sicilian Defense: Smith-Morra Gambit Accepted | |
| Jan 18, 2026 | Acosta Nunez | 0–1 | Chavarro Fraija | Round 4: Acosta Nunez, Miguel - Chavarro Fraija, Juan Pablo | French Defense: Horwitz Attack, Papa-Ticulat Gambit | |
| Jan 18, 2026 | Melo Ramirez | 0–1 | Acosta Nunez | Round 3: Melo Ramirez, Marlon Roman - Acosta Nunez, Miguel | Indian Defense: Accelerated London System | |
| Jan 18, 2026 | Acosta Nunez | 1–0 | Agudelo Guevara | Round 2: Acosta Nunez, Miguel - Agudelo Guevara, Mariana | King's Pawn Game: Maróczy Defense | |
| Jan 18, 2026 | Castro Lombana | 1–0 | Acosta Nunez | Round 1: Castro Lombana, Juan Pablo - Acosta Nunez, Miguel | Hungarian Opening: Sicilian Invitation | |
| Dec 23, 2025 | Acosta Nunez | 0–1 | Mejia Herrera | Round 4: Acosta Nunez, Miguel - Mejia Herrera, Ruben Alexander | Sicilian Defense: Wing Gambit | |
| Dec 23, 2025 | Naranjo Diaz | 1–0 | Acosta Nunez | Round 3: Naranjo Diaz, Juan Felipe - Acosta Nunez, Miguel | Sicilian Defense: Alapin Variation | |
| Dec 23, 2025 | Pena | 1–0 | Acosta Nunez | Round 1: Pena, Fernando - Acosta Nunez, Miguel | Sicilian Defense: McDonnell Attack | |
| Nov 23, 2025 | Acosta Nunez | 0–1 | Ladino Hernandez | Round 7: Acosta Nunez, Miguel - Ladino Hernandez, Angel Joel | French Defense: Horwitz Attack, Papa-Ticulat Gambit | |
| Nov 23, 2025 | Bustos Munoz | 0–1 | Acosta Nunez | Round 6: Bustos Munoz, Jose Omar - Acosta Nunez, Miguel | Sicilian Defense: Kan Variation, Knight Variation | |
| Nov 23, 2025 | Acosta Nunez | 1–0 | Diaz Guevara | Round 5: Acosta Nunez, Miguel - Diaz Guevara, Juan Andres | Center Game: Halasz-McDonnell Gambit | |
| Nov 23, 2025 | Bernal Posada | 0–1 | Acosta Nunez | Round 4: Bernal Posada, Diego - Acosta Nunez, Miguel | Sicilian Defense: Kan Variation, Knight Variation | |
| Nov 23, 2025 | Acosta Nunez | 0–1 | Romero S | Round 3: Acosta Nunez, Miguel - Romero S, Juan Sebastian | French Defense: Horwitz Attack, Papa-Ticulat Gambit | |
| Nov 23, 2025 | Ramirez Beltran | 1–0 | Acosta Nunez | Round 2: Ramirez Beltran, Francisco Javier - Acosta Nunez, Miguel | Sicilian Defense: Kan Variation | |
| Oct 19, 2025 | Castillo | 1–0 | Acosta Nunez | Round 6: Castillo, Samir - Acosta Nunez, Miguel | Indian Defense | |
| Oct 19, 2025 | Acosta Nunez | 1–0 | Mejia Rosas | Round 5: Acosta Nunez, Miguel - Mejia Rosas, Dario | French Defense: Horwitz Attack | |
| Oct 19, 2025 | Santos Rios | 1–0 | Acosta Nunez | Round 4: Santos Rios, Carlos Gabriel - Acosta Nunez, Miguel | Nimzo-Larsen Attack: English Variation | |
| Oct 19, 2025 | Acosta Nunez | 1–0 | Alarcon | Round 3: Acosta Nunez, Miguel - Alarcon, Daniel Felipe | Pirc Defense | |
| Oct 19, 2025 | Angulo | 1–0 | Acosta Nunez | Round 2: Angulo, Ariolfo - Acosta Nunez, Miguel | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Oct 10, 2025 | Arboleda Diaz | 1–0 | Acosta Nunez | Round 3: Arboleda Diaz, Jhon Alexander - Acosta Nunez, Miguel | Indian Defense | |
| Oct 9, 2025 | Acosta Nunez | 1–0 | Colina | Round 2: Acosta Nunez, Miguel - Colina, Lugger Jesus | Sicilian Defense: Grand Prix Attack | |
| Sep 16, 2025 | Rodriguez Munoz | 1–0 | Acosta Nunez | Ronda 5: Rodriguez Munoz, Cesar Esteban - Acosta Nunez, Miguel | Sicilian Defense: French Variation | |
| Sep 16, 2025 | Acosta Nunez | 0–1 | Lerma Munoz | Ronda 7: Acosta Nunez, Miguel - Lerma Munoz, Luis Alberto | Petrov's Defense: Three Knights Game | |
| Sep 16, 2025 | Rodriguez Rodriguez | 1–0 | Acosta Nunez | Ronda 6: Rodriguez Rodriguez, Jeison Camilo - Acosta Nunez, Miguel | King's Pawn Game | |
| Sep 16, 2025 | Acosta Nunez | 1–0 | Bernal Posada | Ronda 4: Acosta Nunez, Miguel - Bernal Posada, Diego | King's Pawn Game: Beyer Gambit | |
| Sep 16, 2025 | Ladino Hernandez | 1–0 | Acosta Nunez | Ronda 3: Ladino Hernandez, Angel Joel - Acosta Nunez, Miguel | Sicilian Defense: Kan Variation, Knight Variation | |
| Sep 16, 2025 | Acosta Nunez | 1–0 | Rueda Villamizar | Ronda 2: Acosta Nunez, Miguel - Rueda Villamizar, Nicolas | Sicilian Defense: Grand Prix Attack | |
| Sep 16, 2025 | Posada | 1–0 | Acosta Nunez | Ronda 1: Posada, Juan Manuel - Acosta Nunez, Miguel | Sicilian Defense: Smith-Morra Gambit Accepted, Paulsen Formation | |
| Dec 8, 2024 | Chaucanes | 1–0 | Acosta Nunez | Round 8: Chaucanes, Lina Marcela - Acosta Nunez, Miguel | King's Pawn Game | |
| Dec 7, 2024 | Acosta Nunez | ½–½ | Castaneda | Round 7: Acosta Nunez, Miguel - Castaneda, Victor | French Defense: St. George Defense | |
| Dec 6, 2024 | Laverde | 1–0 | Acosta Nunez | Round 4: Laverde, Luis Eduardo - Acosta Nunez, Miguel | Sicilian Defense: Kan Variation, Knight Variation | |
| Dec 5, 2024 | Valle | 1–0 | Acosta Nunez | Round 2: Valle, Efrain - Acosta Nunez, Miguel | Zukertort Opening | |