| Apr 20, 2026 | Nathalia Eraso Guerrero | 0–1 | Castellanos Castaneda | Round 7: Nathalia Eraso Guerrero - Castellanos Castaneda, Samuel Daniel | Indian Defense: Knights Variation | |
| Apr 20, 2026 | Castellanos Castaneda | 0–1 | Monsalve Martinez | Round 6: Castellanos Castaneda, Samuel Daniel - Monsalve Martinez, Javier Ricardo | Italian Game: Giuoco Pianissimo | |
| Apr 20, 2026 | Ibanez Rueda | 0–1 | Castellanos Castaneda | Round 5: Ibanez Rueda, Federico - Castellanos Castaneda, Samuel Daniel | Sicilian Defense: Smith-Morra Gambit | |
| Apr 20, 2026 | Castellanos Castaneda | 0–1 | Vargas Farfan | Round 4: Castellanos Castaneda, Samuel Daniel - Vargas Farfan, Juan Sebastian | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Apr 20, 2026 | Intencipa Acosta | 1–0 | Castellanos Castaneda | Round 3: Intencipa Acosta, Fabian Armando - Castellanos Castaneda, Samuel Daniel | Sicilian Defense: Closed | |
| Apr 19, 2026 | Contreras R | * | Castellanos Castaneda | Round 1: Contreras R, Wilson Mauricio - Castellanos Castaneda, Samuel Daniel | Vienna Gambit, with Max Lange Defense | |
| Mar 28, 2026 | Samuel Daniel Castellanos Castaneda | 0–1 | Davila Ariza | Round 5: Samuel Daniel Castellanos Castaneda - Davila Ariza, Daniel | Sicilian Defense | |
| 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 | Samuel Daniel Castellanos Castaneda | 0–1 | Rua Palacio | Round 1: Samuel Daniel Castellanos Castaneda - Rua Palacio, Nora | King's Knight Opening: Normal Variation | |
| Mar 23, 2026 | Leguizamo Corzo | 1–0 | Samuel Daniel Castellanos Castaneda | Round 7: Leguizamo Corzo, Hesson Samuel - Samuel Daniel Castellanos Castaneda | Sicilian Defense: Najdorf Variation, English Attack | |
| Mar 23, 2026 | Samuel Daniel Castellanos Castaneda | 0–1 | Palacios Munoz | Round 6: Samuel Daniel Castellanos Castaneda - Palacios Munoz, James Samuel | Sicilian Defense: French Variation | |
| Mar 22, 2026 | Rosales Rojas | 0–1 | Samuel Daniel Castellanos Castaneda | Round 5: Rosales Rojas, Juan Sebastian - Samuel Daniel Castellanos Castaneda | Sicilian Defense: Najdorf Variation, English Attack | |
| Mar 22, 2026 | Samuel Daniel Castellanos Castaneda | 1–0 | Sotelo Aguirre | Round 4: Samuel Daniel Castellanos Castaneda - Sotelo Aguirre, Jeronimo | Sicilian Defense: Dragon Variation, Classical Variation | |
| Mar 22, 2026 | Alcala Manotas | 1–0 | Samuel Daniel Castellanos Castaneda | Round 3: Alcala Manotas, Sebastian Samuel - Samuel Daniel Castellanos Castaneda | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Mar 20, 2026 | Sierra Romero | 1–0 | Samuel Daniel Castellanos Castaneda | Round 1: Sierra Romero, Ronald Esteban - Samuel Daniel Castellanos Castaneda | Scotch Game | |
