| Jun 30, 2025 | Van der Maas | 0–1 | Torres Hernandez | Quarter-Finals | Game 2: Van der Maas, Martien - Torres Hernandez, Deivy Santiago | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jun 30, 2025 | Torres Hernandez | ½–½ | Van der Maas | Quarter-Finals | Game 1: Torres Hernandez, Deivy Santiago - Van der Maas, Martien | Nimzo-Indian Defense: Three Knights Variation | |
| Jun 29, 2025 | Guevara Rincon | 1–0 | Van der Maas | IRT Clasico Kallpa Open 2025 | Scotch Game: Blumenfeld Attack | |
| Jun 29, 2025 | Van der Maas | 0–1 | Tirado Veliz | Round 5: Van der Maas, Martien - Tirado Veliz, Henry Jose | Scandinavian Defense: Bronstein Variation | |
| Jun 28, 2025 | Estrella Becerra | 0–1 | Van der Maas | IRT Clasico Kallpa Open 2025 | English Opening: Carls-Bremen System | |
| Jun 28, 2025 | Van der Maas | 0–1 | Gonzalez Lopez | Round 3: Van der Maas, Martien - Gonzalez Lopez, Nicolas Mateo | Caro-Kann Defense: Panov Attack, Fianchetto Defense | |
| Jun 27, 2025 | Santagada | 0–1 | Van der Maas | IRT Clasico Kallpa Open 2025 | Italian Game: Scotch Gambit, Max Lange Attack | |
| Jun 26, 2025 | Van der Maas | 1–0 | Chaucanes | Round 1: Van der Maas, Martien - Chaucanes, Lina Marcela | Sicilian Defense: Najdorf Variation, English Attack | |
| Jun 8, 2025 | Van der Maas | 1–0 | Gaitan Orjuela | Round 7: Van der Maas, Martien - Gaitan Orjuela,Gustavo Alonso | Italian Game: Paris Defense | |
| Jun 8, 2025 | Guzman Contreras | 1–0 | Van der Maas | Round 6: Guzman Contreras, Jhoan Sebastian - Van der Maas, Martien | French Defense: Exchange Variation | |
| Jun 8, 2025 | Van der Maas | 0–1 | Ordonez Gonzalez | Round 5: Van der Maas, Martien - Ordonez Gonzalez, Gabriel | Sicilian Defense: French Variation, Normal | |
| Jun 8, 2025 | Barrera Pinilla | ½–½ | Van der Maas | Round 4: Barrera Pinilla, Nicolas - Van der Maas, Martien | Ruy Lopez: Open | |
| Jun 8, 2025 | Van der Maas | 1–0 | Casares Contreras | Round 3: Van der Maas, Martien - Casares Contreras, Jose Gabriel | Caro-Kann Defense: Panov Attack, Modern Defense | |
| Jun 8, 2025 | Gonzalez Granados | 0–1 | Van der Maas | IRT Abierto Alekhine Club KALLPA 2025 | Indian Defense: Tartakower Attack | |
| Jun 8, 2025 | Van der Maas | 0–1 | Lopez Sanchez | Round 1: Van der Maas, Martien - Lopez Sanchez, Juan Felipe | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Nov 14, 2024 | Van der Maas | 1–0 | Gomez Becerra | Round 5: Van der Maas, Martien - Gomez Becerra, Lorenzo | Scandinavian Defense: Schiller-Pytel Variation | |
| Nov 14, 2024 | Van der Maas | 1–0 | Agustin Duran Criollo | Round 5: Van der Maas, Martien - Agustin Duran Criollo | Sicilian Defense: Dragon Variation, Classical Variation | |
| Nov 14, 2024 | Agustin Duran Criollo | ½–½ | Van der Maas | Round 6: Agustin Duran Criollo - Van der Maas, Martien | Italian Game: Giuoco Pianissimo | |
| Nov 14, 2024 | Gonzalez Guzman | 0–1 | Van der Maas | Round 6: Gonzalez Guzman, Nicolas - Van der Maas, Martien | Vienna Game: Max Lange Defense | |
| — | Van der Maas | 1–0 | Samuel Martinez Parra | Round 1: Van der Maas, Martien - Samuel Martinez Parra | Caro-Kann Defense: Panov Attack | |
| — | Van der Maas | ½–½ | Contreras Salcedo | Round 3: Van der Maas, Martien - Contreras Salcedo, Samuel Esteban | Italian Game: Classical Variation, Giuoco Pianissimo | |
| — | Van der Maas | 1–0 | Joaquin Fresneda Castiblanco | Round 5: Van der Maas, Martien - Joaquin Fresneda Castiblanco | ? | |
| — | Van der Maas | 1–0 | Ayala Delgado | Round 7: Van der Maas, Martien - Ayala Delgado, Gabriela | ? | |
| — | Gomez Ardila | 0–1 | Van der Maas | Round 2: Gomez Ardila, Juan Jacobo - Van der Maas, Martien | Nimzo-Indian Defense: Classical Variation | |
| — | Polania Naranjo | ½–½ | Van der Maas | Round 4: Polania Naranjo, Laura Camila - Van der Maas, Martien | Italian Game: Two Knights Defense | |
| — | Daniel Felipe Martinez Parra | 0–1 | Van der Maas | Round 6: Daniel Felipe Martinez Parra - Van der Maas, Martien | Ruy Lopez: Open | |
