| Dec 7, 2025 | Ghersinich | ½–½ | Colijn | Open Poreč 2025 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Dec 6, 2025 | Colijn | ½–½ | Brilej | Open Poreč 2025 | Indian Defense | |
| Dec 5, 2025 | Grbac | 0–1 | Colijn | Open Poreč 2025 | Rapport-Jobava System | |
| Dec 4, 2025 | Colijn | ½–½ | Bozinovic | Open Poreč 2025 | Benoni Defense | |
| Dec 4, 2025 | Zuzic | 0–1 | Colijn | Open Poreč 2025 | Benoni Defense: Modern Variation | |
| Dec 4, 2025 | Colijn | ½–½ | Mihokovic | Open Poreč 2025 | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Dec 3, 2025 | Berni | 0–1 | Colijn | Open Poreč 2025 | Queen's Indian Defense: Kasparov Variation | |
| Jun 15, 2025 | Colijn | 0–1 | Buenafe Moya | Round 6: Colijn, Stefan - Buenafe Moya, Javier | Queen's Gambit Declined: Ragozin Defense | |
| Jun 14, 2025 | Portero Rubio | 1–0 | Colijn | Round 5: Portero Rubio, Martin - Colijn, Stefan | Petrov's Defense: Modern Attack, Center Variation | |
| Jun 14, 2025 | Colijn | 1–0 | Castellano Lopez | Round 4: Colijn, Stefan - Castellano Lopez, Javier | Indian Defense | |
| Jun 14, 2025 | Torosyan Saghatelyan | 0–1 | Colijn | Round 3: Torosyan Saghatelyan, Arturo - Colijn, Stefan | Catalan Opening: Open Defense, Classical Line | |
| Jun 13, 2025 | Colijn | ½–½ | Cayon Pelaez | Round 2: Colijn, Stefan - Cayon Pelaez, Pablo | Queen's Pawn Game: Accelerated London System | |
| Jun 13, 2025 | Clemente Grande | 0–1 | Colijn | Round 1: Clemente Grande, Daniel - Colijn, Stefan | Nimzo-Larsen Attack: Classical Variation | |
| Jan 17, 2025 | Colijn | 1–0 | Piotraschke | praha2025 | Indian Defense | |
| Jan 16, 2025 | Fizer | 1–0 | Colijn | praha2025 | French Defense: Winawer Variation, Retreat Variation, Armenian Line | |
| Jan 15, 2025 | Colijn | ½–½ | Chan | praha2025 | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jan 14, 2025 | Musil | 0–1 | Colijn | praha2025 | English Opening: Neo-Catalan | |
| Jan 13, 2025 | Colijn | 1–0 | Zawal | praha2025 | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Jan 12, 2025 | Slacky | ½–½ | Colijn | praha2025 | Catalan Opening: Open Defense, Classical Line | |
| Jan 11, 2025 | Llopis de Aysa | 1–0 | Colijn | praha2025 | Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | |
| Jan 10, 2025 | Colijn | 1–0 | Bartoszczuk | praha2025 | Indian Defense | |
| Jun 8, 2024 | Colijn | * | Romero Romero | Round 8: Colijn, Stefan - Romero Romero, Sebastian | ? | |
| Jun 8, 2024 | Colijn | * | Perea Fruet | Round 7: Colijn, Stefan - Perea Fruet, Federico | ? | |
| Jun 8, 2024 | Zarandieta Lopera | * | Colijn | Round 6: Zarandieta Lopera, Jose Luis - Colijn, Stefan | ? | |
| Jun 8, 2024 | Ordonez Torres | * | Colijn | Round 5: Ordonez Torres, Maria Del Carmen - Colijn, Stefan | ? | |
| Jun 8, 2024 | Colijn | * | Carmona Palma | Round 4: Colijn, Stefan - Carmona Palma, Francisco de Paul | ? | |
| Jun 8, 2024 | Ortiz Alfaro | * | Colijn | Round 3: Ortiz Alfaro, Angel - Colijn, Stefan | ? | |
| Jun 8, 2024 | Colijn | * | Monge Fernandez | Round 2: Colijn, Stefan - Monge Fernandez, Carlos | ? | |
| Jun 8, 2024 | Colijn | * | Fontalva Perez | Round 1: Colijn, Stefan - Fontalva Perez, Miguel | ? | |
| Jun 2, 2024 | Serarols Mabras | 0–1 | Colijn | Round 7: Serarols Mabras, Bernat - Colijn, Stefan | Catalan Opening: Open Defense, Classical Line | |
| Jun 2, 2024 | Colijn | 1–0 | Fichtinger | Round 6: Colijn, Stefan - Fichtinger, Leopold | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Jun 1, 2024 | Van Hoolandt | ½–½ | Colijn | Round 5: Van Hoolandt, Patrick - Colijn, Stefan | Queen's Gambit Declined: Three Knights Variation | |
| Jun 1, 2024 | Colijn | 1–0 | Lopez Martinez | Round 4: Colijn, Stefan - Lopez Martinez, Jaime | Queen's Pawn Game: Accelerated London System | |
| May 31, 2024 | Colijn | 1–0 | Campos Rodriguez | Round 2: Colijn, Stefan - Campos Rodriguez, Alvaro | Rapport-Jobava System | |
| May 31, 2024 | Solianik | 0–1 | Colijn | Round 1: Solianik, Dmytro - Colijn, Stefan | Petrov's Defense: Nimzowitsch Attack | |
| May 2, 2024 | La Barbera | 0–1 | Colijn | Round 9: La Barbera, Manfredi - Colijn, Stefan | Nimzowitsch Defense: Declined Variation | |
| May 1, 2024 | Colijn | 0–1 | Agdelen | Round 8: Colijn, Stefan - Agdelen, Huseyin Can | Nimzo-Larsen Attack: Modern Variation | |
| Apr 30, 2024 | Terentiev | 0–1 | Colijn | Round 7: Terentiev, Sergei - Colijn, Stefan | Réti Opening: Advance Variation | |
| Apr 29, 2024 | Colijn | ½–½ | Mastrovasilis | Round 6: Colijn, Stefan - Mastrovasilis, Athanasios | Rapport-Jobava System | |
| Mar 28, 2024 | Colijn | ½–½ | Ceres | Round 2: Colijn, Stefan - Ceres, Dragos | Rapport-Jobava System | |
| Sep 7, 2024 | Colijn | 1–0 | Bendayan Claros | Round 7: Colijn, Stefan - Bendayan Claros, Aaron | Queen's Pawn Game: Accelerated London System | |
| Sep 7, 2024 | Cano Mateos | 0–1 | Colijn | Round 6: Cano Mateos, Pablo - Colijn, Stefan | Petrov's Defense: Three Knights Game | |
| Sep 6, 2024 | Colijn | ½–½ | Lezhepekova | Round 3: Colijn, Stefan - Lezhepekova, Veronika | Queen's Pawn Game: Zukertort Variation | |
| Sep 6, 2024 | Garcia Gimenez | 1–0 | Colijn | Round 4: Garcia Gimenez, Santiago - Colijn, Stefan | French Defense: Winawer Variation, Delayed Exchange Variation | |
| Sep 5, 2024 | Colijn | 1–0 | Silva Olsson | Round 1: Colijn, Stefan - Silva Olsson, Angel | Indian Defense | |
| Sep 5, 2024 | Fernandez Lopez | 0–1 | Colijn | Round 2: Fernandez Lopez, Francisco J. - Colijn, Stefan | Semi-Slav Defense: Normal Variation | |
| Apr 10, 2023 | Colijn | 0–1 | Ceres | Paphos | King's Indian Attack: Yugoslav Variation | |
| Apr 8, 2023 | Colijn | 0–1 | Mastrovasilis | Paphos | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jul 18, 2021 | Colijn | 1–0 | Fournier | 1st Bastia Open | Benoni Defense: Classical Variation, New York Variation | |
| Jul 17, 2021 | Battesti | 0–1 | Colijn | 1st Bastia Open | Slav Defense: Exchange Variation, Boor Attack | |
| Jul 16, 2021 | Colijn | 0–1 | Mastrovasilis | 1st Bastia Open | Slav Defense: Soultanbeieff Variation | |
| Jul 15, 2021 | Colijn | 1–0 | Fedorchuk | 1st Bastia Open | Sicilian Defense: French Variation | |
| Jul 14, 2021 | Colijn | 0–1 | Moroni | 1st Bastia Open | Modern Defense: Standard Defense | |
| Jul 14, 2021 | Roux | 0–1 | Colijn | 1st Bastia Open | French Defense: Schlechter Variation | |
| Jul 13, 2021 | Colijn | 1–0 | Berthaut | 1st Bastia Open | King's Indian Defense: Fianchetto Variation, Kavalek Defense | |
| Jul 13, 2021 | Podvin | 0–1 | Colijn | 1st Bastia Open | Richter-Veresov Attack | |
| Jul 12, 2021 | Don Ignazi | 0–1 | Colijn | 1st Bastia Open | Petrov's Defense: French Attack | |