| May 10, 2026 | Kurt | 1–0 | Zecha | Ronde 6: Kurt, Sascha - Zecha, Oscar | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| May 10, 2026 | Zecha | 1–0 | Becx | Ronde 5: Zecha, Oscar - Becx, Cesar | Ruy Lopez: Bird Variation | |
| May 9, 2026 | Simons | 0–1 | Zecha | Ronde 4: Simons, Rudy - Zecha, Oscar | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| May 9, 2026 | Oscar Zecha | 0–1 | Thomas Beerdsen | Ronde 3: Oscar Zecha - Thomas Beerdsen | Caro-Kann Defense: Advance Variation | |
| May 8, 2026 | Niels Van Happen | 0–1 | Oscar Zecha | Round 1: Niels Van Happen - Oscar Zecha | King's Indian Attack | |
| May 6, 2026 | Oscar Zecha | ½–½ | Luuk Baselmans | Ronde 2: Oscar Zecha - Luuk Baselmans | French Defense: Advance Variation, Euwe Variation | |
| May 1, 2026 | Zecha | 1–0 | Kurt | Round 12: Zecha, Oscar - Kurt, Sascha | Sicilian Defense: Najdorf Variation | |
| May 1, 2026 | Aravindhan | 0–1 | Zecha | Round 10: Aravindhan, Achyuth - Zecha, Oscar | King's Knight Opening: Konstantinopolsky | |
| May 1, 2026 | Zecha | ½–½ | Baarspul | Round 9: Zecha, Oscar - Baarspul, Bram | Sicilian Defense: Najdorf Variation | |
| May 1, 2026 | Groenewoud | 0–1 | Zecha | Round 8: Groenewoud, Joel - Zecha, Oscar | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| May 1, 2026 | De Jong | 0–1 | Zecha | Round 11: De Jong, Lode - Zecha, Oscar | Catalan Opening: Open Defense | |
| Apr 30, 2026 | Teianu | 0–1 | Zecha | Round 7: Teianu, Maxim - Zecha, Oscar | Queen's Gambit Declined: Ragozin Defense | |
| Apr 29, 2026 | Zecha | ½–½ | Frederiks | Round 6: Zecha, Oscar - Frederiks, Jesse | Ruy Lopez: Closed, Anti-Marshall | |
| Apr 29, 2026 | Aravindhan | ½–½ | Zecha | Round 5: Aravindhan, Achyuth - Zecha, Oscar | Italian Game: Giuoco Pianissimo, Normal | |
| Apr 27, 2026 | Winter | 0–1 | Zecha | Round 4: Winter, Sven - Zecha, Oscar | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Apr 26, 2026 | Zecha | 1–0 | Van Haaften | Round 3: Zecha, Oscar - Van Haaften, Jelle | Caro-Kann Defense: Advance Variation | |
| Apr 25, 2026 | Okita | ½–½ | Zecha | Round 2: Okita, Shinsaku - Zecha, Oscar | Queen's Pawn Game: Symmetrical Variation | |
| Apr 25, 2026 | Zecha | 0–1 | De Jong | Round 1: Zecha, Oscar - De Jong, Lode | Sicilian Defense: Najdorf Variation | |
| Apr 11, 2026 | Zecha | 1–0 | Mollema | Round 9: Zecha, Oscar - Mollema, Thomas | Petrov's Defense: Nimzowitsch Attack | |
| Mar 28, 2026 | Zepeda | 1–0 | Zecha | Round 6: Zepeda, Lorena - Zecha, Oscar | Bishop's Opening: Berlin Defense | |
| Mar 8, 2026 | Zecha | 0–1 | Van Roon | Meesterklasse | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| Dec 27, 2025 | Zecha | 1–0 | Blom | Round 7: Zecha, Oscar - Blom, Rens | Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line | |
| Dec 26, 2025 | Aarts | 0–1 | Zecha | Round 6: Aarts, Joaquin - Zecha, Oscar | Nimzo-Indian Defense: Sämisch Variation | |
| Dec 24, 2025 | Zecha | 0–1 | Nauanova Zhaniya | Round 4: Zecha, Oscar - Nauanova Zhaniya | Ware Opening | |
| Dec 23, 2025 | Koelmans | 0–1 | Zecha | Round 3: Koelmans, Jan Willem - Zecha, Oscar | Nimzo-Indian Defense: Reshevsky Variation | |
| Dec 2, 2025 | Jelic | 0–1 | Zecha | Round 9: Jelic, Bruno - Zecha, Oscar | Bogo-Indian Defense: Retreat Variation | |
| Dec 2, 2025 | Zecha | 1–0 | Baarspul | Round 8: Zecha, Oscar - Baarspul, Bram | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Sep 20, 2025 | Ritzerveld | 1–0 | Zecha | Round 1: Ritzerveld, Noah - Zecha, Oscar | Ruy Lopez: Morphy Defense | |
| Jul 30, 2025 | Zecha | 0–1 | Labruyere | Round 9: Zecha, Oscar - Labruyere, Roger | St. George Defense | |
| Jul 29, 2025 | Elferink | ½–½ | Zecha | Round 8: Elferink, Leon - Zecha, Oscar | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jul 28, 2025 | Zecha | 0–1 | Nemegeer | Round 7: Zecha, Oscar - Nemegeer, Arne | Indian Defense: Devin Gambit | |
| Jul 27, 2025 | Lont | ½–½ | Zecha | Round 6: Lont, Addy - Zecha, Oscar | Queen's Pawn Game: Colle System | |
| Jul 26, 2025 | Zecha | 1–0 | Blok | Round 5: Zecha, Oscar - Blok, Xaveer | Saragossa Opening | |
| Jul 25, 2025 | Aravindhan | 0–1 | Zecha | Round 4: Aravindhan, Achyuth - Zecha, Oscar | Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line | |
| Jul 24, 2025 | Zecha | 1–0 | Breuker | Round 3: Zecha, Oscar - Breuker, Dennis | Queen's Pawn Game: Colle System | |
| Jul 23, 2025 | Drugmand | 1–0 | Zecha | Round 2: Drugmand, Benoit - Zecha, Oscar | Sicilian Defense: Moscow Variation, Main Line | |
| Jul 16, 2025 | Zecha | 0–1 | Beerdsen | Round 1: Zecha, Oscar - Beerdsen, Thomas | Queen's Gambit Declined | |
| May 18, 2025 | Bhawsar | 1–0 | Zecha | Round 6: Bhawsar, Ashwath - Zecha, Oscar | Zukertort Opening: Queen's Gambit Invitation | |
| May 18, 2025 | Zecha | 0–1 | Kurt | Round 5: Zecha, Oscar - Kurt, Sascha | Sicilian Defense: Najdorf Variation | |
| May 17, 2025 | Lenting | 0–1 | Zecha | Round 4: Lenting, Roan - Zecha, Oscar | Four Knights Game: Spanish Variation, Double Spanish | |
| May 17, 2025 | Zecha | 1–0 | Simons | Round 3: Zecha, Oscar - Simons, Rudy | Polish Opening | |
| May 17, 2025 | Ganeshram | 1–0 | Zecha | Round 2: Ganeshram, Nirupa - Zecha, Oscar | Italian Game: Classical Variation, Greco Gambit, Traditional Line | |
| May 16, 2025 | Zecha | 1–0 | Issaad | Round 1: Zecha, Oscar - Issaad, Pascal | Van Geet Opening: Kluever Gambit | |
| May 2, 2025 | Dinanath | 0–1 | Zecha | Round 9: Dinanath, Hrdya - Zecha, Oscar | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| May 1, 2025 | Terlouw | 0–1 | Zecha | Round 8: Terlouw, Wouter - Zecha, Oscar | Zukertort Opening: Reversed Grünfeld | |
| Apr 30, 2025 | Zecha | 1–0 | Roebers | Round 7: Zecha, Oscar - Roebers, Bregje | Pirc Defense: 150 Attack | |
| Apr 30, 2025 | Thijssen | 1–0 | Zecha | Round 6: Thijssen, Freek - Zecha, Oscar | Italian Game: Classical Variation, Greco Gambit, Traditional Line | |
| Apr 29, 2025 | Zecha | ½–½ | Aravindhan | Round 5: Zecha, Oscar - Aravindhan, Achyuth | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Apr 28, 2025 | Zecha | 1–0 | Ozbek | Round 3: Zecha, Oscar - Ozbek, Ahmet Naim | English Opening: Anglo-Indian Defense, Hedgehog System | |
| Apr 28, 2025 | Teianu | 0–1 | Zecha | Round 4: Teianu, Sabin - Zecha, Oscar | Nimzo-Indian Defense | |
| Apr 27, 2025 | Guillaumond | 0–1 | Zecha | Round 2: Guillaumond, Matthieu - Zecha, Oscar | Scotch Game: Potter Variation | |
| Apr 26, 2025 | Zecha | 1–0 | Zhang | Round 1: Zecha, Oscar - Zhang, Xiheng | Nimzo-Larsen Attack: Indian Variation | |
| Jul 29, 2024 | Zecha | ½–½ | Aravindhan | Round 6: Zecha, Oscar - Aravindhan, Achyuth | Sicilian Defense: Open | |
| Jul 27, 2024 | Vos | 1–0 | Zecha | Round 5: Vos, Tjark - Zecha, Oscar | Nimzo-Indian Defense: Normal Variation, Ragozin Variation | |
| Jul 26, 2024 | Gortemaker | 0–1 | Zecha | Round 4: Gortemaker, Lucas - Zecha, Oscar | Ruy Lopez: Exchange Variation, Normal Variation | |
| Jul 25, 2024 | Zecha | ½–½ | Wink | Round 3: Zecha, Oscar - Wink, Luka | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jul 24, 2024 | Weidemann | ½–½ | Zecha | Round 2: Weidemann, Jakob - Zecha, Oscar | Italian Game: Rosentreter Gambit | |
| Jul 23, 2024 | Zecha | 0–1 | Labruyere | Round 1: Zecha, Oscar - Labruyere, Roger | Sicilian Defense: Najdorf Variation | |
| May 3, 2024 | Roorda | 0–1 | Zecha | Round 9: Roorda, Cas - Zecha, Oscar | Italian Game: Classical Variation, Giuoco Pianissimo | |
| May 2, 2024 | Zecha | 1–0 | Leenen | Round 8: Zecha, Oscar - Leenen, Boyd | Ruy Lopez: Closed, Anti-Marshall | |
| May 1, 2024 | Grooten | 1–0 | Zecha | Round 7: Grooten, Tommy - Zecha, Oscar | Nimzo-Indian Defense: Kmoch Variation | |
| May 1, 2024 | Ngangbam | ½–½ | Zecha | Round 6: Ngangbam, Chingthang - Zecha, Oscar | Italian Game: Classical Variation, Greco Gambit | |
| Apr 30, 2024 | Zecha | 1–0 | Frederiks | Round 5: Zecha, Oscar - Frederiks, Jesse | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Apr 29, 2024 | De Wit | ½–½ | Zecha | Round 4: De Wit, Evan - Zecha, Oscar | Nimzo-Indian Defense: Sämisch Variation | |
| Apr 29, 2024 | Zecha | 1–0 | Guillaumond | Round 3: Zecha, Oscar - Guillaumond, Matthieu | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Apr 28, 2024 | Ambrona Navarro | 1–0 | Zecha | Round 2: Ambrona Navarro, Himar - Zecha, Oscar | Nimzo-Indian Defense: Sämisch Variation | |
| Apr 27, 2024 | Zecha | ½–½ | Tetova | Round 1: Zecha, Oscar - Tetova, Amir | French Defense: Advance Variation, Paulsen Attack | |
| Dec 30, 2024 | Zecha | 1–0 | Wempe | Round 9: Zecha, Oscar - Wempe, Joost | English Opening: King's English Variation, Four Knights Variation, Flexible Line | |
| Dec 29, 2024 | Zecha | 0–1 | Grooten | Round 8: Zecha, Oscar - Grooten, Tommy | Sicilian Defense: Scheveningen Variation, Keres Attack | |
| Dec 28, 2024 | Mareau | 1–0 | Zecha | Round 7: Mareau, Timothe - Zecha, Oscar | Bishop's Opening: Berlin Defense | |
| Dec 27, 2024 | Zecha | 1–0 | Ratsma | Round 6: Zecha, Oscar - Ratsma, Midas | Ruy Lopez: Berlin Defense | |
| Dec 26, 2024 | Grooten | 1–0 | Zecha | Round 5: Grooten, Herman - Zecha, Oscar | Zukertort Opening: Nimzo-Larsen Variation | |
| Dec 24, 2024 | Zecha | ½–½ | Sharma | Round 4: Zecha, Oscar - Sharma, Dinesh K. | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Dec 23, 2024 | Bakija | ½–½ | Zecha | Round 3: Bakija, Alan - Zecha, Oscar | Catalan Opening: Open Defense | |
| Dec 22, 2024 | Van Foreest | 1–0 | Zecha | Round 2: Van Foreest, Machteld - Zecha, Oscar | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Dec 21, 2024 | Zecha | ½–½ | Van der Hagen | Round 1: Zecha, Oscar - Van der Hagen, Loek | Sicilian Defense: Richter-Rauzer Variation, Modern Variation | |
| Nov 2, 2024 | Grooten | ½–½ | Zecha | Round 9: Grooten, Herman - Zecha, Oscar | Queen's Gambit Declined: Ragozin Defense | |
| Nov 1, 2024 | De Jong | 1–0 | Zecha | Round 8: De Jong, Migchiel - Zecha, Oscar | Rubinstein Opening: Classical Defense | |
| Oct 31, 2024 | Zecha | 0–1 | Arnold | Round 7: Zecha, Oscar - Arnold, Rhys | Indian Defense: Devin Gambit | |
| Oct 30, 2024 | Zecha | 1–0 | Kazarjan | Round 5: Zecha, Oscar - Kazarjan, Gachatur | Sicilian Defense: Dragon Variation | |
| Oct 30, 2024 | Maatman | 1–0 | Zecha | Round 6: Maatman, Nick - Zecha, Oscar | King's Indian Attack: Spassky Variation | |
| Oct 29, 2024 | Duson | ½–½ | Zecha | Round 4: Duson, Robin - Zecha, Oscar | Nimzo-Indian Defense: Normal Variation | |
| Oct 28, 2024 | Zecha | ½–½ | Nissinen | Round 3: Zecha, Oscar - Nissinen, Niilo Man | Nimzo-Indian Defense: Sämisch Variation | |
| Oct 27, 2024 | Westerlaan | 0–1 | Zecha | Round 2: Westerlaan, Sander - Zecha, Oscar | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Oct 26, 2024 | Zecha | 0–1 | Bosboom | Round 1: Zecha, Oscar - Bosboom, Manuel | Sicilian Defense: Najdorf Variation | |
| Sep 14, 2024 | Zecha | 0–1 | Skrobic | Round 3: Zecha, Oscar - Skrobic, Dragan | Pterodactyl Defense: Eastern, Anhanguera | |
| Sep 14, 2024 | Zecha | 0–1 | Grochal | Round 3: Zecha, Oscar - Grochal, Joey | Sicilian Defense: Closed | |
| Sep 14, 2024 | Zecha | ½–½ | Van Arkel | Round 3: Zecha, Oscar - Van Arkel, Rogier | Sicilian Defense: Closed | |
| Sep 14, 2024 | Van Tellingen | ½–½ | Zecha | Round 3: Van Tellingen, Frank - Zecha, Oscar | Center Game: Kieseritzky Variation | |
| Sep 14, 2024 | Tikranian | 1–0 | Zecha | Round 3: Tikranian, Alik - Zecha, Oscar | Ruy Lopez: Morphy Defense, Wormald Attack | |
| Aug 1, 2024 | Shakhverdian | 1–0 | Zecha | Round 9: Shakhverdian, William - Zecha, Oscar | Queen's Pawn Game: Symmetrical Variation | |
| Jul 31, 2024 | Zecha | ½–½ | Goudriaan | Round 8: Zecha, Oscar - Goudriaan, Rafael | French Defense: Advance Variation | |
| Jul 30, 2024 | Van Kuijk | 0–1 | Zecha | Round 7: Van Kuijk, Vadim - Zecha, Oscar | Scotch Game: Potter Variation | |
| Oct 28, 2023 | Zecha | 0–1 | Van Helvoort | Hoogeveen Open 2023 | French Defense: Advance Variation, Paulsen Attack | |
| Oct 27, 2023 | Nijdam | ½–½ | Zecha | Hoogeveen Open 2023 | Rapport-Jobava System | |
| Oct 26, 2023 | Zecha | 1–0 | Boersma | Hoogeveen Open 2023 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Oct 25, 2023 | Boeren | ½–½ | Zecha | Hoogeveen Open 2023 | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Oct 25, 2023 | Kett | 1–0 | Zecha | Hoogeveen Open 2023 | King's Gambit Accepted: Abbazia Defense | |
| Oct 24, 2023 | Zecha | 0–1 | Mueer | Hoogeveen Open 2023 | Catalan Opening: Open Defense | |
| Oct 23, 2023 | Labruyere | ½–½ | Zecha | Hoogeveen Open 2023 | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |