| Feb 20, 2026 | Becx | 0–1 | Pijpers | Round 1: Becx, Cesar - Pijpers, Arthur | Bird Opening: Dutch Variation | |
| Feb 14, 2026 | Hinrichs | 1–0 | Becx | 5. Int. Baden-Badener Faschingsopen | Dutch Defense: Hopton Attack | |
| Jul 20, 2025 | Arman | 1–0 | Becx | Round 3: Arman, Deniz - Becx, Cesar | Dutch Defense: Staunton Gambit, Chigorin Variation | |
| May 18, 2025 | Verhoeven | ½–½ | Becx | Round 6: Verhoeven, Lars - Becx, Cesar | English Opening: Anglo-Dutch Defense | |
| May 18, 2025 | Becx | 1–0 | Glasbeek | Round 5: Becx, Cesar - Glasbeek, Steven | Bird Opening | |
| May 17, 2025 | Kurt | 1–0 | Becx | Round 4: Kurt, Sascha - Becx, Cesar | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 17, 2025 | Becx | 1–0 | Winkels | Round 3: Becx, Cesar - Winkels, Marcel | Bird Opening | |
| May 17, 2025 | Beerdsen | 1–0 | Becx | Round 2: Beerdsen, Thomas - Becx, Cesar | Scotch Game: Scotch Gambit, Advance Variation | |
| May 16, 2025 | Becx | 1–0 | Bruggeman | Round 1: Becx, Cesar - Bruggeman, David | Bird Opening | |
| May 15, 2025 | Smits | ½–½ | Becx | KNSB Meesterklasse 2024-2025 | Vienna Game | |
| Dec 14, 2024 | Becx | 0–1 | Van Foreest | KNSB | Bird Opening: Dutch Variation | |
| Jul 22, 2024 | Roos | 1–0 | Becx | Round 5: Roos, David - Becx, Cesar | Ruy Lopez: Cozio Defense | |
| Jul 21, 2024 | Dauw | 1–0 | Becx | Round 3: Dauw, Sterre - Becx, Cesar | Ponziani Opening: Steinitz Variation | |
| Jun 23, 2024 | Becx | 0–1 | Gijsen | Round 6: Becx, Cesar - Gijsen, William | Bird Opening: Dutch Variation | |
| Jun 21, 2024 | Becx | 0–1 | Stefansson | Round 1: Becx, Cesar - Stefansson, Vignir Vatnar | Bird Opening: Dutch Variation | |
| Jun 2, 2024 | Becx | ½–½ | Kshirsagar | WLC Tournament 2024 A | Bird Opening: Dutch Variation | |
| Jun 2, 2024 | Baselmans | 1–0 | Becx | WLC Tournament 2024 A | Italian Game: Anti-Fried Liver Defense | |
| Jun 1, 2024 | Becx | ½–½ | Miltenburg | WLC Tournament 2024 A | Bird Opening: Dutch Variation | |
| Jun 1, 2024 | Becx | ½–½ | Bollen | WLC Tournament 2024 A | Bird Opening: Dutch Variation | |
| Jun 1, 2024 | Quintus | 0–1 | Becx | WLC Tournament 2024 A | Dutch Defense: Raphael Variation | |
| May 31, 2024 | Matthijssen | ½–½ | Becx | WLC Tournament 2024 A | ? | |
| May 28, 2023 | Becx | * | Campora Perez | Limburg Open | ? | |
| May 28, 2023 | Swijsen | * | Becx | Limburg Open | ? | |
| May 7, 2023 | Becx | ½–½ | Bhattacharjee | WLC Toernooi 2023 A | Bird Opening: Dutch Variation | |
| May 7, 2023 | Margarido | 1–0 | Becx | WLC Toernooi 2023 A | English Opening: Anglo-Dutch Defense | |
| May 6, 2023 | Becx | * | Bruggeman | WLC Toernooi 2023 A | ? | |
| May 6, 2023 | Van Rooij | * | Becx | WLC Toernooi 2023 A | ? | |
| May 5, 2023 | Becx | 0–1 | Beerdsen | WLC Toernooi 2023 A | Bird Opening: Dutch Variation | |
| — | Becx | 1–0 | Plasmans | WLC 2022 A | Bird Opening: From's Gambit | |
| — | Becx | 1–0 | Zepeda | WLC 2022 A | Bird Opening | |
| — | Becx | ½–½ | Iolis | WLC 2022 A | Bird Opening | |
| — | Baselmans | ½–½ | Becx | WLC 2022 A | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| — | Elgersma | 1–0 | Becx | WLC 2022 A | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| — | Ciornei | 0–1 | Becx | WLC 2022 A | Scotch Game: Mieses Variation | |
