| May 17, 2026 | Boudry | 1–0 | Haarh | Fredericia Chess 2026 IM | Zukertort Opening: Reversed Grünfeld | |
| May 17, 2026 | Kopylov | 1–0 | Boudry | Fredericia Chess 2026 IM | Queen's Gambit Declined: Albin Countergambit | |
| May 16, 2026 | Maerevoet | 1–0 | Boudry | Fredericia Chess 2026 IM | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Rare Line | |
| May 16, 2026 | Boudry | 1–0 | Nilssen | Fredericia Chess 2026 IM | French Defense: King's Indian Attack | |
| May 15, 2026 | Kistrup | ½–½ | Boudry | Fredericia Chess 2026 IM | Queen's Pawn Game: Krause Variation | |
| May 15, 2026 | Boudry | ½–½ | Holinka | Fredericia Chess 2026 IM | Sicilian Defense: Najdorf Variation | |
| May 14, 2026 | Easwaralingam | ½–½ | Boudry | Fredericia Chess 2026 | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| May 14, 2026 | Boudry | 1–0 | Hald Falkesgaard | Fredericia Chess 2026 | English Opening: Agincourt Defense | |
| May 13, 2026 | Loftgaard | 0–1 | Boudry | Fredericia Chess 2026 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Feb 7, 2026 | Boudry | 1–0 | Player 2 | Round 7: Boudry, William - Player 2 | Polish Opening | |
| Oct 4, 2025 | Vistisen | 0–1 | Boudry | Round 2: Vistisen, Lars - Boudry, William | French Defense: Advance Variation, Euwe Variation | |
| Jun 22, 2025 | Ledger | 1–0 | Boudry | 37th International Chess Tournament Open Pula 2025 | King's Indian Defense: Orthodox Variation | |
| Jun 20, 2025 | Popovic | 1–0 | Boudry | 37th International Chess Tournament Open Pula 2025 | Sicilian Defense: Modern Variations | |
| Jun 19, 2025 | Boudry | ½–½ | Cvek | 37th International Chess Tournament Open Pula 2025 | Zukertort Opening | |
| Jun 18, 2025 | Omorjan | ½–½ | Boudry | 37th International Chess Tournament Open Pula 2025 | King's Indian Defense: Semi-Averbakh System | |
| Jun 18, 2025 | Boudry | 1–0 | Ernst | 37th International Chess Tournament Open Pula 2025 | King's Indian Attack: Sicilian Variation | |
| Jun 9, 2025 | Kurt | ½–½ | Boudry | Round 6: Kurt, Sascha - Boudry, William | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| Jul 24, 2024 | Boudry | 1–0 | Liefrink | Round 9: Boudry, William - Liefrink, Feike | Scotch Game: Schmidt Variation | |
| Jul 21, 2024 | Pirard | 1–0 | Boudry | Round 4: Pirard, Natan - Boudry, William | French Defense: Chigorin Variation | |
| Nov 9, 2024 | Sirosh | ½–½ | Boudry | Round 3: Sirosh, Ilja - Boudry, William | King's Indian Defense: Orthodox Variation, Positional Defense | |
| May 28, 2023 | Boudry | * | Goossens | Limburg Open | ? | |
| May 28, 2023 | Kampman | * | Boudry | Limburg Open | ? | |
