| Apr 11, 2026 | IJzermans | 0–1 | Hilwerda | Round 9: IJzermans, Gijs - Hilwerda, Jonas | English Opening: Anglo-Indian Defense | |
| Oct 4, 2025 | Grooten | ½–½ | Hilwerda | Round 2: Grooten, Herman - Hilwerda, Jonas | King's Indian Defense: Orthodox Variation, Aronin-Taimanov Defense | |
| May 13, 2025 | Mainka | 0–1 | Hilwerda | KNSB Meesterklasse 2024-2025 | Sicilian Defense: Lasker-Pelikan Variation | |
| Mar 8, 2025 | Hilwerda | ½–½ | Jens | Round 7: Hilwerda, Jonas - Jens, Jelmer | Sicilian Defense: Classical Variation, Anti-Sozin Variation | |
| Dec 14, 2024 | Hilwerda | ½–½ | Beukema | KNSB? | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Nov 23, 2024 | Vantorre | 1–0 | Hilwerda | KNSB Competitie, ronde 4 | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Sep 21, 2024 | Los | ½–½ | Hilwerda | KNSB Meesterklasse 2024-2025 | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Bc5 | |
| Jul 29, 2024 | Shakhverdian | ½–½ | Hilwerda | Round 6: Shakhverdian, William - Hilwerda, Jonas | Dutch Defense: Classical Variation | |
| Jul 27, 2024 | Hilwerda | 1–0 | Bus | Round 5: Hilwerda, Jonas - Bus, Tom | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations | |
| Jul 26, 2024 | Saketh | ½–½ | Hilwerda | Round 4: Saketh, Pedagandham - Hilwerda, Jonas | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 24, 2024 | Goudriaan | 0–1 | Hilwerda | Round 2: Goudriaan, Rafael - Hilwerda, Jonas | Queen's Gambit Declined: Exchange Variation | |
| Jul 23, 2024 | Hilwerda | ½–½ | Wink | Round 1: Hilwerda, Jonas - Wink, Luka | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Nov 9, 2024 | Hilwerda | ½–½ | Hommerson | Round 3: Hilwerda, Jonas - Hommerson, Paul | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Aug 1, 2024 | Aarav Sarbalia | ½–½ | Hilwerda | Round 9: Aarav Sarbalia - Hilwerda, Jonas | Sicilian Defense: Richter-Rauzer Variation, Modern Variation | |
| Jul 31, 2024 | Hilwerda | 0–1 | Hausrath | Round 8: Hilwerda, Jonas - Hausrath, Daniel | Caro-Kann Defense: Advance Variation, Short Variation | |
| Jul 30, 2024 | Hilwerda | 1–0 | Kazarjan | Round 7: Hilwerda, Jonas - Kazarjan, Gachatur | Sicilian Defense: Dragon Variation | |
| Aug 28, 2022 | Johansson | 0–1 | Hilwerda | We celebrate our 86th anniversary, and 51 years with the same venue. | Indian Defense: Przepiorka Variation | |
| Aug 27, 2022 | Hilwerda | 1–0 | Vesterli | We celebrate our 86th anniversary, and 51 years with the same venue. | Sicilian Defense: Closed, Anti-Sveshnikov Variation, with Nf6 | |
| Aug 25, 2022 | Rostgaard | 1–0 | Hilwerda | We celebrate our 86th anniversary, and 51 years with the same venue. | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Aug 25, 2022 | Jacobsen | 1–0 | Hilwerda | We celebrate our 86th anniversary, and 51 years with the same venue. | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Aug 24, 2022 | Hilwerda | 0–1 | L�ftgaard | We celebrate our 86th anniversary, and 51 years with the same venue. | Sicilian Defense: Four Knights Variation | |
| Aug 23, 2022 | Hilwerda | 1–0 | Hector | We celebrate our 86th anniversary, and 51 years with the same venue. | Scotch Game: Mieses Variation | |
| Aug 23, 2022 | Hilwerda | 0–1 | Korley | We celebrate our 86th anniversary, and 51 years with the same venue. | Petrov's Defense: Modern Attack, Center Variation | |
| Aug 23, 2022 | Hamitevici | ½–½ | Hilwerda | We celebrate our 86th anniversary, and 51 years with the same venue. | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| Aug 16, 2021 | Hilwerda | 1–0 | Boci | World Youth Cup 2021 O18-G10 - Open 18 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Aug 16, 2021 | Hilwerda | 1–0 | Mutuna | World Youth Cup 2021 O18-G10 - Open 18 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Aug 16, 2021 | Hilwerda | 0–1 | Alexakis | World Youth Cup 2021 O18-G10 - Open 18 | Sicilian Defense: Classical Variation, Sozin Attack | |
| Aug 16, 2021 | Hilwerda | 0–1 | Shrivatri | World Youth Cup 2021 O18-G10 - Open 18 | Scotch Game: Mieses Variation | |
| Aug 16, 2021 | Hilwerda | 0–1 | Mohan | World Youth Cup 2021 O18-G10 - Open 18 | Scotch Game: Mieses Variation | |
| Aug 16, 2021 | Cooke | 0–1 | Hilwerda | World Youth Cup 2021 O18-G10 - Open 18 | King's Indian Defense: Smyslov Variation | |
| Aug 16, 2021 | Thilakarathne | 1–0 | Hilwerda | World Youth Cup 2021 O18-G10 - Open 18 | King's Indian Attack: Symmetrical Defense | |
| Aug 16, 2021 | Tzidkiya | ½–½ | Hilwerda | World Youth Cup 2021 O18-G10 - Open 18 | Sicilian Defense: Old Sicilian | |
| Aug 16, 2021 | Kanyamarala | 0–1 | Hilwerda | World Youth Cup 2021 O18-G10 - Open 18 | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Aug 16, 2021 | Mohammad Fahad | 0–1 | Hilwerda | World Youth Cup 2021 O18-G10 - Open 18 | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
