| Oct 5, 2025 | Koop | 1–0 | Bartels | Round 5: Koop, Michael - Bartels, Leonard | Bird Opening: Sturm Gambit | |
| Oct 4, 2025 | Bartels | 1–0 | Bauta | Round 4: Bartels, Leonard - Bauta, Luan | Queen's Gambit Accepted: Old Variation | |
| Oct 4, 2025 | Polster | 0–1 | Bartels | Round 3: Polster, Maike - Bartels, Leonard | Sicilian Defense: Staunton-Cochrane Variation | |
| Oct 3, 2025 | Bartels | 0–1 | Krause | Round 2: Bartels, Leonard - Krause, Ortwin, Dr. | Queen's Gambit Declined: Albin Countergambit, Normal Line | |
| Oct 3, 2025 | Eichmann | 0–1 | Bartels | Round 1: Eichmann, Andreas - Bartels, Leonard | Polish Opening | |
| Jun 1, 2025 | Myburgh | 0–1 | Bartels | Round 7: Myburgh, Christopher John - Bartels, Leonard | Sicilian Defense: Modern Variations | |
| May 31, 2025 | Bartels | 0–1 | Veelders | Round 6: Bartels, Leonard - Veelders, Sarah | Queen's Gambit Declined: Albin Countergambit, Normal Line | |
| May 31, 2025 | Schartl | 1–0 | Bartels | Round 5: Schartl, Kai Giso - Bartels, Leonard | Sicilian Defense: McDonnell Attack | |
| May 30, 2025 | Bartels | ½–½ | Mis | Round 4: Bartels, Leonard - Mis, Filipp | Grünfeld Defense: Stockholm Variation | |
| May 30, 2025 | Khazen | 0–1 | Bartels | Round 3: Khazen, Noah - Bartels, Leonard | Sicilian Defense: Najdorf Variation, Adams Attack | |
| May 29, 2025 | Bartels | 0–1 | Vorsilka | Round 2: Bartels, Leonard - Vorsilka, Jiri | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 29, 2025 | Rose | 1–0 | Bartels | Round 1: Rose, Simeon - Bartels, Leonard | Sicilian Defense: Alapin Variation, Barmen Defense | |
