| May 17, 2026 | Bosselmann | 1–0 | Schartl | Runde 7: Bosselmann, Juergen - Schartl, Kai Giso | Caro-Kann Defense: Accelerated Panov Attack | |
| May 16, 2026 | Schartl | 0–1 | Kastens | Runde 6: Schartl, Kai Giso - Kastens, Uwe | King's Indian Attack | |
| May 16, 2026 | Moritz | 1–0 | Schartl | Runde 5: Moritz, Matthias - Schartl, Kai Giso | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| May 15, 2026 | Schartl | 1–0 | Viere | Runde 4: Schartl, Kai Giso - Viere, Samuel | King's Knight Opening: Konstantinopolsky | |
| May 15, 2026 | Schimmer | 1–0 | Schartl | Runde 3: Schimmer, Jens - Schartl, Kai Giso | Dutch Defense: Queen's Knight Variation | |
| May 14, 2026 | Schartl | 0–1 | Solar | Runde 2: Schartl, Kai Giso - Solar, Mavi | Zukertort Opening: Queen's Gambit Invitation | |
| May 14, 2026 | Meschke | 1–0 | Schartl | Round 1: Meschke, Oliver - Schartl, Kai Giso | Van Geet Opening | |
| Jun 1, 2025 | Schartl | 0–1 | Dohmeyer | Round 7: Schartl, Kai Giso - Dohmeyer, Joern | Caro-Kann Defense: Panov Attack, Modern Defense, Mieses Line | |
| May 31, 2025 | Walloschek | 1–0 | Schartl | Round 6: Walloschek, Christian - Schartl, Kai Giso | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| May 31, 2025 | Schartl | 1–0 | Bartels | Round 5: Schartl, Kai Giso - Bartels, Leonard | Sicilian Defense: McDonnell Attack | |
| May 30, 2025 | Meschke | 1–0 | Schartl | Round 4: Meschke, Oliver - Schartl, Kai Giso | Van Geet Opening | |
| May 30, 2025 | Schartl | 1–0 | Stolzenwald | Round 3: Schartl, Kai Giso - Stolzenwald, Frank | Rat Defense: Small Center Defense | |
| May 29, 2025 | Greiner | ½–½ | Schartl | Round 2: Greiner, Andre - Schartl, Kai Giso | Caro-Kann Defense | |
| May 29, 2025 | Schartl | 0–1 | Porth | Round 1: Schartl, Kai Giso - Porth, Hartmut | Nimzowitsch Defense: French Connection | |
| May 12, 2024 | Schartl | 0–1 | Magezi | 3. Itzehoer Schach Open (37-58) | Modern Defense: Mongredien Defense, with Nf3 | |
| May 11, 2024 | Nautsch | 0–1 | Schartl | 3. Itzehoer Schach Open (37-58) | English Opening: King's English Variation | |
| May 11, 2024 | Schartl | 1–0 | Spielfrei | 3. Itzehoer Schach Open (37-58) | ? | |
| May 10, 2024 | Engelberg | 1–0 | Schartl | 3. Itzehoer Schach Open (37-58) | Caro-Kann Defense: Exchange Variation | |
| May 10, 2024 | Schartl | 0–1 | Kofert | 3. Itzehoer Schach Open (37-58) | Scandinavian Defense: Main Line, Leonhardt Gambit | |
| May 9, 2024 | Khattar | 1–0 | Schartl | 3. Itzehoer Schach Open (37-58) | Caro-Kann Defense: Exchange Variation | |
| May 9, 2024 | Schartl | 0–1 | Wartenberg | 3. Itzehoer Schach Open (37-58) | Sicilian Defense: Alapin Variation | |
