| May 17, 2026 | Heinrich | 1–0 | Wander | Runde 7: Heinrich, Sebastian - Wander, Nikita | Rapport-Jobava System | |
| May 16, 2026 | Junge | ½–½ | Heinrich | Runde 6: Junge, Julia Marie - Heinrich, Sebastian | English Opening: Carls-Bremen System | |
| May 16, 2026 | Heinrich | 1–0 | Gemen | Runde 5: Heinrich, Sebastian - Gemen, Simon | Queen's Pawn Game: Accelerated London System | |
| May 15, 2026 | Heimbrodt | 1–0 | Heinrich | Runde 4: Heimbrodt, Birk - Heinrich, Sebastian | Caro-Kann Defense: Maróczy Variation | |
| May 15, 2026 | Heinrich | 0–1 | Edel | Runde 3: Heinrich, Sebastian - Edel, Thomas | Rapport-Jobava System | |
| May 14, 2026 | Meyer | 0–1 | Heinrich | Runde 2: Meyer, Christoph - Heinrich, Sebastian | Neo-Grünfeld Defense: Ultra-Delayed Exchange Variation | |
| May 14, 2026 | Heinrich | ½–½ | Viere | Round 1: Heinrich, Sebastian - Viere, Tim | Rapport-Jobava System | |
| Jun 1, 2025 | Heinrich | 1–0 | Charchulla | Round 7: Heinrich, Sebastian - Charchulla, Moritz | Rapport-Jobava System | |
| May 31, 2025 | Pritzlaff | 0–1 | Heinrich | Round 6: Pritzlaff, Tim - Heinrich, Sebastian | Rapport-Jobava System | |
| May 31, 2025 | Heinrich | 0–1 | Stotyn | Round 5: Heinrich, Sebastian - Stotyn, Fabian | Queen's Gambit Declined: Harrwitz Attack | |
| May 30, 2025 | Heinrich | 1–0 | Tanukusuma | Round 4: Heinrich, Sebastian - Tanukusuma, Kyllian Gotthold | Rapport-Jobava System | |
| May 30, 2025 | Mis | 0–1 | Heinrich | Round 3: Mis, Filipp - Heinrich, Sebastian | Nimzo-Indian Defense: St. Petersburg Variation | |
| May 29, 2025 | Hieke | 0–1 | Heinrich | Round 1: Hieke, Andrea - Heinrich, Sebastian | Sicilian Defense | |
| May 24, 2025 | Heinrich | 0–1 | Carlstedt | Round 2: Heinrich, Sebastian - Carlstedt, Jonathan | Modern Defense: Two Knights Variation | |
| May 12, 2024 | Heinrich | 1–0 | Moysich | 3. Itzehoer Schach Open | Old Indian Defense: Normal Variation | |
| May 11, 2024 | Gretzinger | 0–1 | Heinrich | 3. Itzehoer Schach Open | Nimzo-Indian Defense: Sämisch Variation | |
| May 11, 2024 | Heinrich | 1–0 | Braren | 3. Itzehoer Schach Open | Rapport-Jobava System | |
| May 10, 2024 | Stegert | 1–0 | Heinrich | 3. Itzehoer Schach Open | Sicilian Defense: Alapin Variation, Barmen Defense, Central Exchange | |
| May 10, 2024 | Heinrich | 1–0 | Allmendinger | 3. Itzehoer Schach Open | Queen's Pawn Game: Accelerated London System | |
| May 9, 2024 | Holinka | 1–0 | Heinrich | 3. Itzehoer Schach Open | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| May 9, 2024 | Heinrich | 1–0 | Kofert | 3. Itzehoer Schach Open | Indian Defense | |