| Jul 4, 2026 | Mueller | 0–1 | Schaefer | Round 9: Mueller, Michael - Schaefer, Martin, Dr. | Dutch Defense | |
| Jul 3, 2026 | Schaefer | 1–0 | Rahner | Round 8: Schaefer, Martin, Dr. - Rahner, Fritz | Queen's Gambit Accepted: Central Variation, McDonnell Defense | |
| Jul 2, 2026 | Namyslo | 1–0 | Schaefer | Round 7: Namyslo, Holger - Schaefer, Martin, Dr. | Sicilian Defense: French Variation, Normal | |
| Jul 1, 2026 | Schaefer | ½–½ | Schober | Round 6: Schaefer, Martin, Dr. - Schober, Ralf | French Defense: Normal Variation | |
| Jun 30, 2026 | Vogel | ½–½ | Schaefer | Round 5: Vogel, Robert - Schaefer, Martin, Dr. | English Opening: King's English Variation, Two Knights Variation, Smyslov System | |
| Jun 29, 2026 | Schaefer | 1–0 | Rauscher | Round 4: Schaefer, Martin, Dr. - Rauscher, Joachim | Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense | |
| Jun 28, 2026 | Schroeder | * | Schaefer | Round 3: Schroeder, Klaus - Schaefer, Martin, Dr. | ? | |
| Jun 27, 2026 | Schaefer | 0–1 | Klundt | Round 2: Schaefer, Martin, Dr. - Klundt, Klaus | Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense | |
| Jun 26, 2026 | Mayer | * | Schaefer | Round 1: Mayer, Rolf - Schaefer, Martin, Dr. | ? | |
| Aug 29, 2024 | Skorna | 1–0 | Schaefer | Round 7: Skorna, Ullrich - Schaefer, Martin, Dr. | Sicilian Defense: Snyder Variation | |
| Aug 26, 2024 | Schaefer | 0–1 | Babrikowski | Round 4: Schaefer, Martin, Dr. - Babrikowski, Peter, Dr. | Catalan Opening: Closed | |
| Aug 24, 2024 | Schaefer | 0–1 | Namyslo | Round 2: Schaefer, Martin, Dr. - Namyslo, Holger | Queen's Gambit Accepted: Central Variation, Greco Variation | |
| — | Schaefer | 1–0 | Heck | Round 2: Schaefer, Martin, Dr. - Heck, Norbert | Modern Defense: Pseudo-Austrian Attack | |
| — | Schaefer | 0–1 | Hassenrueck | Round 3: Schaefer, Martin, Dr. - Hassenrueck, Helmut | Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line | |
| — | Schaefer | ½–½ | Rooze | Round 5: Schaefer, Martin, Dr. - Rooze, Jan | Catalan Opening | |
| — | Schaefer | ½–½ | Broemel | Round 7: Schaefer, Martin, Dr. - Broemel, Richard | Queen's Gambit Declined | |
| — | Schaefer | ½–½ | Kristensen | Round 9: Schaefer, Martin, Dr. - Kristensen, Leif | Benko Gambit Accepted: Modern Variation | |
| — | Warnk | 0–1 | Schaefer | Round 4: Warnk, Torsten - Schaefer, Martin, Dr. | Dutch Defense: Leningrad Variation, Warsaw Variation | |
| — | Okrajek | ½–½ | Schaefer | Round 6: Okrajek, Alexander - Schaefer, Martin, Dr. | Zukertort Opening: Dutch Variation | |
| — | Boidman | 0–1 | Schaefer | Round 8: Boidman, Yuri - Schaefer, Martin, Dr. | Sicilian Defense: French Variation | |