| May 30, 2026 | Kraus | 1–0 | Seifert | ODJM A 2026 | King's Indian Attack | |
| May 29, 2026 | Seifert | 0–1 | Reichmann | ODJM A 2026 | Zukertort Opening | |
| May 28, 2026 | Schilling | 0–1 | Seifert | ODJM A 2026 | Scotch Game: Potter Variation | |
| May 27, 2026 | Seifert | 0–1 | Koehler | ODJM A 2026 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Retreat Line | |
| May 27, 2026 | Paeslack | ½–½ | Seifert | ODJM A 2026 | King's Indian Defense: Normal Variation, Rare Defenses | |
| May 26, 2026 | Berresheim | 0–1 | Seifert | ODJM A 2026 | Modern Defense: Beefeater Variation | |
| May 25, 2026 | Seifert | 0–1 | Brockhoff | ODJM A 2026 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| May 24, 2026 | Shanawaz Thabrez | ½–½ | Seifert | ODJM A 2026 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 24, 2026 | Seifert | ½–½ | Zobel | ODJM A 2026 | King's Indian Attack: Sicilian Variation | |
| Dec 19, 2025 | Seifert | 1–0 | Mende | Round 2: Seifert, Hendrik - Mende, Lukas | Sicilian Defense: Moscow Variation, Main Line | |
| Dec 19, 2025 | Lueersen | 0–1 | Seifert | Round 1: Lueersen, Lukas - Seifert, Hendrik | Queen's Gambit Declined: Janowski Variation | |
| Dec 12, 2025 | Seifert | 1–0 | Ziska | Round 4: Seifert, Hendrik - Ziska, Stephan | Sicilian Defense: O'Kelly Variation, Réti System | |
| Dec 12, 2025 | Alugili | 0–1 | Seifert | Round 3: Alugili, Yosef - Seifert, Hendrik | English Opening: Agincourt Defense | |
| Dec 12, 2025 | Doppalapudi | 0–1 | Seifert | Round 5: Doppalapudi, Vishal - Seifert, Hendrik | Queen's Gambit Declined: Janowski Variation | |
| Nov 23, 2025 | Seifert | ½–½ | Geldner | Round 9: Seifert, Hendrik - Geldner, Gerrit | Sicilian Defense: Old Sicilian | |
| Nov 23, 2025 | Sprungala | 0–1 | Seifert | Round 8: Sprungala, Erik - Seifert, Hendrik | Hungarian Opening: Catalan Formation | |
| Nov 23, 2025 | Seifert | 0–1 | Lauterbach | Round 7: Seifert, Hendrik - Lauterbach, Kolja | Bishop's Opening: Vienna Hybrid | |
| Nov 23, 2025 | Seifert | 1–0 | Wilk | Round 6: Seifert, Hendrik - Wilk, Clemens | Caro-Kann Defense: Two Knights Attack | |
| Nov 23, 2025 | Zahed | 0–1 | Seifert | Round 5: Zahed, Pezhman - Seifert, Hendrik | Scotch Game: Schmidt Variation | |
| Nov 23, 2025 | Seifert | 1–0 | Bleckmann | Round 4: Seifert, Hendrik - Bleckmann, Lena | Bishop's Opening: Vienna Hybrid | |
| Nov 23, 2025 | Duong | 0–1 | Seifert | Round 3: Duong, Michelle - Seifert, Hendrik | English Opening: King's English Variation, Reversed Closed Sicilian | |
| Nov 23, 2025 | Seifert | 0–1 | Broghammer | Round 2: Seifert, Hendrik - Broghammer, Luca Francesco | Bishop's Opening: Vienna Hybrid, Spielmann Attack | |
| Nov 23, 2025 | Krause | 1–0 | Seifert | Round 1: Krause, Benedict - Seifert, Hendrik | Scotch Game: Scotch Gambit, Advance Variation | |
| Nov 22, 2025 | Seifert | 1–0 | Kittler | Round 9: Seifert, Hendrik - Kittler, Paavo Luis | Vienna Game: Stanley Variation, Meitner-Mieses Gambit | |
| Nov 22, 2025 | Yalcinoez | 1–0 | Seifert | Round 8: Yalcinoez, Ahmet - Seifert, Hendrik | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Nov 22, 2025 | Seifert | ½–½ | Guen | Round 7: Seifert, Hendrik - Guen, Yusuf Alptigin | Sicilian Defense: Old Sicilian | |
| Nov 22, 2025 | Browning | 1–0 | Seifert | Round 6: Browning, Rebecca - Seifert, Hendrik | Scotch Game: Schmidt Variation | |
| Nov 22, 2025 | Seifert | 1–0 | Roessler | Round 5: Seifert, Hendrik - Roessler, Jeremy Jason | Bishop's Opening: Vienna Hybrid | |
| Nov 22, 2025 | Sohr | 1–0 | Seifert | Round 4: Sohr, Jim - Seifert, Hendrik | Zukertort Opening | |
| Nov 22, 2025 | Seifert | 1–0 | Suraj Sahu | Round 3: Seifert, Hendrik - Suraj Sahu | Sicilian Defense: Old Sicilian | |
| Nov 22, 2025 | Sprungala | 1–0 | Seifert | Round 2: Sprungala, Erik - Seifert, Hendrik | Queen's Gambit Declined | |
| Nov 22, 2025 | Seifert | 1–0 | Trunce | Round 1: Seifert, Hendrik - Trunce, Eimantas | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Retreat Line | |
| Oct 16, 2025 | Seifert | 0–1 | Georg | Runde 7: Seifert, Hendrik - Georg, Felix | Pirc Defense | |
| Oct 15, 2025 | Althoff | ½–½ | Seifert | Runde 6: Althoff, Ralph - Seifert, Hendrik | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Oct 14, 2025 | Seifert | 0–1 | Sunko | Runde 5: Seifert, Hendrik - Sunko, Sviatoslav | French Defense: Schlechter Variation | |
| Oct 13, 2025 | Schroeder | ½–½ | Seifert | Runde 4: Schroeder, Lennart - Seifert, Hendrik | Queen's Gambit Declined | |
| Jun 14, 2025 | Seifert | 0–1 | Abou Wally | ODJM A 2025 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation | |
| Jun 13, 2025 | Heilig | 0–1 | Seifert | ODJM A 2025 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 12, 2025 | Meyer | ½–½ | Seifert | ODJM A 2025 | Queen's Gambit Declined: Janowski Variation | |
| Jun 11, 2025 | Seifert | ½–½ | Juergenpott | ODJM A 2025 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation | |
| Jun 11, 2025 | Direk | 1–0 | Seifert | ODJM A 2025 | Rapport-Jobava System | |
| Jun 10, 2025 | Seifert | 0–1 | Uhlmann | ODJM A 2025 | Sicilian Defense | |
| Jun 9, 2025 | Arne | ½–½ | Seifert | ODJM A 2025 | Queen's Pawn Game: Zukertort Variation | |
| Jun 8, 2025 | Seifert | 0–1 | Heimann | ODJM A 2025 | Sicilian Defense | |
| Jun 8, 2025 | Schulz | ½–½ | Seifert | ODJM A 2025 | Nimzo-Larsen Attack: Classical Variation | |
| May 25, 2024 | Farokhi | ½–½ | Seifert | ODJM B 2024 | French Defense: Advance Variation, Main Line | |
| May 24, 2024 | Seifert | 0–1 | Kelembet | ODJM B 2024 | French Defense: Schlechter Variation | |
| May 23, 2024 | Menke | ½–½ | Seifert | ODJM B 2024 | Four Knights Game: Scotch Variation Accepted | |
| May 22, 2024 | Seifert | 1–0 | Sniegowski | ODJM B 2024 | Bishop's Opening: Vienna Hybrid | |
| May 22, 2024 | Kelembet | * | Seifert | ODJM B 2024 | Queen's Pawn Game: Zukertort Variation | |
| May 21, 2024 | Seifert | 0–1 | Schedel | ODJM B 2024 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| May 20, 2024 | Hendler | 0–1 | Seifert | ODJM B 2024 | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| May 19, 2024 | Seifert | 1–0 | Lieb | ODJM B 2024 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| May 19, 2024 | Fettig | 0–1 | Seifert | ODJM B 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |