| Nov 2, 2025 | Beeck | ½–½ | Porth | Round 7: Beeck, Mats - Porth, Hartmut | Philidor Defense: Exchange Variation | |
| Nov 1, 2025 | Porth | ½–½ | Tran | Round 4: Porth, Hartmut - Tran, Duc Cuong | Sicilian Defense | |
| Oct 31, 2025 | Koniahli | 1–0 | Porth | Round 3: Koniahli, Malek - Porth, Hartmut | Philidor Defense: Exchange Variation | |
| Oct 5, 2025 | Porth | ½–½ | Henke | Round 5: Porth, Hartmut - Henke, Jaron | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Oct 4, 2025 | Menke | 0–1 | Porth | Round 4: Menke, Raphael Wilhelm - Porth, Hartmut | King's Pawn Game: Maróczy Defense | |
| Oct 4, 2025 | Porth | ½–½ | Lanert | Round 3: Porth, Hartmut - Lanert, Theodor | Sicilian Defense | |
| Oct 3, 2025 | Khachatryan | 1–0 | Porth | Round 2: Khachatryan, Taron - Porth, Hartmut | Pirc Defense: Classical Variation | |
| Oct 3, 2025 | Porth | 1–0 | Oblender | Round 1: Porth, Hartmut - Oblender, Rudi | Modern Defense | |
| Jul 13, 2025 | Bogomolow | 1–0 | Porth | Round 7: Bogomolow, Sergej - Porth, Hartmut | Nimzowitsch Defense: Williams Variation | |
| Jul 12, 2025 | Porth | ½–½ | Hehn | Round 6: Porth, Hartmut - Hehn, Hartmut | Rat Defense: Harmonist | |
| Jul 12, 2025 | Porth | 1–0 | Petersen | Round 5: Porth, Hartmut - Petersen, Malte | Ruy Lopez: Exchange Variation | |
| Jul 11, 2025 | Marzik | 0–1 | Porth | Round 4: Marzik, Arne - Porth, Hartmut | Queen's Pawn Game: Chigorin Variation | |
| Jul 11, 2025 | Porth | 1–0 | Becker | Round 3: Porth, Hartmut - Becker, Joerg | Sicilian Defense | |
| Jul 10, 2025 | Rabe | ½–½ | Porth | Round 2: Rabe, Fabian - Porth, Hartmut | Van Geet Opening | |
| Jul 10, 2025 | Porth | 0–1 | Tanukusuma | Round 1: Porth, Hartmut - Tanukusuma, Kyllian Gotthold | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Jun 1, 2025 | Porth | 1–0 | Rockmann | Round 7: Porth, Hartmut - Rockmann, Enno | French Defense: Réti-Spielmann Attack | |
| May 31, 2025 | Holinka | 1–0 | Porth | Round 6: Holinka, Henning - Porth, Hartmut | Nimzowitsch Defense: Williams Variation | |
| May 31, 2025 | Koniahli | 1–0 | Porth | Round 5: Koniahli, Malek - Porth, Hartmut | Nimzowitsch Defense: Williams Variation | |
| May 30, 2025 | Porth | 1–0 | Keyser | Round 4: Porth, Hartmut - Keyser, Robin | French Defense: Réti-Spielmann Attack | |
| May 30, 2025 | Al Amin | 0–1 | Porth | Round 3: Al Amin, Sami - Porth, Hartmut | Montevideo Defense | |
| May 29, 2025 | Porth | 1–0 | Lieb | Round 2: Porth, Hartmut - Lieb, Max | Sicilian Defense | |
| May 29, 2025 | Schartl | 0–1 | Porth | Round 1: Schartl, Kai Giso - Porth, Hartmut | Nimzowitsch Defense: French Connection | |
| Nov 3, 2024 | Porth | 1–0 | Stoy | Round 7: Porth, Hartmut - Stoy, Ulf | Modern Defense | |
| Nov 2, 2024 | Braun | 1–0 | Porth | Round 5: Braun, Julian - Porth, Hartmut | Nimzowitsch Defense: Williams Variation | |
| Nov 2, 2024 | Wecke | ½–½ | Porth | Round 6: Wecke, Thoralf - Porth, Hartmut | Dutch Defense: Semi-Leningrad Variation | |
| Nov 1, 2024 | Porth | 1–0 | Lehmann | Round 4: Porth, Hartmut - Lehmann, Edwin | Scandinavian Defense: Main Line, Mieses Variation | |
| Nov 1, 2024 | Jamal | 1–0 | Porth | Round 3: Jamal, Mahmoon - Porth, Hartmut | Nimzowitsch Defense: Scandinavian Variation, Advance Variation | |
| Oct 31, 2024 | Porth | 0–1 | Hansch | Round 2: Porth, Hartmut - Hansch, Karsten | Sicilian Defense | |
| Jul 22, 2022 | Porth | * | Winkler | open | ? | |
| Jul 21, 2022 | Henss | * | Porth | open | ? | |
| Jul 19, 2022 | Pericic | * | Porth | open | ? | |
| Jul 16, 2022 | Porth | * | Sanikidize | open | Pirc Defense | |
