| Jun 18, 2026 | Pitschka | ½–½ | Filipovic | 38th International Chess Tournament Open Pula 2026 | Pseudo Queen's Indian Defense | |
| Jun 14, 2026 | Pitschka | 0–1 | Bogdanov | 38th International Chess Tournament Open Pula 2026 | Rapport-Jobava System | |
| May 31, 2026 | Saar | ½–½ | Pitschka | 45. Zalakaros | Caro-Kann Defense: Classical Variation, Lobron System | |
| May 30, 2026 | Pitschka | 1–0 | Horak | 45. Zalakaros | Queen's Pawn Game: Symmetrical Variation | |
| May 29, 2026 | Lazarne Vajda | 1–0 | Pitschka | 45. Zalakaros | King's Indian Attack | |
| May 28, 2026 | Pitschka | ½–½ | Tompa | 45. Zalakaros | Rapport-Jobava System | |
| May 28, 2026 | Pitschka | * | Tompa | 45. Zalakarosi Sakkfesztivál – Bárczay László emlékverseny | ? | |
| May 26, 2026 | Pitschka | 0–1 | Lishoy Gengis Paratazham | 45. Zalakaros | Queen's Pawn Game: Symmetrical Variation | |
| May 23, 2026 | Aczel | 1–0 | Pitschka | 45. Zalakaros | Slav Defense: Quiet Variation, Schallopp Defense | |
| Feb 5, 2026 | Carbone | 1–0 | Pitschka | Round 7: Carbone, Diego - Pitschka, Claus | Slav Defense: Czech Variation, Carlsbad Variation, Morozevich Variation | |
| Feb 4, 2026 | Pitschka | 0–1 | Vazquez | Round 6: Pitschka, Claus - Vazquez, Facundo | Rapport-Jobava System | |
| Feb 3, 2026 | Sanhueza | 0–1 | Pitschka | Round 5: Sanhueza, Cristian - Pitschka, Claus | Caro-Kann Defense: Exchange Variation | |
| Feb 2, 2026 | Pitschka | 1–0 | Ocampos | Round 4: Pitschka, Claus - Ocampos, Ian | Rapport-Jobava System | |
| Feb 1, 2026 | Villca | 1–0 | Pitschka | Round 3: Villca, Julian - Pitschka, Claus | Philidor Defense | |
| Jan 31, 2026 | Pitschka | 1–0 | Rodi | Round 2: Pitschka, Claus - Rodi, Luis Ernesto | French Defense: Tarrasch Variation, Morozevich Variation | |
| Dec 21, 2025 | Pitschka | ½–½ | Haji | Round 5: Pitschka, Claus - Haji, Mohammad | Queen's Pawn Game: Symmetrical Variation | |
| Dec 20, 2025 | Bauer | ½–½ | Pitschka | Round 4: Bauer, Laura Sophie - Pitschka, Claus | Caro-Kann Defense: Classical Variation | |
| Dec 19, 2025 | Nopper | ½–½ | Pitschka | Round 2: Nopper, Louis - Pitschka, Claus | Slav Defense: Alekhine Variation | |
| Dec 19, 2025 | Pitschka | 1–0 | Masius | Round 1: Pitschka, Claus - Masius, Patrick, Dr. | Indian Defense: London System | |
| Jul 2, 2025 | Pitschka | 0–1 | Ristovich | South African Chess Open | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jul 1, 2025 | Nevin | ½–½ | Pitschka | South African Chess Open | Slav Defense | |
| Jun 29, 2025 | Chigozi | 1–0 | Pitschka | South African Chess Open | Slav Defense: Exchange Variation, Symmetrical Line | |
| Jun 28, 2025 | Pitschka | 0–1 | Oatlhotse | South African Chess Open | Indian Defense | |
| Jun 28, 2025 | Li | * | Pitschka | South African Chess Open | Slav Defense: Czech Variation, Carlsbad Variation | |
| Jun 28, 2025 | Pitschka | 1–0 | Potgieter | South African Chess Open | Queen's Pawn Game: Symmetrical Variation | |
| Jun 27, 2025 | Pitschka | * | Potgieter | South African Chess Open | ? | |
| Jun 1, 2025 | Varadi | 1–0 | Pitschka | Zalakaros2025 | Caro-Kann Defense: Advance Variation, Short Variation | |
| May 31, 2025 | Pitschka | ½–½ | Karacsonyi | Zalakaros2025 | Queen's Pawn Game: Barry Attack | |
| May 21, 2025 | Pitschka | 0–1 | Aczel | Zalakaros2025 | Queen's Pawn Game: Symmetrical Variation | |
| Nov 25, 2024 | Pitschka | ½–½ | Paschall | World Senior Chess Championship 2024 | Rapport-Jobava System | |
| Nov 17, 2024 | Krasenkow | 1–0 | Pitschka | World Senior Chess Championship 2024 | Caro-Kann Defense: Classical Variation, Spassky Variation | |
| Oct 19, 2024 | Pitschka | 1–0 | Marcziter | Round 9: Pitschka, Claus - Marcziter, Dmitrii | Rapport-Jobava System | |
| Oct 18, 2024 | Feldmann | ½–½ | Pitschka | Round 8: Feldmann, Johannes - Pitschka, Claus | English Opening: Caro-Kann Defensive System | |
| Oct 17, 2024 | Pitschka | ½–½ | Winkler | Round 7: Pitschka, Claus - Winkler, Yonathan | Queen's Gambit Accepted: Old Variation | |
| Oct 16, 2024 | Weidemann | ½–½ | Pitschka | Round 6: Weidemann, Jakob - Pitschka, Claus | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Oct 15, 2024 | Pitschka | 1–0 | Lamers | Round 5: Pitschka, Claus - Lamers, Ludwig | Indian Defense | |
| Oct 14, 2024 | Hofmann | 0–1 | Pitschka | Round 4: Hofmann, Benjamin - Pitschka, Claus | Queen's Pawn Game: Symmetrical Variation | |
| Oct 13, 2024 | Pitschka | 1–0 | Horstmann | Round 3: Pitschka, Claus - Horstmann, Michael | Rapport-Jobava System | |
| Oct 13, 2024 | Korchynskyi | 1–0 | Pitschka | Round 2: Korchynskyi, Mykola - Pitschka, Claus | Slav Defense: Exchange Variation, Symmetrical Line | |
| Oct 12, 2024 | Pitschka | 1–0 | Wenning | Round 1: Pitschka, Claus - Wenning, Niels | Queen's Pawn Game: Accelerated London System | |
| Jul 19, 2024 | Bratovic | 1–0 | Pitschka | CZECH OPEN 2024 - A - PARDUBICE OPEN | Réti Opening | |