| Oct 22, 2025 | Sakalauskas | 0–1 | Gengler | Round 4: Sakalauskas, Vaidas - Gengler, Pierre | Nimzo-Indian Defense | |
| Oct 25, 2024 | Hickl | 1–0 | Gengler | 39th European Chess Club Cup | Zukertort Opening: Kingside Fianchetto | |
| Oct 24, 2024 | Gengler | 0–1 | Voege | 39th European Chess Club Cup | Hungarian Opening | |
| Oct 23, 2024 | Verstraete | 0–1 | Gengler | 39th European Chess Club Cup | Sicilian Defense: Closed | |
| Oct 22, 2024 | Bergan | 0–1 | Gengler | 39th European Chess Club Cup | Sicilian Defense: Delayed Alapin Variation | |
| Oct 21, 2024 | Gengler | 0–1 | Mihasi | 39th European Chess Club Cup | Hungarian Opening: Symmetrical Variation | |
| Oct 20, 2024 | Bronstein | 1–0 | Gengler | 39th European Chess Club Cup | Modern Defense: Standard Line | |
| Sep 22, 2024 | Gengler | ½–½ | Boggiano Pereira | 45th FIDE Chess Olympiad | Semi-Slav Defense: Chigorin Defense | |
| Sep 21, 2024 | Schadler | 0–1 | Gengler | 45th FIDE Chess Olympiad | Queen's Pawn Game: Modern Defense | |
| Sep 20, 2024 | Apol | ½–½ | Gengler | 45th FIDE Chess Olympiad | King's Indian Defense: Smyslov Variation | |
| Sep 19, 2024 | Gengler | 1–0 | Zuniga Garcia | 45th FIDE Chess Olympiad | Hungarian Opening: Sicilian Invitation | |
| Sep 16, 2024 | Bullen | 1–0 | Gengler | 45th FIDE Chess Olympiad | Indian Defense: Przepiorka Variation | |
| Sep 15, 2024 | Gengler | 0–1 | Kostolansky | 45th FIDE Chess Olympiad | Sicilian Defense: Kan Variation | |
| Sep 14, 2024 | Sadek | 1–0 | Gengler | 45th FIDE Chess Olympiad | Modern Defense: Pseudo-Austrian Attack | |
| Sep 13, 2024 | Gengler | ½–½ | Mutuge Ian | 45th FIDE Chess Olympiad | Hungarian Opening: Slav Formation | |
| Apr 12, 2024 | Gengler | 1–0 | Tavernier | Round 6: Gengler, Pierre - Tavernier, Loris | Catalan Opening: Open Defense, Classical Line | |
| Apr 11, 2024 | Gengler | 1–0 | Sheng | Round 5: Gengler, Pierre - Sheng, Ming | King's Indian Attack: Sicilian Variation | |
| Apr 9, 2024 | Karp | 0–1 | Gengler | Round 4: Karp, Serge - Gengler, Pierre | Zukertort Opening: Queen's Gambit Invitation | |
| Apr 8, 2024 | Gengler | 0–1 | Wiedenkeller | Round 3: Gengler, Pierre - Wiedenkeller, Michael | Hungarian Opening | |
| Apr 7, 2024 | Aliferenko | ½–½ | Gengler | Round 2: Aliferenko, Aleksei - Gengler, Pierre | Queen's Pawn Game: Modern Defense | |
| Apr 6, 2024 | Gengler | 0–1 | Bourg | Round 1: Gengler, Pierre - Bourg, Nicolas | Queen's Pawn Game | |
| Aug 9, 2022 | Gengler Pierre | 0–1 | Mehmeti Dritan | WCO | Hungarian Opening: Indian Defense | |
| Aug 8, 2022 | Pinales Roussel Gabriel | 1–0 | Gengler Pierre | WCO | Zukertort Opening: Kingside Fianchetto | |
| Aug 7, 2022 | Gengler Pierre | 0–1 | Valderrama Quiceno Esteban Alb | WCO | Hungarian Opening | |
| Aug 6, 2022 | Gengler Pierre | 1–0 | Tsige Addisalem Temesgen | WCO | Hungarian Opening: Sicilian Invitation | |
| Aug 5, 2022 | Gong Thon Gong | 0–1 | Gengler Pierre | WCO | Sicilian Defense: Taimanov Variation, Szén Variation | |
| Aug 3, 2022 | Gengler Pierre | 1–0 | Teixeira Gil | WCO | Hungarian Opening: Slav Formation | |
| Aug 2, 2022 | Gengler Pierre | 0–1 | Gavarrete Joel | WCO | Hungarian Opening: Indian Defense | |
| Jul 31, 2022 | Shaker Musab | 0–1 | Gengler Pierre | WCO | Queen's Pawn Game: Modern Defense | |
| Jul 30, 2022 | Shengelia David | 1–0 | Gengler Pierre | WCO | Queen's Pawn Game: London System | |
| — | Merhawi Gebrehiwet Samuel | 0–1 | Gengler Pierre | WCO | Tarrasch Defense: Rubinstein System | |
