| May 10, 2026 | Tsereteli | 1–0 | Oelmann | Round 9: Tsereteli, Tornike - Oelmann, Henry | Petrov's Defense: French Attack | |
| May 9, 2026 | Oelmann | 1–0 | Di Pietro | Round 8: Oelmann, Henry - Di Pietro, Vincenzo | Benko Gambit Accepted: Fully Accepted Variation | |
| Apr 28, 2026 | Oelmann | ½–½ | Kimani | Round 4: Oelmann, Henry - Kimani, Kimingi | Benoni Defense: Taimanov Variation | |
| Apr 28, 2026 | Bogacheva | 1–0 | Oelmann | Round 7: Bogacheva, Nikol - Oelmann, Henry | Petrov's Defense: Nimzowitsch Attack | |
| Nov 22, 2025 | Oelmann | 0–1 | Nied | Round 9: Oelmann, Henry - Nied, Pascal | Bogo-Indian Defense: Retreat Variation | |
| Nov 22, 2025 | Gromadsky | 0–1 | Oelmann | Round 8: Gromadsky, Dmitry - Oelmann, Henry | Petrov's Defense: Nimzowitsch Attack | |
| Nov 22, 2025 | Oelmann | ½–½ | Dvorsky | Round 7: Oelmann, Henry - Dvorsky, Radovan | Queen's Pawn Game: Colle System | |
| Nov 22, 2025 | Oelmann | 1–0 | Zahed | Round 6: Oelmann, Henry - Zahed, Pezhman | Horwitz Defense | |
| Nov 22, 2025 | Baumann | 0–1 | Oelmann | Round 5: Baumann, Paul - Oelmann, Henry | Rapport-Jobava System | |
| Nov 22, 2025 | Oelmann | 0–1 | Backhouse | Round 4: Oelmann, Henry - Backhouse, Nicholas | Indian Defense: Anti-Nimzo-Indian | |
| Nov 22, 2025 | Glowiak | ½–½ | Oelmann | Round 3: Glowiak, Alexandra - Oelmann, Henry | Petrov's Defense: Three Knights Game | |
| Nov 22, 2025 | Oelmann | 0–1 | Kopylov | Round 2: Oelmann, Henry - Kopylov, Daniel | English Opening: Symmetrical Variation, Three Knights Variation | |
| Nov 22, 2025 | Funk | 0–1 | Oelmann | Round 1: Funk, Felix - Oelmann, Henry | Pirc Defense | |
| Nov 30, 2024 | Oelmann | 0–1 | Bitan | Round 2: Oelmann, Henry - Bitan, Banerjee | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Nov 30, 2024 | Oelmann | 1–0 | Aisemberg | Round 4: Oelmann, Henry - Aisemberg, Liem | English Opening: Anglo-Indian Defense, Scandinavian Defense, Exchange Variation | |
| Nov 30, 2024 | Oelmann | 1–0 | Alshbol | Round 6: Oelmann, Henry - Alshbol, Dyab | Queen's Pawn Game: Chigorin Variation | |
| Nov 30, 2024 | Boettcher | 0–1 | Oelmann | Round 1: Boettcher, Jona - Oelmann, Henry | Nimzo-Indian Defense: Romanishin Variation | |
| Nov 30, 2024 | Oldenburg | 0–1 | Oelmann | Round 3: Oldenburg, Theo - Oelmann, Henry | Pirc Defense: Austrian Attack | |
| Nov 30, 2024 | Keenan | 1–0 | Oelmann | Round 5: Keenan, Cathal - Oelmann, Henry | Alekhine Defense: Four Pawns Attack, Main Line | |
| Nov 30, 2024 | Peng | 0–1 | Oelmann | Round 7: Peng, Xiang-Tobias - Oelmann, Henry | Nimzo-Larsen Attack: Indian Variation | |
| Nov 4, 2024 | Oelmann | 0–1 | Zhumabek | Round 9: Oelmann, Henry - Zhumabek, Nurasyl | King's Indian Defense: Makogonov Variation | |
| Nov 3, 2024 | Amgalanbaatar | 0–1 | Oelmann | Round 8: Amgalanbaatar, Ravdanlkhumbuu - Oelmann, Henry | Four Knights Game: Italian Variation, Noa Gambit | |
| Nov 2, 2024 | Oelmann | 1–0 | Khayriddine Battikh | Round 7: Oelmann, Henry - Khayriddine Battikh | Queen's Gambit Declined | |
| Nov 1, 2024 | Stokes | 0–1 | Oelmann | Round 6: Stokes, Stephen - Oelmann, Henry | Yusupov-Rubinstein System | |
| Oct 31, 2024 | Oelmann | 1–0 | Lurdalen | Round 5: Oelmann, Henry - Lurdalen, Svein Erik | English Opening: Symmetrical Variation | |
| Oct 30, 2024 | Oelmann | 0–1 | Ainakul | Round 4: Oelmann, Henry - Ainakul, Mukhtar | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Oct 29, 2024 | Amankos | 0–1 | Oelmann | Round 3: Amankos, Yerbolat - Oelmann, Henry | Alekhine Defense: Exchange Variation | |
| Oct 27, 2024 | Louche | 1–0 | Oelmann | Round 1: Louche, Herve - Oelmann, Henry | Four Knights Game: Scotch Variation | |
| Oct 27, 2022 | Oelmann | 0–1 | Stoychev | World Amateur CC U2000 | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Oct 22, 2022 | Lopez Ramirez | * | Oelmann | World Amateur CC U2000 | ? | |