| — | von Mettenheim | 1–0 | Kuehn | Grenke Open | Queen's Gambit Accepted: Classical Defense, Alekhine System | |
| — | Samani | ½–½ | von Mettenheim | new tournament description | Catalan Opening: Open Defense, Classical Line | |
| — | Froewis | 1–0 | von Mettenheim | new tournament description | English Opening: Mikenas-Carls Variation | |
| Apr 6, 2026 | von Mettenheim | 1–0 | Eull | Grenke Chess Festival 2026 Open | Queen's Gambit Declined: Three Knights Variation | |
| Apr 6, 2026 | Mohylnyi | ½–½ | von Mettenheim | Grenke Chess Festival 2026 Open | Ruy Lopez: Schliemann Defense, Tartakower Variation | |
| Apr 4, 2026 | von Mettenheim | 0–1 | Fanninger | Grenke Chess Festival 2026 Open | Zukertort Opening: Kingside Fianchetto | |
| Jan 4, 2026 | Nechitaylo | 0–1 | von Mettenheim | Runde 6: Nechitaylo, Nikita - von Mettenheim, Johannes | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jan 4, 2026 | von Estorff | 0–1 | von Mettenheim | Runde 5: von Estorff, Jacob - von Mettenheim, Johannes | Sicilian Defense: Dragon Variation, Classical Variation | |
| Jan 3, 2026 | Tonndorf | 0–1 | von Mettenheim | Runde 3: Tonndorf, Matthias - von Mettenheim, Johannes | King's Indian Defense: Semi-Averbakh System | |
| Jan 2, 2026 | von Mettenheim | 1–0 | Bundan | Runde 2: von Mettenheim, Johannes - Bundan, Edward | King's Indian Attack | |
| Dec 28, 2025 | von Mettenheim | ½–½ | Hampel | Runde 7: von Mettenheim, Johannes - Hampel, Felix | King's Indian Defense: Larsen Variation | |
| Dec 28, 2025 | von Mettenheim | 0–1 | Voege | Runde 4: von Mettenheim, Johannes - Voege, Tobias | Queen's Indian Defense: Anti-Queen's Indian System | |
| Dec 28, 2025 | Reimer | ½–½ | von Mettenheim | Runde 1: Reimer, Philip - von Mettenheim, Johannes | Ruy Lopez: Cozio Defense | |
| Oct 6, 2025 | Soucek | 1–0 | von Mettenheim | Round 3: Soucek, Jan - von Mettenheim, Johannes | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Oct 5, 2025 | von Mettenheim | ½–½ | Ughuzov | Round 2: von Mettenheim, Johannes - Ughuzov, Ravan | King's Indian Attack | |
| Jul 11, 2025 | Petrus | 0–1 | von Mettenheim | Round 7: Petrus, Adrian - von Mettenheim, Johannes | Sicilian Defense: Modern Variations | |
| Jul 10, 2025 | von Mettenheim | 0–1 | Raczek | Round 6: von Mettenheim, Johannes - Raczek, Krzysztof | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Jul 9, 2025 | von Mettenheim | ½–½ | Pidluznij | Round 5: von Mettenheim, Johannes - Pidluznij, Gleb | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jul 8, 2025 | Bodrogi | ½–½ | von Mettenheim | Round 4: Bodrogi, Bendeguz - von Mettenheim, Johannes | King's Indian Attack | |
| Jul 7, 2025 | Magold | ½–½ | von Mettenheim | Round 3: Magold, Filip - von Mettenheim, Johannes | English Opening: Agincourt Defense | |
| Jul 6, 2025 | von Mettenheim | 0–1 | Jalovec | Round 2: von Mettenheim, Johannes - Jalovec, Igor | Queen's Gambit Accepted: Central Variation, Greco Variation | |
| Jun 28, 2025 | Dotzer | 0–1 | von Mettenheim | Round 1: Dotzer, Lukas - von Mettenheim, Johannes | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Jun 8, 2025 | von Mettenheim | 1–0 | Strehse | DEM U18 2025 | English Opening: Symmetrical Variation, Rubinstein Variation | |
| Jun 8, 2025 | Rempe | 0–1 | von Mettenheim | DEM U18 2025 | Ruy Lopez: Cozio Defense | |
| Jun 6, 2025 | Englert | ½–½ | von Mettenheim | DEM U18 2025 | Semi-Slav Defense: Meran Variation | |
| Jun 6, 2025 | von Mettenheim | 1–0 | Stork | DEM U18 2025 | King's Indian Attack: Symmetrical Defense | |
| Jun 6, 2025 | Ohler | 0–1 | von Mettenheim | DEM U18 2025 | English Opening: Agincourt Defense | |
| Jun 6, 2025 | von Mettenheim | 1–0 | Luebke | DEM U18 2025 | Queen's Gambit Declined: Albin Countergambit, Normal Line | |
| Jun 6, 2025 | Petrovskiy | ½–½ | von Mettenheim | DEM U18 2025 | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Jun 6, 2025 | von Mettenheim | 1–0 | Heinrich | DEM U18 2025 | Queen's Gambit Accepted | |
| Jun 6, 2025 | Moeller | 0–1 | von Mettenheim | DEM U18 2025 | Zukertort Opening | |
| May 25, 2025 | Tonndorf | ½–½ | von Mettenheim | Round 5: Tonndorf, Matthias - von Mettenheim, Johannes | English Opening: Agincourt Defense | |
| May 25, 2025 | von Mettenheim | 1–0 | Buchenau | Round 4: von Mettenheim, Johannes - Buchenau, Frank | Nimzo-Indian Defense: Kmoch Variation | |
| May 24, 2025 | von Mettenheim | ½–½ | Jaeger | Round 2: von Mettenheim, Johannes - Jaeger, Uwe, Dr. | Slav Defense: Exchange Variation | |
| May 23, 2025 | Harms | ½–½ | von Mettenheim | Round 1: Harms, Friedjof - von Mettenheim, Johannes | Italian Game: Classical Variation | |
| May 22, 2025 | Kroeze | ½–½ | von Mettenheim | Round 3: Kroeze, Frank - von Mettenheim, Johannes | King's Indian Attack | |
| Apr 21, 2025 | von Mettenheim | 0–1 | Muradli | Round 8: von Mettenheim, Johannes - Muradli, Mahammad | Queen's Pawn Game: London System | |
| Apr 21, 2025 | Maksimovic | 1–0 | von Mettenheim | Grenke Chess Open A | King's Indian Attack | |
| Apr 20, 2025 | von Mettenheim | 1–0 | Lashkin | Round 6: von Mettenheim, Johannes - Lashkin, Jegor | Queen's Pawn Game: London System | |
| Apr 20, 2025 | Engel | 0–1 | von Mettenheim | Round 7: Engel, Luis - von Mettenheim, Johannes | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Apr 19, 2025 | von Mettenheim | 1–0 | Pahud | Round 4: von Mettenheim, Johannes - Pahud, Cedric | Indian Defense: London System | |
| Apr 19, 2025 | Ceres | ½–½ | von Mettenheim | Round 5: Ceres, Dragos - von Mettenheim, Johannes | Italian Game: Giuoco Piano | |
| Apr 18, 2025 | Zymberi | ½–½ | von Mettenheim | Round 3: Zymberi, Agron - von Mettenheim, Johannes | Indian Defense: Pseudo-Benko | |
| Jan 5, 2025 | von Mettenheim | 1–0 | Hampel | Round 7: von Mettenheim, Johannes - Hampel, Felix | King's Indian Defense: Orthodox Variation, Aronin-Taimanov Defense | |
| Jan 4, 2025 | von Mettenheim | 1–0 | Riemay | Round 5: von Mettenheim, Johannes - Riemay, David | Queen's Pawn Game | |
| Jan 4, 2025 | Abel | 0–1 | von Mettenheim | Round 6: Abel, Dennes - von Mettenheim, Johannes | Zukertort Opening | |
| Jan 3, 2025 | von Mettenheim | 1–0 | Drygala | Round 3: von Mettenheim, Johannes - Drygala, Lars | Queen's Indian Defense: Riumin Variation | |
| Jan 3, 2025 | Polster | 1–0 | von Mettenheim | Round 4: Polster, Christian - von Mettenheim, Johannes | Indian Defense | |
| Jan 2, 2025 | von Mettenheim | ½–½ | Peters | Round 1: von Mettenheim, Johannes - Peters, Tom | Yusupov-Rubinstein System | |
| Jan 2, 2025 | Wilmink | 0–1 | von Mettenheim | Round 2: Wilmink, Anna - von Mettenheim, Johannes | Philidor Defense: Lion Variation | |
| Aug 30, 2024 | von Mettenheim | 0–1 | Hajialiyev | EYCC 2024 - O16 | Nimzo-Indian Defense: Kmoch Variation | |
| Aug 28, 2024 | Hauchamps | 1–0 | von Mettenheim | EYCC 2024 - O16 | Catalan Opening: Open Defense, Classical Line | |
| Aug 26, 2024 | von Mettenheim | 0–1 | Nemsadze | EYCC 2024 - O16 | Queen's Indian Defense: Fianchetto Variation | |
| Aug 25, 2024 | Colev | 0–1 | von Mettenheim | EYCC 2024 - O16 | Ruy Lopez: Cozio Defense | |
| Aug 24, 2024 | von Mettenheim | ½–½ | Sapocinic | EYCC 2024 - O16 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Aug 23, 2024 | Menahem | ½–½ | von Mettenheim | EYCC 2024 - O16 | Ruy Lopez: Open, Howell Attack | |
| Aug 22, 2024 | von Mettenheim | 1–0 | Govoreanu | EYCC 2024 - O16 | Slav Defense: Chebanenko Variation | |
| Jun 26, 2024 | Agasarov | ½–½ | von Mettenheim | Round 6: Agasarov, Benik - von Mettenheim, Johannes | Zukertort Opening | |
| Jun 25, 2024 | von Mettenheim | 1–0 | Milikow | Round 5: von Mettenheim, Johannes - Milikow, Elie | Nimzo-Indian Defense: Normal Variation, Ragozin Variation | |
| Jun 24, 2024 | Ernst | 0–1 | von Mettenheim | Round 4: Ernst, Robert - von Mettenheim, Johannes | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Jun 22, 2024 | von Mettenheim | ½–½ | Raczek | Round 2: von Mettenheim, Johannes - Raczek, Krzysztof | Queen's Pawn Game: London System | |
| Jun 9, 2024 | Baisakow | 1–0 | von Mettenheim | Round 5: Baisakow, Alexander - von Mettenheim, Johannes | Caro-Kann Defense: Apocalypse Attack | |
| Jun 9, 2024 | von Mettenheim | 1–0 | Heinemann | Round 4: von Mettenheim, Johannes - Heinemann, Ernst | Zukertort Opening: Kingside Fianchetto | |
| Jun 8, 2024 | von Mettenheim | ½–½ | Reimer | Round 3: von Mettenheim, Johannes - Reimer, Philip | Queen's Pawn Game: Colle System | |
| Jun 8, 2024 | Steffens | ½–½ | von Mettenheim | Round 2: Steffens, Olaf - von Mettenheim, Johannes | Anderssen's Opening | |
| Jun 7, 2024 | Stock | 0–1 | von Mettenheim | Round 1: Stock, Joerg - von Mettenheim, Johannes | Ruy Lopez: Exchange Variation, Bronstein Variation | |
| May 25, 2024 | von Mettenheim | 1–0 | Haubold | DEM U16 2024 | King's Indian Defense: Normal Variation | |
| May 24, 2024 | Semling | 0–1 | von Mettenheim | DEM U16 2024 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| May 23, 2024 | von Mettenheim | ½–½ | Lutze | DEM U16 2024 | King's Indian Defense | |
| May 22, 2024 | von Mettenheim | ½–½ | Klaska | DEM U16 2024 | Yusupov-Rubinstein System | |
| May 22, 2024 | Braeutigam | 0–1 | von Mettenheim | DEM U16 2024 | Queen's Gambit Declined: Ragozin Defense | |
| May 21, 2024 | Moeller | 0–1 | von Mettenheim | DEM U16 2024 | Four Knights Game: Scotch Variation Accepted | |
| May 20, 2024 | von Mettenheim | ½–½ | Sauer | DEM U16 2024 | Queen's Gambit Declined: Cambridge Springs Defense | |
| May 19, 2024 | von Mettenheim | 1–0 | Helms | DEM U16 2024 | Queen's Pawn Game: Colle System | |
| May 19, 2024 | Strehse | 0–1 | von Mettenheim | DEM U16 2024 | Caro-Kann Defense: Panov Attack, Modern Defense | |
| Apr 28, 2024 | von Mettenheim | 1–0 | Pavlidis | Bundesliga 2023/2024 | King's Indian Defense: Orthodox Variation | |
| Apr 27, 2024 | Neugebauer | ½–½ | von Mettenheim | Bundesliga 2023/2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Mar 31, 2024 | Aepfler | ½–½ | von Mettenheim | Grenke Open | Caro-Kann Defense: Two Knights Attack | |
| Mar 30, 2024 | von Mettenheim | ½–½ | Soucek | Grenke Open | Bogo-Indian Defense: Nimzowitsch Variation | |
| Mar 30, 2024 | Jaeschke | 0–1 | von Mettenheim | Grenke Open | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Mar 29, 2024 | von Mettenheim | 0–1 | Divya Deshmukh | Grenke Chess Open 2024 | Bogo-Indian Defense: Retreat Variation | |
| Mar 17, 2024 | Braun | ½–½ | von Mettenheim | Dt. Schachbundesliga 2023/2024 | Slav Defense: Quiet Variation, Schallopp Defense | |
| Mar 16, 2024 | von Mettenheim | ½–½ | Heimann | Dt. Schachbundesliga 2023/2024 | Bogo-Indian Defense: Retreat Variation | |
| Jan 14, 2024 | Nikolic | 1–0 | von Mettenheim | Bundesliga 2023/2024 | Queen's Gambit Declined: Ragozin Defense | |
| Oct 5, 2023 | Guo | 0–1 | Mettenheim | Deutsche Ländermeisterschaft 2023 | Caro-Kann Defense: Endgame Offer | |
| Oct 4, 2023 | Mettenheim | 1–0 | Lesny | Deutsche Ländermeisterschaft 2023 | Queen's Gambit Declined | |
| Oct 3, 2023 | Mettenheim | 0–1 | Spriestersbach | Deutsche Ländermeisterschaft 2023 | King's Indian Defense: Makogonov Variation | |
| Oct 3, 2023 | Musiolik | 1–0 | Mettenheim | Deutsche Ländermeisterschaft 2023 | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation | |
| Oct 2, 2023 | Mettenheim | 1–0 | Stichter | Deutsche Ländermeisterschaft 2023 | Catalan Opening: Closed | |
| Oct 1, 2023 | Lutz | 0–1 | Mettenheim | Deutsche Ländermeisterschaft 2023 | Slav Defense: Czech Variation, Classical System, Main Line | |
| Oct 1, 2023 | von Mettenheim | 1–0 | Bock | Deutsche Ländermeisterschaft 2023 | Queen's Gambit Accepted: Classical Defense, Alekhine System | |
| Apr 9, 2023 | Mettenheim | * | Mohan | Fagernes Chess International 2023 | Dutch Defense: Leningrad Variation | |
| Apr 8, 2023 | Vuppala | ½–½ | Mettenheim | Fagernes Chess International 2023 | Caro-Kann Defense: Advance Variation, Short Variation | |
| Apr 7, 2023 | Mettenheim | 1–0 | Sian | Fagernes Chess International 2023 | Catalan Opening: Open Defense, Classical Line | |
| Apr 6, 2023 | Dey | 0–1 | Mettenheim | Fagernes Chess International 2023 | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Apr 5, 2023 | Mettenheim | 0–1 | Hillarp | Fagernes Chess International 2023 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Apr 4, 2023 | Machlik | ½–½ | Mettenheim | Fagernes Chess International 2023 | Catalan Opening: Open Defense | |
| Apr 3, 2023 | Mettenheim | ½–½ | Bentsen | Fagernes Chess International 2023 | Catalan Opening: Closed | |
| Apr 2, 2023 | Socko | 1–0 | Mettenheim | Fagernes Chess International 2023 | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |