| May 30, 2026 | Atoyan | ½–½ | Mester | DEM U18 2026 | Vienna Game: Stanley Variation, Monster Declined | |
| May 29, 2026 | Mester | 1–0 | Sommer | DEM U18 2026 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 28, 2026 | Strehse | ½–½ | Mester | DEM U18 2026 | King's Indian Attack: Sicilian Variation | |
| May 27, 2026 | Mester | 1–0 | Holzwarth | DEM U18 2026 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 27, 2026 | Musiienko | 1–0 | Mester | DEM U18 2026 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| May 26, 2026 | Mester | 1–0 | Luebke | DEM U18 2026 | Grünfeld Defense: Exchange Variation | |
| May 25, 2026 | Torosyan | 0–1 | Mester | DEM U18 2026 | Ruy Lopez: Morphy Defense, Norwegian Variation | |
| May 24, 2026 | Mester | ½–½ | Trunz | DEM U18 2026 | Slav Defense: Exchange Variation | |
| May 24, 2026 | Deschler | ½–½ | Mester | DEM U18 2026 | Four Knights Game: Scotch Variation, Krause Gambit, Leonhardt Defense | |
| Feb 15, 2026 | Mester | 0–1 | Medhus | Runde 9: Mester, Philipp - Medhus, Vitus Bondo | Indian Defense: Anti-Grünfeld, Alekhine Variation | |
| Feb 14, 2026 | Korchynskyi | ½–½ | Mester | Runde 8: Korchynskyi, Mykola - Mester, Philipp | Queen's Gambit Accepted: Classical Defense, Main Line | |
| Feb 14, 2026 | Mester | ½–½ | Vollbehr | Runde 7: Mester, Philipp - Vollbehr, Bjarne | Modern Defense: Kotov Variation | |
| Feb 13, 2026 | Fuhrmann | 0–1 | Mester | Runde 6: Fuhrmann, Bahne - Mester, Philipp | Catalan Opening: Closed | |
| Feb 12, 2026 | Mester | 0–1 | Holtel | Runde 5: Mester, Philipp - Holtel, Jasper | Benoni Defense: King's Pawn Line, with Nge2 | |
| Feb 11, 2026 | Hald Falkesgaard | 0–1 | Mester | Runde 3: Hald Falkesgaard, Jeppe - Mester, Philipp | Queen's Gambit Declined: Queen's Knight Variation | |
| Feb 10, 2026 | Mester | ½–½ | Plat | Runde 2: Mester, Philipp - Plat, Vojtech | Lion Defense: Lion's Jaw | |
| Feb 10, 2026 | Kopylov | ½–½ | Mester | Runde 1: Kopylov, Michael - Mester, Philipp | Dutch Defense: Stonewall Variation, Modern Variation | |
| Feb 9, 2026 | Korneev | 1–0 | Mester | Runde 4: Korneev, Oleg - Mester, Philipp | Dutch Defense: Raphael Variation | |
| Jan 5, 2026 | Mester | 0–1 | Wecker | 36. Staufer Open 2026 A | Nimzo-Indian Defense: Kmoch Variation | |
| Jan 4, 2026 | Mester | ½–½ | Gustain | 36. Staufer Open 2026 A | Queen's Gambit Declined: Chigorin Defense | |
| Jan 2, 2026 | Mester | 0–1 | Kutzner | 36. Staufer Open 2026 A | Neo-Grünfeld Defense: Goglidze Attack | |
| Nov 23, 2025 | Mester | ½–½ | Golubka | Heusenstamm Sparkassen Open 2025 | Dutch Defense: Classical Variation | |
| Nov 23, 2025 | Commercon | 0–1 | Mester | Heusenstamm Sparkassen Open 2025 | English Opening: Agincourt Defense | |
| Nov 22, 2025 | Mester | 0–1 | Poetsch | Heusenstamm Sparkassen Open 2025 | Nimzo-Indian Defense: St. Petersburg Variation | |
| Nov 22, 2025 | Sheng | 0–1 | Mester | Heusenstamm Sparkassen Open 2025 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Oct 5, 2025 | Mester | ½–½ | Semling | Deutsche Ländermeisterschaft 2025 | Queen's Gambit Declined: Austrian Defense | |
| Oct 4, 2025 | Mester | ½–½ | Terlouw | Deutsche Ländermeisterschaft 2025 | Nimzo-Indian Defense: Rubinstein System, Rubinstein Variation | |
| Oct 3, 2025 | Sieber | 0–1 | Mester | Deutsche Ländermeisterschaft 2025 | Dutch Defense: Hopton Attack | |
| Oct 3, 2025 | Mester | 0–1 | Yasmo | Deutsche Ländermeisterschaft 2025 | Queen's Gambit Declined: Charousek Variation | |
| Jul 31, 2025 | Mester | 1–0 | Hempel | Round 2: Mester, Philipp - Hempel, Lorenz | Nimzo-Indian Defense: Kmoch Variation | |
| Jun 14, 2025 | Marcziter | 0–1 | Mester | DEM U16 2025 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 13, 2025 | Mester | ½–½ | Burkart | DEM U16 2025 | King's Indian Attack | |
| Jun 12, 2025 | Klaska | 1–0 | Mester | DEM U16 2025 | Dutch Defense: Staunton Gambit, Alekhine Variation | |
| Jun 11, 2025 | Mester | ½–½ | Schuricht | DEM U16 2025 | Caro-Kann Defense: Exchange Variation | |
| Jun 11, 2025 | Mester | ½–½ | Sauer | DEM U16 2025 | Nimzo-Indian Defense | |
| Jun 10, 2025 | Steger | 0–1 | Mester | DEM U16 2025 | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Jun 9, 2025 | Helms | 0–1 | Mester | DEM U16 2025 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 8, 2025 | Mester | ½–½ | Jahnz | DEM U16 2025 | Nimzo-Indian Defense | |
| Jun 8, 2025 | Herrmann | ½–½ | Mester | DEM U16 2025 | Dutch Defense: Stonewall Variation, Modern Variation | |
| Jan 4, 2025 | Velicka | 1–0 | Mester | 35. Staufer Open 2025 | Ruy Lopez: Berlin Defense | |
| Jan 3, 2025 | Mester | ½–½ | Langheinrich | 35. Staufer Open 2025 | Old Indian Defense: Ukrainian Variation | |
| Jan 2, 2025 | Mester | ½–½ | Hahn | 35. Staufer Open 2025 | Dutch Defense: Classical Variation | |
| Oct 6, 2024 | Ratushnyi | 0–1 | Mester | Deutsche Ländermeisterschaft 2024 | Four Knights Game: Scotch Variation, Schmid Defense | |
| Oct 5, 2024 | Mester | ½–½ | Mader | Deutsche Ländermeisterschaft 2024 | Neo-Grünfeld Defense: Goglidze Attack | |
| Oct 5, 2024 | Herrmann | ½–½ | Mester | Deutsche Ländermeisterschaft 2024 | Ruy Lopez: Berlin Defense | |
| Oct 4, 2024 | Mester | 1–0 | Moeller | Deutsche Ländermeisterschaft 2024 | Neo-Grünfeld Defense: Goglidze Attack | |
| Oct 4, 2024 | Malinowsky | 0–1 | Mester | Deutsche Ländermeisterschaft 2024 | Ruy Lopez: Berlin Defense | |
| Oct 3, 2024 | Mester | ½–½ | Mueller | Deutsche Ländermeisterschaft 2024 | Nimzo-Indian Defense: Normal Variation | |
| Oct 3, 2024 | Noennig | 0–1 | Mester | Deutsche Ländermeisterschaft 2024 | Italian Game: Classical Variation, Greco Gambit | |
| Jul 27, 2024 | Mester | 0–1 | Wong | Round 6: Mester, Philipp - Wong, Gengchun | Modern Defense: Beefeater Variation | |
| Jul 26, 2024 | Pallas | 1–0 | Mester | Round 4: Pallas, Sebastian - Mester, Philipp | Italian Game: Giuoco Pianissimo, Normal | |
| May 25, 2024 | Mester | 1–0 | Asmussen | DEM U16 2024 | Bird Opening: Dutch Variation | |
| May 24, 2024 | Moeller | ½–½ | Mester | DEM U16 2024 | Scotch Game: Scotch Gambit, Cochrane-Anderssen Variation | |
| May 23, 2024 | Hoppstaedter | 1–0 | Mester | DEM U16 2024 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 22, 2024 | Mester | 1–0 | Goepfert | DEM U16 2024 | Bird Opening: Dutch Variation | |
| May 22, 2024 | Mester | ½–½ | Karle | DEM U16 2024 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 21, 2024 | Helms | 1–0 | Mester | DEM U16 2024 | Italian Game: Giuoco Piano | |
| May 20, 2024 | Mester | ½–½ | Strehse | DEM U16 2024 | Nimzo-Indian Defense: Normal Variation | |
| May 19, 2024 | Mester | ½–½ | Braeutigam | DEM U16 2024 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 19, 2024 | Haubold | ½–½ | Mester | DEM U16 2024 | Ruy Lopez: Open Berlin Defense, l'Hermet Variation | |
| Nov 24, 2024 | Mester | ½–½ | Gramb | Round 5: Mester, Philipp - Gramb, Marius | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Nov 23, 2024 | Mester | 0–1 | Johnen | Round 3: Mester, Philipp - Johnen, Daniel | Tarrasch Defense: Classical Variation, Réti Variation | |
| Oct 5, 2023 | Junge | 0–1 | Mester | Deutsche Ländermeisterschaft 2023 | Ruy Lopez: Berlin Defense | |
| Oct 4, 2023 | Mester | ½–½ | Tarasenko | Deutsche Ländermeisterschaft 2023 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Oct 3, 2023 | Glowiak | ½–½ | Mester | Deutsche Ländermeisterschaft 2023 | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Oct 1, 2023 | Mester | 1–0 | Fischer | Deutsche Ländermeisterschaft 2023 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Oct 1, 2023 | Voigt | 1–0 | Mester | Deutsche Ländermeisterschaft 2023 | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| — | Mester | 0–1 | Bagrationi | Round 4: Mester, Philipp - Bagrationi, Alexander | Indian Defense: Anti-Grünfeld, Alekhine Variation | |
| — | Mester | 1–0 | Haubold | Round 6: Mester, Philipp - Haubold, Christian | King's Indian Defense: Sämisch Variation, Closed Variation, Main Line | |
| — | Mester | 1–0 | Aepfler | Round 7: Mester, Philipp - Aepfler, Christian | Queen's Gambit Accepted: Showalter Variation | |
| — | Grossmann | ½–½ | Mester | Round 3: Grossmann, Piet - Mester, Philipp | Ruy Lopez: Morphy Defense, Cozio Defense | |