| May 25, 2026 | Udelnov | 0–1 | Kunin | Runde 7: Udelnov, Valentin - Kunin, Vitaly | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| May 24, 2026 | Deniz Mustafa Aktürk | * | Udelnov | Runde 5: Deniz Mustafa Aktürk - Udelnov, Valentin | ? | |
| May 24, 2026 | Udelnov | 1–0 | Kanyamarala | Runde 4: Udelnov, Valentin - Kanyamarala, Tarun | Sicilian Defense: Taimanov Variation | |
| May 22, 2026 | Narayanan S L | 1–0 | Udelnov | Runde 6: Narayanan S L - Udelnov, Valentin | Nimzo-Indian Defense: Normal Variation | |
| Apr 19, 2026 | Udelnov | 1–0 | Spyra | EIIC 2026 | French Defense: Tarrasch Variation, Morozevich Variation | |
| Apr 18, 2026 | Adamczyk | ½–½ | Udelnov | EIIC 2026 | Four Knights Game: Scotch Variation Accepted | |
| Apr 16, 2026 | Udelnov | 0–1 | Fiedorek | EIIC 2026 | Sicilian Defense: Richter-Rauzer Variation | |
| Apr 15, 2026 | Gagic | ½–½ | Udelnov | EIIC 2026 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Apr 14, 2026 | Udelnov | 1–0 | Dovbysh | EIIC 2026 | Sicilian Defense: Lasker-Pelikan Variation | |
| Apr 13, 2026 | Hulka | 1–0 | Udelnov | EIIC 2026 | Indian Defense: Anti-Nimzo-Indian | |
| Apr 12, 2026 | Udelnov | 1–0 | Chmiel | EICC 2026 | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| Apr 10, 2026 | Kulpa | ½–½ | Udelnov | EICC 2026 | Dutch Defense: Semi-Leningrad Variation | |
| Apr 10, 2026 | Udelnov | 1–0 | Kaplanova | EICC 2026 | Petrov's Defense: Classical Attack | |
| Apr 8, 2026 | Zelak | 1–0 | Udelnov | EICC 2026 | Benoni Defense: Fianchetto Variation | |
| Apr 7, 2026 | Udelnov | 0–1 | Royal | EICC 2026 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Dec 30, 2025 | Beyer | ½–½ | Udelnov | DVM U20 2025 | Italian Game: Giuoco Pianissimo, Normal | |
| Dec 29, 2025 | Garner | 1–0 | Udelnov | DVM U20 2025 | Zukertort Opening: Dutch Variation | |
| Dec 29, 2025 | Udelnov | ½–½ | Gold | DVM U20 2025 | French Defense: Tarrasch Variation | |
| Dec 28, 2025 | Lutze | ½–½ | Udelnov | DVM U20 2025 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Dec 28, 2025 | Udelnov | ½–½ | Ermitsch | DVM U20 2025 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Dec 27, 2025 | Udelnov | ½–½ | Melestean | DVM U20 2025 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Dec 15, 2025 | Gallasch | 1–0 | Udelnov | DVM U20 2025 | Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation | |
| Feb 1, 2025 | Udelnov | 1–0 | Poetsch | Round 7: Udelnov, Valentin - Poetsch, Tomas | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jan 31, 2025 | Udelnov | 1–0 | Voigt | Round 5: Udelnov, Valentin - Voigt, Anastasia | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jan 31, 2025 | Spitzl | 1–0 | Udelnov | Round 6: Spitzl, Vinzent - Udelnov, Valentin | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jan 30, 2025 | Udelnov | 1–0 | Noennig | Round 3: Udelnov, Valentin - Noennig, Jakob | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jan 30, 2025 | Groebel | 1–0 | Udelnov | Round 4: Groebel, Aaron - Udelnov, Valentin | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jan 29, 2025 | Udelnov | ½–½ | Shevchenko | Round 1: Udelnov, Valentin - Shevchenko, Igor | Caro-Kann Defense: Advance Variation, Short Variation | |
| Jan 29, 2025 | Lippert | 1–0 | Udelnov | Round 2: Lippert, Daniel - Udelnov, Valentin | Ruy Lopez: Fianchetto Defense | |
| Oct 6, 2024 | Fruth | ½–½ | Udelnov | Deutsche Ländermeisterschaft 2024 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Oct 5, 2024 | Udelnov | ½–½ | Nechitaylo | Deutsche Ländermeisterschaft 2024 | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Oct 5, 2024 | Udelnov | 0–1 | Haug | Deutsche Ländermeisterschaft 2024 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Oct 4, 2024 | Schulz | 0–1 | Udelnov | Deutsche Ländermeisterschaft 2024 | Queen's Pawn Game: Barry Attack, Grünfeld Variation | |
| Oct 3, 2024 | Udelnov | ½–½ | Goldmann | Deutsche Ländermeisterschaft 2024 | French Defense: Rubinstein Variation, Blackburne Defense | |
| Oct 3, 2024 | Baranyai-Molnar | 1–0 | Udelnov | Deutsche Ländermeisterschaft 2024 | Center Game: Paulsen Attack Variation | |
| Jul 25, 2024 | Udelnov | 1–0 | Khulan | Biel Chess Festival MTO | French Defense: Tarrasch Variation, Chistyakov Defense, Modern Line | |
| Jul 24, 2024 | Haugner | 1–0 | Udelnov | Biel Chess Festival MTO | Four Knights Game: Spanish Variation, Rubinstein Variation, Henneberger Variation | |
| Jul 23, 2024 | Udelnov | 1–0 | Vemparala | Biel Chess Festival MTO | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jul 22, 2024 | Krishnan | 1–0 | Udelnov | Biel Chess Festival MTO | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Jul 20, 2024 | Udelnov | 0–1 | Kamber | Biel Chess Festival MTO | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jul 19, 2024 | Kaiser | 0–1 | Udelnov | Biel Chess Festival MTO | Ruy Lopez: Fianchetto Defense | |
| Jul 15, 2024 | Udelnov | 0–1 | Nurman | Biel Chess Festival MTO | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Apr 1, 2024 | Udelnov | ½–½ | Rabette | Round 5: Udelnov, Valentin - Rabette, Paul | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Mar 31, 2024 | Liu | ½–½ | Udelnov | Round 4: Liu, Jason - Udelnov, Valentin | Vienna Game: Vienna Gambit, Main Line | |
| Mar 30, 2024 | Udelnov | 0–1 | Arnold | Round 3: Udelnov, Valentin - Arnold, Rhys | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Mar 30, 2024 | Shadrina | 0–1 | Udelnov | Round 2: Shadrina, Eva - Udelnov, Valentin | Ruy Lopez: Fianchetto Defense | |
| Mar 30, 2024 | Udelnov | ½–½ | Dessyn | Round 1: Udelnov, Valentin - Dessyn, Timothee | Sicilian Defense: Chekhover Variation | |
| Nov 3, 2024 | Udelnov | 0–1 | Gremmel | Round 7: Udelnov, Valentin - Gremmel, Jonas Simon | Caro-Kann Defense: Advance Variation, Short Variation | |
| Nov 2, 2024 | Udelnov | 1–0 | Gellrich | Round 5: Udelnov, Valentin - Gellrich, Peter | Sicilian Defense: Chekhover Variation | |
| Nov 2, 2024 | Skembris | 0–1 | Udelnov | Round 6: Skembris, Simon Max - Udelnov, Valentin | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Nov 1, 2024 | Udelnov | ½–½ | Hintze | Round 3: Udelnov, Valentin - Hintze, Helge | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Nov 1, 2024 | Lippert | 1–0 | Udelnov | Round 4: Lippert, Daniel - Udelnov, Valentin | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Oct 31, 2024 | Udelnov | 1–0 | Kutlar | Round 1: Udelnov, Valentin - Kutlar, Aras | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation | |
| Oct 31, 2024 | Weidemann | ½–½ | Udelnov | Round 2: Weidemann, Jakob - Udelnov, Valentin | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Jul 18, 2024 | Udelnov | 1–0 | Douguet | Biel Chess Festival 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 17, 2024 | Kuandykuly | 1–0 | Udelnov | Biel Chess Festival - MTO | Ruy Lopez: Open, Classical Defense | |
| Jul 16, 2024 | Woong | 1–0 | Udelnov | Biel Chess Festival - MTO | Ruy Lopez: Fianchetto Defense | |
| Oct 5, 2023 | Udelnov | 0–1 | Hoffmann | Deutsche Ländermeisterschaft 2023 | French Defense: Tarrasch Variation, Chistyakov Defense, Modern Line | |
| Oct 4, 2023 | Udelnov | 1–0 | Schulz | Deutsche Ländermeisterschaft 2023 | Sicilian Defense: Kan Variation, Modern Variation | |
| Oct 3, 2023 | Neuhoff | ½–½ | Udelnov | Deutsche Ländermeisterschaft 2023 | Italian Game: Classical Variation, Greco Gambit | |
| Oct 3, 2023 | Weber | ½–½ | Udelnov | Deutsche Ländermeisterschaft 2023 | English Opening: Symmetrical Variation, Duchamp Variation | |
| Oct 2, 2023 | Udelnov | 1–0 | Sommer | Deutsche Ländermeisterschaft 2023 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Oct 1, 2023 | Udelnov | ½–½ | Burkart | Deutsche Ländermeisterschaft 2023 | Sicilian Defense: Chekhover Variation | |
| Oct 1, 2023 | Hubert | 0–1 | Udelnov | Deutsche Ländermeisterschaft 2023 | Ruy Lopez: Fianchetto Defense | |
| Jun 11, 2022 | Udelnov | ½–½ | Torosyan | DEM U14 2022 | Sicilian Defense: Najdorf Variation, English Attack | |
| Jun 10, 2022 | Klaska | 1–0 | Udelnov | DEM U14 2022 | Richter-Veresov Attack: Boyce Defense | |
| Jun 9, 2022 | Udelnov | 1–0 | Wunderlich | DEM U14 2022 | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Jun 8, 2022 | Udelnov | * | Lübke | DEM U14 2022 | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Jun 8, 2022 | Honisch | 1–0 | Udelnov | DEM U14 2022 | Ruy Lopez: Fianchetto Defense | |
| Jun 7, 2022 | Möller | 1–0 | Udelnov | DEM U14 2022 | Italian Game: Deutz Gambit | |
| Jun 6, 2022 | Udelnov | * | Ermitsch | DEM U14 2022 | Petrov's Defense: Nimzowitsch Attack | |
| Jun 5, 2022 | Udelnov | * | Eichhorn | DEM U14 2022 | Sicilian Defense: Four Knights Variation | |
| Jun 5, 2022 | Sinka | * | Udelnov | DEM U14 2022 | King's Indian Defense: Makogonov Variation | |
| — | Udelnov | ½–½ | Machado La Rosa | Round 4: Udelnov, Valentin - Machado La Rosa, Adrian | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| — | Udelnov | 1–0 | Bagrationi | Round 6: Udelnov, Valentin - Bagrationi, Alexander | Sicilian Defense: Richter-Rauzer Variation, Modern Variation | |
| — | Langheinrich | ½–½ | Udelnov | Round 3: Langheinrich, Ferenc - Udelnov, Valentin | King's Indian Defense | |
| — | Heimrath | 0–1 | Udelnov | Round 5: Heimrath, Reiner - Udelnov, Valentin | Italian Game: Scotch Gambit, Canal Variation | |
| — | Petrovskiy | 1–0 | Udelnov | Round 7: Petrovskiy, Vadym - Udelnov, Valentin | English Opening: Anglo-Indian Defense, King's Indian Formation | |