| Jun 26, 2026 | Murra | 0–1 | Leonov | Round 11: Murra, Mattia - Leonov, Leonid | Sicilian Defense: Najdorf Variation | |
| Jun 25, 2026 | Leonov | 0–1 | Barnes | Round 10: Leonov, Leonid - Barnes, Joshua | Queen's Gambit Declined: Queen's Knight Variation | |
| Jun 24, 2026 | Zangrilli | 0–1 | Leonov | Round 9: Zangrilli, Leonardo - Leonov, Leonid | Nimzo-Larsen Attack: Modern Variation | |
| Jun 23, 2026 | Leonov | 0–1 | Kavazov | U16 Open | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jun 22, 2026 | Krakops | 1–0 | Leonov | Round 7: Krakops, Martijs - Leonov, Leonid | King's Indian Defense: Orthodox Variation, Glek Defense | |
| Jun 20, 2026 | Leonov | 0–1 | Stickler | Round 6: Leonov, Leonid - Stickler, Florentin | Sicilian Defense: Kupreichik Variation | |
| Jun 19, 2026 | Religa | 0–1 | Leonov | Round 5: Religa, Jakub - Leonov, Leonid | King's Pawn Game: Tayler Opening, Inverted Hanham | |
| Jun 18, 2026 | Leonov | 1–0 | Albu | Round 4: Leonov, Leonid - Albu, Vlad | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations | |
| Jun 17, 2026 | Tseng | 1–0 | Leonov | Round 3: Tseng, Bradley - Leonov, Leonid | Sicilian Defense: Chekhover Variation | |
| Jun 16, 2026 | Leonov | 0–1 | Melnikov | Round 2: Leonov, Leonid - Melnikov, Fedor | Queen's Gambit Declined: Barmen Variation | |
| Jun 15, 2026 | Hsin | 0–1 | Leonov | Round 1: Hsin, Kai-En - Leonov, Leonid | Modern Defense | |
| Apr 2, 2026 | Benedikt | ½–½ | Leonov | Round 7: Benedikt, Noah - Leonov, Leonid | East Indian Defense | |
| Apr 1, 2026 | Leonov | 1–0 | Raber | Round 6: Leonov, Leonid - Raber, Eduard | Pirc Defense | |
| Mar 31, 2026 | Leonov | ½–½ | Prober | Round 5: Leonov, Leonid - Prober, Raphael | Sicilian Defense: Scheveningen Variation, Classical Variation | |
| Mar 31, 2026 | Kim | 0–1 | Leonov | Round 4: Kim, Thomas Jakob - Leonov, Leonid | Four Knights Game | |
| Mar 30, 2026 | Pashkovskyi | * | Leonov | Round 3: Pashkovskyi, Yehor - Leonov, Leonid | ? | |
| Mar 29, 2026 | Leonov | 0–1 | Pausweg | Round 2: Leonov, Leonid - Pausweg, Daniel | Queen's Gambit Declined: Harrwitz Attack | |
| Mar 29, 2026 | Rella | * | Leonov | Round 1: Rella, Mario - Leonov, Leonid | ? | |
| Sep 20, 2025 | Leonov | 1–0 | Nicolussi | Wiener LM 2025 Open | French Defense: Winawer Variation, Bogoljubow Variation | |
| Sep 19, 2025 | Brandl | 0–1 | Leonov | Wiener LM 2025 Open | Zukertort Opening: Sicilian Invitation | |
| Sep 18, 2025 | Leonov | 1–0 | Veladzic | Wiener LM 2025 Open | Scandinavian Defense: Gubinsky-Melts Defense | |
| Sep 17, 2025 | Fuertler | 1–0 | Leonov | Wiener LM 2025 Open | Ruy Lopez: Classical Variation | |
| Sep 16, 2025 | Leonov | 1–0 | Kravchuk | Wiener LM 2025 Open | Nimzo-Indian Defense: Normal Variation | |
| Sep 15, 2025 | Karasevych | 1–0 | Leonov | Wiener LM 2025 Open | Ruy Lopez: Morphy Defense, Schliemann Defense Deferred | |
| Sep 14, 2025 | Leonov | 1–0 | Karelina | Wiener LM 2025 Open | King's Indian Attack: Symmetrical Defense | |
| Sep 13, 2025 | Armeniakos | 0–1 | Leonov | Wiener LM 2025 Open | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Sep 13, 2025 | Seikmann | 0–1 | Leonov | Wiener LM 2025 Open | Rat Defense: English Rat | |
| Sep 12, 2025 | Aichinger | 1–0 | Leonov | Wiener BlitzschachLM 2025 | Sicilian Defense: Najdorf Variation | |
| Sep 12, 2025 | Leonov | * | Kundianok | Wiener BlitzschachLM 2025 | Queen's Gambit Declined: Exchange Variation, Sämisch Variation | |
| Sep 12, 2025 | Jevremovic | 0–1 | Leonov | Wiener BlitzschachLM 2025 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Sep 12, 2025 | Leonov | 1–0 | Calderon Tocino | Wiener BlitzschachLM 2025 | Alekhine Defense: Exchange Variation | |
| Sep 12, 2025 | Soelkner | 0–1 | Leonov | Wiener BlitzschachLM 2025 | French Defense: Exchange Variation | |
| Sep 12, 2025 | Leonov | 0–1 | Stickler | Wiener BlitzschachLM 2025 | Queen's Gambit Declined: Harrwitz Attack | |
| Sep 12, 2025 | Gold | 1–0 | Leonov | Wiener BlitzschachLM 2025 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Siesta Variation | |
| Sep 12, 2025 | Leonov | 1–0 | Kotliar | Wiener BlitzschachLM 2025 | King's Indian Attack | |
| Sep 12, 2025 | Leonov | 1–0 | Penker | Wiener BlitzschachLM 2025 | French Defense: Rubinstein Variation | |
| Sep 12, 2025 | Schwabeneder | 1–0 | Leonov | Wiener BlitzschachLM 2025 | King's Indian Attack: Symmetrical Defense | |
| Sep 12, 2025 | Welzel | 0–1 | Leonov | Wiener BlitzschachLM 2025 | English Opening | |
| Jul 24, 2025 | Leonov | ½–½ | Gafner | Biel Chess Festival 2025 MTO | Four Knights Game: Glek System | |
| Jul 23, 2025 | Leonov | 1–0 | Faraone | Biel Chess Festival 2025 MTO | French Defense: Rubinstein Variation, Fort Knox Variation | |
| Jul 22, 2025 | Aryan Goyal | 1–0 | Leonov | Biel Chess Festival 2025 MTO | Rapport-Jobava System | |
| Jul 21, 2025 | Madsen | 1–0 | Leonov | Biel Chess Festival 2025 MTO | Modern Defense | |
| Jul 20, 2025 | Yash Abhijit Patil | 1–0 | Leonov | Biel Chess Festival 2025 Blitz | King's Indian Attack: Symmetrical Defense | |
| Jul 20, 2025 | Leonov | 1–0 | Hirt | Biel Chess Festival 2025 Blitz | Alekhine Defense: Exchange Variation | |
| Jul 20, 2025 | Lipecki | 1–0 | Leonov | Biel Chess Festival 2025 Blitz | Indian Defense | |
| Jul 20, 2025 | Leonov | 1–0 | Buerki | Biel Chess Festival 2025 Blitz | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Jul 20, 2025 | Borisyuk | ½–½ | Leonov | Biel Chess Festival 2025 Blitz | Four Knights Game: Spanish Variation | |
| Jul 20, 2025 | Tereshchenko | ½–½ | Leonov | Biel Chess Festival 2025 Blitz | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jul 20, 2025 | Leonov | 1–0 | Bonanomi | Biel Chess Festival 2025 Blitz | Sicilian Defense: Nimzowitsch Variation, Advance Variation | |
| Jul 20, 2025 | Ganeshram | 0–1 | Leonov | Biel Chess Festival 2025 Blitz | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Jul 20, 2025 | Leonov | 0–1 | Shumilov | Biel Chess Festival 2025 Blitz | Anderssen's Opening | |
| Jul 20, 2025 | Masserey | 1–0 | Leonov | Biel Chess Festival 2025 Blitz | Sicilian Defense: Najdorf Variation, Zagreb Variation | |
| Jul 20, 2025 | Leonov | 1–0 | Borisyuk | Biel Chess Festival 2025 Blitz | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jul 20, 2025 | Dau Khuong Duy | 1–0 | Leonov | Biel Chess Festival 2025 Blitz | Sicilian Defense: Closed | |
| Jul 20, 2025 | Leonov | 1–0 | Thorens | Biel Chess Festival 2025 Blitz | Four Knights Game: Glek System | |
| Jul 19, 2025 | Leonov | 0–1 | Hottinger | Biel Chess Festival 2025 MTO | King's Indian Attack: Symmetrical Defense | |
| Jul 18, 2025 | Lacan Rus | 1–0 | Leonov | Biel Chess Festival 2025 MTO | Sicilian Defense: Moscow Variation | |
| Jul 17, 2025 | Leonov | 1–0 | Malli | Biel Chess Festival 2025 MTO | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| Jul 16, 2025 | Poeck | 1–0 | Leonov | Biel Chess Festival 2025 MTO | English Opening: King's English Variation | |
| Jul 15, 2025 | Leonov | 1–0 | Avaria | Biel Chess Festival 2025 MTO | Philidor Defense: Lion Variation | |
| Jul 14, 2025 | Dau Khuong Duy | 1–0 | Leonov | Biel Chess Festival 2025 MTO | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jul 13, 2025 | Leonov | 1–0 | Berger | Biel Chess Festival 2025 Rapid | Modern Defense | |
| Jul 13, 2025 | Schweizer | 1–0 | Leonov | Biel Chess Festival 2025 Rapid | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jul 13, 2025 | Avilova | 0–1 | Leonov | Biel Chess Festival 2025 Rapid | King's Indian Defense: Normal Variation, Rare Defenses | |
| Jul 13, 2025 | Leonov | 0–1 | Zenker | Biel Chess Festival 2025 Rapid | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 13, 2025 | Schweizer | 1–0 | Leonov | Biel Chess Festival 2025 Rapid | Four Knights Game: Glek System | |
| Jul 13, 2025 | Leonov | 1–0 | Mikavica | Biel Chess Festival 2025 Rapid | Philidor Defense: Lion Variation | |
| Jul 13, 2025 | Kubanyi | 0–1 | Leonov | Biel Chess Festival 2025 Rapid | Sicilian Defense: Sozin Attack, Flank Variation | |
| Jul 13, 2025 | Leonov | 0–1 | Vemparala | Biel Chess Festival 2025 Rapid | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jun 21, 2025 | Leonov | 1–0 | Polterauer | Round 11: Leonov, Leonid - Polterauer, Chiara | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Jun 21, 2025 | Tumanyan | 0–1 | Leonov | Round 10: Tumanyan, Gor - Leonov, Leonid | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 21, 2025 | Leonov | 1–0 | Asanger | Round 9: Leonov, Leonid - Asanger, Felix | Sicilian Defense: Kalashnikov Variation | |
| Jun 21, 2025 | Guba | 1–0 | Leonov | Round 7: Guba, Viktor - Leonov, Leonid | Four Knights Game: Gunsberg Variation | |
| Jun 21, 2025 | Leonov | 0–1 | Kranebitter | Round 5: Leonov, Leonid - Kranebitter, Gerhard | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jun 21, 2025 | Ulmer | 1–0 | Leonov | Round 4: Ulmer, Hanno - Leonov, Leonid | Modern Defense: Standard Defense | |
| Jun 21, 2025 | Leonov | ½–½ | Pilz | Round 3: Leonov, Leonid - Pilz, Dieter | Sicilian Defense: Kalashnikov Variation | |
| Jun 21, 2025 | Hennerbichler | 0–1 | Leonov | Round 2: Hennerbichler, Dominik - Leonov, Leonid | Modern Defense | |
| Jun 21, 2025 | Leonov | 0–1 | Schwabeneder | Round 1: Leonov, Leonid - Schwabeneder, Florian | Zukertort Opening | |
| Jun 20, 2025 | Bachofner | 0–1 | Leonov | Round 9: Bachofner, Lukas - Leonov, Leonid | Sicilian Defense: Snyder Variation | |
| Jun 20, 2025 | Leonov | 0–1 | Ataiants | Round 8: Leonov, Leonid - Ataiants, Igor | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Jun 20, 2025 | Hengl | 1–0 | Leonov | Round 7: Hengl, Philip - Leonov, Leonid | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| Jun 20, 2025 | Wegerer | 0–1 | Leonov | Round 6: Wegerer, Raphael - Leonov, Leonid | Sicilian Defense: Wing Gambit, Marshall Variation | |
| Jun 20, 2025 | Leonov | 0–1 | Neuschmied | Round 5: Leonov, Leonid - Neuschmied, Siegfried | Pirc Defense | |
| Jun 19, 2025 | Jetzl | 1–0 | Leonov | Round 4: Jetzl, Julian - Leonov, Leonid | London System | |
| Jun 19, 2025 | Leonov | 1–0 | Pilz | Round 3: Leonov, Leonid - Pilz, Dieter | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jun 19, 2025 | Ataiants | 0–1 | Leonov | Round 2: Ataiants, Oleg - Leonov, Leonid | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Jun 19, 2025 | Leonov | 0–1 | Froewis | Round 1: Leonov, Leonid - Froewis, Georg | French Defense: Winawer Variation, Poisoned Pawn Variation, Main Line | |
| Jun 1, 2024 | Leonov | 0–1 | Hatzl | Round 11: Leonov, Leonid - Hatzl, Johannes | Nimzo-Larsen Attack | |
| Jun 1, 2024 | Khalakhan | 1–0 | Leonov | Round 9: Khalakhan, Jurij - Leonov, Leonid | Nimzo-Larsen Attack: Modern Variation | |
| Jun 1, 2024 | Leonov | 0–1 | Vrban | Round 8: Leonov, Leonid - Vrban, Damir | Alekhine Defense: Four Pawns Attack, Fianchetto Variation | |
| Jun 1, 2024 | Leonov | 0–1 | Wetscher | Round 7: Leonov, Leonid - Wetscher, Wolfgang | Caro-Kann Defense | |
| Jun 1, 2024 | Casagrande | 0–1 | Leonov | Round 6: Casagrande, Harald - Leonov, Leonid | Queen's Pawn Game: Torre Attack | |
| Jun 1, 2024 | Leonov | 1–0 | Kondrak | Round 5: Leonov, Leonid - Kondrak, Christoph | Sicilian Defense: Mengarini Variation | |
| Jun 1, 2024 | Leonov | 0–1 | Kummer | Round 3: Leonov, Leonid - Kummer, Helmut | Modern Defense: Gurgenidze Defense | |
| Jun 1, 2024 | Leonov | 0–1 | Kilgus | Round 1: Leonov, Leonid - Kilgus, Georg | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 31, 2024 | Kranebitter | 1–0 | Leonov | Round 9: Kranebitter, Gerhard - Leonov, Leonid | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| May 31, 2024 | Leonov | ½–½ | Schranzhofer | Round 8: Leonov, Leonid - Schranzhofer, Marco | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| May 31, 2024 | Hengl | 1–0 | Leonov | Round 7: Hengl, Philip - Leonov, Leonid | Zukertort Opening: Nimzo-Larsen Variation | |
| May 31, 2024 | Leonov | ½–½ | Teuschler | Round 6: Leonov, Leonid - Teuschler, Barbara | Sicilian Defense: Mengarini Variation | |
| May 30, 2024 | Heinrich | ½–½ | Leonov | Round 5: Heinrich, Thomas - Leonov, Leonid | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |