| May 30, 2026 | Leonhardt | 0–1 | Rau | DEM U14 2026 | Queen's Gambit Declined: Exchange Variation, Sämisch Variation | |
| May 29, 2026 | Leonhardt | 0–1 | Gao | DEM U14 2026 | English Opening: Agincourt Defense | |
| May 28, 2026 | Zander | ½–½ | Leonhardt | DEM U14 2026 | King's Indian Attack | |
| May 27, 2026 | Leonhardt | ½–½ | Wagener | DEM U14 2026 | Tarrasch Defense: Classical Variation | |
| May 27, 2026 | Bundan | ½–½ | Leonhardt | DEM U14 2026 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| May 26, 2026 | Leonhardt | 1–0 | Richter | DEM U14 2026 | English Opening: Symmetrical Variation, Anti-Benoni Variation | |
| May 25, 2026 | Kelembet | 1–0 | Leonhardt | DEM U14 2026 | Catalan Opening: Closed | |
| May 24, 2026 | Leonhardt | ½–½ | Kelembet | DEM U14 2026 | English Opening: Symmetrical Variation | |
| May 24, 2026 | Tarasenko | ½–½ | Leonhardt | DEM U14 2026 | French Defense: Advance Variation, Paulsen Attack | |
| Dec 30, 2025 | Scharff | ½–½ | Leonhardt | DVM U20 2025 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Dec 29, 2025 | Leonhardt | 1–0 | Cilo | DVM U20 2025 | English Opening: Symmetrical Variation | |
| Dec 29, 2025 | Dersewski | 0–1 | Leonhardt | DVM U20 2025 | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Dec 28, 2025 | Leonhardt | 1–0 | Chrubasik | DVM U20 2025 | Neo-Grünfeld Defense: Classical Variation, Original Defense | |
| Dec 28, 2025 | Glavev | ½–½ | Leonhardt | DVM U20 2025 | Sicilian Defense: Closed | |
| Dec 27, 2025 | Leonhardt | 0–1 | Akladius | DVM U20 2025 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Dec 27, 2025 | Holzwarth | 1–0 | Leonhardt | DVM U20 2025 | Zukertort Opening | |
| Jun 14, 2025 | Leonhardt | 0–1 | Svanidze | DEM U14 2025 | Zukertort Opening | |
| Jun 13, 2025 | Vakeel | 0–1 | Leonhardt | DEM U14 2025 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 12, 2025 | Leonhardt | 0–1 | Lee | DEM U14 2025 | Réti Opening | |
| Jun 11, 2025 | Leonhardt | ½–½ | Meitzner | DEM U14 2025 | Zukertort Opening: Sicilian Invitation | |
| Jun 11, 2025 | Lanert | ½–½ | Leonhardt | DEM U14 2025 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jun 10, 2025 | Fritzsche | 1–0 | Leonhardt | DEM U14 2025 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jun 9, 2025 | Leonhardt | ½–½ | Haustein | DEM U14 2025 | English Opening: Agincourt Defense, Catalan Defense | |
| Jun 8, 2025 | Savchuk | 1–0 | Leonhardt | DEM U14 2025 | French Defense: Advance Variation, Paulsen Attack | |
| Jun 8, 2025 | Leonhardt | 0–1 | Zhang | DEM U14 2025 | King's Indian Attack | |
| Dec 30, 2024 | Leonhardt | 0–1 | Teng | DVM U12 2024 | King's Indian Attack | |
| Dec 29, 2024 | Tu | 1–0 | Leonhardt | DVM U12 2024 | French Defense: Knight Variation | |
| Dec 29, 2024 | Wingerath | ½–½ | Leonhardt | DVM U12 2024 | French Defense: Rubinstein Variation, Blackburne Defense | |
| Dec 28, 2024 | Leonhardt | 1–0 | Gilcher | DVM U12 2024 | King's Indian Attack | |
| Dec 28, 2024 | Leonhardt | 0–1 | Lange | DVM U12 2024 | Catalan Opening: Open Defense, Classical Line | |
| Dec 27, 2024 | Leonhardt | 1–0 | Tomovski | DVM U12 2024 | King's Indian Attack: Sicilian Variation | |
| Dec 27, 2024 | Berger | ½–½ | Leonhardt | DVM U12 2024 | French Defense: Rubinstein Variation, Blackburne Defense | |
| May 25, 2024 | Leonhardt | 1–0 | Fritzsche | DEM U12 2024 | Indian Defense: King's Indian Variation, Fianchetto Variation | |
| May 24, 2024 | Draude | 1–0 | Leonhardt | DEM U12 2024 | French Defense: Rubinstein Variation, Blackburne Defense | |
| May 23, 2024 | Leonhardt | ½–½ | Grabowski | DEM U12 2024 | King's Indian Attack: French Variation | |
| May 22, 2024 | Leonhardt | 0–1 | Rodriguez Klasen | DEM U12 2024 | King's Indian Attack: Spassky Variation | |
| May 22, 2024 | Lee | 1–0 | Leonhardt | DEM U12 2024 | English Opening: Agincourt Defense | |
| May 21, 2024 | Obermair | 0–1 | Leonhardt | DEM U12 2024 | Semi-Slav Defense: Accelerated Move Order | |
| May 20, 2024 | Leonhardt | 1–0 | Rinke | DEM U12 2024 | King's Indian Attack | |
| May 19, 2024 | Leonhardt | 0–1 | Zhang | DEM U12 2024 | King's Indian Attack: Sicilian Variation | |
| May 19, 2024 | Schmidt | 1–0 | Leonhardt | DEM U12 2024 | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| Jun 11, 2022 | Junge | 1–0 | Leonhardt | DEM U10 2022 | Ruy Lopez: Closed | |
| Jun 10, 2022 | Leonhardt | 1–0 | Schmidt | DEM U10 2022 | Queen's Gambit Declined: Cambridge Springs Defense | |
| Jun 10, 2022 | Hellriegel | ½–½ | Leonhardt | DEM U10 2022 | Italian Game: Giuoco Piano | |
| Jun 9, 2022 | Leonhardt | 1–0 | Khanbekyan | DEM U10 2022 | Nimzo-Indian Defense: Classical Variation | |
| Jun 8, 2022 | Leonhardt | 1–0 | Antonius | DEM U10 2022 | Queen's Gambit Declined | |
| Jun 8, 2022 | Classen | 1–0 | Leonhardt | DEM U10 2022 | Ruy Lopez: Morphy Defense | |
| Jun 7, 2022 | Pieper | 1–0 | Leonhardt | DEM U10 2022 | Ruy Lopez: Exchange Variation | |
| Jun 6, 2022 | Leonhardt | 0–1 | Svanidze | DEM U10 2022 | Benoni Defense | |
| Jun 6, 2022 | Leonhardt | 0–1 | Hagn | DEM U10 2022 | Slav Defense | |
| Jun 5, 2022 | Chua | 1–0 | Leonhardt | DEM U10 2022 | King's Gambit | |
| Jun 5, 2022 | Wang | 0–1 | Leonhardt | DEM U10 2022 | Four Knights Game: Scotch Variation Accepted | |