| Jan 31, 2026 | Roessling | 0–1 | Reitz | Round 1: Roessling, Johannes - Reitz, Gerhard | ? | |
| Dec 30, 2025 | Valavoor | 0–1 | Roessling | DVM U10 2025 | Scotch Game: Potter Variation | |
| Dec 29, 2025 | Roessling | 1–0 | Herrmann | DVM U10 2025 | French Defense: Advance Variation, Paulsen Attack | |
| Dec 29, 2025 | Graf | 1–0 | Roessling | DVM U10 2025 | Italian Game: Giuoco Pianissimo | |
| Dec 29, 2025 | Roessling | 1–0 | Breaz | DVM U10 2025 | Italian Game: Scotch Gambit, Anderssen Attack | |
| Dec 28, 2025 | von Flottwell | 1–0 | Roessling | DVM U10 2025 | Pirc Defense | |
| Dec 28, 2025 | Filis | ½–½ | Roessling | DVM U10 2025 | Pirc Defense | |
| Dec 28, 2025 | Roessling | 1–0 | Mokriak | DVM U10 2025 | Scandinavian Defense: Marshall Variation | |
| Jun 14, 2025 | Roessling | ½–½ | Peterson | DEM U10 2025 | Caro-Kann Defense: Panov Attack, Modern Defense, Mieses Line | |
| Jun 13, 2025 | Bentele | 1–0 | Roessling | DEM U10 2025 | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jun 12, 2025 | Roessling | 1–0 | Kindermann | DEM U10 2025 | Petrov's Defense: Nimzowitsch Attack | |
| Jun 11, 2025 | Schmidt | 0–1 | Roessling | DEM U10 2025 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 11, 2025 | Roessling | ½–½ | Schimming | DEM U10 2025 | Sicilian Defense: O'Kelly Variation, Yerevan System | |
| Jun 10, 2025 | Chanishvili | 1–0 | Roessling | DEM U10 2025 | Italian Game: Classical Variation, Greco Gambit, Traditional Line | |
| Jun 9, 2025 | Roessling | 0–1 | Fendel | DEM U10 2025 | Owen Defense | |
| Jun 8, 2025 | Schroeder | ½–½ | Roessling | DEM U10 2025 | King's Gambit | |
| Jun 8, 2025 | Roessling | 0–1 | Vranckx | DEM U10 2025 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jan 31, 2025 | Zerfass | 1–0 | Roessling | Round 6: Zerfass, Otfried - Roessling, Johannes | Vienna Game: Stanley Variation, Meitner-Mieses Gambit | |
| Jan 29, 2025 | Roessling | 0–1 | Fasshauer | Round 1: Roessling, Johannes - Fasshauer, Jacob | Caro-Kann Defense: Exchange Variation | |
| Jan 19, 2025 | Roessling | 1–0 | Liu | Round 5: Roessling, Johannes - Liu, Yining | Italian Game: Classical Variation, Greco Gambit, Anderssen Variation | |
| Jan 18, 2025 | Awiszus | ½–½ | Roessling | Round 4: Awiszus, Thomas - Roessling, Johannes | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Dec 29, 2024 | Leppin | ½–½ | Roessling | DVM U10 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 28, 2024 | Roessling | 1–0 | Schmidt | DVM U10 2024 | Caro-Kann Defense: Panov Attack, Modern Defense, Mieses Line | |
| Dec 28, 2024 | Roessling | 0–1 | Nune | DVM U10 2024 | Scotch Game: Classical Variation | |
| Dec 28, 2024 | Stopp | 1–0 | Roessling | DVM U10 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 27, 2024 | Roessling | 0–1 | Wegener | DVM U10 2024 | Sicilian Defense: Marshall Counterattack | |
| Dec 27, 2024 | Fabritius | 0–1 | Roessling | DVM U10 2024 | Scotch Game: Classical Variation | |
| Dec 27, 2024 | Roppel | 0–1 | Roessling | DVM U10 2024 | Italian Game: Two Knights Defense, Polerio Defense, Bogoljubow Variation | |
| May 25, 2024 | Roessling | 1–0 | Dutta | DEM U10 2024 | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| May 24, 2024 | Roessling | 1–0 | Schonlau | DEM U10 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 24, 2024 | König | ½–½ | Roessling | DEM U10 2024 | Ruy Lopez: Open | |
| May 23, 2024 | Link | 0–1 | Roessling | DEM U10 2024 | Scotch Game: Potter Variation | |
| May 22, 2024 | Roessling | 0–1 | Katzenstein | DEM U10 2024 | Sicilian Defense: Dragon Variation, Modern Bc4 Variation | |
| May 22, 2024 | Koebel | 1–0 | Roessling | DEM U10 2024 | Rapport-Jobava System | |
| May 21, 2024 | Romberg | ½–½ | Roessling | DEM U10 2024 | Italian Game: Giuoco Pianissimo | |
| May 20, 2024 | Roessling | 0–1 | Dombert | DEM U10 2024 | Caro-Kann Defense: Exchange Variation | |
| May 20, 2024 | Kandora | 1–0 | Roessling | DEM U10 2024 | English Opening: King's English Variation, Two Knights Variation, Reversed Dragon | |
| May 19, 2024 | Roessling | 0–1 | Alloussi | DEM U10 2024 | Italian Game: Classical Variation, Greco Gambit | |
| May 19, 2024 | Mueller | * | Roessling | DEM U10 2024 | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Aug 3, 2024 | Neldner | ½–½ | Roessling | Round 5: Neldner, Moritz - Roessling, Johannes | Queen's Gambit Declined | |
| Aug 2, 2024 | Roessling | ½–½ | Tagiyev | Round 3: Roessling, Johannes - Tagiyev, Timur | Pirc Defense: Classical Variation, Quiet System, Parma Defense | |
| — | Roessling | 1–0 | Schlueter | Round 2: Roessling, Johannes - Schlueter, Oliver | ? | |
| — | Roessling | 0–1 | Salim | Round 3: Roessling, Johannes - Salim, Florian | Sicilian Defense: Lasker-Pelikan Variation, Retreat Variation | |
| — | Roessling | ½–½ | Glaschak | Round 5: Roessling, Johannes - Glaschak, Joachim | Caro-Kann Defense: Exchange Variation | |
| — | Roessling | ½–½ | von Jan | Round 7: Roessling, Johannes - von Jan, Svenja, Dr. | French Defense: Exchange Variation | |
| — | Fuchs | 0–1 | Roessling | Round 1: Fuchs, Atreyo - Roessling, Johannes | Italian Game: Giuoco Piano | |
| — | Schnabel | 1–0 | Roessling | Round 4: Schnabel, Julian - Roessling, Johannes | Bishop's Opening: Vienna Hybrid | |
| — | Hemme | ½–½ | Roessling | Round 6: Hemme, Gregory - Roessling, Johannes | Queen's Gambit Declined: Three Knights Variation | |