KIERSTEIN Marcel
Poland
MU18 +90
Olimpia Grudziądz
Belts
| 4. kyu - orange belt | 21.02.2022 |
| 3,5. kyu - orange-green belt | 15.08.2023 |
| 3. kyu - green belt | 26.05.2024 |
| 1. kyu - brown belt | 01.04.2026 |
Poland
MU18 +90
Olimpia Grudziądz
| 4. kyu - orange belt | 21.02.2022 |
| 3,5. kyu - orange-green belt | 15.08.2023 |
| 3. kyu - green belt | 26.05.2024 |
| 1. kyu - brown belt | 01.04.2026 |