KOLAK Roko
Croatia
U18 - Male -90
Samuraj Đakovo
Belts
| 8. kyu - white yellow belt | 19.06.2015 |
| 7. kyu - yellow belt | 21.06.2016 |
| 6. kyu - yellow orange belt | 22.06.2017 |
| 5. kyu - orange belt | 19.06.2018 |
| 4. kyu - orange green belt | 16.07.2021 |
| 3. kyu - green belt | 21.06.2022 |