Underworld Betta Hunter 2021
| Top Participant | Entries |
|---|---|
| RAIMY | 1 |
| RAIS | 1 |
| RAIZO SERIZAWA | 1 |
| RAMDZAN | 1 |
| RAMUAN BETTA | 1 |
| RANGGO | 1 |
| RAR BETTA PJBT | 1 |
| RASHID WILD BETTA | 1 |
| RAZAK RANI | 1 |
| RDY BETTA | 1 |
| RED KATANA BETTA | 1 |
| REKEY BETTA | 1 |
| REMY RAFA | 1 |
| REZELMI | 1 |
| RIDHO UK | 1 |
| RIDHO UK ( NISA) | 1 |
| RIDWAN | 1 |
| RIDZUAN BETTQ | 1 |
| RIFQI ZAYYAN BETTA | 1 |
| RIZAL BESI | 1 |