Underworld Betta Hunter 2021
| Top Participant | Entries |
|---|---|
| TSB BETTA | 1 |
| TUAN DANIAL | 1 |
| TUKELEN | 1 |
| TW | 1 |
| U & U | 1 |
| VH BETTA | 1 |
| VICTOR | 1 |
| VIVID BETTA | 1 |
| WAH DESMOND | 1 |
| WAK YIM | 1 |
| WAN AZMAN | 1 |
| WAN BETTA PD | 1 |
| WAN FAIQ | 1 |
| WAN KSN | 1 |
| WANIE FAREZZ | 1 |
| WEE LIANG | 1 |
| WIN BETTA | 1 |
| X BETTA | 1 |
| XERA BETTA | 1 |
| XIANG SP BETTA | 1 |