Underworld Betta Hunter 2021
| Top Participant | Entries |
|---|---|
| XXX BETTA | 1 |
| YAN AIDIT | 1 |
| YANG RL | 1 |
| YC BETTA | 1 |
| YIN BETTA | 1 |
| YIONG | 1 |
| YMA BETTA (ASYRAF GADGET) | 1 |
| YO PERODUA | 1 |
| YON ALPINESTAR | 1 |
| YS BETTA | 1 |
| YTF BETTA | 1 |
| YUHANA S'MOON | 1 |
| YUMI BETTA | 1 |
| YUNAN | 1 |
| YUS BETTA (KBG) | 1 |
| YUSNIZAM | 1 |
| YUSOF (M7WF) | 1 |
| YUSOF M7WF | 1 |
| YUSRI | 1 |
| YUSRI HAFIZ | 1 |