Tournament Name: PTT - ITF Junior J4, Week Of: 18-October-2021
| S.No. | First Name | Family Name | Province |
| 1 | Setthawut | SINPIBARN | BKK |
| S.No. | First Name | Family Name | Province |
| 1 | Thadpong | KAMONPANYAKORN | BRM |
| 2 | Phopthum | SRIWONG | CBI |
| 3 | Dhanunai | PHUKESORN | PTE |
| 4 | Patchara | SUKLIAN | PKT |
| S.No. | First Name | Family Name | Province |
| 1 | Samatchaya | ORUNGROTE | BKK |
| 2 | Yosita | SRIPORN | SNI |