stadio: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/10/03 09:00 | Aaditya Tewari v Preston Connor | 1-6,7-5,10-5 |
| ITF M15 Monastir | 2021/09/27 08:00 | Geni Inoue v Natthasith Kunsuwan | 6-2,6-0 |
| ITF M15 Monastir | 2021/09/21 08:00 | Daisuke Sumizawa v Natthasith Kunsuwan | 6-2,3-6,7-10 |
| ITF M15 Monastir | 2021/09/14 08:00 | Paras Dahiya v Natthasith Kunsuwan | 7-5,6-2 |
| ITF M15 Monastir | 2021/09/13 08:00 | Andres Haefele v Natthasith Kunsuwan | 1-6,4-6 |
| ITF M15 Doha | 2020/03/11 13:55 | Daniil Glinka v Natthasith Kunsuwan | 6-4,5-7,6-4 |
| ITF M15 Doha | 2020/03/10 12:00 | Natthasith Kunsuwan v Mihnea L.S. Turcu | 7-6,6-3 |
| ITF M25 Nonthaburi | 2020/02/03 04:15 | Cheong-Eui Kim v Natthasith Kunsuwan | 7-6,6-2 |
| ITF M25 Nonthaburi | 2020/02/02 02:30 | Natthayut Nithithananont v Natthasith Kunsuwan | 5-7,1-6 |