Round: 44 Ground: Hardcourt outdoor
| ITF Thailand F3 | 2016/09/05 03:00 | Issei Okamura v Natthasith Kunsuwan | 6-2,6-4 |
| Challenger Bangkok 4 | 2016/08/27 04:00 | Natthasith Kunsuwan v Toshihide Matsui | 0-6,4-6 |
| ITF Thailand F4 | 2016/08/21 03:00 | Ken Onishi v Natthasith Kunsuwan | 6-4,6-2 |
| ITF Thailand F4 | 2016/08/20 06:00 | Natthasith Kunsuwan v Pedro Scocuglia | 5-7,7-6,6-1 |
| ITF Thailand F9 | 2015/11/21 05:00 | Natthasith Kunsuwan v Vorachon Rakpuangchon | 1-6,4-6 |
| ITF Thailand F9 | 2015/08/08 03:00 | Chayanon Kaewsuto v Natthasith Kunsuwan | 6-3,6-2 |
| ITF Thailand F9 | 2015/06/13 05:00 | Dae-Hee Lee v Natthasith Kunsuwan | 6-0,6-1 |