Stadium: Court 3 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Nonthaburi | 2019/07/30 04:50 | Noppadol Noikor v Natthasith Kunsuwan | 6-4,6-4 |
| ITF M25 Nonthaburi | 2019/07/29 04:00 | Natthasith Kunsuwan v Congsup Congcar | 6-4,7-6 |
| ITF M25 Nonthaburi | 2019/07/22 02:30 | Dusty H. Boyer v Natthasith Kunsuwan | 6-4,6-3 |
| ITF M25 Nonthaburi | 2019/05/29 04:35 | Natthasith Kunsuwan v Kasidit Samrej | 6-4,3-6,5-7 |
| ITF M25 Nonthaburi | 2019/05/28 04:40 | Natthasith Kunsuwan v Michael Mat'chand | 6-4,6-3 |
| ITF M25 Nonthaburi | 2019/05/22 03:00 | Natthasith Kunsuwan v Jayden Court | 7-5,3-6,6-7 |
| ITF M25 Luan | 2019/05/15 07:40 | Rimpei Kawakami v Natthasith Kunsuwan | 6-4,6-1 |
| ITF M25 Luan | 2019/05/14 03:25 | Natthasith Kunsuwan v Guan Kai Wang | 6-0,6-0 |
| ITF M15 Anseong | 2019/06/24 03:00 | Sung Jun Park v Geun Jun Kim | 3-6,3-6 |
| ITF M15 Gimcheon | 2019/06/14 02:00 | Sung Jun Park v Thomas Fancutt | 1-6,6-3,3-6 |
| ITF M15 Gimcheon | 2019/06/13 01:30 | Seong-Gook Oh v Sung Jun Park | 6-1,5-7,4-6 |
| ITF M15 Gimcheon | 2019/06/11 01:00 | Chanchai Sookton-Eng v Sung Jun Park | 3-6,2-6 |
| ITF M15 Gimcheon | 2019/06/10 01:00 | Dong Ju Kim v Sung Jun Park | 3-6,4-6 |
| ITF M15 Daegu | 2019/06/05 04:50 | Seong-Gook Oh v Sung Jun Park | 6-4,6-7,7-5 |
| ITF M15 Daegu | 2019/06/04 02:55 | Hyung-Chan Lim v Sung Jun Park | 6-0,2-6,10-12 |
| ITF M15 Daegu | 2019/06/03 01:00 | Sung Jun Park v Seoung Hun Lee | 6-2,6-0 |