Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF - M25 Nonthaburi | 2019/07/30 02:30 | Takashi Saito v Worarin Kumthonkittikul | 6-2,6-4 |
| ITF - M25 Nonthaburi | 2019/07/29 02:30 | Kittirat Kerdlaphee v Worarin Kumthonkittikul | 3-6,6-2,5-10 |
| ITF - M25 Nonthaburi | 2019/07/23 02:30 | Worarin Kumthonkittikul v Kunal Anand | 6-7,4-6 |
| ITF - M25 Nonthaburi | 2019/07/22 02:30 | Shamirul S Mohd Adam Das v Worarin Kumthonkittikul | 4-6,6-2,6-10 |
| ITF - M15 Singapur | 2019/06/12 06:30 | Worarin Kumthonkittikul v Christian Didier Chin | 6-3,6-7,1-6 |
| ITF - M25 Nonthaburi | 2019/05/28 03:00 | Worarin Kumthonkittikul v Isaac Becroft | 3-6,2-6 |
| ITF - M25 Nonthaburi | 2019/05/27 03:00 | Worarin Kumthonkittikul v Odeda Muhammad Arazza | 6-1,6-1 |
| ITF - M25 Nonthaburi | 2019/05/22 04:45 | Kelsey Stevenson v Worarin Kumthonkittikul | 6-2,6-3 |
| ITF - M15 Hua Hin | 2019/08/20 03:00 | Congsup Congcar v Sung Jun Park | 4-6,1-6 |
| ITF - M15 Hua Hin | 2019/08/19 06:25 | Natthasith Kunsuwan v Sung Jun Park | 0-6,4-6 |
| 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 |