Stadium: Court 6 Round: 44 Ground: Hardcourt outdoor
| ITF Vietnam F5 | 2018/10/29 02:30 | Linus Frost v Worarin Kumthonkittikul | 6-3,6-3 |
| ITF Thailand F6 | 2018/10/07 02:30 | Adrian Andrzejczuk v Worarin Kumthonkittikul | 6-2,7-5 |
| ITF Thailand F5 | 2018/09/29 02:30 | Liran Chen v Worarin Kumthonkittikul | 6-3,6-3 |
| ITF Thailand F4 | 2018/09/24 02:30 | Daisuke Sumizawa v Worarin Kumthonkittikul | 6-7,6-2,6-1 |
| ITF Thailand F4 | 2018/09/23 04:00 | Worarin Kumthonkittikul v Hyung-Chan Lim | 7-5,7-5 |
| ITF Thailand F4 | 2018/09/22 02:30 | Worarin Kumthonkittikul v Yani Kimon Doumanis | 6-2,6-2 |
| ITF Thailand F3 | 2018/09/02 02:00 | Worarin Kumthonkittikul v Pol Wattanakul | 1-6,2-6 |
| ITF Thailand F2 | 2018/08/25 04:00 | Tsung-Hao Huang v Worarin Kumthonkittikul | 6-3,7-6 |
| ITF Thailand F8 | 2018/11/03 02:00 | Yuttana Charoenphon v Kittirat Kerdlaphee | 2-6,2-6 |
| ITF Thailand F7 | 2018/10/28 03:00 | Wei-De Lin v Yuttana Charoenphon | 6-4,6-4 |
| ITF Thailand F6 | 2018/10/08 03:30 | Yuttana Charoenphon v Krittin Koaykul | 6-7,2-6 |
| ITF Thailand F5 | 2018/10/03 02:30 | Alexander Igoshin v Yuttana Charoenphon | 6-2,6-1 |
| ITF Thailand F4 | 2018/09/25 07:50 | Kento Takeuchi v Yuttana Charoenphon | 6-4,6-3 |
| ITF Thailand F3 | 2018/09/02 02:00 | Roy Hobbs v Yuttana Charoenphon | 7-6,6-1 |
| ITF Thailand F2 | 2018/08/27 02:45 | Yuttana Charoenphon v Krittin Koaykul | 6-4,3-6,0-6 |
| ITF Thailand F2 | 2018/08/26 03:30 | Tyler Mercier v Yuttana Charoenphon | 6-3,3-6,3-6 |