Stadium: Court 5 Round: 44 Ground: Hardcourt outdoor
| ITF Thailand F2 | 2018/08/26 03:30 | Rimpei Kawakami v Tsung-Hao Huang | 6-2,5-7,7-5 |
| ITF Thailand F1 | 2018/08/22 02:00 | Pruchya Isarow v Rimpei Kawakami | 4-6,6-3,6-3 |
| ITF Thailand F1 | 2018/08/20 06:50 | Rimpei Kawakami v Chanchai Sookton-Eng | 6-2,6-1 |
| ITF Indonesia F2 | 2018/07/31 03:45 | Quentin Robert v Rimpei Kawakami | 6-4,3-6,6-3 |
| ITF Guam F1 | 2018/06/21 01:30 | Sam Ryan Ziegann v Rimpei Kawakami | 4-6,3-6 |
| ITF Guam F1 | 2018/06/19 00:00 | Rimpei Kawakami v Jake Delaney | 6-1,6-1 |
| ITF Japan F8 | 2018/06/15 04:15 | Rimpei Kawakami v Rio Noguchi | 4-6,2-6 |
| ITF Japan F8 | 2018/06/14 03:00 | Rimpei Kawakami v Kazuma Kawachi | 6-1,2-6,7-6 |
| ITF Thailand F1 | 2018/08/21 08:40 | Pol Wattanakul v Thanapet Chanta | 4-6,4-6 |
| ITF Thailand F1 | 2018/08/20 03:50 | Pol Wattanakul v Charles Roberts | 6-3,6-1 |
| ITF Thailand F1 | 2018/08/19 04:45 | Pol Wattanakul v Yuttana Charoenphon | 6-4,3-6,6-3 |
| ITF USA F8 Qual | 2018/03/17 22:30 | Or Ram-Harel v Pol Wattanakul | 6-1,6-2 |
| Challenger Bangkok | 2018/01/09 06:30 | Marcel Granollers v Pol Wattanakul | 6-2,6-0 |
| ITF Thailand F11 | 2017/12/04 07:10 | Pol Wattanakul v Cheong-Eui Kim | 2-6,6-7 |
| ITF Thailand F10 | 2017/11/27 06:20 | Miliaan Niesten v Pol Wattanakul | 6-4,3-6,7-5 |
| Challenger Hua Hin Qual | 2017/11/20 08:30 | Marinko Matosevic v Pol Wattanakul | 6-2,6-2 |