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