Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF Thailand F5 | 2018/10/01 04:00 | Takashi Saito v Congsup Congcar | 7-6,1-6,6-4 |
| Challenger Kaohsiung | 2018/09/15 07:45 | Takashi Saito v Yan Bai | 3-6,3-6 |
| ITF Thailand F3 | 2018/09/06 02:00 | Soichiro Moritani v Takashi Saito | 7-5,6-2 |
| ITF Thailand F3 | 2018/09/05 04:00 | Yuichi Ito v Takashi Saito | 2-6,6-4,3-6 |
| ITF Thailand F3 | 2018/09/04 06:55 | Palaphoom Kovapitukted v Takashi Saito | 6-4,4-6,2-6 |
| ITF Thailand F2 | 2018/08/29 04:00 | Takashi Saito v Connor Farren | 6-2,6-1 |
| ITF Thailand F2 | 2018/08/28 07:10 | Takashi Saito v Pol Wattanakul | 6-3,3-6,6-3 |
| Challenger Meerbusch Qual | 2018/08/12 14:25 | Takashi Saito v Alexandre Muller | 3-6,0-6 |
| ITF Thailand F5 | 2018/10/02 03:00 | Maciej Smola v Jirat Navasirisomboon | 3-6,5-7 |
| ITF Thailand F4 | 2018/09/25 05:45 | Sidharth Rawat v Jirat Navasirisomboon | 4-6,6-2,6-3 |
| ITF Thailand F3 | 2018/09/05 02:00 | Jirat Navasirisomboon v Karunuday Singh | 3-6,4-6 |
| ITF Thailand F3 | 2018/09/03 03:00 | Chayanon Kaewsuto v Jirat Navasirisomboon | 1-6,4-6 |
| ITF Thailand F2 | 2018/08/29 02:45 | Jirat Navasirisomboon v Ronnie Schneider | 1-6,4-6 |
| ITF Thailand F2 | 2018/08/28 03:35 | Jirat Navasirisomboon v Akanit Pumjit | 6-2,7-6 |
| ITF Thailand F1 | 2018/08/23 05:05 | Jirat Navasirisomboon v Patrik Rikl | 1-6,2-6 |
| ITF Thailand F1 | 2018/08/22 04:40 | Jirat Navasirisomboon v Phongsapak Kerdlaphee | 7-5,6-2 |