Stadium: Court B Round: 26
| ITF Thailand F5 | 2018/10/03 03:40 | Saito, Takashi v Navasirisomboon, Jirat | 7-5,6-1 |
| ITF Thailand F8 | 2018/11/06 05:00 | Na, Jung-Woong v Navasirisomboon, Jirat | 6-2,3-6,1-6 |
| ITF Thailand F7 | 2018/10/29 05:35 | Fufygin, Mikhail v Navasirisomboon, Jirat | 6-4,6-7,6-1 |
| Thailande F6, Qualifications Simples | 2018/10/10 03:00 | Navasirisomboon, Jirat v Takeuchi, Kento (1987) | 3-6,4-6 |
| Thailande F6, Qualifications Simples | 2018/10/09 02:30 | Pumjit, Akanit v Navasirisomboon, Jirat | 3-6,7-6,2-6 |
| ITF Thailand F5 | 2018/10/03 03:40 | Saito, Takashi v Navasirisomboon, Jirat | 7-5,6-1 |
| ITF Thailand F5 | 2018/10/02 03:00 | Smola, Maciej v Navasirisomboon, Jirat | 3-6,5-7 |
| ITF Thailand F4 | 2018/09/25 05:45 | Sidharth Rawat v Navasirisomboon, Jirat | 4-6,6-2,6-3 |
| ITF Thailand F3 | 2018/09/05 02:00 | Navasirisomboon, Jirat v Singh, Karunuday | 3-6,4-6 |
| ITF Thailand F8 | 2018/11/05 08:55 | Isarow, Pruchya v Saito, Takashi | 3-6,4-6 |
| Thailande F6, Qualifications Simples | 2018/10/11 03:00 | Saito, Takashi v Spec, Matic | 4-6,7-6,6-7 |
| Thailande F6, Qualifications Simples | 2018/10/09 05:00 | Saito, Takashi v Susanto, David Agung | 6-2,6-1 |
| ITF Thailand F5 | 2018/10/04 04:30 | Saito, Takashi v Kelsey Stevenson | 4-6,6-7 |
| ITF Thailand F5 | 2018/10/03 03:40 | Saito, Takashi v Navasirisomboon, Jirat | 7-5,6-1 |
| ITF Thailand F5 | 2018/10/01 04:00 | Saito, Takashi v Congsup Congcar | 7-6,1-6,6-4 |
| Challenger Kaohsiung | 2018/09/15 07:45 | Saito, Takashi v Yan Bai | 3-6,3-6 |
| ITF Thailand F3 | 2018/09/06 02:00 | Moritani, Soichiro v Saito, Takashi | 7-5,6-2 |