Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF Thailand F8 | 2018/11/05 04:30 | Seong Chan Hong v Alexandar Lazarov | 6-4,6-1 |
| ITF Thailand F7 | 2018/11/02 05:30 | Min-Kyu Song v Seong Chan Hong | 6-2,6-3 |
| ITF Thailand F7 | 2018/11/01 02:00 | Seong Chan Hong v Hiroyasu Ehara | 2-6,6-4,6-3 |
| ITF Thailand F7 | 2018/10/31 03:55 | Seong Chan Hong v Bernardo Saraiva | 6-2,6-4 |
| ITF Thailand F7 | 2018/10/30 08:50 | Seong Chan Hong v Siddharth Vishwakarma | 7-6,6-2 |
| Davis Cup | 2018/09/14 02:00 | Seong Chan Hong v Rubin Statham | 6-7,2-6 |
| ITF China F10 | 2018/07/09 05:00 | Seong Chan Hong v Ji Sung Nam | 3-6,3-6 |
| ITF China F9 | 2018/07/07 07:25 | Seong Chan Hong v Ji Hoon Son | 6-7,1-6 |
| Challenger Kobe | 2018/11/13 03:35 | Yasutaka Uchiyama v Shintaro Imai | 3-6,6-3,6-2 |
| ITF Thailand F5 | 2018/10/06 03:30 | Kelsey Stevenson v Shintaro Imai | 6-7,1-6 |
| ITF Thailand F5 | 2018/10/05 04:00 | Jumpei Yamasaki v Shintaro Imai | 2-6,4-6 |
| ITF Thailand F5 | 2018/10/04 04:30 | Felix Corwin v Shintaro Imai | 6-7,4-6 |
| ITF Thailand F5 | 2018/10/03 03:40 | Ren Nakamura v Shintaro Imai | 1-6,2-6 |
| ITF Thailand F5 | 2018/10/02 07:25 | Michal Dembek v Shintaro Imai | 1-6,3-6 |
| ITF Thailand F4 | 2018/09/29 03:00 | Kento Takeuchi v Shintaro Imai | 2-6,6-4,3-6 |
| ITF Thailand F4 | 2018/09/27 02:30 | Soichiro Moritani v Shintaro Imai | 1-6,6-7 |