Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| ITF Thailand F4 | 2018/09/25 04:30 | Abhinav Sanjeev Shanmugam v Singh, Karunuday | 2-6,2-6 |
| ITF Thailand F3 | 2018/09/06 02:00 | Wishaya Trongcharoenchaikul v Singh, Karunuday | 2-6,7-6,6-3 |
| ITF Thailand F3 | 2018/09/05 02:00 | Navasirisomboon, Jirat v Singh, Karunuday | 3-6,4-6 |
| ITF Thailand F3 | 2018/09/04 04:10 | Kelsey Stevenson v Singh, Karunuday | 3-6,3-6 |
| ITF Thailand F2 | 2018/08/27 07:05 | Du Toit, Lance-Pierre v Singh, Karunuday | 3-6,6-4,6-4 |
| ITF Thailand F1 | 2018/08/22 02:00 | Mousley, Bradley v Singh, Karunuday | 4-6,6-3,7-6 |
| ITF Thailand F1 | 2018/08/21 02:00 | Chiu, Yu Hsiang v Singh, Karunuday | 3-6,1-6 |
| ITF Indonesia F3 | 2018/08/09 03:30 | Beale, Jeremy v Singh, Karunuday | 7-5,6-7,6-3 |
| Challenger Kaohsiung | 2018/09/16 03:00 | Sugita, Yuichi v Jumpei Yamasaki | 6-2,7-5 |
| Challenger Shanghai | 2018/09/09 03:00 | Tung-Lin Wu v Jumpei Yamasaki | 6-2,6-2 |
| Challenger Shanghai | 2018/09/08 03:00 | Abhinav Sanjeev Shanmugam v Jumpei Yamasaki | 4-6,7-6,3-6 |
| ITF Korea F5 | 2018/08/21 03:00 | Jumpei Yamasaki v Kwon, OH-Hee | 4-6,4-6 |
| ITF Korea F5 | 2018/08/20 01:00 | Jumpei Yamasaki v Park, Jungwon | 6-4,6-0 |
| ITF Korea F5 | 2018/08/18 02:00 | Jumpei Yamasaki v Kim, Dukyoung | 6-4,6-4 |
| Challenger Gwangju Qual | 2018/08/12 01:30 | He, Yecong v Jumpei Yamasaki | 6-2,6-4 |
| Challenger Gwangju Qual | 2018/08/11 01:30 | Fajing Sun v Jumpei Yamasaki | 1-6,6-2,2-6 |