Stadium: C Round: 62 Ground: Hardcourt outdoor
| ITF China F11 | 2018/07/17 01:00 | Natthasith Kunsuwan v Mitchell Thomas McDaniels | 6-4,1-6,1-6 |
| ITF China F10 Qual | 2018/07/07 05:00 | Natthasith Kunsuwan v Kousuke Ogura | 6-7,4-6 |
| ITF China F9 | 2018/07/04 03:00 | Natthasith Kunsuwan v Seong Chan Hong | 3-6,4-6 |
| ITF China F9 | 2018/07/03 09:45 | Natthasith Kunsuwan v Masayoshi Ono | 6-7,6-4,6-3 |
| ITF China F8 | 2018/06/05 05:30 | Di Wu v Natthasith Kunsuwan | 6-1,6-3 |
| ITF China F7 | 2018/05/30 02:30 | Natthasith Kunsuwan v Wishaya Trongcharoenchaikul | 4-6,3-6 |
| ITF China F7 | 2018/05/29 03:35 | Natthasith Kunsuwan v Tianjia Guo | 6-1,6-3 |
| ITF China F7 Qual | 2018/05/28 03:15 | Natthasith Kunsuwan v Bang Shuo Yin | 2-6,6-3,6-4 |
| ITF Malaysia F3 | 2018/07/18 04:30 | Cheong-Eui Kim v Jirat Navasirisomboon | 6-2,6-4 |
| ITF Malaysia F3 | 2018/07/17 02:00 | Aaron Addison v Jirat Navasirisomboon | 6-0,3-6,0-6 |
| ITF Malaysia F2 | 2018/07/09 03:00 | Naru Shirafuji v Jirat Navasirisomboon | 2-6,6-2,7-5 |
| ITF Malaysia F2 | 2018/07/08 08:00 | Jirat Navasirisomboon v Anurag Nenwani | 6-4,6-2 |
| ITF Malaysia F2 | 2018/07/08 02:00 | Jirat Navasirisomboon v Amit Beniwal | 6-3,6-3 |
| ITF Malaysia F1 Qual | 2018/07/01 10:00 | Jirat Navasirisomboon v Lakshit Sood | 2-6,1-6 |
| ITF Sri Lanka F3 | 2018/06/27 04:00 | Abhinav Sanjeev Shanmugam v Jirat Navasirisomboon | 6-4,6-3 |
| ITF Sri Lanka F3 | 2018/06/25 07:00 | Shunsuke Wakita v Jirat Navasirisomboon | 4-6,6-7 |