Estádio: Court 9 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Nishi-Tama | 2019/03/05 01:00 | Aoran Wang v Natthasith Kunsuwan | 6-4,6-4 |
| Challenger - Banguecoque | 2019/02/11 06:25 | Natthasith Kunsuwan v David Perez Sanz | 2-6,4-6 |
| ITF - M25 Hong Kong | 2019/01/01 03:35 | Kuan-Yi Lee v Natthasith Kunsuwan | 6-2,6-3 |
| ITF - Hong Kong F3 | 2018/12/24 02:00 | Congsup Congcar v Natthasith Kunsuwan | 6-3,7-6 |
| ITF - Tailândia F9 | 2018/11/12 04:30 | Natthasith Kunsuwan v Robert Strombachs | 2-6,0-6 |
| ITF - Tailândia F8 | 2018/11/03 06:00 | Yeongseok Jeong v Natthasith Kunsuwan | 6-2,4-6,6-4 |
| Challenger - Shenzhen 2 | 2018/10/27 07:30 | Saketh Myneni v Natthasith Kunsuwan | 6-4,7-5 |
| ITF - Tailândia F6 | 2018/10/08 02:30 | Natthasith Kunsuwan v Daisuke Sumizawa | 2-6,2-6 |
| ITF - China F12 - Qualificação | 2017/07/08 03:00 | Jie Cui v Yaojie Zeng | 6-0,6-1 |
| ITF - China F11 - Qualificação | 2017/07/01 02:00 | Yaojie Zeng v Aoran Wang | 2-6,0-6 |