Stadium: Court A Round: 44
| ITF Thailand F4 | 2016/12/10 04:30 | Natthasith Kunsuwan v Nutdanai Sincharoenwattana | 6-2,6-2 |
| ITF Indonesia F3 Qual | 2018/08/04 07:00 | Natthasith Kunsuwan v Jirat Navasirisomboon | 4-6,6-3,1-6 |
| 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 Singapore F1 | 2018/05/12 04:00 | Yuttana Charoenphon v Nutdanai Sincharoenwattana | 3-6,7-5,6-2 |
| ITF Turkey F9 | 2018/03/03 07:00 | Daisuke Sumizawa v Nutdanai Sincharoenwattana | 6-1,7-6 |
| ITF Thailand F12 Qual | 2017/12/09 03:00 | Nutdanai Sincharoenwattana v Palaphoom Kovapitukted | 1-6,4-6 |
| ITF Thailand F11 Qual | 2017/12/02 05:00 | Pavle Daljev v Nutdanai Sincharoenwattana | 6-0,6-2 |
| ITF Thailand F10 Qual | 2017/11/25 05:00 | Nutdanai Sincharoenwattana v Chanchai Sookton-Eng | 3-6,1-6 |
| Challenger Hua Hin Qual | 2017/11/18 05:30 | Marinko Matosevic v Nutdanai Sincharoenwattana | 6-0,6-0 |
| ITF Vietnam F2 | 2017/11/11 03:00 | Nutdanai Sincharoenwattana v Jamie Asanee Praditngam | 1-6,0-6 |
| ITF Vietnam F1 | 2017/11/04 05:00 | Socrates Leon Tsoronis v Nutdanai Sincharoenwattana | 6-0,6-2 |