Stadium: Court 1 Round: 25
| ITF Thailand F1 | 2018/08/20 06:25 | Natthasith Kunsuwan v de Beer, Amaury | 6-0,6-2 |
| ITF Thailand F1 | 2018/08/19 02:00 | Natthasith Kunsuwan v Sincharoenwattana, Nutdanai | 6-0,6-3 |
| ITF Indonesia F3 Qual | 2018/08/04 07:00 | Natthasith Kunsuwan v Navasirisomboon, Jirat | 4-6,6-3,1-6 |
| ITF China F11 | 2018/07/17 01:00 | Natthasith Kunsuwan v Mcdaniels, Mitchell Thomas | 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 Hong, Seong Chan | 3-6,4-6 |
| ITF China F9 | 2018/07/03 09:45 | Natthasith Kunsuwan v Ono, Masayoshi | 6-7,6-4,6-3 |
| ITF China F8 | 2018/06/05 05:30 | Wu, Di v Natthasith Kunsuwan | 6-1,6-3 |
| ITF Thailand F1 | 2018/08/20 03:10 | Ng, Hao Yuan v Mohd Adam Das, Shamirul Shahril | 1-6,6-3,3-6 |
| ITF Thailand F1 | 2018/08/19 06:45 | Ng, Hao Yuan v Byreddy, Sai Saran Reddy | 6-1,7-6 |
| ITF Indonesia F3 Qual | 2018/08/04 07:30 | Pungliya, Jayesh v Ng, Hao Yuan | 6-2,6-3 |
| ITF Indonesia F2 | 2018/07/31 03:30 | Ng, Hao Yuan v Goveas, Aryan | 2-6,5-7 |
| ITF Indonesia F1 | 2018/07/26 05:15 | Kaito Uesugi v Ng, Hao Yuan | 6-1,6-4 |
| ITF Indonesia F1 | 2018/07/24 08:00 | Huang, Yu Shiang v Ng, Hao Yuan | 4-6,4-6 |
| ITF Malaysia F3 | 2018/07/17 04:00 | Ng, Hao Yuan v Pervolarakis, Michail | 1-6,2-6 |
| ITF Sri Lanka F2 | 2018/06/17 07:00 | Ng, Hao Yuan v Abdel-Aziz, Mohamed | 2-6,4-6 |