| ITF Malaysia F3 | 2018/07/15 02:00 | Nawakarn Khunjan v Bernardo A P E Oliveira | 4-6,3-6 |
| ITF Malaysia F2 | 2018/07/08 03:00 | Quentin Robert v Nawakarn Khunjan | 6-0,6-2 |
| ITF Vietnam F3 | 2018/05/15 04:30 | Niki Kaliyanda Poonacha v Nawakarn Khunjan | 6-4,6-2 |
| ITF Indonesia F8 | 2017/11/28 03:30 | Ti Chen v Nawakarn Khunjan | 6-1,6-1 |
| ITF Indonesia F8 Qual | 2017/11/25 03:00 | Nawakarn Khunjan v Kyler Jirasook | 6-1,7-5 |
| ITF Indonesia F7 | 2017/11/21 05:55 | Nawakarn Khunjan v Christopher Rungkat | 1-6,2-6 |
| ITF Thailand F9 | 2017/10/17 04:45 | Nawakarn Khunjan v Tung-Lin Wu | 1-6,0-6 |
| ITF Thailand F7 Qual | 2017/09/30 02:30 | Nawakarn Khunjan v Sam Matheson | 6-2,4-6,3-6 |