Stadium: Court 2 Round: 26
| ITF M15 Anning | 2019/01/02 02:00 | Ruikai Wang v Na, Jung-Woong | 2-6,2-6 |
| ITF Thailand F9 | 2018/11/12 03:00 | Spec, Matic v Na, Jung-Woong | 2-6,6-3,6-2 |
| ITF Thailand F9 | 2018/11/11 07:30 | Kaewsuto, Chayanon v Na, Jung-Woong | 1-6,6-3,3-6 |
| ITF Thailand F8 | 2018/11/06 05:00 | Na, Jung-Woong v Navasirisomboon, Jirat | 6-2,3-6,1-6 |
| ITF Thailand F8 | 2018/11/05 02:00 | Prechtel, Sebastian v Na, Jung-Woong | 6-3,0-6,6-7 |
| ITF Thailand F8 | 2018/11/04 04:30 | Na, Jung-Woong v Mcdaniels, Mitchell Thomas | 6-4,6-2 |
| ITF Thailand F8 | 2018/11/03 02:00 | Noikor, Noppadol v Na, Jung-Woong | 0-6,1-6 |
| ITF Thailand F7 | 2018/11/01 03:50 | Kravchuk, Konstantin v Na, Jung-Woong | 3-6,6-3,6-4 |
| ITF M15 Anning | 2019/01/01 03:30 | Nitin Kumar Sinha v Moritani, Soichiro | 6-1,6-7,6-3 |
| Challenger - Pune | 2018/11/17 06:00 | Nitin Kumar Sinha v Hossam, Youssef | 3-6,4-6 |
| Challenger Bangalore | 2018/11/10 10:35 | Nitin Kumar Sinha v Lucas Gerch | 3-6,4-6 |
| ITF Thailand F8 | 2018/11/04 04:30 | Dubinsky, Vladislav v Nitin Kumar Sinha | 6-4,6-3 |
| ITF Vietnam F5 | 2018/10/30 03:00 | Robert Strombachs v Nitin Kumar Sinha | 6-1,6-4 |
| ITF Vietnam F5 | 2018/10/28 05:30 | Nitin Kumar Sinha v Bun, Kenny | 6-2,6-3 |
| ITF Vietnam F5 | 2018/10/27 06:00 | Nitin Kumar Sinha v Our, Sarith | 6-1,6-0 |
| ITF Vietnam F4 | 2018/10/24 02:30 | Nitin Kumar Sinha v Pungliya, Jayesh | 6-2,3-6,3-6 |