Stadium: Court 2 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Anseong | 2019/06/28 03:00 | Na, Jung-Woong v Kim, Cheong-Eui | 2-6,2-6 |
| Gimcheon, Singles M-ITF-KOR-03A | 2019/06/12 04:05 | Na, Jung-Woong v Kim, Cheong-Eui | 6-2,6-2 |
| ITF - M15 Daegu | 2019/06/08 05:30 | Kim, Cheong-Eui v Na, Jung-Woong | 2-6,1-6 |
| ITF Korea F4 | 2017/06/22 02:00 | Na, Jung-Woong v Kim, Cheong-Eui | 6-4,2-6,1-6 |
| ITF China F1 | 2014/03/04 02:00 | Na, Jung-Woong v Kim, Cheong-Eui | 6-7,3-6 |