Stadium: Court 1 Round: 28 Ground: Hardcourt outdoor
| 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 |
| ITF - M15 Daegu | 2019/06/08 01:00 | Kim, Cheong-Eui v Sora Fukuda | 6-3,5-7,6-2 |
| ITF - M15 Daegu | 2019/06/06 02:00 | Kim, Cheong-Eui v Kwon, OH-Hee | 4-6,6-3,6-0 |
| ITF - M15 Daegu | 2019/06/05 03:45 | Kim, Cheong-Eui v Minjong Park | 6-4,6-3 |
| Challenger - Gwangju | 2019/05/14 02:00 | Akira Santillan v Kim, Cheong-Eui | 6-4,6-1 |
| Challenger - Busan | 2019/05/06 02:00 | Banes, Maverick v Kim, Cheong-Eui | 6-1,7-6 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/12 02:55 | Rinky Hijikata v Kim, Cheong-Eui | 6-3,6-1 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/10 07:05 | Sora Fukuda v Kim, Cheong-Eui | 6-3,2-6,3-6 |
| ITF - M15 Kashiwa | 2019/04/05 01:00 | Kim, Cheong-Eui v Jumpei Yamasaki | 4-6,6-3,4-6 |
| ITF - M15 Daegu | 2019/06/08 01:00 | Uisung Park v Na, Jung-Woong | 1-6,4-6 |
| ITF - M15 Daegu | 2019/06/06 02:00 | Na, Jung-Woong v Seita Watanabe | 6-3,6-2 |
| ITF - M15 Daegu | 2019/06/04 04:50 | Na, Jung-Woong v Lim, Yong-Kyu | 6-2,6-3 |
| Challenger - Gwangju | 2019/05/13 02:00 | Yang, Tsung-Hua v Na, Jung-Woong | 6-3,7-6 |
| ITF M15 Anning | 2019/01/15 03:50 | Na, Jung-Woong v Zheng, Weiqiang | 0-6,6-2,4-6 |
| ITF M15 Anning | 2019/01/08 02:30 | Na, Jung-Woong v Jie Cui | 2-6,6-3,4-6 |
| ITF M15 Anning | 2019/01/05 04:45 | Eric Vanshelboim v Na, Jung-Woong | 6-7,7-5,6-4 |
| ITF M15 Anning | 2019/01/04 04:25 | Tao Mu v Na, Jung-Woong | 5-7,5-7 |