| ITF China F1 | 2014/03/04 02:00 | Na, Jung-Woong v Kim, Cheong-Eui | 6-7,3-6 |
| ITF Korea F4 | 2017/06/20 02:20 | Na, Jung-Woong v Park, Sung Jun | 6-4,6-3 |
| ITF Korea F3 | 2017/06/15 01:00 | Song, Min-Kyu v Na, Jung-Woong | 6-1,6-1 |
| ITF Korea F3 | 2017/06/13 04:40 | Na, Jung-Woong v Jung, Ki-Su | 6-4,6-1 |
| ITF Korea F2 | 2017/06/07 05:45 | Jeamoon Lee v Na, Jung-Woong | 7-6,6-3 |
| ITF Korea F2 Qual | 2017/06/05 03:00 | Na, Jung-Woong v Jang, Woo Hyeok | 6-4,6-1 |
| ITF Korea F2 Qual | 2017/06/04 03:00 | Na, Jung-Woong v Kim, Hyeong Don | 6-0,6-3 |
| ITF Korea F2 Qual | 2017/06/03 02:00 | Na, Jung-Woong v Park, Sung Jun | 6-4,6-3 |
| ITF Korea F1 | 2017/06/01 03:05 | Nguyen, Daniel v Na, Jung-Woong | 6-2,6-4 |
| ITF Korea F4 | 2017/06/20 04:30 | Kim, Sang Yeop v Kim, Cheong-Eui | 0-6,2-6 |
| ITF Korea F3 | 2017/06/18 03:25 | Kim, Cheong-Eui v Lee, Tae-Woo | 7-6,6-4 |
| ITF Korea F3 | 2017/06/17 02:00 | Kim, Cheong-Eui v Chung, Hong | 6-1,6-3 |
| ITF Korea F3 | 2017/06/16 02:00 | Kim, Cheong-Eui v Jeong, Young-Hoon | 6-3,6-0 |
| ITF Korea F3 | 2017/06/15 03:00 | Kim, Cheong-Eui v Ku Keon Kang | 6-3,6-1 |
| ITF Korea F3 | 2017/06/14 01:00 | Kim, Cheong-Eui v Lee, Dong-Kyu | 1-6,6-4,6-3 |
| ITF Korea F2 | 2017/06/10 02:00 | Kim, Cheong-Eui v Jeamoon Lee | 6-1,5-7,4-6 |
| ITF Korea F2 | 2017/06/09 02:00 | Sin, Dong-Hak v Kim, Cheong-Eui | 4-6,3-6 |