Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| Challenger Seoul Qual | 2018/04/28 03:05 | Jung-Woong Na v Tae-Woo Lee | 6-1,6-3 |
| ITF M15 Anseong | 2019/06/26 01:00 | Jung-Woong Na v Seungri Choi | 6-1,6-1 |
| ITF M15 Gimcheon | 2019/06/19 01:00 | Seong Taek Im v Jung-Woong Na | 0-6,0-6 |
| ITF M15 Gimcheon | 2019/06/13 02:30 | Jean Thirouin v Jung-Woong Na | 6-2,6-3 |
| ITF M15 Gimcheon | 2019/06/12 04:05 | Jung-Woong Na v Cheong-Eui Kim | 6-2,6-2 |
| ITF M15 Daegu | 2019/06/09 03:25 | Jung-Woong Na v Seong Chan Hong | 0-6,3-6 |
| ITF M15 Daegu | 2019/06/08 05:30 | Cheong-Eui Kim v Jung-Woong Na | 2-6,1-6 |
| ITF M15 Daegu | 2019/06/08 01:00 | Uisung Park v Jung-Woong Na | 1-6,4-6 |
| ITF M15 Daegu | 2019/06/06 02:00 | Jung-Woong Na v Seita Watanabe | 6-3,6-2 |
| ITF M15 Anseong | 2019/06/26 02:20 | Tae-Woo Lee v Seon Yong Han | 7-6,5-7,6-4 |
| ITF M15 Gimcheon | 2019/06/18 01:00 | Tae-Woo Lee v Sung Hun Kim | 1-6,6-0,6-10 |
| ITF M15 Gimcheon | 2019/06/17 02:45 | Tae-Woo Lee v Kangjae Kim | 6-3,6-1 |
| ITF M15 Gimcheon | 2019/06/12 01:00 | Seon Yong Han v Tae-Woo Lee | 6-2,6-4 |
| ITF M15 Daegu | 2019/06/04 04:35 | Uisung Park v Tae-Woo Lee | 6-2,6-3 |
| ITF Korea F6 | 2018/08/31 03:00 | Sanhui Shin v Tae-Woo Lee | 6-4,6-3 |
| ITF Korea F6 | 2018/08/30 03:00 | Ku Keon Kang v Tae-Woo Lee | 1-6,5-7 |
| ITF Korea F6 | 2018/08/28 02:00 | Jae Won Yun v Tae-Woo Lee | 1-6,2-6 |