Stadium: Centre Court Round: 25 Ground: Hardcourt outdoor
| Challenger Gwangju | 2019/05/13 02:00 | Tsung-Hua Yang v Jung-Woong Na | 6-3,7-6 |
| ITF M15 Anning | 2019/01/15 03:50 | Jung-Woong Na v Weiqiang Zheng | 0-6,6-2,4-6 |
| ITF M15 Anning | 2019/01/08 02:30 | Jung-Woong Na v Jie Cui | 2-6,6-3,4-6 |
| ITF M15 Anning | 2019/01/05 04:45 | Eric Vanshelboim v Jung-Woong Na | 6-7,7-5,6-4 |
| ITF M15 Anning | 2019/01/04 04:25 | Tao Mu v Jung-Woong Na | 5-7,5-7 |
| ITF M15 Anning | 2019/01/03 03:55 | Jung-Woong Na v Nitin Kumar Sinha | 6-4,6-4 |
| ITF M15 Anning | 2019/01/02 02:00 | Ruikai Wang v Jung-Woong Na | 2-6,2-6 |
| ITF Thailand F9 | 2018/11/12 03:00 | Matic Spec v Jung-Woong Na | 2-6,6-3,6-2 |
| Davis Cup | 2018/09/15 05:35 | Yong-Kyu Lim v Michael Venus | 7-6,6-4 |
| ITF Korea F1 | 2018/06/10 03:00 | Yong-Kyu Lim v Jeamoon Lee | 6-4,7-6 |
| ITF Korea F1 | 2018/06/09 01:00 | Cheong-Eui Kim v Yong-Kyu Lim | 2-6,3-6 |
| ITF Korea F1 | 2018/06/08 02:00 | Ji Sung Nam v Yong-Kyu Lim | 1-6,2-6 |
| ITF Korea F1 | 2018/06/07 02:35 | Minjong Park v Yong-Kyu Lim | 5-7,1-6 |
| ITF Korea F1 | 2018/06/06 03:20 | Yong-Kyu Lim v Min-Kyu Song | 4-6,6-4,6-1 |
| Challenger Busan Qual | 2018/05/12 04:05 | Yong-Kyu Lim v Wishaya Trongcharoenchaikul | 7-6,6-7,2-6 |
| Challenger Gimcheon Qual | 2018/05/06 04:30 | Yong-Kyu Lim v Wishaya Trongcharoenchaikul | 6-2,6-7,4-6 |