Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Daegu | 2019/06/04 04:50 | Jung-Woong Na v Yong-Kyu Lim | 6-2,6-3 |
| 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 M15 Daegu | 2019/06/05 03:55 | Seita Watanabe v Issei Okamura | 6-4,7-6 |
| ITF M15 Daegu | 2019/06/04 02:20 | Seita Watanabe v Seung-Hun Shin | 6-0,6-1 |
| ITF M15 Daegu | 2019/06/03 05:00 | Seita Watanabe v Dae-Hee Lee | 6-2,6-0 |
| ITF M15 Tabarka | 2019/05/16 10:30 | Manuel Guinard v Seita Watanabe | 6-3,6-1 |
| ITF M15 Tabarka | 2019/05/15 08:00 | Seita Watanabe v Roman Blokhin | 6-1,6-0 |
| ITF M15 Tabarka | 2019/05/14 08:00 | Lluis Dolz v Seita Watanabe | 0-6,1-6 |
| ITF M15 Tabarka | 2019/05/07 10:35 | Anis Ghorbel v Seita Watanabe | 6-0,6-4 |
| ITF M15 Tabarka | 2019/05/01 08:30 | Seita Watanabe v Anas Fattar | 4-6,6-7 |