Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF Japan F8 | 2018/06/14 01:00 | Yuya Kibi v Yunosuke Tanaka | 6-3,6-2 |
| ITF Japan F8 | 2018/06/12 01:00 | Naru Shirafuji v Yunosuke Tanaka | 4-6,2-6 |
| ITF Japan F8 | 2018/06/11 00:00 | Yunosuke Tanaka v Tomohiro Masabayashi | 6-1,3-6,6-2 |
| ITF Japan F8 | 2018/06/09 06:40 | Yunosuke Tanaka v James Trotter | 7-6,6-4 |
| ITF Japan F7 Qual | 2018/06/02 01:00 | Yunosuke Tanaka v Takuya Kaneko | 4-6,5-7 |
| ITF Japan F4 | 2018/03/24 00:00 | Yunosuke Tanaka v Shinta Fujii | 6-4,2-6,6-7 |
| ITF Japan F3 | 2018/03/17 00:30 | Yuta Kawahashi v Yunosuke Tanaka | 6-3,6-1 |
| ITF Japan F2 | 2018/03/15 01:00 | Yunosuke Tanaka v Seong Chan Hong | 3-6,3-6 |
| ITF M15 Nishi-Tama | 2019/03/10 01:00 | Shintaro Imai v Ji Sung Nam | 6-2,6-2 |
| ITF M15 Nishi-Tama | 2019/03/09 01:00 | Jumpei Yamasaki v Ji Sung Nam | 2-6,1-6 |
| ITF M15 Nishi-Tama | 2019/03/08 06:25 | Hiroyasu Ehara v Ji Sung Nam | 4-6,2-6 |
| ITF M15 Nishi-Tama | 2019/03/06 04:00 | Takuto Niki v Ji Sung Nam | 4-6,2-6 |
| Challenger Da Nang | 2019/01/06 08:35 | Ji Sung Nam v N.Sriram Balaji | 6-7,6-7 |
| Challenger Kobe | 2018/11/12 06:35 | Nam Hoang Ly v Ji Sung Nam | 6-7,7-6,6-2 |
| Challenger Shenzhen 2 | 2018/10/28 02:30 | Yaraslav Shyla v Ji Sung Nam | 7-6,2-6,6-3 |
| Challenger Shenzhen 2 | 2018/10/27 02:00 | Yuanfeng Li v Ji Sung Nam | 4-6,1-6 |