Round: 26 Ground: Hardcourt outdoor
| ITF M15 Tsukuba | 2019/03/27 01:00 | Bart Stevens v Yunosuke Tanaka | 6-4,4-6,2-6 |
| ITF M15 Kofu | 2019/03/20 01:00 | Yunosuke Tanaka v Ryota Tanuma | 6-2,3-6,4-6 |
| ITF M15 Kofu | 2019/03/18 05:30 | Yunosuke Tanaka v Tsung-Hao Huang | 6-3,6-3 |
| ITF M15 Kofu | 2019/03/18 00:30 | Bart Stevens v Yunosuke Tanaka | 6-3,5-7,6-10 |
| ITF M15 Nishi-Tokyo | 2019/03/13 03:50 | Yunosuke Tanaka v Ji Sung Nam | 6-4,1-6,5-7 |
| ITF Japón F8 | 2018/06/14 01:00 | Yuya Kibi v Yunosuke Tanaka | 6-3,6-2 |
| ITF Japón F8 | 2018/06/12 01:00 | Naru Shirafuji v Yunosuke Tanaka | 4-6,2-6 |
| ITF Japón F8 | 2018/06/11 00:00 | Yunosuke Tanaka v Tomohiro Masabayashi | 6-1,3-6,6-2 |
| ITF M15 Tsukuba | 2019/03/27 02:25 | Jumpei Yamasaki v Masamichi Imamura | 6-1,4-6,6-4 |
| ITF M15 Kofu | 2019/03/24 01:30 | Jumpei Yamasaki v Sho Shimabukuro | 7-6,6-3 |
| ITF M15 Kofu | 2019/03/23 02:55 | Jumpei Yamasaki v Ryota Tanuma | 6-2,6-4 |
| ITF M15 Kofu | 2019/03/22 03:50 | Yusuke Takahashi v Jumpei Yamasaki | 3-6,1-6 |
| ITF M15 Kofu | 2019/03/21 04:10 | Jumpei Yamasaki v Min-Kyu Song | 7-5,6-1 |
| ITF M15 Kofu | 2019/03/19 01:00 | Keisuke Saitoh v Jumpei Yamasaki | 2-6,3-6 |
| ITF M15 Nishi-Tokyo | 2019/03/14 01:00 | Shintaro Imai v Jumpei Yamasaki | 3-6,6-3,6-3 |
| ITF M15 Nishi-Tokyo | 2019/03/13 02:20 | Jumpei Yamasaki v Michael Look | 6-4,2-6,6-2 |