Estadio: Court 7 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Nishi-Tokyo | 2019/03/13 01:00 | Shuichi Sekiguchi v Keisuke Saitoh | 6-3,6-2 |
| ITF M15 Nishi-Tama | 2019/03/08 02:40 | Seong Chan Hong v Keisuke Saitoh | 6-3,6-0 |
| ITF M15 Nishi-Tama | 2019/03/06 01:00 | Soichiro Moritani v Keisuke Saitoh | 2-6,0-6 |
| 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 |
| 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 06:50 | Seong Chan Hong v Jumpei Yamasaki | 6-3,6-7,2-6 |
| ITF M15 Nishi-Tama | 2019/03/08 02:30 | Gengo Kikuchi v Jumpei Yamasaki | 6-7,6-4,3-6 |
| ITF M15 Nishi-Tama | 2019/03/06 02:30 | Jumpei Yamasaki v Blake Ellis | 7-5,6-4 |
| ITF M15 Claremont | 2019/02/07 18:00 | Jenson Brooksby v Jumpei Yamasaki | 6-2,6-1 |
| ITF M15 Claremont | 2019/02/06 18:00 | Dusty H. Boyer v Jumpei Yamasaki | 6-4,3-6,6-7 |