Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF Thailand F5 | 2018/10/05 04:00 | Jumpei Yamasaki v Shintaro Imai | 2-6,4-6 |
| ITF Japan F5 | 2018/04/04 01:00 | Shintaro Imai v Jumpei Yamasaki | 6-3,6-4 |
| ITF Hong Kong F2 | 2017/06/29 02:00 | Jumpei Yamasaki v Shintaro Imai | 4-6,2-6 |