Stadium: Court 3 Round: 25 Ground: Clay
| ITF Japan F4 | 2018/03/28 01:00 | Jumpei Yamasaki v Makoto Ochi | 1-6,2-6 |
| ITF Japan F4 | 2018/03/26 01:00 | Jumpei Yamasaki v Teppei Uesugi | 6-2,7-5 |
| ITF Japan F4 | 2018/03/25 01:00 | Jumpei Yamasaki v Yuga Tashiro | 6-2,6-3 |
| ITF Japan F3 | 2018/03/19 01:00 | Shuichi Sekiguchi v Jumpei Yamasaki | 6-7,7-6,6-2 |
| ITF Japan F2 | 2018/03/13 03:15 | Daniel Nguyen v Jumpei Yamasaki | 6-1,2-6,6-1 |
| ITF Japan F2 | 2018/03/12 00:30 | Jumpei Yamasaki v Naru Shirafuji | 6-0,6-0 |
| ITF Japan F2 | 2018/03/11 00:30 | Jumpei Yamasaki v Takashi Yasugami | 6-0,6-3 |
| ITF Japan F1 | 2018/03/08 07:15 | Jumpei Yamasaki v Yuki Mochizuki | 1-6,3-6 |
| ITF Japan F4 | 2018/03/26 01:00 | Soichiro Moritani v Shinta Fujii | 6-4,3-6,3-6 |
| ITF Japan F4 | 2018/03/25 01:00 | Soichiro Moritani v Masaki Sasai | 6-4,6-3 |
| ITF Japan F4 | 2018/03/24 02:00 | Soichiro Moritani v Itsuki Matsumoto | 6-2,6-3 |
| ITF Japan F3 | 2018/03/19 01:00 | Sho Katayama v Soichiro Moritani | 6-2,6-0 |
| ITF Japan F3 | 2018/03/18 01:00 | Soichiro Moritani v Takashi Saito | 6-3,3-6,0-6 |
| ITF Japan F3 | 2018/03/17 04:00 | Soichiro Moritani v Kazuki Shimizu | 6-2,6-3 |
| ITF Japan F2 | 2018/03/16 01:00 | Soichiro Moritani v Shintaro Imai | 2-6,5-7 |
| ITF Japan F2 | 2018/03/14 02:40 | Kento Takeuchi v Soichiro Moritani | 4-6,0-6 |