Stadium: Court 8 Round: 26 Ground: Clay
| ITF Japan F6 | 2018/04/10 01:00 | Jumpei Yamasaki v Yuya Kibi | 7-6,6-1 |
| ITF Japan F5 | 2018/04/04 01:00 | Shintaro Imai v Jumpei Yamasaki | 6-3,6-4 |
| ITF Japan F5 | 2018/04/02 02:20 | Jumpei Yamasaki v Soichiro Moritani | 6-1,6-3 |
| 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 F6 | 2018/04/10 01:00 | Xin Gao v Shintaro Imai | 6-3,6-4 |
| ITF Japan F5 | 2018/04/04 04:50 | Zhe Li v Xin Gao | 6-3,7-5 |
| ITF Japan F5 | 2018/04/03 01:00 | Cing-Yang Meng v Xin Gao | 2-6,4-6 |
| ITF Japan F4 | 2018/03/27 01:00 | Seong Chan Hong v Xin Gao | 6-3,6-4 |
| Challenger Qujing | 2018/03/19 02:00 | Hiroki Moriya v Xin Gao | 6-7,6-4,6-2 |
| Challenger Shenzhen Qual | 2018/03/11 09:10 | Xin Gao v Hiroki Moriya | 4-6,4-6 |
| Challenger Shenzhen Qual | 2018/03/11 05:10 | Mikhail Elgin v Xin Gao | 3-6,4-6 |
| Challenger Zhuhai Qual | 2018/03/03 04:50 | Xin Gao v Renta Tokuda | 3-6,1-6 |