Ground: Hardcourt outdoor
| ITF China F4 Qual | 2015/04/18 05:00 | Jun Nan Tao v Issei Okamura | 4-6,4-6 |
| ITF China F2 Qual | 2015/04/14 02:40 | Aoxiong Wang v Issei Okamura | 4-6,6-2,6-3 |
| ITF China F2 | 2015/04/07 05:55 | Issei Okamura v Yan Bai | 0-6,1-6 |
| ITF China F2 Qual | 2015/04/06 02:00 | Issei Okamura v Zuxin Zheng | 6-0,7-6 |
| ITF Japan F4 | 2015/03/29 01:00 | Seong Chan Hong v Issei Okamura | 6-3,6-3 |
| ITF Japan F4 | 2015/03/28 05:30 | Taiki Hashimoto v Issei Okamura | 7-6,1-6,1-6 |
| ITF Japan F3 | 2015/03/21 02:30 | Issei Okamura v Keisuke Watanuki | 6-2,6-3 |
| ITF Japan F2 | 2015/03/15 01:00 | Masaki Sasai v Issei Okamura | 6-3,6-0 |
| ITF China F4 Qual | 2015/04/18 02:00 | Ruitong Fang v Ruikai Wang | 1-6,4-6 |
| ITF China F2 Qual | 2015/04/14 03:35 | Chuhan Wang v Ruikai Wang | 6-4,6-2 |
| ITF China F2 Qual | 2015/04/06 02:00 | Ruikai Wang v Wei-De Lin | 6-2,3-6,3-6 |
| ITF China F2 Qual | 2015/04/05 03:15 | Ruikai Wang v San Wong | 6-1,6-1 |
| ITF China F2 Qual | 2015/04/04 06:35 | Huixin Wang v Ruikai Wang | 2-6,6-4,4-6 |
| ITF China F2 Qual | 2015/04/02 02:00 | Ruikai Wang v Yan Bai | 0-6,1-6 |
| ITF China F2 Qual | 2015/03/31 02:00 | Zuxin Zheng v Ruikai Wang | 0-6,0-6 |
| ITF China F3 | 2014/03/18 02:00 | Jung-Woong Na v Ruikai Wang | 6-4,6-2 |