Ground: Hardcourt outdoor
| ITF Thailand F9 | 2015/04/20 04:45 | Masato Shiga v Warit Sornbutnark | 4-6,5-7 |
| ITF Japan F4 | 2015/03/31 01:00 | Masato Shiga v Ryota Tanuma | 6-3,4-6,2-6 |
| ITF Japan F3 | 2015/03/25 03:00 | Masato Shiga v Yuichi Ito | 3-6,6-3,5-7 |
| ITF Japan F2 | 2015/03/17 02:50 | Masato Shiga v Chu-Huan Yi | 1-6,2-6 |
| ITF Turkey F3 | 2015/01/27 08:00 | Masato Shiga v Lucas Miedler | 6-3,6-7,5-7 |
| ITF Turkey F4 | 2015/01/26 11:40 | Masato Shiga v Fran Zvonimir Zgombic | 6-1,6-2 |
| ITF Turkey F4 | 2015/01/25 08:00 | Masato Shiga v Gabriele Maria Noce | 7-6,6-3 |
| ITF Turkey F3 | 2015/01/20 09:30 | Masato Shiga v Volodymyr Uzhylovskyi | 3-6,6-3,3-6 |
| ITF Japan F4 | 2015/03/30 05:00 | Arata Onozawa v Shuichi Sekiguchi | 4-6,4-6 |
| ITF Japan F3 | 2015/03/24 03:20 | Yasutaka Uchiyama v Arata Onozawa | 6-3,6-2 |
| ITF Japan F2 | 2015/03/17 04:10 | Masaki Sasai v Arata Onozawa | 6-4,6-4 |
| ITF Japan F1 | 2015/03/12 01:00 | Arata Onozawa v Ken Onishi | 3-6,6-1,5-7 |
| ITF Japan F1 | 2015/03/10 01:00 | Arata Onozawa v Taiki Hashimoto | 6-2,6-1 |
| ITF Turkey F2 | 2015/01/17 07:00 | Arata Onozawa v Alexey Vatutin | 2-6,2-6 |
| ITF Turkey F2 | 2015/01/15 12:55 | Miki Jankovic v Arata Onozawa | 4-6,7-6,0-6 |
| ITF Turkey F1 | 2015/01/08 08:00 | Hugo Nys v Arata Onozawa | 6-1,6-2 |