| ITF Japan F2 | 2015/03/20 03:00 | Takuto Niki v Masaki Sasai | 7-5,6-3 |
| ITF Japan F1 | 2015/03/12 01:00 | Takuto Niki v Masaki Sasai | 6-2,6-1 |
| ITF Japan F8 | 2014/06/25 01:00 | Takuto Niki v Masaki Sasai | 3-6,1-6 |
| ITF Japan F5 | 2014/06/03 01:00 | Takuto Niki v Masaki Sasai | 6-4,6-4 |
| ITF Japan F6 | 2015/06/11 02:55 | Takuto Niki v Keisuke Watanuki | 6-7,7-6,6-4 |
| ITF China F6 | 2015/05/28 02:00 | Xin Gao v Takuto Niki | 6-2,7-6 |
| ITF China F6 | 2015/05/26 07:25 | Xiao Gong v Takuto Niki | 2-6,2-6 |
| ITF Japan F4 | 2015/04/04 01:30 | Yasutaka Uchiyama v Takuto Niki | 6-1,6-2 |
| ITF Japan F4 | 2015/04/03 01:30 | Zhe Li v Takuto Niki | 2-6,2-6 |
| ITF Japan F4 | 2015/04/02 03:15 | Yong-Kyu Lim v Takuto Niki | 2-6,2-6 |
| ITF Japan F4 | 2015/04/01 03:20 | Yuichi Ito v Takuto Niki | 1-6,4-6 |
| ITF Japan F4 | 2015/03/31 01:00 | Takashi Saito v Takuto Niki | 5-7,7-5,3-6 |
| ITF Japan F6 | 2015/06/11 01:00 | Yosuke Watanuki v Masaki Sasai | 3-6,2-6 |
| ITF Japan F6 | 2015/06/10 03:10 | Masaki Sasai v Shuichi Sekiguchi | 7-6,7-5 |
| ITF Japan F5 | 2015/06/03 06:30 | Takashi Saito v Masaki Sasai | 6-0,6-2 |
| ITF Guam F1 | 2015/05/26 00:00 | Hiromasa Oku v Masaki Sasai | 6-1,6-1 |
| ITF Japan F4 | 2015/03/31 03:50 | Masaki Sasai v Ryotaro Matsumura | 2-6,2-6 |
| ITF Japan F4 | 2015/03/28 03:00 | Masaki Sasai v Masayoshi Ono | 6-4,6-1 |
| ITF Japan F3 | 2015/03/24 03:10 | Takashi Saito v Masaki Sasai | 4-6,6-4,6-4 |
| ITF Japan F2 | 2015/03/20 03:00 | Takuto Niki v Masaki Sasai | 7-5,6-3 |