Ground: Hardcourt outdoor
| ITF Japan F6 | 2014/06/14 02:00 | Takashi Saito v Takuto Niki | 7-6,6-3 |
| ITF Japan F3 | 2015/03/26 01:00 | Takashi Saito v Shuichi Sekiguchi | 3-6,6-7 |
| ITF Japan F3 | 2015/03/24 03:10 | Takashi Saito v Masaki Sasai | 4-6,6-4,6-4 |
| ITF Japan F3 | 2015/03/23 01:00 | Takashi Saito v Jarryd Chaplin | 7-6,3-6,7-6 |
| ITF Japan F3 | 2015/03/22 01:00 | Takashi Saito v Yutaro Matsuzaki | 6-0,6-3 |
| ITF Japan F3 | 2015/03/21 01:00 | Takashi Saito v Yusei Fukuoka | 6-1,6-0 |
| ITF Japan F1 | 2015/03/11 06:20 | Takashi Saito v Yunseong Chung | 5-7,4-6 |
| ITF Tunisia F5 | 2015/02/13 09:00 | Oriol Roca Batalla v Takashi Saito | 7-6,6-4 |
| ITF Tunisia F5 | 2015/02/12 08:30 | Takashi Saito v Erik Crepaldi | 6-4,7-6 |
| ITF Japan F3 | 2015/03/27 02:25 | Yong-Kyu Lim v Takuto Niki | 7-6,7-5 |
| ITF Japan F3 | 2015/03/26 03:45 | Hiroyasu Ehara v Takuto Niki | 6-4,3-6,3-6 |
| ITF Japan F3 | 2015/03/25 01:00 | Jeamoon Lee v Takuto Niki | 1-6,1-6 |
| ITF Japan F2 | 2015/03/22 02:00 | Takuto Niki v Shintaro Imai | 6-7,6-4,6-2 |
| ITF Japan F2 | 2015/03/21 03:20 | Takuto Niki v Hiroyasu Ehara | 6-3,6-7,6-2 |
| ITF Japan F2 | 2015/03/20 03:00 | Takuto Niki v Masaki Sasai | 7-5,6-3 |
| ITF Japan F2 | 2015/03/17 03:00 | Takuto Niki v Luca Pancaldi | 7-6,6-4 |
| ITF Japan F1 | 2015/03/14 02:00 | Takuto Niki v Yuichi Ito | 7-6,6-3 |