Ground: Hardcourt outdoor
| ITF Japan F3 | 2015/03/23 01:00 | Saito, Takashi v Chaplin, Jarryd | 7-6,3-6,7-6 |
| ITF Japan F3 | 2015/03/22 01:00 | Saito, Takashi v Matsuzaki, Yutaro | 6-0,6-3 |
| ITF Japan F3 | 2015/03/21 01:00 | Saito, Takashi v Fukuoka, Yusei | 6-1,6-0 |
| ITF Japan F1 | 2015/03/11 06:20 | Saito, Takashi v Yunseong Chung | 5-7,4-6 |
| ITF Tunisia F5 | 2015/02/13 09:00 | Oriol Roca Batalla v Saito, Takashi | 7-6,6-4 |
| ITF Tunisia F5 | 2015/02/12 08:30 | Saito, Takashi v Crepaldi, Erik | 6-4,7-6 |
| ITF Tunisia F5 | 2015/02/10 10:35 | Idmbarek, Yassine v Saito, Takashi | 3-6,6-1,0-6 |
| ITF Tunisia F5 | 2015/02/04 09:50 | Saito, Takashi v Tepavac, Marko | 2-6,7-5,4-6 |
| ITF Japan F2 | 2015/03/20 03:00 | Niki, Takuto v Sasai, Masaki | 7-5,6-3 |
| ITF Japan F2 | 2015/03/17 04:10 | Sasai, Masaki v Onozawa, Arata | 6-4,6-4 |
| ITF Japan F2 | 2015/03/15 01:00 | Sasai, Masaki v Issei Okamura | 6-3,6-0 |
| ITF Japan F1 | 2015/03/12 01:00 | Niki, Takuto v Sasai, Masaki | 6-2,6-1 |
| ITF Japan F1 | 2015/03/10 01:00 | Sasai, Masaki v Moritani, Soichiro | 6-1,7-5 |
| ITF Japan F8 | 2014/06/26 04:35 | Sasai, Masaki v Watanuki, Keisuke | 3-6,1-6 |
| ITF Japan F8 | 2014/06/25 01:00 | Niki, Takuto v Sasai, Masaki | 3-6,1-6 |
| ITF Japan F8 | 2014/06/22 03:00 | Sasai, Masaki v Habusawa, Tetsuro | 6-1,6-0 |