Ground: Hardcourt outdoor
| ITF Japan F3 | 2015/03/24 03:10 | Saito, Takashi v Sasai, Masaki | 4-6,6-4,6-4 |
| 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 Japan F3 | 2015/03/24 02:10 | Watanuki, Yusuke v Sekiguchi, Shuichi | 1-6,3-6 |
| ITF Turkey F2 | 2015/01/17 07:00 | Jose Pereira v Sekiguchi, Shuichi | 6-3,7-5 |
| ITF Turkey F1 | 2015/01/11 09:00 | Sekiguchi, Shuichi v Hugo Nys | 6-7,6-4,6-3 |
| ITF Turkey F1 | 2015/01/10 08:00 | Alexey Vatutin v Sekiguchi, Shuichi | 4-6,6-2,5-7 |
| ITF Turkey F1 | 2015/01/09 08:00 | Jose Pereira v Sekiguchi, Shuichi | 4-6,6-3,3-6 |
| ITF Turkey F1 | 2015/01/08 08:00 | Uzhylovsky, Vladimir v Sekiguchi, Shuichi | 3-6,5-7 |
| ITF Thailand F10 | 2014/12/03 07:05 | Burapharitta, Phassawit v Sekiguchi, Shuichi | 6-3,6-4 |
| ITF Thailand F10 | 2014/12/01 03:00 | Congsup Congcar v Sekiguchi, Shuichi | 0-6,3-6 |