| ITF Japan F5 | 2014/06/03 02:30 | Saito, Takashi v Oku, Hiromasa | 2-6,4-6 |
| ITF Japan F5 | 2015/06/05 01:00 | Saito, Takashi v Thomas Fancutt | 6-2,6-3 |
| ITF Japan F5 | 2015/06/04 01:00 | Saito, Takashi v Takeshima, Shunrou | 7-5,6-1 |
| ITF Japan F5 | 2015/06/03 06:30 | Saito, Takashi v Sasai, Masaki | 6-0,6-2 |
| ITF Spain F14 | 2015/05/21 10:50 | Tommy Paul v Saito, Takashi | 7-5,6-4 |
| ITF Japan F4 | 2015/03/31 01:00 | Saito, Takashi v Niki, Takuto | 5-7,7-5,3-6 |
| ITF Japan F3 | 2015/03/26 01:00 | Saito, Takashi v Sekiguchi, Shuichi | 3-6,6-7 |
| 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 F5 | 2015/06/05 02:35 | Oku, Hiromasa v Makoto Ochi | 2-6,6-2,6-4 |
| ITF Japan F5 | 2015/06/04 01:00 | Oku, Hiromasa v Ito, Yuichi | 6-0,6-1 |
| ITF Japan F5 | 2015/06/02 03:15 | Oku, Hiromasa v Sano, Koichi | 6-4,3-6,6-2 |
| ITF Guam F1 | 2015/05/29 00:00 | Oku, Hiromasa v Suzuki, Takao | 6-4,6-7,5-7 |
| ITF Guam F1 | 2015/05/27 00:00 | Oku, Hiromasa v Ono, Masayoshi | 6-0,6-2 |
| ITF Guam F1 | 2015/05/26 00:00 | Oku, Hiromasa v Sasai, Masaki | 6-1,6-1 |
| ITF Thailand F9 | 2015/04/28 03:00 | Ito, Yuichi v Oku, Hiromasa | 6-4,2-6,4-6 |
| ITF Thailand F9 | 2015/04/22 07:50 | Oku, Hiromasa v Lim, Yong-Kyu | 3-6,1-6 |