| Challenger Kaohsiung Qual | 2014/07/14 06:00 | Kento Takeuchi v Takashi Saito | 6-4,1-6,6-3 |
| ITF Japan F6 | 2015/06/11 01:00 | Yusuke Watanuki v Takashi Saito | 6-3,6-7,3-6 |
| ITF Japan F6 | 2015/06/09 04:00 | Ben Mclachlan v Takashi Saito | 5-7,4-6 |
| ITF Japan F5 | 2015/06/06 03:00 | Takashi Saito v Hiromasa Oku | 6-3,6-1 |
| ITF Japan F5 | 2015/06/05 01:00 | Takashi Saito v Thomas Fancutt | 6-2,6-3 |
| ITF Japan F5 | 2015/06/04 01:00 | Takashi Saito v Shunrou Takeshima | 7-5,6-1 |
| ITF Japan F5 | 2015/06/03 06:30 | Takashi Saito v Masaki Sasai | 6-0,6-2 |
| ITF Spain F14 | 2015/05/21 10:50 | Tommy Paul v Takashi Saito | 7-5,6-4 |
| 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 | Ko Suzuki v Kento Takeuchi | 6-7,3-6 |
| ITF Japan F6 | 2015/06/09 07:45 | Yuichi Ito v Kento Takeuchi | 2-6,0-6 |
| ITF China F6 | 2015/05/30 02:00 | Duckhee Lee v Kento Takeuchi | 6-1,6-4 |
| ITF China F6 | 2015/05/27 02:00 | Yecong He v Kento Takeuchi | 3-6,0-6 |
| ITF China F6 | 2015/05/26 03:45 | Shi Hong Zeng v Kento Takeuchi | 4-6,2-6 |
| ITF Thailand F9 | 2015/05/07 03:00 | Kento Takeuchi v Jacob Grills | 3-6,2-6 |
| ITF Thailand F9 | 2015/05/06 03:00 | Kento Takeuchi v Pruchya Isarow | 6-2,6-3 |
| ITF Thailand F9 | 2015/05/05 03:00 | Kento Takeuchi v Ren Nakamura | 6-2,6-0 |