Ground: Clay
| Challenger Kaohsiung Qual | 2014/07/14 06:00 | Takeuchi, Kento (1987) v Saito, Takashi | 6-4,1-6,6-3 |
| ITF Japan F6 | 2015/06/11 01:00 | Watanuki, Yusuke v Saito, Takashi | 6-3,6-7,3-6 |
| ITF Japan F6 | 2015/06/09 04:00 | Mclachlan, Ben v Saito, Takashi | 5-7,4-6 |
| ITF Japan F5 | 2015/06/06 03:00 | Saito, Takashi v Oku, Hiromasa | 6-3,6-1 |
| 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 F6 | 2015/06/11 01:00 | Ko Suzuki v Takeuchi, Kento (1987) | 6-7,3-6 |
| ITF Japan F6 | 2015/06/09 07:45 | Ito, Yuichi v Takeuchi, Kento (1987) | 2-6,0-6 |
| ITF China F6 | 2015/05/30 02:00 | Duckhee Lee v Takeuchi, Kento (1987) | 6-1,6-4 |
| ITF China F6 | 2015/05/27 02:00 | He, Yecong v Takeuchi, Kento (1987) | 3-6,0-6 |
| ITF China F6 | 2015/05/26 03:45 | Zeng, Shi Hong v Takeuchi, Kento (1987) | 4-6,2-6 |
| ITF Thailand F9 | 2015/05/07 03:00 | Takeuchi, Kento (1987) v Grills, Jacob | 3-6,2-6 |
| ITF Thailand F9 | 2015/05/06 03:00 | Takeuchi, Kento (1987) v Isarow, Pruchya | 6-2,6-3 |
| ITF Thailand F9 | 2015/05/05 03:00 | Takeuchi, Kento (1987) v Ren Nakamura | 6-2,6-0 |