Ground: Clay
| ITF Chinese Taipei F1 | 2014/08/27 02:00 | Takeuchi, Kento (1987) v Ko Suzuki | 6-0,6-4 |
| ITF Japan F2 | 2014/03/19 01:00 | Takeuchi, Kento (1987) v Ko Suzuki | 6-3,6-3 |
| ITF Japan F6 Qual | 2015/06/07 01:00 | Ko Suzuki v Tanaka-Tamaki, Kento | 6-2,6-3 |
| ITF Guam F1 | 2015/05/30 04:20 | Kikuchi, Gengo v Ko Suzuki | 6-2,6-3 |
| ITF Guam F1 | 2015/05/29 05:10 | Ko Suzuki v Katayama, Sho | 6-3,4-6,6-2 |
| ITF Guam F1 | 2015/05/28 00:00 | Sano, Koichi v Ko Suzuki | 2-6,1-6 |
| ITF Japan F3 | 2015/03/23 01:00 | Ko Suzuki v Jeamoon Lee | 3-6,0-6 |
| ITF Japan F3 | 2015/03/21 04:00 | Ko Suzuki v Ryotaro Matsumura | 6-0,6-1 |
| ITF Japan F2 | 2015/03/17 05:25 | Ko Suzuki v Moritani, Soichiro | 6-3,3-6,2-6 |
| ITF Japan F1 | 2015/03/11 01:00 | Chaplin, Jarryd v Ko Suzuki | 6-4,6-4 |
| 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 |
| ITF Thailand F9 | 2015/04/25 03:00 | Akira Santillan v Takeuchi, Kento (1987) | 6-3,6-2 |