Round: 27 Ground: Hardcourt outdoor
| ITF Guam F1 | 2017/06/22 04:05 | Naru Shirafuji v Ken Onoda | 4-6,2-6 |
| ITF Guam F1 | 2017/06/20 07:45 | Nicholas Reyes v Ken Onoda | 4-6,4-6 |
| ITF Singapore F1 | 2017/06/05 02:00 | Ken Onoda v Linh Giang Trinh | 3-6,4-6 |
| ITF Singapore F2 | 2017/06/01 03:00 | Ramkumar Ramanathan v Ken Onoda | 6-1,6-2 |
| ITF Singapore F2 | 2017/05/30 07:15 | Congsup Congcar v Ken Onoda | 7-5,3-6,2-6 |
| ITF Singapore F2 Qual | 2017/05/29 04:20 | David Nguyen v Ken Onoda | 3-6,2-6 |
| ITF Singapore F2 Qual | 2017/05/28 04:00 | Kazuki Nishiwaki v Ken Onoda | 5-7,6-1,1-6 |
| ITF Singapore F1 | 2017/05/25 03:20 | Ken Onoda v Yuichi Ito | 3-6,6-3,1-6 |
| ITF Guam F1 | 2017/06/22 05:05 | Luca Castelnuovo v Takao Suzuki | 3-6,2-6 |
| ITF Guam F1 | 2017/06/21 02:30 | Takao Suzuki v Issei Okamura | 7-5,6-4 |
| ITF Japan F5 | 2017/04/05 00:30 | Takao Suzuki v Yusuke Watanuki | 2-6,1-6 |
| ITF Japan F5 | 2017/04/04 00:30 | Issei Okamura v Takao Suzuki | 6-7,3-6 |
| ITF Japan F5 | 2017/04/02 01:00 | Rio Noguchi v Takao Suzuki | 6-7,7-6,4-6 |
| ITF Japan F5 | 2017/04/01 02:00 | Yuga Tashiro v Takao Suzuki | 1-6,4-6 |
| ITF Japan F2 | 2017/03/13 01:00 | Jeamoon Lee v Takao Suzuki | 6-4,6-0 |
| ITF Guam F1 | 2016/05/25 02:30 | Deiton Baughman v Takao Suzuki | 6-3,6-2 |