Round: 26 Ground: Hardcourt outdoor
| ITF Guam F1 | 2017/06/20 07:15 | Luca Castelnuovo v Masaki Sasai | 6-4,4-6,6-3 |
| ITF Japan F8 | 2017/06/12 00:00 | Luca Castelnuovo v Yuto Sakai | 7-6,4-6,6-7 |
| ITF Japan F8 | 2017/06/10 05:00 | Luca Castelnuovo v Naoya Maesaki | 6-3,6-4 |
| ITF Japan F7 | 2017/06/04 01:00 | Rio Noguchi v Luca Castelnuovo | 6-1,6-1 |
| ITF Japan F7 | 2017/06/03 01:00 | Daisuke Sumizawa v Luca Castelnuovo | 3-6,3-6 |
| ITF Japan F6 | 2017/05/30 02:20 | Masaya Kobayashi v Luca Castelnuovo | 6-4,7-6 |
| ITF Japan F6 Qual | 2017/05/29 01:00 | Luca Castelnuovo v Kento Tagashira | 7-5,6-1 |
| ITF Japan F6 Qual | 2017/05/27 01:00 | Luca Castelnuovo v Mark Verryth | 6-3,6-2 |
| 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 |
| ITF Japan F5 | 2016/04/06 00:30 | Ken Onishi v Takao Suzuki | 6-3,4-6,3-6 |