Ground: Synthetic outdoor
| ITF Japan F3 | 2014/03/29 03:30 | Hiroyasu Ehara v Yusuke Watanuki | 1-6,3-6 |
| ITF Tunisia F5 | 2015/02/10 12:30 | Maxime Tabatruong v Hiroyasu Ehara | 6-3,6-4 |
| ITF Tunisia F5 | 2015/02/03 08:30 | Hiroyasu Ehara v Gerard Granollers-Pujol | 6-7,5-7 |
| ITF Germany F4 | 2015/01/29 10:00 | Hiroyasu Ehara v Henri Laaksonen | 7-6,1-6,2-6 |
| ITF Germany F4 | 2015/01/28 09:00 | Nils Brinkmann v Hiroyasu Ehara | 1-6,5-7 |
| ITF Tunisia F11 | 2014/12/14 08:30 | Remi Boutillier v Hiroyasu Ehara | 6-7,5-7 |
| ITF Tunisia F11 | 2014/12/13 13:30 | Nikola Milojevic v Hiroyasu Ehara | 5-7,6-0,6-10 |
| ITF Tunisia F11 | 2014/12/13 09:35 | Francesco Vilardo v Hiroyasu Ehara | 3-6,4-6 |
| ITF Tunisia F11 | 2014/12/09 10:05 | Ameur Ben Hassen v Hiroyasu Ehara | 0-6,0-6 |
| ITF Tunisia F5 | 2015/02/05 10:20 | Yusuke Watanuki v Marko Tepavac | 3-6,0-6 |
| ITF Tunisia F5 | 2015/02/03 08:30 | Yusuke Watanuki v Pietro Licciardi | 6-3,6-7,6-2 |
| ITF Tunisia F5 | 2015/01/30 10:30 | Yusuke Watanuki v Jaime Pulgar-Garcia | 2-6,4-6 |
| ITF Tunisia F5 | 2015/01/29 12:00 | Yusuke Watanuki v Andrea Basso | 7-6,6-3 |
| ITF Tunisia F5 | 2015/01/27 09:45 | Gianluca Mager v Yusuke Watanuki | 6-7,2-6 |
| ITF Tunisia F2 | 2015/01/22 12:05 | Petar Conkic v Yusuke Watanuki | 6-3,0-6,6-4 |
| ITF Tunisia F2 | 2015/01/20 11:40 | Simone Roncalli v Yusuke Watanuki | 4-6,2-6 |
| ITF Turkey F36 | 2014/10/16 07:00 | Ben Mclachlan v Yusuke Watanuki | 6-4,6-2 |