Ground: Hardcourt outdoor
| ITF Japan F4 | 2015/03/30 05:00 | Naoki Nakagawa v Jumpei Yamasaki | 6-7,4-6 |
| ITF Turkey F34 | 2014/09/27 07:00 | Ben Mclachlan v Jumpei Yamasaki | 7-5,6-4 |
| ITF Turkey F33 | 2014/09/22 07:00 | Scott Clayton v Jumpei Yamasaki | 3-6,6-7 |
| ITF Italy F13 | 2014/05/07 12:25 | Viktor Galovic v Jumpei Yamasaki | 7-6,6-3 |
| ITF Italy F13 | 2014/05/05 10:00 | Jumpei Yamasaki v Goncalo Oliveira | 6-3,1-6,6-4 |
| ITF Italy F12 | 2014/05/01 09:00 | Jumpei Yamasaki v Gibril Diarra | 6-7,4-6 |
| ITF Italy F12 | 2014/04/30 08:30 | Riccardo Sinicropi v Jumpei Yamasaki | 4-6,6-7 |
| ITF Japan F4 | 2015/03/31 01:00 | Akira Santillan v Yusuke Watanuki | 4-6,6-0,5-7 |
| ITF Japan F3 | 2015/03/24 02:10 | Yusuke Watanuki v Shuichi Sekiguchi | 1-6,3-6 |
| 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 |