| ITF Japan F5 | 2014/06/04 01:00 | Kikuchi, Gengo v Watanuki, Yusuke | 2-6,6-4,6-4 |
| Turkey F16, Singles Qualifying | 2014/05/16 07:30 | Dimitar Kuzmanov v Watanuki, Yusuke | 6-3,5-7,6-1 |
| Turkey F16, Singles Qualifying | 2014/05/15 10:30 | Bugby, Miles v Watanuki, Yusuke | 2-6,3-6 |
| Turkey F16, Singles Qualifying | 2014/05/13 07:30 | Strachan, Bruce v Watanuki, Yusuke | 1-6,2-6 |
| Turkey F15, Singles Qualifying | 2014/05/07 12:40 | Watanuki, Yusuke v Moraing, Mats | 3-6,7-6,1-6 |
| Turkey F14, Singles Qualifying | 2014/05/01 07:00 | Watanuki, Yusuke v Moraing, Mats | 6-3,2-6,6-4 |
| Turkey F14, Singles Qualifying | 2014/04/30 08:30 | Watanuki, Yusuke v Patino, Luis | 6-0,6-3 |
| ITF Japan F3 | 2014/03/30 02:00 | Watanuki, Yusuke v Niki, Takuto | 4-6,2-6 |