Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF Japan F1 | 2018/03/04 01:00 | Fujii, Sota v Tanaka, Yunosuke | 7-6,3-6,6-2 |
| Turkey F6, Singles Qualifying | 2018/02/13 10:30 | Samper-Montana, Jordi v Tanaka, Yunosuke | 6-2,6-3 |
| Turkey F6, Singles Qualifying | 2018/02/12 09:00 | Tanaka, Yunosuke v Shohei Chikami | 6-3,6-1 |
| Turkey F6, Singles Qualifying | 2018/02/11 09:00 | Tanaka, Yunosuke v Zick, Charly | 6-2,6-2 |
| Turkey F6, Singles Qualifying | 2018/02/10 06:00 | Elia, Alon v Tanaka, Yunosuke | 4-6,1-6 |
| ITF Hong Kong F6 | 2018/01/02 02:00 | Tanaka, Yunosuke v Murray, Jack | 3-6,3-6 |
| ITF Hong Kong F6 | 2017/12/31 02:00 | Furuta, Ibuki v Tanaka, Yunosuke | 1-6,6-1,3-6 |
| ITF Japan F8 | 2017/06/15 01:00 | Sho Shimabukuro v Tanaka, Yunosuke | 6-3,6-3 |
| ITF Japan F2 | 2018/03/12 00:30 | Sakai, Yuto v Takeshima, Shunrou | 6-4,6-2 |
| ITF Japan F2 | 2018/03/11 04:00 | Kikuchi, Gengo v Sakai, Yuto | 2-6,2-6 |
| ITF Japan F2 | 2018/03/10 04:00 | Sakai, Yuto v Bang Shuo Yin | 6-3,6-2 |
| ITF Turkey F7 | 2018/02/20 11:30 | Sakai, Yuto v Chun Hsin Tseng | 6-4,2-6,1-6 |
| ITF Turkey F7 | 2018/02/19 08:00 | Sakai, Yuto v Shimizu, Kazuki | 6-2,6-3 |
| ITF Turkey F7 | 2018/02/18 11:00 | Sakai, Yuto v Capalbo, Franco | 6-4,6-1 |
| ITF Turkey F7 | 2018/02/18 06:30 | Orlando Luz v Sakai, Yuto | 6-1,6-7,4-6 |
| Turkey F6, Singles Qualifying | 2018/02/11 06:00 | Sakai, Yuto v Apostol, Andrei Stefan | 6-4,5-7,3-6 |