Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| Yokohama, Japan, Qualifying | 2018/02/26 01:00 | Jumpei Yamasaki v Masamichi Imamura | 4-6,7-6,6-4 |
| Yokohama, Japan, Qualifying | 2018/02/25 01:00 | Banes, Maverick v Jumpei Yamasaki | 6-2,1-6,4-6 |
| Yokohama, Japan, Qualifying | 2018/02/24 01:00 | Takeuchi, Kento (1987) v Jumpei Yamasaki | 3-6,3-6 |
| ITF Egypt F3 | 2018/01/31 16:40 | Jumpei Yamasaki v Riccardo Bonadio | 2-6,6-7 |
| ITF Egypt F3 | 2018/01/29 08:00 | Jumpei Yamasaki v Lechevretel, Louis | 6-3,6-4 |
| ITF Egypt F3 | 2018/01/28 08:00 | Jumpei Yamasaki v Ren Nakamura | 6-1,7-5 |
| ITF Egypt F2 | 2018/01/20 08:00 | Lechevretel, Louis v Jumpei Yamasaki | 4-6,7-6,6-4 |
| ITF Egypt F1 | 2018/01/16 08:00 | Jumpei Yamasaki v Hiroki Moriya | 1-6,4-6 |
| Kyoto, Japan | 2018/02/20 04:10 | Gunneswaran, Prajnesh v Robert, Stephane | 6-3,1-6,6-4 |
| Challenger Launceston | 2018/02/08 00:00 | Mousley, Bradley v Robert, Stephane | 7-6,6-4 |
| Challenger Launceston | 2018/02/06 01:40 | Mina, Gianni v Robert, Stephane | 6-7,1-6 |
| Challenger - Burnie | 2018/02/03 03:00 | Daniel Altmaier v Robert, Stephane | 1-6,2-6 |
| Challenger - Burnie | 2018/02/02 08:50 | Robert, Stephane v Yoshihito Nishioka | 6-3,3-6,6-4 |
| Challenger - Burnie | 2018/02/01 00:00 | Robert, Stephane v King, Evan | 6-1,6-4 |
| Challenger - Burnie | 2018/01/31 02:15 | Robert, Stephane v Bourchier, Harry | 7-5,7-5 |
| Challenger - Burnie | 2018/01/29 06:20 | Robert, Stephane v Caruana, Liam | 4-6,7-5,6-4 |