Round: 25 Ground: Hardcourt outdoor
| Challenger Kyoto | 2018/02/20 01:30 | Yusuke Takahashi v Blake Ellis | 7-6,4-6,4-6 |
| Challenger Burnie | 2018/02/01 02:40 | Yusuke Takahashi v Daniel Altmaier | 6-7,3-6 |
| Challenger Burnie | 2018/01/31 00:45 | Kevin King v Yusuke Takahashi | 4-6,6-2,2-6 |
| Challenger Burnie | 2018/01/29 23:00 | Alexander Sarkissian v Yusuke Takahashi | 7-5,6-7,0-6 |
| Challenger Bangkok | 2018/01/12 05:00 | Marcel Granollers v Yusuke Takahashi | 6-4,6-1 |
| Challenger Bangkok | 2018/01/11 03:00 | Emil Ruusuvuori v Yusuke Takahashi | 6-3,3-6,3-6 |
| Challenger Bangkok | 2018/01/09 07:40 | Mukund Sasikumar v Yusuke Takahashi | 2-6,7-5,0-6 |
| Challenger Bangkok | 2018/01/02 06:30 | Yusuke Takahashi v Aleksandr Nedovyesov | 4-6,4-6 |
| Challenger Kyoto | 2018/02/20 04:10 | Prajnesh Gunneswaran v Stephane Robert | 6-3,1-6,6-4 |
| Challenger Launceston | 2018/02/08 00:00 | Bradley Mousley v Stephane Robert | 7-6,6-4 |
| Challenger Launceston | 2018/02/06 01:40 | Gianni Mina v Stephane Robert | 6-7,1-6 |
| Challenger Burnie | 2018/02/03 03:00 | Daniel Altmaier v Stephane Robert | 1-6,2-6 |
| Challenger Burnie | 2018/02/02 08:50 | Stephane Robert v Yoshihito Nishioka | 6-3,3-6,6-4 |
| Challenger Burnie | 2018/02/01 00:00 | Stephane Robert v Evan King | 6-1,6-4 |
| Challenger Burnie | 2018/01/31 02:15 | Stephane Robert v Harry Bourchier | 7-5,7-5 |
| Challenger Burnie | 2018/01/29 06:20 | Stephane Robert v Liam Caruana | 4-6,7-5,6-4 |