Stadium: Court B Round: 25 Ground: Hardcourt indoor
| 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 |
| Australian Open - Wild Card | 2017/12/01 03:15 | Yusuke Takahashi v Hiroki Moriya | 6-3,3-6,5-7 |
| Challenger Kyoto Qual | 2018/02/19 03:45 | Blake Ellis v Takuto Niki | 6-3,6-4 |
| Challenger Kyoto Qual | 2018/02/18 06:20 | Cheong-Eui Kim v Blake Ellis | 3-6,6-4,6-7 |
| Challenger Kyoto Qual | 2018/02/17 06:40 | Blake Ellis v Tamaki Yamao | 6-4,6-4 |
| Challenger Launceston Qual | 2018/02/03 23:00 | Lucas Catarina v Blake Ellis | 6-4,6-2 |
| Challenger Launceston Qual | 2018/02/03 00:05 | Blake Ellis v Alexander Zhurbin | 6-7,6-4,6-2 |
| Challenger Burnie | 2018/01/30 02:35 | Blake Ellis v Evan King | 6-7,3-6 |
| Australian Open Qual | 2018/01/09 23:00 | Stefan Kozlov v Blake Ellis | 7-6,4-6,7-6 |
| Australian Open - Wild Card | 2017/12/11 02:00 | Blake Ellis v Christopher O'Connell | 7-6,4-6,3-6,4-6 |