Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| Challenger Yokohama Qual | 2018/02/26 01:00 | Zhe Li v Hiroyasu Ehara | 6-7,6-3,4-6 |
| Challenger Yokohama Qual | 2018/02/25 01:00 | Tung-Lin Wu v Hiroyasu Ehara | 5-7,3-6 |
| Challenger Yokohama Qual | 2018/02/24 03:45 | Luca Margaroli v Hiroyasu Ehara | 1-6,2-6 |
| Challenger Kyoto Qual | 2018/02/18 04:50 | Hiroyasu Ehara v Luke Saville | 6-7,3-6 |
| Challenger Kyoto Qual | 2018/02/17 04:45 | Hiroyasu Ehara v Naru Shirafuji | 7-5,6-2 |
| ITF Egypt F3 | 2018/02/03 14:30 | Pedro Martinez v Hiroyasu Ehara | 6-2,6-2 |
| ITF Egypt F3 | 2018/02/02 15:00 | Hiroyasu Ehara v Alexander Erler | 6-2,3-6,6-1 |
| ITF Egypt F3 | 2018/02/01 15:00 | Hiroyasu Ehara v Vit Kopriva | 7-6,3-6,7-5 |
| Challenger Kyoto | 2018/02/21 04:00 | Go Soeda v Andrew Whittington | 6-4,6-1 |
| Challenger Kyoto | 2018/02/19 08:30 | Andrew Whittington v Sora Fukuda | 6-3,6-3 |
| Challenger Launceston | 2018/02/08 00:00 | Andrew Whittington v Andrew Harris | 6-1,6-7,6-7 |
| Challenger Launceston | 2018/02/06 00:40 | Lucas Catarina v Andrew Whittington | 6-7,1-6 |
| Challenger Burnie | 2018/02/01 01:30 | Andrew Whittington v Yoshihito Nishioka | 6-2,2-6,3-6 |
| Challenger Burnie | 2018/01/31 06:30 | Andrew Whittington v Luke Saville | 2-6,7-6,6-1 |
| Challenger Burnie | 2018/01/29 01:05 | Andrew Whittington v Brydan Klein | 6-7,7-6,6-2 |
| Australian Open Qual | 2018/01/11 07:45 | Andrew Whittington v Vaclav Safranek | 2-6,3-6 |