Stadium: Court Central Round: 25 Ground: Hardcourt outdoor
| Challenger Gatineau | 2018/07/17 14:00 | Yusuke Takahashi v Go Soeda | 4-6,3-6 |
| Challenger Winnipeg | 2018/07/10 15:00 | Yusuke Takahashi v Jason Kubler | 2-6,2-6 |
| Challenger Fergana | 2018/06/18 09:05 | Yusuke Takahashi v Duckhee Lee | 6-7,1-6 |
| Challenger Almaty | 2018/06/13 05:00 | Yusuke Takahashi v Roberto Cid Subervi | 1-6,0-6 |
| Challenger Almaty Qual | 2018/06/11 04:00 | Yusuke Takahashi v Gerard Granollers-Pujol | 5-7,0-6 |
| Challenger Almaty Qual | 2018/06/10 06:35 | Yusuke Takahashi v Pavel Kotov | 7-5,3-6,6-3 |
| Challenger Almaty Qual | 2018/06/09 07:20 | Yusuke Takahashi v Sidharth Rawat | 7-6,6-2 |
| Challenger Busan | 2018/05/14 07:45 | Yusuke Takahashi v Duckhee Lee | 2-6,1-6 |
| Challenger Gatineau | 2018/07/20 23:30 | Peter Polansky v Ugo Humbert | 7-6,6-7,6-7 |
| Challenger Gatineau | 2018/07/19 15:00 | Peter Polansky v Pavel Krainik | 6-2,7-5 |
| Challenger Gatineau | 2018/07/17 22:00 | Peter Polansky v Ricardo Rodriguez-Pace | 7-6,6-7,7-5 |
| Challenger Winnipeg | 2018/07/12 18:40 | Peter Polansky v Lucas Miedler | 6-7,7-5,1-6 |
| Challenger Winnipeg | 2018/07/11 23:35 | Peter Polansky v Pavel Krainik | 7-6,7-6 |
| Wimbledon | 2018/07/02 10:30 | Peter Polansky v Dennis Novak | 2-6,3-6,6-7 |
| Wimbledon Qual | 2018/06/28 10:00 | Peter Polansky v Jason Kubler | 6-7,3-6,7-6,4-6 |
| Wimbledon Qual | 2018/06/26 15:20 | Peter Polansky v Alejandro Davidovich Fokina | 7-5,6-2 |