Round: 25 Ground: Hardcourt outdoor
| Challenger Granby | 2018/07/29 19:00 | Ugo Humbert v Polansky, Peter | 4-6,6-1,2-6 |
| Challenger Granby | 2018/07/28 20:05 | Polansky, Peter v Dancevic, Frank | 7-6,6-4 |
| Challenger Granby | 2018/07/28 19:00 | Polansky, Peter v Dancevic, Frank | 7-6,6-4 |
| Challenger Granby | 2018/07/27 21:30 | Stefano Napolitano v Polansky, Peter | 5-7,6-7 |
| Challenger Granby | 2018/07/26 17:10 | Li, Zhe v Polansky, Peter | 4-6,3-6 |
| Challenger Granby | 2018/07/24 18:50 | Yusuke Takahashi v Polansky, Peter | 4-6,1-6 |
| Gatineau, Canada | 2018/07/20 23:30 | Polansky, Peter v Ugo Humbert | 7-6,6-7,6-7 |
| Gatineau, Canada | 2018/07/19 15:00 | Polansky, Peter v Krainik, Pavel | 6-2,7-5 |
| Atlanta, USA | 2018/07/29 21:00 | Isner, John v Harrison, Ryan | 5-7,6-3,6-4 |
| Atlanta, USA | 2018/07/28 23:00 | Harrison, Ryan v Cameron Norrie | 2-6,6-3,6-2 |
| Atlanta, USA | 2018/07/27 20:00 | Harrison, Ryan v Chung, Hyeon | 6-7,6-2,7-6 |
| Atlanta, USA | 2018/07/25 17:00 | Harrison, Ryan v Lacko, Lukas | 2-6,6-2,6-3 |
| Atlanta, USA | 2018/07/24 16:30 | Harrison, Ryan v James Duckworth | 4-6,7-6,6-1 |
| Wimbledon, London, Great Britain | 2018/07/04 12:25 | Adrian Mannarino v Harrison, Ryan | 7-5,7-5,7-6 |
| Wimbledon, London, Great Britain | 2018/07/02 16:00 | Harrison, Ryan v Roberto Carballes Baena | 6-1,6-4,6-2 |
| Eastbourne, Great Britain | 2018/06/25 12:40 | Jay Clarke v Harrison, Ryan | 6-4,6-1 |