| ATP Vienna | 10/20 11:25 | 64 | [130] Polansky, Peter v Cameron Norrie [87] | 2-6,1-6 | |
| ATP Stockholm | 10/17 11:20 | 25 | [130] Polansky, Peter v Denis Shapovalov [30] | 3-6,7-5,5-7 | |
| ATP Stockholm | 10/15 12:00 | 164 | [130] Polansky, Peter v Arnaboldi, Andrea [190] | 6-4,1-6,6-4 | |
| ATP Stockholm | 10/14 13:55 | 64 | Polansky, Peter v Karl Friberg | 6-4,6-1 | |
| Challenger Tiburon | 09/26 19:55 | 26 | [120] Polansky, Peter v Christopher Eubanks [223] | 3-6,3-6 | |
| Challenger Tiburon | 09/25 18:30 | 25 | Polansky, Peter v Fawcett, Tom | 6-4,6-4 | |
| Challenger Columbus | 09/19 19:35 | 26 | [366] Thai-Son Kwiatkowski v Polansky, Peter [113] | 7-6,2-6,7-6 | |
| Challenger Columbus | 09/18 14:00 | 25 | Joyce, Martin v Polansky, Peter | 3-6,7-6,1-6 | |
| Challenger Cary | 09/10 20:40 | 25 | [112] Polansky, Peter v Gonzalez, Alejandro [354] | 3-6,4-6 | |
| US Open, New York, USA | 08/28 19:45 | 23 | [119] Polansky, Peter v Alexander Zverev [4] | 2-6,1-6,2-6 | |
| US Open, New York, USA | 08/24 15:00 | 46 | [120] Polansky, Peter v Young, Donald [242] | 5-7,6-1,3-6 | |
| US Open, New York, USA | 08/23 15:00 | 45 | [120] Polansky, Peter v Giraldo, Santiago [337] | 7-6,6-4 | |
| US Open, New York, USA | 08/21 22:15 | 44 | [120] Polansky, Peter v Guttierrez-Ferrol, Sergio [164] | 6-4,6-4 | |
| Vancouver, Canada | 08/15 18:00 | 26 | [123] Polansky, Peter v Aragone, JC [271] | 6-7,6-7 | |
| Vancouver, Canada | 08/14 01:40 | 25 | [123] Polansky, Peter v Giraldo, Santiago [327] | 7-6,5-7,6-3 | |
| Toronto, Canada | 08/08 15:45 | 25 | [121] Polansky, Peter v Novak Djokovic [10] | 3-6,4-6 | |
| Toronto, Canada | 08/06 15:00 | 24 | [121] Polansky, Peter v Ebden, Matthew [52] | 7-6,6-4 | |
| ATP - Los Cabos | 08/02 00:00 | 26 | [121] Michael Mmoh v Polansky, Peter [122] | 7-6,7-6 | |
| ATP - Los Cabos | 08/01 01:25 | 25 | [122] Polansky, Peter v Daniel Elahi Galan [176] | 6-4,3-6,6-2 | |
| ATP - Los Cabos | 07/31 16:00 | 25 | Polansky, Peter v Harrison, Ryan | Cancelled | |
| Challenger Granby | 07/29 19:00 | 29 | [219] Ugo Humbert v Polansky, Peter [134] | 4-6,6-1,2-6 | |
| Challenger Granby | 07/28 20:05 | 28 | Polansky, Peter v Dancevic, Frank | 7-6,6-4 | |
| Challenger Granby | 07/28 19:00 | - | [134] Polansky, Peter v Dancevic, Frank [328] | 7-6,6-4 | |
| Challenger Granby | 07/27 21:30 | 27 | [240] Stefano Napolitano v Polansky, Peter [134] | 5-7,6-7 | |
| Challenger Granby | 07/26 17:10 | 26 | [273] Li, Zhe v Polansky, Peter [134] | 4-6,3-6 | |
| Challenger Granby | 07/24 18:50 | 25 | [353] Yusuke Takahashi v Polansky, Peter [134] | 4-6,1-6 | |
| Gatineau, Canada | 07/20 23:30 | 27 | [122] Polansky, Peter v Ugo Humbert [257] | 7-6,6-7,6-7 | |
| Gatineau, Canada | 07/19 15:00 | 26 | Polansky, Peter v Krainik, Pavel | 6-2,7-5 | |
| Gatineau, Canada | 07/17 22:00 | 25 | Polansky, Peter v Rodriguez-Pace, Ricardo | 7-6,6-7,7-5 | |
| Challenger Winnipeg | 07/12 18:40 | 26 | [110] Polansky, Peter v Lucas Miedler [319] | 6-7,7-5,1-6 |