| Challenger Winnipeg | 07/11 23:35 | 25 | Polansky, Peter v Krainik, Pavel | 7-6,7-6 | |
| Wimbledon, London, Great Britain | 07/02 10:30 | 23 | [110] Polansky, Peter v Dennis Novak [171] | 2-6,3-6,6-7 | |
| Wimbledon Qual | 06/28 10:00 | 45 | [110] Polansky, Peter v Jason Kubler [147] | 6-7,3-6,7-6,4-6 | |
| Wimbledon Qual | 06/26 15:20 | 45 | [110] Polansky, Peter v Davidovich Fokina, Alejandro [348] | 7-5,6-2 | |
| Wimbledon Qual | 06/25 12:00 | 44 | [112] Polansky, Peter v Yang, Tsung-Hua [217] | 4-6,6-3,6-2 | |
| Ilkley, Great Britain | 06/22 10:00 | 27 | [112] Polansky, Peter v Jason Kubler [162] | 6-3,6-7,2-6 | |
| Ilkley, Great Britain | 06/21 11:35 | 26 | [112] Polansky, Peter v Tatsuma Ito [167] | 6-2,6-4 | |
| Ilkley, Great Britain | 06/19 16:30 | 25 | [112] Polansky, Peter v Akira Santillan [210] | 6-2,6-7,6-1 | |
| Challenger - Nottingham | 06/15 13:40 | 27 | [119] Polansky, Peter v Alex De Minaur [96] | 3-6,6-3,2-6 | |
| Challenger - Nottingham | 06/14 16:00 | 26 | [119] Polansky, Peter v Robert, Stephane [174] | 6-3,6-4 | |
| Challenger - Nottingham | 06/11 10:00 | 25 | Polansky, Peter v George Loffhagen | 3-6,6-1,6-3 | |
| Surbiton, Great Britain | 06/05 10:00 | 25 | [107] Mackenzie McDonald v Polansky, Peter [124] | 6-7,7-5,6-3 | |
| French Open, Paris, France | 05/29 17:20 | 23 | [124] Polansky, Peter v Pierre-Hugues Herbert [87] | 3-6,6-4,2-6,2-6 | |
| French Open Qual | 05/25 10:25 | 46 | [125] Polansky, Peter v Jozef Kovalik [147] | 6-7,6-7 | |
| French Open Qual | 05/24 08:00 | 45 | [125] Polansky, Peter v Krstin, Pedja [247] | 6-4,6-2 | |
| French Open Qual | 05/22 09:45 | 44 | [125] Polansky, Peter v Norbert Gombos [169] | 2-6,7-6,6-2 | |
| Challenger Bordeaux | 05/17 11:00 | 26 | [241] Gregoire Barrere v Polansky, Peter [126] | 6-1,6-1 | |
| Challenger Bordeaux | 05/15 09:45 | 25 | [126] Polansky, Peter v Thiago Monteiro [114] | 6-4,6-4 | |
| Challenger - Aix en Provence | 05/08 08:30 | 25 | [125] Polansky, Peter v Tatlot, Johan Sebastien [363] | 5-7,7-5,3-6 | |
| Challenger - Savannah | 04/30 22:40 | 25 | [217] Bellucci, Thomaz v Polansky, Peter [124] | 6-3,6-1 | |
| Challenger - Tallahassee | 04/25 15:00 | 26 | [202] Londero, Juan Ignacio v Polansky, Peter [124] | 6-3,6-3 | |
| Challenger - Tallahassee | 04/24 17:05 | 25 | [371] Sorgi, Joao Pedro v Polansky, Peter [124] | 6-7,6-7 | |
| Challenger - Sarasota | 04/19 15:40 | 26 | [218] Londero, Juan Ignacio v Polansky, Peter [124] | 6-4,6-3 | |
| Challenger - Sarasota | 04/17 22:00 | 25 | [253] Arguello, Facundo v Polansky, Peter [124] | Retired | |
| Challenger Le Gosier | 03/29 20:15 | 26 | [236] Smith, John-Patrick v Polansky, Peter [126] | 7-6,6-3 | |
| Challenger Le Gosier | 03/27 19:30 | 25 | Rochette, Laurent v Polansky, Peter | 0-6,5-7 | |
| Miami, USA, Qualifying | 03/20 16:00 | 45 | [115] Dutra Silva, Rogerio v Polansky, Peter [126] | 6-3,6-7,6-4 | |
| Miami, USA, Qualifying | 03/19 16:35 | 44 | [204] Opelka, Reilly v Polansky, Peter [126] | 6-7,3-6 | |
| ATP - Indian Wells | 03/11 00:15 | 24 | Adrian Mannarino v Polansky, Peter | 6-1,6-4 | |
| ATP - Indian Wells | 03/09 00:50 | 23 | Marius Copil v Polansky, Peter | 6-7,7-6,6-7 |