| ITF Women Clermond-Ferrand Qual | 09/24 11:05 | 54 | [319] Polina Leykina v Mathilde Armitano [463] | 6-3,4-6,6-4 | |
| ITF Women St. Petersburg | 09/19 09:30 | 25 | [319] Polina Leykina v Nigina Abduraimova [309] | 1-6,6-2,3-6 | |
| ITF Women Batumi | 09/14 06:00 | 27 | [284] Nigina Abduraimova v Polina Leykina [322] | 6-2,6-1 | |
| ITF Women Batumi | 09/13 06:00 | 26 | [322] Polina Leykina v Anastasia Frolova [307] | 4-6,6-2,6-1 | |
| ITF Women Batumi | 09/11 06:00 | 25 | [399] Polina Leykina v Amina Anshba [495] | 6-3,6-4 | |
| ITF Women Almaty | 09/02 05:00 | 29 | [399] Polina Leykina v Akgul Amanmuradova [400] | 6-3,6-3 | |
| ITF Women Almaty | 09/01 05:00 | 28 | [407] Vlada Ekshibarova v Polina Leykina [399] | 3-6,1-6 | |
| ITF Women Almaty | 08/31 05:00 | 27 | [330] Anna Morgina v Polina Leykina [399] | 2-6,6-3,2-6 | |
| ITF Women Almaty | 08/30 06:00 | 26 | Komola Umarova v Polina Leykina | 5-7,3-6 | |
| ITF Women Almaty | 08/28 05:00 | 25 | Aleksandra Kuznetsova v Polina Leykina | 1-6,4-6 | |
| ITF Women Moscow | 08/17 10:05 | 26 | Polina Leykina v Anna Danilina | 6-7,2-6 | |
| ITF Women Moscow | 08/16 07:00 | 25 | Polina Leykina v Elina Avanesyan | 4-6,6-3,6-2 | |
| ITF Women Moscow | 08/13 07:00 | 29 | Polina Leykina v Iryna Shymanovich | 2-6,4-6 | |
| ITF Women Moscow | 08/12 09:10 | 28 | [412] Polina Leykina v Aleksandra Pospelova [325] | 6-1,6-0 | |
| ITF Women Moscow | 08/11 10:40 | 27 | Polina Leykina v Daria Kruzhkova | 6-7,6-0,6-2 | |
| ITF Women Moscow | 08/10 08:45 | 26 | Polina Leykina v Anna Ukolova | 6-0,6-3 | |
| ITF Women Moscow | 08/09 07:00 | 25 | [412] Polina Leykina v Angelina Gabueva [458] | 6-1,6-2 | |
| ITF Women Moscow Qual | 08/07 08:30 | 54 | Polina Leykina v Aleksandra Kulik | 7-5,6-3 | |
| ITF Women Darmstadt | 07/05 10:00 | 25 | [252] Magdalena Frech v Polina Leykina [347] | 7-6,6-4 | |
| ITF Women Stuttgart | 06/27 13:55 | 25 | [347] Polina Leykina v Bibiane Schoofs [314] | 1-6,4-6 | |
| ITF Women Lenzerheide | 06/22 13:10 | 26 | [381] Elyne Boeykens v Polina Leykina [345] | 6-3,5-7,6-3 | |
| ITF Women Lenzerheide | 06/21 08:00 | 25 | Angelique Svinos v Polina Leykina | 3-6,1-6 | |
| ITF Women Essen | 06/06 12:10 | 25 | [356] Marina Melnikova v Polina Leykina [340] | 6-3,7-5 | |
| WTA Strasbourg Qual | 05/19 11:05 | 25 | [150] Elitsa Kostova v Polina Leykina [334] | 6-4,4-6,6-2 | |
| ITF Women Dunakeszi | 05/09 13:50 | 25 | [168] Tereza Smitkova v Polina Leykina [332] | 3-6,6-2,6-2 | |
| ITF Women Wiesbaden | 05/03 11:00 | 25 | [327] Polina Leykina v Anna Zaja [265] | 2-6,3-6 | |
| ITF Women Santa Margherita | 04/11 15:00 | 25 | [355] Cristiana Ferrando v Polina Leykina [321] | 6-3,6-0 | |
| ITF Women Santa Margherita | 04/06 09:00 | 26 | [320] Polina Leykina v Daniela Hantuchova [224] | 3-6,3-6 | |
| ITF Women Santa Margherita | 04/04 14:20 | 25 | [292] Laura Schaeder v Polina Leykina [320] | 3-6,2-6 | |
| ITF Women Santa Margherita Qual | 03/27 08:00 | 44 | [305] Polina Leykina v Vivien Juhaszova [428] | 4-6,3-6 |