| WTA Valencia | 06/05 13:30 | 19 | [221] Katarina Zavatska v Yana Sizikova [93] | 6-1,6-4 | |
| WTA Valencia | 06/04 16:00 | 26 | [93] Yana Sizikova v Daniela Seguel [297] | 6-4,6-2 | |
| ITF W25 Manacor | 01/23 10:30 | 62 | Julia Middendorf v Yana Sizikova | 6-4,6-0 | |
| ITF W25 Manacor | 01/18 09:00 | 62 | Yana Sizikova v Anastasia Detiuc | 6-2,6-7,6-10 | |
| ITF W25 Manacor | 01/17 11:00 | 62 | Yana Sizikova v Klara Ondrejcekova | 6-0,6-2 | |
| ITF W25 Manacor | 01/16 09:00 | 62 | Amanda Carreras v Yana Sizikova | 6-2,2-6,10-12 | |
| WTA Nur-Sultan | 09/25 11:30 | 26 | [148] Lucia Bronzetti v Yana Sizikova [125] | 6-2,6-4 | |
| ITF W60 Praga | 08/31 08:00 | 62 | [141] Yana Sizikova v Alexandra Bozovic [439] | 6-1,2-6,12-14 | |
| ITF W60 Praga | 08/30 08:00 | 62 | Sina Herrmann v Yana Sizikova | 1-6,1-6 | |
| ITF W60 Praga | 08/29 11:00 | 62 | Nelly Knezkova v Yana Sizikova | 1-6,0-6 | |
| WTA Saint-Malo | 05/02 12:15 | 14 | [99] Yana Sizikova v Tessah Andrianjafitrimo [257] | 6-4,0-6,5-7 | |
| WTA Bogotà | 04/03 18:20 | 45 | [104] Yana Sizikova v Harmony Tan [191] | 1-6,6-4,4-6 | |
| WTA Abu Dhabi | 01/05 07:35 | 64 | [275] Anna Bondar v Yana Sizikova [94] | 6-0,6-1 | |
| ITF W25 Kazan | 01/21 07:00 | 54 | Yana Sizikova v Maria Manilova | 6-4,2-6,5-10 | |
| ITF W25 Kazan | 01/20 11:25 | 54 | Yana Sizikova v Maria Mikhaylova | 6-1,6-4 | |
| WTA Taipei | 11/11 04:35 | 164 | [480] Emily Webley-Smith v Yana Sizikova [98] | 6-2,6-2 | |
| WTA Taipei | 11/10 04:20 | 64 | Alexandra Riley v Yana Sizikova | 4-6,2-6 | |
| ITF W25 St. Etienne | 11/05 10:15 | 54 | [364] Cristiana Ferrando v Yana Sizikova [98] | 7-5,6-2 | |
| ITF W25 St. Etienne | 11/04 17:40 | 54 | [98] Yana Sizikova v Angelica Moratelli [469] | 7-5,6-2 | |
| ITF W60 Nantes | 10/28 09:00 | 54 | Theo Gravouil v Yana Sizikova | 6-3,7-6 | |
| WTA Tashkent | 09/21 10:20 | 64 | [138] Tereza Martincova v Yana Sizikova [103] | 6-3,6-0 | |
| ITF W60 Changsha | 09/05 02:00 | 26 | [216] Natalija Kostic v Yana Sizikova [491] | 6-3,6-0 | |
| ITF W60 Changsha | 09/04 03:45 | 25 | Yana Sizikova v Oleksandra Oliynykova | 6-3,6-4 | |
| ITF W60 Jinan | 08/26 09:00 | 54 | Chang Liu v Yana Sizikova | 6-4,6-1 | |
| ITF W60 Hechingen | 08/08 13:00 | 26 | [483] Yana Sizikova v Laura Ioana Paar [242] | 3-6,2-6 | |
| ITF W60 Hechingen | 08/08 08:00 | 25 | Yana Sizikova v Anna Gabric | 6-0,4-6,6-2 | |
| ITF W25 Perigueux | 06/27 07:00 | 26 | [277] Harmony Tan v Yana Sizikova [432] | 6-4,6-2 | |
| ITF W25 Perigueux | 06/26 07:00 | 25 | Yana Sizikova v Daria Mishina | 6-3,7-5 | |
| ITF W25 Madrid | 06/20 10:45 | 26 | Ana Sofia Sanchez v Yana Sizikova | Retired | |
| ITF W25 Madrid | 06/19 15:55 | 25 | Adithya Karunaratne v Yana Sizikova | 6-7,6-3,6-7 |