Stadium: Court 5 Round: 62 Ground: Clay
| UTR Pro Tennis Series Ricany Women | 2021/07/01 08:00 | Zdena Safarova v Nelly Knezkova | 6-4,6-3 |
| UTR Pro Tennis Series Ricany Women | 2021/06/29 13:30 | Oleksandra Oliynykova v Nelly Knezkova | 6-2,0-6,5-4 |
| UTR Pro Tennis Series Ricany Women | 2021/06/28 11:47 | Nelly Knezkova v Denisa Pospisilova | 6-0,5-1 |
| UTR Pro Tennis Series Ricany Women | 2021/06/26 10:00 | Nelly Knezkova v Ludmila Kareisova | 5-7,1-6 |
| UTR Pro Tennis Series Ricany Women | 2021/06/24 08:00 | Karolina Kubanova v Nelly Knezkova | 3-4 |
| UTR Pro Tennis Series Ricany Women | 2021/06/23 09:30 | Sarka Richterova v Nelly Knezkova | 6-4,6-5 |
| UTR Pro Tennis Series Ricany Women | 2021/06/21 11:00 | Veronika Vlkovska v Nelly Knezkova | 7-5,5-2 |
| ITF W15 Sibenik | 2021/05/25 09:40 | Mina Hodzic v Nelly Knezkova | 6-3,5-7,10-3 |
| WTA Saint-Malo | 2021/05/02 12:15 | Yana Sizikova v Tessah Andrianjafitrimo | 6-4,0-6,5-7 |
| WTA Bogota | 2021/04/03 18:20 | Yana Sizikova v Harmony Tan | 1-6,6-4,4-6 |
| WTA Abu Dhabi | 2021/01/05 07:35 | Anna Bondar v Yana Sizikova | 6-0,6-1 |
| ITF W25 Kazan | 2020/01/21 07:00 | Yana Sizikova v Maria Manilova | 6-4,2-6,5-10 |
| ITF W25 Kazan | 2020/01/20 11:25 | Yana Sizikova v Maria Mikhaylova | 6-1,6-4 |
| WTA Taipei | 2019/11/11 04:35 | Emily Webley-Smith v Yana Sizikova | 6-2,6-2 |
| WTA Taipei | 2019/11/10 04:20 | Alexandra Riley v Yana Sizikova | 4-6,2-6 |
| ITF W25 St. Etienne | 2019/11/05 10:15 | Cristiana Ferrando v Yana Sizikova | 7-5,6-2 |