Stadium: Court 2 Round: 62 Ground: Clay
| UTR Pro Tennis Series Ricany Women | 2021/09/22 07:30 | Krtenova, Sonja v Denisa Hanakova | 0-6,3-6 |
| UTR Pro Tennis Series Ricany Women | 2021/09/21 09:00 | Krtenova, Sonja v Polanska, Tereza | 6-4,7-6 |
| UTR Pro Tennis Series Ricany Women | 2021/09/20 09:00 | Barbora Michalkova v Krtenova, Sonja | 6-2,5-3 |
| UTR Pro Tennis Series Ricany Women | 2021/09/19 08:30 | Krtenova, Sonja v Kristina Zamecnikova | 3-6,4-5 |
| ITF W25 Jablonec nad Nisou | 2021/09/13 09:00 | Detiuc, Anastasia v Krtenova, Sonja | 2-6,6-3,10-6 |
| ITF W25 Frydek Mistek | 2021/09/05 08:00 | Veronika Erjavec v Krtenova, Sonja | 6-4,6-1 |
| ITF W60 Prague | 2021/08/29 09:30 | Lena Papadakis v Krtenova, Sonja | 6-0,6-1 |
| ITF W60 Prerov | 2021/08/22 09:00 | Maileen Nuudi v Krtenova, Sonja | 3-6,6-3,10-4 |
| ITF W15 Chornomorsk | 2021/08/23 07:15 | Gaggini, Valentina v Anastasiya Zaparyniuk | 6-4,6-1 |
| ITF W25 Kyiv | 2021/07/18 07:00 | Diletta Cherubini v Anastasiya Zaparyniuk | 6-2,6-0 |
| ITF - W15 Antalya | 2021/06/30 06:30 | Claudia Hoste Ferrer v Anastasiya Zaparyniuk | 6-2,4-6,6-1 |
| ITF - W15 Antalya | 2021/06/29 06:30 | Natsvlishvili, Nino v Anastasiya Zaparyniuk | 6-1,2-6,6-10 |
| ITF - W15 Antalya | 2021/06/28 09:20 | Anastasiya Zaparyniuk v Beatris Spasova | 2-6,7-5,10-7 |
| ITF - W15 Antalya | 2021/06/21 07:00 | Anastasiya Zaparyniuk v Alba Rey Garcia | 4-6,1-6 |
| ITF - W15 Antalya | 2021/06/15 07:30 | Anastasiya Zaparyniuk v Dia Evtimova | 6-7,4-6 |
| ITF - W15 Antalya | 2021/06/06 07:30 | Melis Ayda Uyar v Anastasiya Zaparyniuk | 6-3,5-7,10-8 |