St. Petersburg 2021 WTA
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Daria Kasatkina | d. | Margarita Gasparyan | 6-3 2-1 RET |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Daria Kasatkina | d. | Svetlana Kuznetsova | 1-6 6-0 6-2 |
| Margarita Gasparyan | d. | Vera Zvonareva | 6-3 7-6(9) |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Daria Kasatkina | d. | Veronika Kudermetova | 1-6 6-1 6-2 |
| Svetlana Kuznetsova | d. | Jaqueline Cristian | 6-7(5) 6-3 6-3 |
| Vera Zvonareva | d. | Anastasia Gasanova | 6-3 6-1 |
| Margarita Gasparyan | d. | Ekaterina Alexandrova | 6-2 7-5 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Veronika Kudermetova | d. | Kamilla Rakhimova | 7-5 3-6 7-6(5) |
| Daria Kasatkina | d. | Aliaksandra Sasnovich | 5-7 6-3 7-6(2) |
| Svetlana Kuznetsova | d. | Xin Yu Wang | 6-1 7-5 |
| Jaqueline Cristian | d. | Jelena Ostapenko | 6-3 7-6(9) |
| Anastasia Gasanova | d. | Anastasia Pavlyuchenkova | 1-6 7-6(8) 7-6(4) |
| Vera Zvonareva | d. | Fiona Ferro | 6-7(6) 7-5 7-6(2) |
| Margarita Gasparyan | d. | Katerina Siniakova | 6-4 6-4 |
| Ekaterina Alexandrova | d. | Tereza Martincova | 6-3 6-4 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Kamilla Rakhimova | d. | Daria Mironova | 6-1 6-7(2) 6-1 |
| Aliaksandra Sasnovich | d. | Ana Bogdan | 2-6 6-2 6-1 |
| Daria Kasatkina | d. | Clara Tauson | 6-4 7-6(0) |
| Xin Yu Wang | d. | Viktoriya Tomova | 6-1 5-7 7-5 |
| Jaqueline Cristian | d. | Vera Lapko | 6-7(3) 6-4 2-1 RET |
| Jelena Ostapenko | d. | Paula Badosa | 6-2 6-2 |
| Anastasia Pavlyuchenkova | d. | Cagla Buyukakcay | 6-4 6-4 |
| Anastasia Gasanova | d. | Katarina Zavatska | 6-2 6-7(6) 7-5 |
| Vera Zvonareva | d. | Arina Rodionova | 6-1 6-3 |
| Margarita Gasparyan | d. | Kristina Mladenovic | 6-7(1) 6-1 6-1 |
| Katerina Siniakova | d. | Kirsten Flipkens | 6-1 6-2 |
| Tereza Martincova | d. | Stefanie Voegele | 6-0 4-6 6-4 |
Data: Jeff Sackmann / Tennis Abstract — CC BY-NC-SA 4.0