St. Petersburg 2018 WTA
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Petra Kvitova | d. | Kristina Mladenovic | 6-1 6-2 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Petra Kvitova | d. | Julia Goerges | 7-5 4-6 6-2 |
| Kristina Mladenovic | d. | Daria Kasatkina | 3-6 6-3 6-2 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Petra Kvitova | d. | Jelena Ostapenko | 6-0 6-2 |
| Julia Goerges | d. | Elena Rybakina | 6-3 6-3 |
| Kristina Mladenovic | d. | Katerina Siniakova | 6-4 6-3 |
| Daria Kasatkina | d. | Caroline Wozniacki | 7-6(2) 6-3 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Jelena Ostapenko | d. | Vera Zvonareva | 7-6(6) 6-3 |
| Petra Kvitova | d. | Irina Camelia Begu | 6-3 1-6 6-1 |
| Elena Rybakina | d. | Caroline Garcia | 4-6 7-6(6) 7-6(5) |
| Julia Goerges | d. | Roberta Vinci | 7-5 6-0 |
| Katerina Siniakova | d. | Kate Makarova | 7-6(7) 7-5 |
| Kristina Mladenovic | d. | Dominika Cibulkova | 6-4 6-4 |
| Daria Kasatkina | d. | Alize Cornet | 6-2 6-1 |
| Caroline Wozniacki | d. | Anastasia Potapova | 6-0 6-1 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Vera Zvonareva | d. | Kiki Bertens | 6-4 0-0 RET |
| Irina Camelia Begu | d. | Andrea Petkovic | 7-6(5) 6-1 |
| Petra Kvitova | d. | Elena Vesnina | 6-2 6-0 |
| Elena Rybakina | d. | Timea Bacsinszky | 6-4 6-3 |
| Roberta Vinci | d. | Tereza Martincova | 6-2 6-2 |
| Julia Goerges | d. | Maria Sakkari | 6-2 7-6(5) |
| Kate Makarova | d. | Anastasia Pavlyuchenkova | 6-4 6-4 |
| Katerina Siniakova | d. | Donna Vekic | 6-3 2-6 6-4 |
| Dominika Cibulkova | d. | Sorana Cirstea | 7-5 6-2 |
| Daria Kasatkina | d. | Viktoria Hruncakova | 1-6 6-4 6-1 |
| Alize Cornet | d. | Mona Barthel | 6-3 7-5 |
| Anastasia Potapova | d. | Tatjana Maria | 6-2 6-4 |
Data: Jeff Sackmann / Tennis Abstract — CC BY-NC-SA 4.0