# 2017 St. Petersburg Ladies' Trophy – Singles

The 2017 St. Petersburg Ladies' Trophy – Singles season began with Roberta Vinci (defending champion from the previous year) losing out in the quarterfinals to unseeded Kristina Mladenovic.
Mladenovic went on to win the season and achieve her first WTA singles title, defeating Yulia Putintseva in the final, 6–2, 6–7$^{(3–7)}$, 6–4.

## Seeds

The top four seeds received a bye into the second round.
* Simona Halep (quarterfinals, withdrew)
* Dominika Cibulková (semifinals)
* Svetlana Kuznetsova (quarterfinals)
* Venus Williams (second round)
* Elena Vesnina (quarterfinals)
* Roberta Vinci (quarterfinals)
* Kiki Bertens (first round)
* Daria Kasatkina (second round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| WC | Natalia Vikhlyantseva | 6 | 2 | 2 | | | | |
| | Kristina Mladenovic | 4 | 6 | 6 | | | | |
| | Kristina Mladenovic | 4 | 6 | 6 | Kristina Mladenovic | 6 | 6$^3$ | 6 |
| | | | | | Yulia Putintseva | 2 | 7$^7$ | 4 |
| | Yulia Putintseva | 3 | 6 | 6 | Yulia Putintseva | 2 | 7$^7$ | 4 |
| 2 | Dominika Cibulková | 6 | 4 | 4 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | S Halep | 6 | 7$^7$ | | | | | | | | | |
| | A Konjuh | 1 | 6 | 6 | | A Konjuh | 4 | 6$^2$ | | | | | | | | | |
| | M Niculescu | 6 | 3 | 2 | | | | | 1 | S Halep | | | | | | | |
| | Y Shvedova | 3 | 4 | | | | | | WC | N Vikhlyantseva | w/o | | | | | | |
| WC | N Vikhlyantseva | 6 | 6 | | WC | N Vikhlyantseva | 7$^7$ | 6 | | | | | | | | | |
| | B Bencic | 2 | 5 | | 8 | D Kasatkina | 6$^4$ | 2 | | | | | | | | | |
| 8 | D Kasatkina | 6 | 7 | | | | | | | | | | WC | N Vikhlyantseva | 6 | 2 | 2 |
| | | | | | | | | | | | | | | K Mladenovic | 4 | 6 | 6 |
| | | | | | 4 | V Williams | 3 | 1 | | | | | | | | | |
| Q | E Mertens | 6$^5$ | 4 | | | K Mladenovic | 6 | 6 | | | | | | | | | |
| | K Mladenovic | 7$^7$ | 6 | | | | | | | K Mladenovic | 6 | 6 | | | | | |
| Q | A Petkovic | 6 | 7 | | | | | | 6 | R Vinci | 1 | 4 | | | | | |
| | I-C Begu | 1 | 5 | | Q | A Petkovic | 4 | 4 | | | | | | | | | |
| | T Babos | 3 | 6 | 4 | 6 | R Vinci | 6 | 6 | | | | | | | | | |
| 6 | R Vinci | 6 | 3 | 6 | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | K Bertens | 5 | 6 | 4 | | | | | | | | | | | | | | | |
| | A Beck | 7 | 3 | 6 | | A Beck | 4 | 0 | | | | | | | | | | | |
| | Y Putintseva | 6 | 1 | | | Y Putintseva | 6 | 6 | | | | | | | | | | | |
| | J Larsson | 0 | 0$^r$ | | | | | | | | Y Putintseva | 6 | 6$^4$ | 7 | | | | | |
| WC | A Kalinskaya | 4 | 5 | | | | | | | 3 | S Kuznetsova | 3 | 7$^7$ | 5 | | | | | |
| | D Gavrilova | 6 | 7 | | | D Gavrilova | 1 | 3 | | | | | | | | | | | |
| | | | | | 3 | S Kuznetsova | 6 | 6 | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | Y Putintseva | 3 | 6 | 6 |
| 5 | E Vesnina | 6 | 6 | | | | | | | | | | | | 2 | D Cibulková | 6 | 4 | 4 |
| | E Makarova | 3 | 1 | | 5 | E Vesnina | 2 | 6 | 6 | | | | | | | | | | |
| Q | K Flipkens | 4 | 2 | | | A Cornet | 6 | 3 | 3 | | | | | | | | | | |
| | A Cornet | 6 | 6 | | | | | | | 5 | E Vesnina | 3 | 3 | | | | | | |
| | J Ostapenko | 0 | 4 | | | | | | | 2 | D Cibulková | 6 | 6 | | | | | | |
| LL | D Vekić | 6 | 6 | | LL | D Vekić | 2 | 2 | | | | | | | | | | | |
| | | | | | 2 | D Cibulková | 6 | 6 | | | | | | | | | | | |

## Qualifying
### Seeds

* Andrea Petkovic (qualified)
* Kirsten Flipkens (qualified)
* Camila Giorgi (withdrew due to a lower back injury)
* Elise Mertens (qualified)
* Denisa Allertová (second round)
* Irina Khromacheva (first round)
* Donna Vekić (qualifying competition, lucky loser)
* Patricia Maria Țig (first round, retired)
* Ekaterina Alexandrova (second round)

### Qualifiers

* Andrea Petkovic
* Kirsten Flipkens
* Stefanie Vögele (withdrew)
* Elise Mertens

### Lucky losers

* Donna Vekić

### Draw
#### First qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Andrea Petkovic | 7$^7$ | 6 | | | | | | | | |
| | Lesley Kerkhove | 6$^3$ | 1 | | | | | | | | |
| | Lesley Kerkhove | 6$^3$ | 1 | 1 | Andrea Petkovic | 6 | 6 | | | | |
| | | | | | Barbara Haas | 3 | 4 | | | | |
| WC | Valeriya Pogrebnyak | 0 | 3 | | Barbara Haas | 3 | 4 | | | | |
| | Barbara Haas | 6 | 6 | | | | | | | | |
| | Barbara Haas | 6 | 6 | | | | | 1 | Andrea Petkovic | 6 | 6 |
| | | | | | | | | | Anastasiya Komardina | 2 | 3 |
| | Ksenia Lykina | 1 | 3 | | | | | | | | | Anastasiya Komardina | 2 | 3 |
| | Anastasiya Komardina | 6 | 6 | | | | | | | | |
| | Anastasiya Komardina | 6 | 6 | | Anastasiya Komardina | 6 | 6 | | | | |
| | | | | | Sabina Sharipova | 3 | 4 | | | | |
| | Sabina Sharipova | 6 | 4 | | Sabina Sharipova | 3 | 4 | | | | |
| 8 | Patricia Maria Țig | 2 | 1$^r$ | | | | | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Kirsten Flipkens | 6 | 6 | | | | | | | | | | | |
| | Viktoriya Tomova | 1 | 2 | | | | | | | | | | | |
| | Viktoriya Tomova | 1 | 2 | | 2 | Kirsten Flipkens | 3 | 6 | 6 | | | | | |
| | | | | | | Paula Cristina Gonçalves | 6 | 2 | 0 | | | | | |
| | Paula Cristina Gonçalves | 6 | 6 | | | Paula Cristina Gonçalves | 6 | 2 | 0 | | | | | |
| | Veronika Kudermetova | 3 | 4 | | | | | | | | | | | |
| | Veronika Kudermetova | 3 | 4 | | | | | | | 2 | Kirsten Flipkens | 6 | 5 | 7 |
| | | | | | | | | | | 7 | Donna Vekić | 4 | 7 | 5 |
| | Cindy Burger | 6 | 2 | 6$^3$ | | | | | | | | | | | 7 | Donna Vekić | 4 | 7 | 5 |
| | Viktoria Kamenskaya | 2 | 6 | 7$^7$ | | | | | | | | | | |
| | Viktoria Kamenskaya | 2 | 6 | 7$^7$ | | Viktoria Kamenskaya | 2 | 1 | | | | | | |
| | | | | | 7 | Donna Vekić | 6 | 6 | | | | | | |
| | Aryna Sabalenka | 4 | 2 | | 7 | Donna Vekić | 6 | 6 | | | | | | |
| 7 | Donna Vekić | 6 | 6 | | | | | | | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition |
| 9 | Ekaterina Alexandrova | 6 | 7 | | | | | | | | |
| | Aliaksandra Sasnovich | 4 | 5 | | | | | | | | |
| | Aliaksandra Sasnovich | 4 | 5 | | 9 | Ekaterina Alexandrova | 5 | 1 | | | |
| | | | | | | Elitsa Kostova | 7 | 6 | | | |
| | Isabella Shinikova | 5 | 6 | 6$^5$ | | Elitsa Kostova | 7 | 6 | | | |
| | Elitsa Kostova | 7 | 2 | 7$^7$ | | | | | | | |
| | Elitsa Kostova | 7 | 2 | 7$^7$ | | | | | Elitsa Kostova | 3 | 4 |
| | | | | | | | | | Stefanie Vögele | 6 | 6 |
| WC | Valeriya Strakhova | 0 | 2 | | | | | | | | | Stefanie Vögele | 6 | 6 |
| | Stefanie Vögele | 6 | 6 | | | | | | | | |
| | Stefanie Vögele | 6 | 6 | | | Stefanie Vögele | 7 | 6 | | | |
| | | | | | 5 | Denisa Allertová | 5 | 2 | | | |
| WC | Tena Lukas | 6 | 6$^1$ | 5 | 5 | Denisa Allertová | 5 | 2 | | | |
| 5 | Denisa Allertová | 2 | 7$^7$ | 7 | | | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Elise Mertens | 6 | 6 | | | | | | | | | | | |
| | Sílvia Soler Espinosa | 4 | 0 | | | | | | | | | | | |
| | Sílvia Soler Espinosa | 4 | 0 | | 4 | Elise Mertens | 4 | 6 | 5 | | | | | |
| | | | | | | Tereza Martincová | 6 | 4 | 5$^d$ | | | | | |
| WC | Olesya Pervushina | 2 | 4 | | | Tereza Martincová | 6 | 4 | 5$^d$ | | | | | |
| | Tereza Martincová | 6 | 6 | | | | | | | | | | | |
| | Tereza Martincová | 6 | 6 | | | | | | | 4 | Elise Mertens | 6 | 2 | 6 |
| | | | | | | | | | | | Maryna Zanevska | 2 | 6 | 4 |
| PR | Michaëlla Krajicek | 1 | 2 | | | | | | | | | | | | Maryna Zanevska | 2 | 6 | 4 |
| | Maryna Zanevska | 6 | 6 | | | | | | | | | | | |
| | Maryna Zanevska | 6 | 6 | | | Maryna Zanevska | 7$^8$ | 7$^9$ | | | | | | |
| | | | | | Alt | Gabriela Dabrowski | 6$^6$ | 6$^7$ | | | | | | |
| Alt | Gabriela Dabrowski | 4 | 6 | 6 | Alt | Gabriela Dabrowski | 6$^6$ | 6$^7$ | | | | | | |
| 6 | Irina Khromacheva | 6 | 3 | 2 | | | | | | | | | | |