# 2019 St. Petersburg Open – Singles

Dominic Thiem was the defending champion, but chose to compete in the Laver Cup instead.
Daniil Medvedev won the title, defeating Borna Ćorić in the final, 6–3, 6–1. Medvedev became the first active player outside the Big Four to reach the final in five consecutive tournaments.

## Seeds

The top four seeds receive a bye into the second round.
* Daniil Medvedev (champion)
* Karen Khachanov (second round)
* Matteo Berrettini (quarterfinals)
* Borna Ćorić (final)
* Andrey Rublev (quarterfinals)
* Mikhail Kukushkin (quarterfinals)
* Adrian Mannarino (second round)
* Casper Ruud (quarterfinals)

## 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 | Finals | Finals | Finals | Finals |
| 1 | Daniil Medvedev | 7 | 7 | | | | | |
| Q | Egor Gerasimov | 5 | 5 | | | | | |
| Q | Egor Gerasimov | 5 | 5 | | 1 | Daniil Medvedev | 6 | 6 |
| | | | | | 4 | Borna Ćorić | 3 | 1 |
| 4 | Borna Ćorić | 3 | 7$^7$ | 6 | 4 | Borna Ćorić | 3 | 1 |
| | João Sousa | 6 | 6$^5$ | 1 | | | | |

### Top 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | D Medvedev | 7 | 6 | | | | | | | | | |
| WC | E Donskoy | 6 | 6 | | WC | E Donskoy | 5 | 3 | | | | | | | | | |
| LL | M Viola | 2 | 1 | | | | | | | 1 | D Medvedev | 6 | 7 | | | | |
| WC | D Sela | 3 | 0 | | | | | | | 5 | A Rublev | 4 | 5 | | | | |
| | R Berankis | 6 | 6 | | | R Berankis | 4 | 7$^7$ | 1 | | | | | | | | |
| Q | I Ivashka | 6 | 0 | 4 | 5 | A Rublev | 6 | 6$^5$ | 6 | | | | | | | | |
| 5 | A Rublev | 4 | 6 | 6 | | | | | | | | | | 1 | D Medvedev | 7 | 7 |
| | | | | | | | | | | | | | | Q | E Gerasimov | 5 | 5 |
| | | | | | 3 | M Berrettini | 6 | 6 | | | | | | | | | |
| | R Carballés Baena | 6 | 7 | | | R Carballés Baena | 1 | 2 | | | | | | | | | |
| | M Kližan | 2 | 5 | | | | | | | 3 | M Berrettini | 6$^5$ | 6$^3$ | | | | |
| Q | L Rosol | 5 | 2 | | | | | | | Q | E Gerasimov | 7$^7$ | 7$^7$ | | | | |
| Q | E Gerasimov | 7 | 6 | | Q | E Gerasimov | 6 | 6 | | | | | | | | | |
| | S Travaglia | 5 | 2 | | 7 | A Mannarino | 3 | 1 | | | | | | | | | |
| 7 | A Mannarino | 7 | 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 |
| 8 | C Ruud | 6$^3$ | 6 | 6 | | | | | | | | | | | | | | | |
| | A Bublik | 7$^7$ | 4 | 2 | 8 | C Ruud | 6 | 6 | | | | | | | | | | | |
| | S Caruso | 2 | 6 | 6 | | S Caruso | 3 | 4 | | | | | | | | | | | |
| | T Fabbiano | 6 | 3 | 3 | | | | | | 8 | C Ruud | 6 | 5 | 3 | | | | | |
| Q | A Vatutin | 5 | 1 | | | | | | | 4 | B Ćorić | 3 | 7 | 6 | | | | | |
| | M Fucsovics | 7 | 6 | | | M Fucsovics | 7$^7$ | 5 | 0$^r$ | | | | | | | | | | |
| | | | | | 4 | B Ćorić | 6$^5$ | 7 | 3 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 4 | B Ćorić | 3 | 7$^7$ | 6 |
| 6 | M Kukushkin | 6 | 7$^7$ | | | | | | | | | | | | | J Sousa | 6 | 6$^5$ | 1 |
| WC | J Sinner | 3 | 6$^4$ | | 6 | M Kukushkin | 7$^7$ | 6 | | | | | | | | | | | |
| PR | J Tipsarević | 5 | 6 | 1$^r$ | LL | D Džumhur | 6$^2$ | 2 | | | | | | | | | | | |
| LL | D Džumhur | 7 | 3 | 3 | | | | | | 6 | M Kukushkin | 6$^8$ | 2 | | | | | | |
| | J Sousa | 6 | 6 | | | | | | | | J Sousa | 7$^{10}$ | 6 | | | | | | |
| PR | J Kovalík | 2 | 3 | | | J Sousa | 7$^7$ | 6 | | | | | | | | | | | |
| | | | | | 2 | K Khachanov | 6$^2$ | 4 | | | | | | | | | | | |

## Qualifying
### Seeds

* Damir Džumhur (qualifying competition, lucky loser)
* Egor Gerasimov (qualified)
* Ernests Gulbis (qualifying competition)
* Ilya Ivashka (qualified)
* Lukáš Rosol (qualified)
* Viktor Troicki (withdrew)
* Alexey Vatutin (qualified)
* Matteo Viola (qualifying competition, lucky loser)

### Qualifiers

* Lukáš Rosol
* Egor Gerasimov
* Alexey Vatutin
* Ilya Ivashka

### Lucky losers

* Damir Džumhur
* Matteo Viola

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Damir Džumhur | 6 | 7$^7$ | | | | | | |
| Alt | Aslan Karatsev | 3 | 6$^5$ | | | | | | |
| Alt | Aslan Karatsev | 3 | 6$^5$ | | 1 | Damir Džumhur | 6 | 6$^8$ | 4 |
| | | | | | 5 | Lukáš Rosol | 4 | 7$^{10}$ | 6 |
| | Evgeny Karlovskiy | 4 | 6 | 4 | 5 | Lukáš Rosol | 4 | 7$^{10}$ | 6 |
| 5 | Lukáš Rosol | 6 | 3 | 6 | | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Egor Gerasimov | 6 | 6 | | | | | |
| | Alejandro Tabilo | 0 | 4 | | | | | |
| | Alejandro Tabilo | 0 | 4 | 2 | Egor Gerasimov | 7 | 6$^4$ | 6 |
| | | | | | Roman Safiullin | 5 | 7$^7$ | 4 |
| | Roman Safiullin | 6 | 6 | | Roman Safiullin | 5 | 7$^7$ | 4 |
| Alt | Konstantin Kravchuk | 4 | 1 | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Ernests Gulbis | 6 | 6 | | | | | | |
| PR | Amir Weintraub | 1 | 0 | | | | | | |
| PR | Amir Weintraub | 1 | 0 | | 3 | Ernests Gulbis | 6 | 3 | 2 |
| | | | | | 7 | Alexey Vatutin | 3 | 6 | 6 |
| | Aleksandr Nedovyesov | 6 | 3 | 5 | 7 | Alexey Vatutin | 3 | 6 | 6 |
| 7 | Alexey Vatutin | 1 | 6 | 7 | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Ilya Ivashka | 6 | 6 | | | | | |
| WC | Evgenii Tiurnev | 1 | 2 | | | | | |
| WC | Evgenii Tiurnev | 1 | 2 | | 4 | Ilya Ivashka | 6 | 6 |
| | | | | | 8 | Matteo Viola | 4 | 2 |
| WC | Alexander Vasilenko | 2 | 7 | 2 | 8 | Matteo Viola | 4 | 2 |
| 8 | Matteo Viola | 6 | 5 | 6 | | | | |