# 2023 Erste Bank Open – Singles

Jannik Sinner defeated the defending champion Daniil Medvedev in the final, 7–6$^{(9–7)}$, 4–6, 6–3 to win the singles tennis title at the 2023 Vienna Open. It was his tenth ATP Tour singles title.

## Seeds

* Daniil Medvedev (final)
* Jannik Sinner (champion)
* Andrey Rublev (semifinals)
* Stefanos Tsitsipas (semifinals)
* Alexander Zverev (quarterfinals)
* Tommy Paul (second round)
* Frances Tiafoe (quarterfinals)
* Karen Khachanov (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 | Final | Final | Final | Final | Final |
| 1 | Daniil Medvedev | 6 | 7$^8$ | | | | | |
| 4 | Stefanos Tsitsipas | 4 | 6$^6$ | | | | | |
| 4 | Stefanos Tsitsipas | 4 | 6$^6$ | 1 | Daniil Medvedev | 6$^7$ | 6 | 3 |
| | | | | 2 | Jannik Sinner | 7$^9$ | 4 | 6 |
| 3 | Andrey Rublev | 5 | 6$^5$ | 2 | Jannik Sinner | 7$^9$ | 4 | 6 |
| 2 | Jannik Sinner | 7 | 7$^7$ | | | | | |

### Top half

| 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 |
| 1 | D Medvedev | 6 | 6 | | | | | | | | | | | | | | |
| | A Fils | 4 | 2 | 1 | D Medvedev | 3 | 6 | 6 | | | | | | | | | |
| | G Dimitrov | 6 | 6 | | G Dimitrov | 6 | 2 | 4 | | | | | | | | | |
| | L Musetti | 3 | 4 | | | | | | 1 | D Medvedev | 6 | 3 | 6 | | | | |
| | JJ Wolf | 4 | 4 | | | | | | 8 | K Khachanov | 3 | 6 | 3 | | | | |
| | J Lehečka | 6 | 6 | | J Lehečka | 3 | 1 | | | | | | | | | | |
| | R Safiullin | 4 | 4 | 8 | K Khachanov | 6 | 6 | | | | | | | | | | |
| 8 | K Khachanov | 6 | 6 | | | | | | | | | | | 1 | D Medvedev | 6 | 7$^8$ |
| 4 | S Tsitsipas | 7$^7$ | 6 | | | | | | | | | | | 4 | S Tsitsipas | 4 | 6$^6$ |
| WC | D Thiem | 6$^5$ | 4 | 4 | S Tsitsipas | 6 | 4 | 7 | | | | | | | | | |
| | A Vukic | 3 | 1 | Q | T Macháč | 3 | 6 | 5 | | | | | | | | | |
| Q | T Macháč | 6 | 6 | | | | | | 4 | S Tsitsipas | 7$^7$ | 7 | | | | | |
| SE | A Karatsev | 3 | 3 | | | | | | WC | B Gojo | 6$^4$ | 5 | | | | | |
| WC | B Gojo | 6 | 6 | WC | B Gojo | 6 | 6 | | | | | | | | | | |
| Q | A Müller | 3 | 1 | 6 | T Paul | 3 | 4 | | | | | | | | | | |
| 6 | T Paul | 6 | 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 |
| 5 | A Zverev | 6 | 6 | | | | | | | | | | | | | | | |
| WC | S Ofner | 4 | 1 | | 5 | A Zverev | 6 | 6 | | | | | | | | | | |
| | C Norrie | 7$^9$ | 4 | 6 | | C Norrie | 2 | 4 | | | | | | | | | | |
| Q | F Misolic | 6$^7$ | 6 | 3 | | | | | | 5 | A Zverev | 1 | 7$^7$ | 3 | | | | |
| Q | A Ramos Viñolas | 6$^4$ | 6$^2$ | | | | | | | 3 | A Rublev | 6 | 6$^5$ | 6 | | | | |
| | M Arnaldi | 7$^7$ | 7$^7$ | | | M Arnaldi | 5 | 3 | | | | | | | | | | |
| | A Popyrin | 6$^5$ | 4 | | 3 | A Rublev | 7 | 6 | | | | | | | | | | |
| 3 | A Rublev | 7$^7$ | 6 | | | | | | | | | | | | 3 | A Rublev | 5 | 6$^5$ |
| 7 | F Tiafoe | 1 | | | | | | | | | | | | | 2 | J Sinner | 7 | 7$^7$ |
| | D Evans | 4$^r$ | | | 7 | F Tiafoe | 5 | 6 | 6 | | | | | | | | | |
| PR | G Monfils | 6 | 6 | | PR | G Monfils | 7 | 1 | 4 | | | | | | | | | |
| | D Altmaier | 4 | 4 | | | | | | | 7 | F Tiafoe | 3 | 4 | | | | | |
| LL | L Sonego | 6 | 5 | 6 | | | | | | 2 | J Sinner | 6 | 6 | | | | | |
| | F Cerúndolo | 4 | 7 | 2 | LL | L Sonego | 2 | 4 | | | | | | | | | | |
| | B Shelton | 6$^2$ | 5 | | 2 | J Sinner | 6 | 6 | | | | | | | | | | |
| 2 | J Sinner | 7$^7$ | 7 | | | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Márton Fucsovics (withdrew)
* Lorenzo Sonego (qualifying competition, lucky loser)
* Emil Ruusuvuori (qualifying competition)
* Fábián Marozsán (qualifying competition, withdrew)
* Juan Pablo Varillas (first round)
* Tomáš Macháč (qualified)
* Alexandre Müller (qualified)
* Albert Ramos Viñolas (qualified)

### Qualifiers

* Filip Misolic
* Alexandre Müller
* Tomáš Macháč
* Albert Ramos Viñolas

### Lucky loser

* Lorenzo Sonego

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| Alt | Damir Džumhur | 6$^8$ | 3 | | | | | |
| Alt | Andrea Vavassori | 7$^{10}$ | 6 | | | | | |
| Alt | Andrea Vavassori | 7$^{10}$ | 6 | Alt | Andrea Vavassori | 6 | 6$^5$ | 2 |
| | | | | WC | Filip Misolic | 4 | 7$^7$ | 6 |
| WC | Filip Misolic | 6 | 6 | WC | Filip Misolic | 4 | 7$^7$ | 6 |
| 5 | Juan Pablo Varillas | 3 | 2 | | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Lorenzo Sonego | 7 | 6 | | | | | |
| Alt | Vitaliy Sachko | 5 | 1 | | | | | |
| Alt | Vitaliy Sachko | 5 | 1 | 2 | Lorenzo Sonego | 6 | 3 | 4 |
| | | | | 7 | Alexandre Müller | 1 | 6 | 6 |
| | Lloyd Harris | 1 | 4 | 7 | Alexandre Müller | 1 | 6 | 6 |
| 7 | Alexandre Müller | 6 | 6 | | | | | |

#### Third qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Emil Ruusuvuori | 6 | 7 | | | | |
| WC | Alexander Erler | 1 | 5 | | | | |
| WC | Alexander Erler | 1 | 5 | 3 | Emil Ruusuvuori | 3 | 3 |
| | | | | 6 | Tomáš Macháč | 6 | 6 |
| | Jurij Rodionov | 3 | 4 | 6 | Tomáš Macháč | 6 | 6 |
| 6 | Tomáš Macháč | 6 | 6 | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Fábián Marozsán | 6 | 7$^7$ | | | |
| | Timofey Skatov | 3 | 6$^2$ | | | |
| | Timofey Skatov | 3 | 6$^2$ | 4 | Fábián Marozsán | |
| | | | | 8 | Albert Ramos Viñolas | w/o |
| WC | Dino Prižmić | 5 | 6$^3$ | 8 | Albert Ramos Viñolas | w/o |
| 8 | Albert Ramos Viñolas | 7 | 7$^7$ | | | |