# 2023 European Open – Singles

Alexander Bublik defeated Arthur Fils in the final, 6–4, 6–4 to win the singles title at the 2023 European Open. It was his third ATP Tour singles title.
Félix Auger-Aliassime was the reigning champion, but chose to compete in Tokyo instead.

## Seeds

The top four seeds received a bye into the second round.
* Stefanos Tsitsipas (semifinals)
* Jan-Lennard Struff (second round)
* Alexander Bublik (champion)
* Arthur Fils (final)
* Yannick Hanfmann (quarterfinals)
* Roberto Carballés Baena (first round)
* Richard Gasquet (first round)
* Juan Pablo Varillas (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 |
| 1 | Stefanos Tsitsipas | 6$^5$ | 6$^4$ | | | | |
| 4 | Arthur Fils | 7$^7$ | 7$^7$ | | | | |
| 4 | Arthur Fils | 7$^7$ | 7$^7$ | 4 | Arthur Fils | 4 | 4 |
| | | | | 3 | Alexander Bublik | 6 | 6 |
| 3 | Alexander Bublik | 6 | 6 | 3 | Alexander Bublik | 6 | 6 |
| Q | Maximilian Marterer | 4 | 4 | | | | |

### 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 | S Tsitsipas | 7 | 6 | | | | | | | | | |
| | D Stricker | 7$^7$ | 3 | 3 | | B van de Zandschulp | 5 | 3 | | | | | | | | | |
| | B van de Zandschulp | 6$^4$ | 6 | 6 | | | | | | 1 | S Tsitsipas | 6 | 6 | | | | |
| WC | L Nardi | 6 | 6$^7$ | 2 | | | | | | 5 | Y Hanfmann | 3 | 3 | | | | |
| | D Thiem | 3 | 7$^9$ | 6 | | D Thiem | 4 | 7 | 4 | | | | | | | | |
| Q | A Blockx | 4 | 6$^3$ | | 5 | Y Hanfmann | 6 | 5 | 6 | | | | | | | | |
| 5 | Y Hanfmann | 6 | 7$^7$ | | | | | | | | | | | 1 | S Tsitsipas | 6$^5$ | 6$^4$ |
| | | | | | | | | | | | | | | 4 | A Fils | 7$^7$ | 7$^7$ |
| | | | | | 4 | A Fils | 7$^7$ | 7$^7$ | | | | | | | | | |
| | J Munar | 3 | 4 | | WC | M Lajal | 6$^4$ | 6$^2$ | | | | | | | | | |
| WC | M Lajal | 6 | 6 | | | | | | | 4 | A Fils | 6 | 6 | | | | |
| Q | B Bonzi | 7$^7$ | 6$^5$ | 3 | | | | | | 8 | JP Varillas | 0 | 3 | | | | |
| | A Shevchenko | 6$^5$ | 7$^7$ | 6 | | A Shevchenko | 6 | 3 | 2 | | | | | | | | |
| | F Marozsán | 6$^7$ | 4 | | 8 | JP Varillas | 3 | 6 | 6 | | | | | | | | |
| 8 | JP Varillas | 7$^9$ | 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 |
| 6 | R Carballés Baena | 6 | 3 | 6$^4$ | | | | | | | | | | | | | | |
| Q | G Mpetshi Perricard | 0 | 6 | 7$^7$ | Q | G Mpetshi Perricard | 7 | 6 | | | | | | | | | | |
| WC | D Goffin | 6 | 6 | | WC | D Goffin | 5 | 3 | | | | | | | | | | |
| | Q Halys | 4 | 1 | | | | | | | Q | G Mpetshi Perricard | 4 | 6 | 2 | | | | |
| | G Barrère | 6 | 7$^7$ | | | | | | | 3 | A Bublik | 6 | 4 | 6 | | | | |
| | DE Galán | 1 | 6$^5$ | | | G Barrère | 4 | 2 | | | | | | | | | | |
| | | | | | 3 | A Bublik | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 3 | A Bublik | 6 | 6 |
| 7 | R Gasquet | 3 | 4 | | | | | | | | | | | | Q | M Marterer | 4 | 4 |
| Q | M Marterer | 6 | 6 | | Q | M Marterer | 6 | 7$^7$ | | | | | | | | | | |
| | N Borges | 7$^8$ | 6 | | | N Borges | 3 | 6$^3$ | | | | | | | | | | |
| | D Koepfer | 6$^6$ | 4 | | | | | | | Q | M Marterer | 6 | 6 | | | | | |
| | A Rinderknech | 6$^7$ | 4 | | | | | | | | H Gaston | 3 | 2 | | | | | |
| | H Gaston | 7$^9$ | 6 | | | H Gaston | 5 | 7$^7$ | 7$^{13}$ | | | | | | | | | |
| | | | | | 2 | J-L Struff | 7 | 6$^5$ | 6$^{11}$ | | | | | | | | | |

## Qualifying
### Seeds

* Benjamin Bonzi (qualified)
* Hamad Medjedovic (first round)
* Maxime Cressy (first round)
* Maximilian Marterer (qualified)
* Giulio Zeppieri (qualifying competition)
* Pablo Llamas Ruiz (first round)
* Antoine Escoffier (first round)
* Titouan Droguet (qualifying competition)

### Qualifiers

* Benjamin Bonzi
* Alexander Blockx
* Giovanni Mpetshi Perricard
* Maximilian Marterer

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Benjamin Bonzi | 6 | 6 | | | | |
| | Oscar Otte | 1 | 2 | | | | |
| | Oscar Otte | 1 | 2 | 1 | Benjamin Bonzi | 7 | 7 |
| | | | | 5 | Giulio Zeppieri | 5 | 5 |
| Alt | Hugo Grenier | 3 | 4 | 5 | Giulio Zeppieri | 5 | 5 |
| 5 | Giulio Zeppieri | 6 | 6 | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Hamad Medjedovic | 6$^3$ | 2 | | | | | |
| WC | Alexander Blockx | 7$^7$ | 6 | | | | | |
| WC | Alexander Blockx | 7$^7$ | 6 | | WC | Alexander Blockx | 6 | 7 |
| | | | | | WC | Gilles Arnaud Bailly | 4 | 5 |
| WC | Gilles Arnaud Bailly | 7$^7$ | 5 | 7$^7$ | WC | Gilles Arnaud Bailly | 4 | 5 |
| 6 | Pablo Llamas Ruiz | 6$^5$ | 7 | 6$^5$ | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Maxime Cressy | 2 | 6 | 6$^1$ | | | | |
| | Gauthier Onclin | 6 | 1 | 7$^7$ | | | | |
| | Gauthier Onclin | 6 | 1 | 7$^7$ | | Gauthier Onclin | 4 | 2 |
| | | | | | Alt | Giovanni Mpetshi Perricard | 6 | 6 |
| Alt | Giovanni Mpetshi Perricard | 6 | 7$^7$ | | Alt | Giovanni Mpetshi Perricard | 6 | 6 |
| 7 | Antoine Escoffier | 1 | 6$^4$ | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Maximilian Marterer | 6 | 6 | | | | | |
| | Gijs Brouwer | 1 | 4 | | | | | |
| | Gijs Brouwer | 1 | 4 | | 4 | Maximilian Marterer | 6 | 6 |
| | | | | | 8 | Titouan Droguet | 4 | 4 |
| | Zizou Bergs | 5 | 7$^9$ | 2 | 8 | Titouan Droguet | 4 | 4 |
| 8 | Titouan Droguet | 7 | 6$^7$ | 6 | | | | |