# 2023 Libéma Open – Men's singles

Tallon Griekspoor defeated Jordan Thompson in the final, 6–7$^{(4–7)}$, 7–6$^{(7–3)}$, 6–3 to win the men's singles tennis title at the 2023 Libéma Open. It was his second ATP Tour title.
Tim van Rijthoven was the reigning champion, but did not compete due to an elbow injury.
This tournament marked the return of 2016 Wimbledon finalist and former world No. 3 Milos Raonic, after being away from the tour since 2021. He lost in the second round to Thompson.

## Seeds

The top four seeds received a bye into the second round.
* Daniil Medvedev (second round)
* Jannik Sinner (quarterfinals)
* Borna Ćorić (second round)
* Alex de Minaur (quarterfinals)
* Miomir Kecmanović (first round)
* Tallon Griekspoor (champion)
* Ugo Humbert (second round)
* Maxime Cressy (first 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 | Final | Final | Final | Final | Final |
| | Jordan Thompson | 7$^7$ | 6 | | | | | |
| LL | Rinky Hijikata | 6$^5$ | 3 | | | | | |
| LL | Rinky Hijikata | 6$^5$ | 3 | | Jordan Thompson | 7$^7$ | 6$^3$ | 3 |
| | | | | 6 | Tallon Griekspoor | 6$^4$ | 7$^7$ | 6 |
| 6 | Tallon Griekspoor | 6 | 7 | 6 | Tallon Griekspoor | 6$^4$ | 7$^7$ | 6 |
| | Emil Ruusuvuori | 4 | 5 | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | D Medvedev | 6 | 4 | 2 | | | | | | | | | |
| | A Mannarino | 7$^7$ | 6 | | | A Mannarino | 4 | 6 | 6 | | | | | | | | | |
| Q | A Fils | 6$^1$ | 4 | | | | | | | | A Mannarino | 7 | 6$^2$ | 2 | | | | |
| | J Thompson | 6 | 7$^7$ | | | | | | | | J Thompson | 5 | 7$^7$ | 6 | | | | |
| Q | G Mpetshi Perricard | 4 | 6$^3$ | | | J Thompson | 7$^7$ | 6 | | | | | | | | | | |
| PR | M Raonic | 6 | 6 | | PR | M Raonic | 6$^4$ | 1 | | | | | | | | | | |
| 5 | M Kecmanović | 3 | 4 | | | | | | | | | | | | | J Thompson | 7$^7$ | 6 |
| | | | | | | | | | | | | | | | LL | R Hijikata | 6$^5$ | 3 |
| | | | | | 3 | B Ćorić | 4 | 4 | | | | | | | | | | |
| | M McDonald | 6 | 6 | | | M McDonald | 6 | 6 | | | | | | | | | | |
| | I Ivashka | 4 | 3 | | | | | | | | M McDonald | 7 | 3 | 1 | | | | |
| LL | R Hijikata | 6$^5$ | 6 | 6 | | | | | | LL | R Hijikata | 5 | 6 | 6 | | | | |
| WC | G Brouwer | 7$^7$ | 3 | 2 | LL | R Hijikata | 2 | 7 | 6 | | | | | | | | | |
| | M-A Hüsler | 6 | 7$^7$ | | | M-A Hüsler | 6 | 5 | 3 | | | | | | | | | |
| 8 | M Cressy | 2 | 6$^2$ | | | | | | | | | | | | | | | |

### 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 | T Griekspoor | 6 | 3 | 6 | | | | | | | | | | | | | | |
| | M Ymer | 2 | 6 | 3 | 6 | T Griekspoor | 6 | 6 | | | | | | | | | | |
| WC | A Rinderknech | 3 | 6$^6$ | | | A Popyrin | 3 | 2 | | | | | | | | | | |
| | A Popyrin | 6 | 7$^8$ | | | | | | | 6 | T Griekspoor | 4 | 6 | 6 | | | | |
| | L Djere | 6 | 6 | | | | | | | 4 | A de Minaur | 6 | 3 | 4 | | | | |
| Q | R Berankis | 4 | 2 | | | L Djere | 1 | 7$^7$ | 3 | | | | | | | | | |
| | | | | | 4 | A de Minaur | 6 | 6$^5$ | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | | 6 | T Griekspoor | 6 | 7 |
| 7 | U Humbert | 6 | 6 | | | | | | | | | | | | | E Ruusuvuori | 4 | 5 |
| | J Kubler | 4 | 2 | | 7 | U Humbert | 2 | 7$^8$ | 4 | | | | | | | | | |
| | E Ruusuvuori | 6 | 3 | 6 | | E Ruusuvuori | 6 | 6$^6$ | 6 | | | | | | | | | |
| | B Nakashima | 3 | 6 | 3 | | | | | | | E Ruusuvuori | 6 | 6 | | | | | |
| | A Bublik | 7 | 7 | | | | | | | 2/WC | J Sinner | 3 | 4 | | | | | |
| Q | D Goffin | 5 | 5 | | | A Bublik | 4 | 2 | | | | | | | | | | |
| | | | | | 2/WC | J Sinner | 6 | 6 | | | | | | | | | | |

## Qualifying
### Seeds

* Arthur Fils (qualified)
* David Goffin (qualified)
* Pavel Kotov (first round)
* Rinky Hijikata (qualifying competition, lucky loser)
* Andrea Vavassori (first round)
* Jelle Sels (first round)
* Jesper de Jong (qualifying competition)
* Ričardas Berankis (qualified)

### Qualifiers

* Arthur Fils
* David Goffin
* Giovanni Mpetshi Perricard
* Ričardas Berankis

### Lucky loser

* Rinky Hijikata

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Arthur Fils | 6 | 6 | | | | |
| | Lloyd Harris | 4 | 4 | | | | |
| | Lloyd Harris | 4 | 4 | 1 | Arthur Fils | 6 | 6 |
| | | | | PR | Pierre-Hugues Herbert | 3 | 3 |
| PR | Pierre-Hugues Herbert | 6 | 6 | PR | Pierre-Hugues Herbert | 3 | 3 |
| 6 | Jelle Sels | 3 | 2 | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | David Goffin | 6 | 6 | | | | | |
| WC | Alec Deckers | 4 | 1 | | | | | |
| WC | Alec Deckers | 4 | 1 | 2 | David Goffin | 2 | 6 | 7$^8$ |
| | | | | 7 | Jesper de Jong | 6 | 2 | 6$^6$ |
| Alt | Thijmen Loof | 3 | 1 | 7 | Jesper de Jong | 6 | 2 | 6$^6$ |
| 7 | Jesper de Jong | 6 | 6 | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Pavel Kotov | 2 | 4 | | | | | |
| | Edan Leshem | 6 | 6 | | | | | |
| | Edan Leshem | 6 | 6 | | Edan Leshem | 7$^7$ | 4 | 4 |
| | | | | | Giovanni Mpetshi Perricard | 6$^5$ | 6 | 6 |
| | Giovanni Mpetshi Perricard | 6 | 4 | 6 | Giovanni Mpetshi Perricard | 6$^5$ | 6 | 6 |
| 5 | Andrea Vavassori | 4 | 6 | 3 | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Rinky Hijikata | 6 | 7 | | | | |
| | Robin Haase | 3 | 5 | | | | |
| | Robin Haase | 3 | 5 | 4 | Rinky Hijikata | 4 | 4 |
| | | | | 8 | Ričardas Berankis | 6 | 6 |
| WC | Noah Gabriel | 1 | 1 | 8 | Ričardas Berankis | 6 | 6 |
| 8 | Ričardas Berankis | 6 | 6 | | | | |