# 2023 Srpska Open – Singles

Dušan Lajović defeated Andrey Rublev in the final, 6–3, 4–6, 6–4 to win the inaugural singles tennis title at the 2023 Srpska Open.

## Seeds

The top four seeds received a bye into the second round.
* Novak Djokovic (quarterfinals)
* Andrey Rublev (final)
* Borna Ćorić (second round)
* Miomir Kecmanović (semifinals)
* Tallon Griekspoor (first round)
* Jiří Lehečka (quarterfinals)
* Richard Gasquet (second round)
* Grégoire Barrère (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 | Final |
| | Dušan Lajović | 4 | 7$^7$ | 6 | | | | | |
| 4 | Miomir Kecmanović | 6 | 6$^5$ | 4 | | | | | |
| 4 | Miomir Kecmanović | 6 | 6$^5$ | 4 | | Dušan Lajović | 6 | 4 | 6 |
| | | | | | 2 | Andrey Rublev | 3 | 6 | 4 |
| | Alex Molčan | 2 | 4 | | 2 | Andrey Rublev | 3 | 6 | 4 |
| 2 | Andrey Rublev | 6 | 6 | | | | | | |

### 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 | Semifinals |
| | | | | | 1 | N Djokovic | 6$^4$ | 6 | 6 | | | | | | | | | |
| | L Van Assche | 1 | 7$^7$ | 6 | | L Van Assche | 7$^7$ | 3 | 2 | | | | | | | | | |
| | S Wawrinka | 6 | 6$^4$ | 4 | | | | | | 1 | N Djokovic | 4 | 6$^6$ | | | | | |
| | D Lajović | 6 | 4 | 6 | | | | | | | D Lajović | 6 | 7$^8$ | | | | | |
| | F Krajinović | 2 | 6 | 4 | | D Lajović | 6 | 6 | | | | | | | | | | |
| WC | H Međedović | 6$^6$ | 5 | | 8 | G Barrère | 3 | 0 | | | | | | | | | | |
| 8 | G Barrère | 7$^8$ | 7 | | | | | | | | | | | | D Lajović | 4 | 7$^7$ | 6 |
| | | | | | | | | | | | | | | 4 | M Kecmanović | 6 | 6$^5$ | 4 |
| | | | | | 4 | M Kecmanović | 6 | 7$^7$ | | | | | | | | | | |
| Q | E Ymer | 1 | 5 | | Q | A Shelbayh | 4 | 6$^4$ | | | | | | | | | | |
| Q | A Shelbayh | 6 | 7 | | | | | | | 4 | M Kecmanović | 7 | 6 | | | | | |
| Q | R Albot | 6 | 0 | | | | | | | 6 | J Lehečka | 5 | 0 | | | | | |
| | F Coria | 4 | 0$^r$ | | Q | R Albot | 0 | 2 | | | | | | | | | | |
| WC | G Monfils | 4 | 3 | | 6 | J Lehečka | 6 | 6 | | | | | | | | | | |
| 6 | J Lehečka | 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 | T Griekspoor | 6$^4$ | 6$^4$ | | | | | | | | | | | | | | | |
| | A Popyrin | 7$^7$ | 7$^7$ | | | A Popyrin | 6$^4$ | 6 | 5 | | | | | | | | | |
| | A Molčan | 3 | 7 | 6 | | A Molčan | 7$^7$ | 4 | 7 | | | | | | | | | |
| | T Daniel | 6 | 5 | 1 | | | | | | | A Molčan | 6 | 4 | 7 | | | | |
| | R Safiullin | 4 | 2 | | | | | | | | L Đere | 2 | 6 | 5 | | | | |
| | L Đere | 6 | 6 | | | L Đere | 6 | 6$^1$ | 6 | | | | | | | | | |
| | | | | | 3 | B Ćorić | 4 | 7$^7$ | 4 | | | | | | | | | |
| | | | | | | | | | | | | | | | | A Molčan | 2 | 4 |
| 7 | R Gasquet | 6 | 6 | | | | | | | | | | | | 2 | A Rublev | 6 | 6 |
| Q | D Prižmić | 3 | 1 | | 7 | R Gasquet | 4 | 6 | 6$^3$ | | | | | | | | | |
| WC | D Džumhur | 6 | 6 | | WC | D Džumhur | 6 | 1 | 7$^7$ | | | | | | | | | |
| LL | L Broady | 3 | 0 | | | | | | | WC | D Džumhur | 5 | 3 | | | | | |
| | JP Varillas | 7 | 6 | | | | | | | 2 | A Rublev | 7 | 6 | | | | | |
| | H Gaston | 5 | 3 | | | JP Varillas | 2 | 2 | | | | | | | | | | |
| | | | | | 2 | A Rublev | 6 | 6 | | | | | | | | | | |

## Qualifying
### Seeds

* Radu Albot (qualified)
* Arthur Fils (first round)
* Liam Broady (qualifying competition, lucky loser)
* Fábián Marozsán (first round)
* Lukáš Klein (qualifying competition)
* Elias Ymer (qualified)
* Mattia Bellucci (first round)
* Luca Nardi (first round)

### Qualifiers

* Radu Albot
* Elias Ymer
* Dino Prižmić
* Abdullah Shelbayh

### Lucky loser

* Liam Broady

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Radu Albot | 6 | 6 | | | | |
| WC | Aldin Šetkić | 2 | 3 | | | | |
| WC | Aldin Šetkić | 2 | 3 | 1 | Radu Albot | 6 | 6 |
| | | | | | Dimitar Kuzmanov | 3 | 3 |
| | Dimitar Kuzmanov | 6 | 6 | | Dimitar Kuzmanov | 3 | 3 |
| 8 | Luca Nardi | 4 | 4 | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Arthur Fils | 7$^7$ | 3 | 4 | | | | |
| | Francesco Maestrelli | 6$^3$ | 6 | 6 | | | | |
| | Francesco Maestrelli | 6$^3$ | 6 | 6 | | Francesco Maestrelli | 5 | 4 |
| | | | | | 6 | Elias Ymer | 7 | 6 |
| | Nerman Fatić | 6 | 4 | 2 | 6 | Elias Ymer | 7 | 6 |
| 6 | Elias Ymer | 2 | 6 | 6 | | | | |

#### Third qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Liam Broady | 6 | 6 | | | | |
| | Valentin Vacherot | 3 | 1 | | | | |
| | Valentin Vacherot | 3 | 1 | 3 | Liam Broady | 5 | 3 |
| | | | | WC | Dino Prižmić | 7 | 6 |
| WC | Dino Prižmić | 6 | 6 | WC | Dino Prižmić | 7 | 6 |
| 7 | Mattia Bellucci | 3 | 0 | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Fábián Marozsán | 5 | 6 | 3 | | | | |
| Alt | Abdullah Shelbayh | 7 | 1 | 6 | | | | |
| Alt | Abdullah Shelbayh | 7 | 1 | 6 | Alt | Abdullah Shelbayh | 6 | 6 |
| | | | | | 5 | Lukáš Klein | 4 | 2 |
| | Arthur Cazaux | 4 | 4 | | 5 | Lukáš Klein | 4 | 2 |
| 5 | Lukáš Klein | 6 | 6 | | | | | |