# 2023 Sofia Open – Singles

Adrian Mannarino defeated Jack Draper in the final, 7–6$^{(8–6)}$, 2–6, 6–3 to win the singles tennis title at the 2023 Sofia Open. It was his third ATP Tour singles title of the season and the fifth of his career.
Marc-Andrea Hüsler was the defending champion, but lost in the first round to Billy Harris after qualifying into the main draw.

## Seeds

The top four seeds received a bye into the second round.
* Lorenzo Musetti (second round)
* Adrian Mannarino (champion)
* Jan-Lennard Struff (semifinals)
* Sebastián Báez (second round, retired)
* Alexei Popyrin (withdrew)
* Max Purcell (second round)
* Sebastian Ofner (quarterfinals)
* Márton Fucsovics (quarterfinals)
* Miomir Kecmanović (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 |
| | Jack Draper | 6 | 6 | | | | | |
| 3 | Jan-Lennard Struff | 3 | 4 | | | | | |
| 3 | Jan-Lennard Struff | 3 | 4 | | Jack Draper | 6$^6$ | 6 | 3 |
| | | | | 2 | Adrian Mannarino | 7$^8$ | 2 | 6 |
| | Pavel Kotov | 2 | 6$^2$ | 2 | Adrian Mannarino | 7$^8$ | 2 | 6 |
| 2 | Adrian Mannarino | 6 | 7$^7$ | | | | | |

### 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 | L Musetti | 5 | 2 | | | | | | | | | | |
| | J Draper | 6 | 6 | | | J Draper | 7 | 6 | | | | | | | | | | |
| | M Marterer | 3 | 2 | | | | | | | | J Draper | 6 | 6 | | | | | |
| WC | C İlkel | 6 | 6 | | | | | | | WC | C İlkel | 2 | 2 | | | | | |
| WC | D Kuzmanov | 0 | 3 | | WC | C İlkel | 6 | 4 | 6 | | | | | | | | | |
| | R Hijikata | 3 | 3 | | 6 | M Purcell | 3 | 6 | 4 | | | | | | | | | |
| 6 | M Purcell | 6 | 6 | | | | | | | | | | | | | J Draper | 6 | 6 |
| | | | | | | | | | | | | | | | 3 | J-L Struff | 3 | 4 |
| | | | | | 3 | J-L Struff | 7$^7$ | 6 | | | | | | | | | | |
| Q | B Harris | 6 | 3 | 7$^7$ | Q | B Harris | 6$^5$ | 4 | | | | | | | | | | |
| Q | M-A Hüsler | 4 | 6 | 6$^5$ | | | | | | 3 | J-L Struff | 7$^7$ | 4 | 6 | | | | |
| | Z Piros | 3 | 1 | | | | | | | | F Marozsán | 6$^3$ | 6 | 4 | | | | |
| | F Marozsán | 6 | 6 | | | F Marozsán | 6 | 3 | 7$^7$ | | | | | | | | | |
| | R Bautista Agut | 7$^{11}$ | 6$^2$ | 7$^7$ | | R Bautista Agut | 3 | 6 | 6$^4$ | | | | | | | | | |
| 9 | M Kecmanović | 6$^9$ | 7$^7$ | 6$^5$ | | | | | | | | | | | | | | |

### 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 |
| 8 | M Fucsovics | 7$^7$ | 6 | | | | | | | | | | | | | | | |
| Q | T Atmane | 6$^4$ | 3 | | 8 | M Fucsovics | 3 | 6 | 6 | | | | | | | | | |
| | J Rodionov | 7$^7$ | 6$^4$ | 6 | | J Rodionov | 6 | 4 | 1 | | | | | | | | | |
| LL | N Moreno de Alboran | 6$^4$ | 7$^7$ | 4 | | | | | | 8 | M Fucsovics | 3 | 6$^3$ | | | | | |
| WC | A Lazarov | 6 | 1 | 2 | | | | | | | P Kotov | 6 | 7$^7$ | | | | | |
| | P Kotov | 3 | 6 | 6 | | P Kotov | 3 | 7$^7$ | 0 | | | | | | | | | |
| | | | | | 4 | S Báez | 6 | 6$^4$ | 0$^r$ | | | | | | | | | |
| | | | | | | | | | | | | | | | | P Kotov | 2 | 6$^2$ |
| 7 | S Ofner | 6 | 3 | 6 | | | | | | | | | | | 2 | A Mannarino | 6 | 7$^7$ |
| Q | V Sachko | 4 | 6 | 2 | 7 | S Ofner | 6$^6$ | 6 | 6 | | | | | | | | | |
| | H Medjedovic | 7$^7$ | 1 | 6$^2$ | | C O'Connell | 7$^8$ | 4 | 2 | | | | | | | | | |
| | C O'Connell | 6$^3$ | 6 | 7$^7$ | | | | | | 7 | S Ofner | 7$^9$ | 4 | 3 | | | | |
| | R Carballés Baena | 5 | 6 | 3 | | | | | | 2 | A Mannarino | 6$^7$ | 6 | 6 | | | | |
| | A Ramos Viñolas | 7 | 4 | 6 | | A Ramos Viñolas | 4 | 4 | | | | | | | | | | |
| | | | | | 2 | A Mannarino | 6 | 6 | | | | | | | | | | |

## Qualifying
### Seeds

* Térence Atmane (qualified)
* Nicolas Moreno de Alboran (qualifying competition, lucky loser)
* Vitaliy Sachko (qualified)
* Marc-Andrea Hüsler (qualified)
* Illya Marchenko (qualifying competition)
* Francesco Passaro (qualifying competition)
* Nerman Fatić (qualifying competition)
* Billy Harris (qualified)

### Qualifiers

* Térence Atmane
* Billy Harris
* Vitaliy Sachko
* Marc-Andrea Hüsler

### Lucky loser

* Nicolas Moreno de Alboran

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Térence Atmane | 7$^7$ | 7$^7$ | | | | | |
| | Evgeny Donskoy | 6$^2$ | 6$^4$ | | | | | |
| | Evgeny Donskoy | 6$^2$ | 6$^4$ | | 1 | Térence Atmane | 7$^7$ | 7 |
| | | | | | 5 | Illya Marchenko | 6$^3$ | 5 |
| | Lorenzo Giustino | 6$^0$ | 7$^7$ | 3 | 5 | Illya Marchenko | 6$^3$ | 5 |
| 5 | Illya Marchenko | 7$^7$ | 6$^5$ | 6 | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Nicolas Moreno de Alboran | 6 | 6 | | | | | |
| WC | Alexander Donski | 3 | 4 | | | | | |
| WC | Alexander Donski | 3 | 4 | | 2 | Nicolas Moreno de Alboran | 2 | 1 |
| | | | | | 8 | Billy Harris | 6 | 6 |
| | Yankı Erel | 6$^3$ | 6 | 6$^3$ | 8 | Billy Harris | 6 | 6 |
| 8 | Billy Harris | 7$^7$ | 4 | 7$^7$ | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Vitaliy Sachko | 2 | 7$^8$ | 6 | | | | | |
| | Altuğ Çelikbilek | 6 | 6$^6$ | 1 | | | | | |
| | Altuğ Çelikbilek | 6 | 6$^6$ | 1 | 3 | Vitaliy Sachko | 6$^2$ | 6 | 7$^9$ |
| | | | | | 7 | Nerman Fatić | 7$^7$ | 3 | 6$^7$ |
| WC | Yanaki Milev | 3 | 1 | | 7 | Nerman Fatić | 7$^7$ | 3 | 6$^7$ |
| 7 | Nerman Fatić | 6 | 6 | | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Marc-Andrea Hüsler | 6 | 7 | | | | | |
| Alt | Alexander Erler | 1 | 5 | | | | | |
| Alt | Alexander Erler | 1 | 5 | | 4 | Marc-Andrea Hüsler | 6 | 7 |
| | | | | | 6 | Francesco Passaro | 4 | 5 |
| | Ergi Kırkın | 7 | 3 | 1 | 6 | Francesco Passaro | 4 | 5 |
| 6 | Francesco Passaro | 5 | 6 | 6 | | | | |