# 2023 Challenger La Manche – Singles

Benjamin Bonzi was the defending champion but chose not to defend his title.
Giulio Zeppieri won the title after defeating Titouan Droguet 7–5, 7–6$^{(7–4)}$ in the final.

## Seeds

* Vasek Pospisil (first round)
* John Millman (first round)
* Luca Van Assche (quarterfinals)
* Hugo Grenier (second round)
* Geoffrey Blancaneaux (second round)
* Giulio Zeppieri (champion)
* Laurent Lokoli (first round)
* Alexander Ritschard (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 | Semifinals | Final | Final | Final | Final |
| 6 | Giulio Zeppieri | 6 | 3 | 6 | | | | |
| | Jan Choinski | 4 | 6 | 3 | | | | |
| | Jan Choinski | 4 | 6 | 3 | 6 | Giulio Zeppieri | 7 | 7$^7$ |
| | | | | | Q | Titouan Droguet | 5 | 6$^4$ |
| | Antoine Escoffier | 3 | 4 | | Q | Titouan Droguet | 5 | 6$^4$ |
| Q | Titouan Droguet | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | V Pospisil | 4 | 6$^5$ | | | | | | | | | | | | | | | | |
| Alt | M Moraing | 6 | 7$^7$ | | Alt | M Moraing | 6$^6$ | 6 | 6 | | | | | | | | | | |
| | A Bellier | 7$^8$ | 7 | | | A Bellier | 7$^8$ | 4 | 2 | | | | | | | | | | |
| | A Çelikbilek | 6$^6$ | 5 | | | | | | | Alt | M Moraing | 5 | 4 | | | | | | |
| | I Gakhov | 4 | 6$^6$ | | | | | | | 6 | G Zeppieri | 7 | 6 | | | | | | |
| Alt | M Geerts | 6 | 7$^8$ | | Alt | M Geerts | 6 | 5 | 6$^5$ | | | | | | | | | | |
| | M Poljičak | 3 | 6$^5$ | | 6 | G Zeppieri | 4 | 7 | 7$^7$ | | | | | | | | | | |
| 6 | G Zeppieri | 6 | 7$^7$ | | | | | | | | | | | | 6 | G Zeppieri | 6 | 3 | 6 |
| 4 | H Grenier | 7 | 6 | | | | | | | | | | | | | J Choinski | 4 | 6 | 3 |
| Q | K Friberg | 5 | 4 | | 4 | H Grenier | 2 | 1 | | | | | | | | | | | |
| | J Choinski | 6 | 6 | | | J Choinski | 6 | 6 | | | | | | | | | | | |
| Q | D Yevseyev | 3 | 2 | | | | | | | | J Choinski | 4 | 6 | 6 | | | | | |
| Q | J Tatlot | 6$^5$ | 4 | | | | | | | | G Debru | 6 | 4 | 4 | | | | | |
| | G Debru | 7$^7$ | 6 | | | G Debru | 7$^7$ | 2 | 7$^7$ | | | | | | | | | | |
| WC | K de Schepper | 6$^3$ | 6 | 6 | WC | K de Schepper | 6$^2$ | 6 | 6$^3$ | | | | | | | | | | |
| 8 | A Ritschard | 7$^7$ | 1 | 4 | | | | | | | | | | | | | | | |

### 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 |
| 7 | L Lokoli | 2 | 3 | | | | | | | | | | | | | | | |
| | A Escoffier | 6 | 6 | | | A Escoffier | 6$^5$ | 6 | 7 | | | | | | | | | |
| | E Furness | 6 | 6 | | | E Furness | 7$^7$ | 1 | 5 | | | | | | | | | |
| | P Gojowczyk | 2 | 0 | | | | | | | | A Escoffier | 6 | 5 | 7$^7$ | | | | |
| | K Żuk | 5 | 6 | 6 | | | | | | 3 | L Van Assche | 4 | 7 | 6$^4$ | | | | |
| Q | G Onclin | 7 | 3 | 4 | | K Żuk | 1 | 2 | | | | | | | | | | |
| WC | D Added | 3 | 0 | | 3 | L Van Assche | 6 | 6 | | | | | | | | | | |
| 3 | L Van Assche | 6 | 6 | | | | | | | | | | | | | A Escoffier | 3 | 4 |
| 5 | G Blancaneaux | 7$^7$ | 6 | | | | | | | | | | | | Q | T Droguet | 6 | 6 |
| Alt | R Collignon | 6$^1$ | 1 | | 5 | G Blancaneaux | 2 | 6$^2$ | | | | | | | | | | |
| WC | C Chidekh | 3 | 1 | | Q | A Vatutin | 6 | 7$^7$ | | | | | | | | | | |
| Q | A Vatutin | 6 | 6 | | | | | | | Q | A Vatutin | 6 | 4 | 4 | | | | |
| Alt | N Sánchez Izquierdo | 2 | 6$^4$ | | | | | | | Q | T Droguet | 4 | 6 | 6 | | | | |
| | J De Loore | 6 | 7$^7$ | | | J De Loore | 5 | 3 | | | | | | | | | | |
| Q | T Droguet | 6 | 6 | | Q | T Droguet | 7 | 6 | | | | | | | | | | |
| 2 | J Millman | 4 | 3 | | | | | | | | | | | | | | | |