# 2024 Open de Rennes – Singles

Maxime Cressy was the defending champion but chose not to defend his title.
Jacob Fearnley won the title after defeating Quentin Halys 0–6, 7–6$^{(7–5)}$, 6–3 in the final.

## Seeds

* Adrian Mannarino (quarterfinals)
* Constant Lestienne (semifinals)
* Harold Mayot (semifinals)
* Quentin Halys (final)
* Benjamin Bonzi (second round)
* Titouan Droguet (quarterfinals)
* Lucas Pouille (quarterfinals)
* Jacob Fearnley (champion)

## 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 |
| 8 | Jacob Fearnley | 6 | 6 | | | | | |
| 3 | Harold Mayot | 4 | 2 | | | | | |
| 3 | Harold Mayot | 4 | 2 | 8 | Jacob Fearnley | 0 | 7$^7$ | 6 |
| | | | | 4 | Quentin Halys | 6 | 6$^5$ | 3 |
| 4 | Quentin Halys | 6 | 7$^7$ | 4 | Quentin Halys | 6 | 6$^5$ | 3 |
| 2 | Constant Lestienne | 4 | 6$^4$ | | | | | |

### 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/WC | A Mannarino | 6 | 6 | | | | | | | | | | | | | | |
| | M Bourgue | 1 | 2 | | 1/WC | A Mannarino | 7$^7$ | 3 | 6 | | | | | | | | |
| Q | Max Wiskandt | 4 | 6 | 3 | Q | N Basilashvili | 6$^5$ | 6 | 3 | | | | | | | | |
| Q | N Basilashvili | 6 | 3 | 6 | | | | | | 1/WC | A Mannarino | 3 | 3 | | | | |
| | G Blancaneaux | 4 | 4 | | | | | | | 8 | J Fearnley | 6 | 6 | | | | |
| WC | S Gueymard Wayenburg | 6 | 6 | | WC | S Gueymard Wayenburg | 6 | 2 | 4 | | | | | | | | |
| | B Paire | 1 | 0 | | 8 | J Fearnley | 1 | 6 | 6 | | | | | | | | |
| 8 | J Fearnley | 6 | 6 | | | | | | | | | | | 8 | J Fearnley | 6 | 6 |
| 3 | H Mayot | 6 | 6 | | | | | | | | | | | 3 | H Mayot | 4 | 2 |
| | M Janvier | 3 | 4 | | 3 | H Mayot | 6 | 6 | | | | | | | | | |
| Q | A Bouquier | 2 | 7$^7$ | 6 | Q | A Bouquier | 4 | 3 | | | | | | | | | |
| PR | E Furness | 6 | 6$^5$ | 4 | | | | | | 3 | H Mayot | 6 | 6 | | | | |
| WC | L Lokoli | 2 | 2$^r$ | | | | | | | Alt | M Geerts | 2 | 4 | | | | |
| Alt | M Geerts | 6 | 4 | | Alt | M Geerts | 6 | 6 | | | | | | | | | |
| | H Naw | 3 | 6 | 4 | 5 | B Bonzi | 4 | 4 | | | | | | | | | |
| 5 | B Bonzi | 6 | 4 | 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 | T Droguet | 6 | 6 | | | | | | | | | | | | | | | |
| Q | S Diez | 3 | 4 | | 6 | T Droguet | 3 | 7$^7$ | 7 | | | | | | | | | |
| Q | K de Schepper | 6$^1$ | 3 | | | H Grenier | 6 | 6$^3$ | 5 | | | | | | | | | |
| | H Grenier | 7$^7$ | 6 | | | | | | | 6 | T Droguet | 6$^{11}$ | 1 | | | | | |
| Q | E Coulibaly | 0 | 1 | | | | | | | 4 | Q Halys | 7$^{13}$ | 6 | | | | | |
| | M Martineau | 6 | 6 | | | M Martineau | 6$^2$ | 6$^2$ | | | | | | | | | | |
| | M Damm | 7$^7$ | 6$^4$ | 2 | 4 | Q Halys | 7$^7$ | 7$^7$ | | | | | | | | | | |
| 4 | Q Halys | 6$^5$ | 7$^7$ | 6 | | | | | | | | | | | 4 | Q Halys | 6 | 7$^7$ |
| 7 | L Pouille | 6 | 6 | | | | | | | | | | | | 2 | C Lestienne | 4 | 6$^4$ |
| | C Hemery | 3 | 4 | | 7 | L Pouille | 6 | 6 | | | | | | | | | | |
| | A Escoffier | 7$^7$ | 4 | 7$^7$ | | A Escoffier | 3 | 3 | | | | | | | | | | |
| | L Broady | 6$^4$ | 6 | 6$^5$ | | | | | | 7 | L Pouille | 6 | 3 | 6$^4$ | | | | |
| | D Masur | 6 | 2 | 5 | | | | | | 2 | C Lestienne | 3 | 6 | 7$^7$ | | | | |
| | Jules Marie | 4 | 6 | 7 | | J Marie | 5 | 1 | | | | | | | | | | |
| | R Bertrand | 6 | 3 | 3 | 2 | C Lestienne | 7 | 6 | | | | | | | | | | |
| 2 | C Lestienne | 2 | 6 | 6 | | | | | | | | | | | | | | |