# 2024 Brest Challenger – Singles

Pedro Martínez was the defending champion but chose not to defend his title.
Otto Virtanen won the title after defeating Benjamin Bonzi 6–4, 4–6, 7–6$^{(8–6)}$ in the final.

## Seeds

* Hugo Gaston (withdrew)
* Damir Džumhur (second round)
* Harold Mayot (first round)
* Mattia Bellucci (withdrew)
* Billy Harris (second round)
* Mikhail Kukushkin (quarterfinals)
* Laslo Djere (first round)
* Otto Virtanen (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 | Semifinals | Final | Final | Final | Final | Final |
| | Benjamin Bonzi | 6$^5$ | 7$^7$ | 7$^7$ | | | | | |
| Alt | Alibek Kachmazov | 7$^7$ | 6$^3$ | 6$^4$ | | | | | |
| Alt | Alibek Kachmazov | 7$^7$ | 6$^3$ | 6$^4$ | | Benjamin Bonzi | 4 | 6 | 6$^6$ |
| | | | | | 8 | Otto Virtanen | 6 | 4 | 7$^8$ |
| LL | Benjamin Hassan | 3 | 5 | | 8 | Otto Virtanen | 6 | 4 | 7$^8$ |
| 8 | Otto Virtanen | 6 | 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 | Semifinals |
| Q | C Hemery | 5 | 3 | | | | | | | | | | | | | | | | |
| | B Bonzi | 7 | 6 | | | B Bonzi | 5 | 7$^7$ | 6 | | | | | | | | | | |
| Q | MH Rehberg | 7 | 3 | 3 | | P-H Herbert | 7 | 6$^4$ | 3 | | | | | | | | | | |
| | P-H Herbert | 5 | 6 | 6 | | | | | | | B Bonzi | 6 | 6$^8$ | 6 | | | | | |
| | J Fonseca | 6 | 7 | | | | | | | | J Fonseca | 4 | 7$^{10}$ | 4 | | | | | |
| | K Majchrzak | 4 | 5 | | | J Fonseca | 6 | 6 | | | | | | | | | | | |
| Q | Alexis Gautier | 2 | 3 | | 5 | B Harris | 4 | 2 | | | | | | | | | | | |
| 5 | B Harris | 6 | 6 | | | | | | | | | | | | | B Bonzi | 6$^5$ | 7$^7$ | 7$^7$ |
| 3 | H Mayot | 6 | 3 | 6$^3$ | | | | | | | | | | | Alt | A Kachmazov | 7$^7$ | 6$^3$ | 6$^4$ |
| Alt | A Kachmazov | 2 | 6 | 7$^7$ | Alt | A Kachmazov | 3 | 6 | 6 | | | | | | | | | | |
| Q | Z Piros | 6 | 7$^{11}$ | | Q | Z Piros | 6 | 4 | 1 | | | | | | | | | | |
| | T Droguet | 4 | 6$^9$ | | | | | | | Alt | A Kachmazov | 6 | 6 | | | | | | |
| Alt | C Taberner | 6$^4$ | 2 | | | | | | | 6 | M Kukushkin | 3 | 2 | | | | | | |
| | G Barrère | 7$^7$ | 6 | | | G Barrère | 1 | 3 | | | | | | | | | | | |
| | E Butvilas | 4 | 6 | 6$^3$ | 6 | M Kukushkin | 6 | 6 | | | | | | | | | | | |
| 6 | M Kukushkin | 6 | 4 | 7$^7$ | | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | L Djere | 6$^5$ | 4 | | | | | | | | | | | | | | |
| | M Landaluce | 7$^7$ | 6 | | | M Landaluce | 2 | 7$^7$ | 2 | | | | | | | | |
| LL | A Andreev | 5 | 6 | 4 | LL | B Hassan | 6 | 6$^2$ | 6 | | | | | | | | |
| LL | B Hassan | 7 | 4 | 6 | | | | | | LL | B Hassan | 6 | 6 | | | | |
| | H Grenier | 6 | 6 | | | | | | | Q | J Paul | 4 | 3 | | | | |
| | R Collignon | 4 | 4 | | | H Grenier | 4 | 2 | | | | | | | | | |
| WC | M Guinard | 3 | 4 | | Q | J Paul | 6 | 6 | | | | | | | | | |
| Q | J Paul | 6 | 6 | | | | | | | | | | | LL | B Hassan | 3 | 5 |
| 8 | O Virtanen | 3 | 7 | 6 | | | | | | | | | | 8 | O Virtanen | 6 | 7 |
| WC | A Géa | 6 | 5 | 3 | 8 | O Virtanen | 6 | 6 | | | | | | | | | |
| Q | A Vatutin | 0 | 6 | 5 | WC | M Martineau | 3 | 2 | | | | | | | | | |
| WC | M Martineau | 6 | 4 | 7 | | | | | | 8 | O Virtanen | 7$^7$ | 6 | | | | |
| Alt | Em Nava | 3 | 5 | | | | | | | | L Van Assche | 6$^1$ | 4 | | | | |
| | L Van Assche | 6 | 7 | | | L Van Assche | 7 | 7 | | | | | | | | | |
| LL | A Shelbayh | 1 | 1 | | 2 | D Džumhur | 5 | 5 | | | | | | | | | |
| 2 | D Džumhur | 6 | 6 | | | | | | | | | | | | | | |