# 2019 Brest Challenger – Singles

Hubert Hurkacz was the defending champion but chose not to defend his title.
Ugo Humbert won the title after defeating Evgeny Donskoy 6–2, 6–3 in the final.

## Seeds

All seeds receive a bye into the second round.
* Ugo Humbert (champion)
* Roberto Carballés Baena (quarterfinals)
* Thomas Fabbiano (second round)
* Corentin Moutet (third round)
* Jaume Munar (third round)
* Lloyd Harris (semifinals)
* Antoine Hoang (quarterfinals)
* Evgeny Donskoy (final)
* Norbert Gombos (semifinals)
* Paolo Lorenzi (second round)
* Yannick Maden (second round)
* Jiří Veselý (third round)
* Yūichi Sugita (second round)
* Guillermo García López (third round)
* Enzo Couacaud (second round)
* Quentin Halys (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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1/SE | Ugo Humbert | 6 | 4 | 7 | | | | | | | | | |
| 7 | Antoine Hoang | 4 | 6 | 5 | | | | | | | | | |
| 7 | Antoine Hoang | 4 | 6 | 5 | 1/SE | Ugo Humbert | 6 | 7$^8$ | | | | | |
| | | | | | 9 | Norbert Gombos | 4 | 6$^6$ | | | | | |
| Q | Illya Marchenko | 4 | 2 | | 9 | Norbert Gombos | 4 | 6$^6$ | | | | | |
| 9 | Norbert Gombos | 6 | 6 | | | | | | | | | | |
| 9 | Norbert Gombos | 6 | 6 | | | | | | | 1/SE | Ugo Humbert | 6 | 6 |
| | | | | | | | | | | 8 | Evgeny Donskoy | 2 | 3 |
| 6 | Lloyd Harris | 6 | 7$^7$ | | | | | | | | | | | 8 | Evgeny Donskoy | 2 | 3 |
| | Corentin Denolly | 3 | 6$^2$ | | | | | | | | | | |
| | Corentin Denolly | 3 | 6$^2$ | | 6 | Lloyd Harris | 6 | 5 | 3 | | | | |
| | | | | | 8 | Evgeny Donskoy | 4 | 7 | 6 | | | | |
| 8 | Evgeny Donskoy | 7$^9$ | 6 | | 8 | Evgeny Donskoy | 4 | 7 | 6 | | | | |
| 2 | Roberto Carballés Baena | 6$^7$ | 4 | | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 1/SE | U Humbert | 6 | 6 | | | | | | | | | | |
| WC | A Reymond | 2 | 1 | | M Janvier | 4 | 1 | | | | | | | | | | |
| | M Janvier | 6 | 6 | | | | | | 1/SE | U Humbert | 7$^7$ | 6 | | | | | |
| WC | R Roumane | 5 | 6$^3$ | | | | | | | E Karlovskiy | 6$^2$ | 4 | | | | | |
| | E Karlovskiy | 7 | 7$^7$ | | E Karlovskiy | 6 | 6 | | | | | | | | | | |
| | | | | 15 | E Couacaud | 2 | 4 | | | | | | | | | | |
| | | | | | | | | | | | | | 1/SE | U Humbert | 6 | 4 | 7 |
| | | | | | | | | | | | | | 7 | A Hoang | 4 | 6 | 5 |
| | | | | 10 | P Lorenzi | 3 | 6$^1$ | | | | | | | | | | |
| | Z Kolář | 7$^7$ | 6 | | Z Kolář | 6 | 7$^7$ | | | | | | | | | | |
| | J Ward | 6$^3$ | 2 | | | | | | | Z Kolář | 2 | 6$^5$ | | | | | |
| | A Müller | 6$^5$ | 6$^8$ | | | | | | 7 | A Hoang | 6 | 7$^7$ | | | | | |
| | B Kavčič | 7$^7$ | 7$^{10}$ | | B Kavčič | 6 | 1 | 2 | | | | | | | | | |
| | | | | 7 | A Hoang | 2 | 6 | 6 | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 3 | T Fabbiano | 4 | 4 | | | | | | | | | |
| Q | I Marchenko | 6 | 6 | | Q | I Marchenko | 6 | 6 | | | | | | | | | |
| | L Klein | 4 | 2 | | | | | | | Q | I Marchenko | 6 | 7$^7$ | | | | |
| | N Serdarušić | 7 | 6 | | | | | | | | N Serdarušić | 4 | 6$^4$ | | | | |
| WC | G Blancaneaux | 5 | 3 | | | N Serdarušić | 6 | 3 | 7$^7$ | | | | | | | | |
| | | | | | 13 | Y Sugita | 1 | 6 | 6$^5$ | | | | | | | | |
| | | | | | | | | | | | | | | Q | I Marchenko | 4 | 2 |
| | | | | | | | | | | | | | | 9 | N Gombos | 6 | 6 |
| | | | | | 9 | N Gombos | 4 | 6 | 6 | | | | | | | | |
| | T Lamasine | 3 | 6 | 3 | | V Durasovic | 6 | 2 | 4 | | | | | | | | |
| | V Durasovic | 6 | 3 | 6 | | | | | | 9 | N Gombos | 7$^7$ | 6 | | | | |
| | E Benchetrit | 6 | 7 | | | | | | | 5 | J Munar | 6$^3$ | 3 | | | | |
| | A Karatsev | 3 | 5 | | | E Benchetrit | 3 | 3 | | | | | | | | | |
| | | | | | 5 | J Munar | 6 | 6 | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 6 | L Harris | 7$^7$ | 7 | | | | | | | | | | |
| | H Gaston | 7$^7$ | 6 | | H Gaston | 6$^3$ | 5 | | | | | | | | | | |
| | C Lestienne | 6$^5$ | 2 | | | | | | 6 | L Harris | 6 | 7$^8$ | | | | | |
| | M Viola | 6 | 6 | | | | | | 12 | J Veselý | 1 | 6$^6$ | | | | | |
| Q | M Hamou | 4 | 3 | | M Viola | 1 | 2 | | | | | | | | | | |
| | | | | 12 | J Veselý | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | 6 | L Harris | 6 | 7$^7$ |
| | | | | | | | | | | | | | | | C Denolly | 3 | 6$^2$ |
| | | | | 16/WC | Q Halys | 6 | 3 | 3 | | | | | | | | | |
| | C Denolly | 6 | 6 | | C Denolly | 3 | 6 | 6 | | | | | | | | | |
| | P Cachin | 1 | 2 | | | | | | | C Denolly | 2 | 7 | 6 | | | | |
| WC | D Added | 3 | 6$^6$ | | | | | | 4 | C Moutet | 6 | 5 | 3 | | | | |
| | M Bourgue | 6 | 7$^8$ | | M Bourgue | 2 | 1 | | | | | | | | | | |
| | | | | 4 | C Moutet | 6 | 6 | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 8 | E Donskoy | 7 | 6 | | | | | | | | | | |
| T Gabashvili | 7$^7$ | 4 | 6 | | T Gabashvili | 5 | 4 | | | | | | | | | | |
| J Rodionov | 6$^0$ | 6 | 4 | | | | | | 8 | E Donskoy | 6 | 3 | 6 | | | | |
| M Trungelliti | 2 | 3 | | | | | | | | H Grenier | 3 | 6 | 3 | | | | |
| H Grenier | 6 | 6 | | | H Grenier | 7$^7$ | 6 | | | | | | | | | | |
| | | | | 11 | Y Maden | 6$^4$ | 4 | | | | | | | | | | |
| | | | | | | | | | | | | | | 8 | E Donskoy | 7$^9$ | 6 |
| | | | | | | | | | | | | | | 2 | R Carballés Baena | 6$^7$ | 4 |
| | | | | 14 | G García López | 6 | 3 | 6 | | | | | | | | | |
| P Kotov | 6 | 6 | | | P Kotov | 4 | 6 | 3 | | | | | | | | | |
| M Guinard | 4 | 4 | | | | | | | 14 | G García López | 5 | 6$^3$ | | | | | |
| C Taberner | 7$^7$ | 2 | 7$^7$ | | | | | | 2 | R Carballés Baena | 7 | 7$^7$ | | | | | |
| B Bonzi | 6$^5$ | 6 | 6$^2$ | | C Taberner | 7$^7$ | 0 | 1 | | | | | | | | | |
| | | | | 2 | R Carballés Baena | 6$^5$ | 6 | 6 | | | | | | | | | |