# 2020 Open Quimper Bretagne – Singles

Grégoire Barrère was the defending champion but chose not to defend his title.
Cem İlkel won the title after defeating Maxime Janvier 7–6$^{(8–6)}$, 7–5 in the final.

## Seeds

All seeds receive a bye into the second round.
* Guillermo García López (third round)
* Danilo Petrović (second round, retired)
* Lukáš Lacko (semifinals)
* Enzo Couacaud (third round)
* Maxime Janvier (final)
* Alexey Vatutin (third round)
* Bernabé Zapata Miralles (third round)
* Hiroki Moriya (second round)
* Matthias Bachinger (quarterfinals)
* Tristan Lamasine (second round)
* Quentin Halys (third round)
* Mats Moraing (second round)
* Constant Lestienne (third round)
* Zdeněk Kolář (quarterfinals)
* Roberto Ortega Olmedo (third round)
* Mathias Bourgue (semifinals)

## 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 |
| 14 | Zdeněk Kolář | 4 | 6 | 3 | | | | | | | | | |
| 5 | Maxime Janvier | 6 | 1 | 6 | | | | | | | | | |
| 5 | Maxime Janvier | 6 | 1 | 6 | 5 | Maxime Janvier | 6 | 5 | 6 | | | | |
| | | | | | 16 | Mathias Bourgue | 4 | 7 | 4 | | | | |
| 16 | Mathias Bourgue | 6 | 6 | | 16 | Mathias Bourgue | 4 | 7 | 4 | | | | |
| 9 | Matthias Bachinger | 4 | 4 | | | | | | | | | | |
| 9 | Matthias Bachinger | 4 | 4 | | | | | | | 5 | Maxime Janvier | 6$^6$ | 5 |
| | | | | | | | | | | | Cem İlkel | 7$^8$ | 7 |
| | Mischa Zverev | 7$^7$ | 2 | 4 | | | | | | | | | | Cem İlkel | 7$^8$ | 7 |
| 3 | Lukáš Lacko | 6$^3$ | 6 | 6 | | | | | | | | | |
| 3 | Lukáš Lacko | 6$^3$ | 6 | 6 | 3 | Lukáš Lacko | 3 | 7$^9$ | 6$^5$ | | | | |
| | | | | | | Cem İlkel | 6 | 6$^7$ | 7$^7$ | | | | |
| | Vít Kopřiva | 2 | 7$^7$ | 1 | | Cem İlkel | 6 | 6$^7$ | 7$^7$ | | | | |
| | Cem İlkel | 6 | 6$^1$ | 6 | | | | | | | | | |

### Top half
#### Section 1

| 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 | Quarterfinals |
| | | | | | 1 | G García López | 1 | 6 | 6 | | | | | | | | | |
| | T Kamke | 7$^7$ | 6 | | | T Kamke | 6 | 3 | 4 | | | | | | | | | |
| WC | V Royer | 6$^4$ | 2 | | | | | | | 1 | G García López | 4 | 3 | | | | | |
| | R Bemelmans | 6$^6$ | 6$^3$ | | | | | | | 14 | Z Kolář | 6 | 6 | | | | | |
| | M Guinard | 7$^8$ | 7$^7$ | | | M Guinard | 5 | 6 | 0 | | | | | | | | | |
| | | | | | 14 | Z Kolář | 7 | 2 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | 14 | Z Kolář | 4 | 6 | 3 |
| | | | | | | | | | | | | | | 5 | M Janvier | 6 | 1 | 6 |
| | | | | | 12 | M Moraing | 6 | 4 | 6$^4$ | | | | | | | | | |
| | D Masur | 6 | 3 | 6 | | D Masur | 3 | 6 | 7$^7$ | | | | | | | | | |
| | L Miedler | 4 | 6 | 3 | | | | | | | D Masur | 4 | 3 | | | | | |
| | A Pellegrino | 6$^5$ | 3 | | | | | | | 5 | M Janvier | 6 | 6 | | | | | |
| | L Klein | 7$^7$ | 6 | | | L Klein | 3 | 6$^3$ | | | | | | | | | | |
| | | | | | 5 | M Janvier | 6 | 7$^7$ | | | | | | | | | | |

#### 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 | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 4 | E Couacaud | 4 | 5 | | | | | | | | | | |
| | A Rinderknech | 7$^7$ | 7$^7$ | | | A Rinderknech | 6 | 2$^r$ | | | | | | | | | | |
| Q | A Escoffier | 6$^4$ | 6$^5$ | | | | | | | 4 | E Couacaud | 1 | 6 | 4 | | | | |
| | T Macháč | 7$^{12}$ | 6 | | | | | | | 16 | M Bourgue | 6 | 4 | 6 | | | | |
| | U Ignatik | 6$^{10}$ | 2 | | | T Macháč | 6$^3$ | 4 | | | | | | | | | | |
| | | | | | 16 | M Bourgue | 7$^7$ | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 16 | M Bourgue | 6 | 6 |
| | | | | | | | | | | | | | | | 9 | M Bachinger | 4 | 4 |
| | | | | | 9 | M Bachinger | 7$^7$ | 5 | 6 | | | | | | | | | |
| Q | L Musetti | 3 | 6$^6$ | | | T Gabashvili | 6$^4$ | 7 | 4 | | | | | | | | | |
| | T Gabashvili | 6 | 7$^8$ | | | | | | | 9 | M Bachinger | 6 | 7 | | | | | |
| | N Serdarušić | 6 | 6$^6$ | 6 | | | | | | 7 | B Zapata Miralles | 4 | 5 | | | | | |
| | M Eriksson | 1 | 7$^8$ | 4 | | N Serdarušić | 6$^4$ | 3 | | | | | | | | | | |
| | | | | | 7 | B Zapata Miralles | 7$^7$ | 6 | | | | | | | | | | |

### Bottom half
#### Section 3

| 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 | Quarterfinals |
| | | | | | 8 | H Moriya | 2 | 6$^5$ | | | | | | | | | | |
| | R Brancaccio | 1 | 6 | 3 | | M Zverev | 6 | 7$^7$ | | | | | | | | | | |
| | M Zverev | 6 | 4 | 6 | | | | | | | M Zverev | 6 | 6 | | | | | |
| WC | J Janowicz | 6 | 6 | | | | | | | 11 | Q Halys | 4 | 0 | | | | | |
| WC | E Furness | 3 | 4 | | WC | J Janowicz | | | | | | | | | | | | |
| | | | | | 11 | Q Halys | w/o | | | | | | | | | | | |
| | | | | | | | | | | | | | | | M Zverev | 7$^7$ | 2 | 4 |
| | | | | | | | | | | | | | | 3 | L Lacko | 6$^3$ | 6 | 6 |
| | | | | | 15 | R Ortega Olmedo | 7$^7$ | 6 | | | | | | | | | | |
| WC | D Added | 4 | 6 | 6$^4$ | | L Vanni | 6$^4$ | 1 | | | | | | | | | | |
| | L Vanni | 6 | 3 | 7$^7$ | | | | | | 15 | R Ortega Olmedo | 2 | 2 | | | | | |
| | A Arnaboldi | 6 | 6 | | | | | | | 3 | L Lacko | 6 | 6 | | | | | |
| | A Molčan | 1 | 4 | | | A Arnaboldi | 6$^{11}$ | 6 | 3 | | | | | | | | | |
| | | | | | 3 | L Lacko | 7$^{13}$ | 4 | 6 | | | | | | | | | |

#### Section 4

| 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 | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 6 | A Vatutin | 6$^6$ | 6 | 1 | | | | | | | | | |
| WC | K Jacquet | 7$^7$ | 3 | 6 | WC | K Jacquet | 7$^8$ | 2 | 0$^r$ | | | | | | | | | |
| | M Bašić | 6$^4$ | 6 | 3 | | | | | | 6 | A Vatutin | 6$^2$ | 6$^4$ | | | | | |
| | P Krstin | 3 | 3 | | | | | | | | V Kopřiva | 7$^7$ | 7$^7$ | | | | | |
| | V Kopřiva | 6 | 6 | | | V Kopřiva | 6 | 7$^8$ | | | | | | | | | | |
| | | | | | 10 | T Lamasine | 4 | 6$^6$ | | | | | | | | | | |
| | | | | | | | | | | | | | | | V Kopřiva | 2 | 7$^7$ | 1 |
| | | | | | | | | | | | | | | | C İlkel | 6 | 6$^1$ | 6 |
| | | | | | 13 | C Lestienne | 6 | 6 | | | | | | | | | | |
| | P Kotov | 5 | 1 | | | A Çelikbilek | 4 | 4 | | | | | | | | | | |
| | A Çelikbilek | 7 | 6 | | | | | | | 13 | C Lestienne | 6 | 5 | 3 | | | | |
| | V Durasovic | 6 | 4 | 4 | | | | | | | C İlkel | 4 | 7 | 6 | | | | |
| | C İlkel | 4 | 6 | 6 | | C İlkel | 7$^8$ | 3 | | | | | | | | | | |
| | | | | | 2 | D Petrović | 6$^6$ | 1$^r$ | | | | | | | | | | |