| Singles | |
|---|---|
| 2023 Brest Challenger | |
| Champion |  Pedro Martínez |
| Runner-up |  Benjamin Bonzi |
| Score | 7–6(8–6), 7–6(7–1) |
Grégoire Barrère was the defending champion [1] but chose not to defend his title.
Pedro Martínez won the title after defeating Benjamin Bonzi 7–6(8–6), 7–6(7–1) in the final.
Richard Gasquet (first round)
Nuno Borges (second round) Jaume Munar (first round) Benjamin Bonzi (final) Constant Lestienne (semifinals) Hugo Gaston (semifinals)
Liam Broady (second round)
David Goffin (second round)| Semifinals | Final | ||||||||||||
| 6 | Hugo Gaston | 6 | 2 | 4 | |||||||||
| 4 | Benjamin Bonzi | 3 | 6 | 6 | |||||||||
| 4 | Benjamin Bonzi | 66 | 61 | ||||||||||
| Pedro Martínez | 78 | 77 | |||||||||||
| Pedro Martínez | 6 | 7 | |||||||||||
| 5 | Constant Lestienne | 4 | 5 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1/WC | R Gasquet | 1 | 4 | ||||||||||||||||||||||||
 B Nakashima | 6 | 6 | B Nakashima | 2 | 6 | 5 | |||||||||||||||||||||
| A Cazaux | 6 | 6 | A Cazaux | 6 | 3 | 7 | |||||||||||||||||||||
| SE |  D Novak | 3 | 4 | A Cazaux | 2 | 2 | |||||||||||||||||||||
 G Zeppieri | 6 | 3 | 6 | H Gaston | 6 | 6 | |||||||||||||||||||||
| A Escoffier | 3 | 1r | G Zeppieri | 66 | 3 | ||||||||||||||||||||||
| LL | G Blancaneaux | 0 | 4 | 6 | H Gaston | 78 | 6 | ||||||||||||||||||||
| 6 | H Gaston | 6 | 6 | 6 | H Gaston | 6 | 2 | 4 | |||||||||||||||||||
| 4 | B Bonzi | 6 | 7 | 4 | B Bonzi | 3 | 6 | 6 | |||||||||||||||||||
| P Llamas Ruiz | 3 | 5 | 4 | B Bonzi | 4 | 78 | 6 | ||||||||||||||||||||
| WC | G Mpetshi Perricard | 77 | 65 | 4 | Q | C Hemery | 6 | 62 | 2 | ||||||||||||||||||
| Q | C Hemery | 62 | 77 | 6 | 4 | B Bonzi | 6 | 6 | |||||||||||||||||||
| Q | R Peniston | 2 | 4 | Q | A Fery | 3 | 4 | ||||||||||||||||||||
| Q | A Fery | 6 | 6 | Q | A Fery | 6 | 65 | 6 | |||||||||||||||||||
| LL |  G Brouwer | 62 | 7 | 63 | 8 | D Goffin | 1 | 77 | 3 | ||||||||||||||||||
| 8 | D Goffin | 77 | 5 | 77 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | L Broady | 6 | 6 | ||||||||||||||||||||||||
| L Nardi | 3 | 2 | 7 | L Broady | 2 | 6 | 64 | ||||||||||||||||||||
 Z Piros | 2 | 6 | 6 | Z Piros | 6 | 4 | 77 | ||||||||||||||||||||
| Q |  D Ajduković | 6 | 2 | 4 | Z Piros | 3 | 67 | ||||||||||||||||||||
 R Albot | 64 | 6 | 6 | P Martínez | 6 | 79 | |||||||||||||||||||||
| Q |  G Diallo | 77 | 2 | 3 | R Albot | 62 | 713 | ||||||||||||||||||||
| P Martínez | 7 | 1 | 6 | P Martínez | 77 | 715 | |||||||||||||||||||||
| 3 | J Munar | 5 | 6 | 4 | P Martínez | 6 | 7 | ||||||||||||||||||||
| 5 | C Lestienne | 6 | 3 | 6 | 5 | C Lestienne | 4 | 5 | |||||||||||||||||||
 O Virtanen | 2 | 6 | 3 | 5 | C Lestienne | 6 | 2 | ||||||||||||||||||||
| C Moutet | 4 | 65 | B Paire | 2 | 0r | ||||||||||||||||||||||
| B Paire | 6 | 77 | 5 | C Lestienne | 6 | 6 | |||||||||||||||||||||
| Q | M Martineau | 6 | 4 | 3 | WC | T Droguet | 3 | 2 | |||||||||||||||||||
| WC | T Droguet | 4 | 6 | 6 | WC | T Droguet | 7 | 6 | |||||||||||||||||||
| LL | F Ferreira Silva | 3 | 3 | 2 | N Borges | 5 | 3 | ||||||||||||||||||||
| 2 | N Borges | 6 | 6 | ||||||||||||||||||||||||
Kyle Edmund and Frederico Ferreira Silva were the defending champions, but were not eligible to compete this year.
Jan Šátral was the defending champion but lost in the first round to Benjamin Bonzi.
Denis Shapovalov was the defending champion but chose not to defend his title.
Ilya Ivashka was the defending champion but chose not to defend his title.
This was the second edition of the tournament. There was no defending champion as the tournament was canceled at the quarterfinals stage due to the COVID-19 pandemic.
This was the second of two editions of the tournament in the 2021 tennis season. Benjamin Bonzi was the defending champion but lost in the second round to Jenson Brooksby.
Andreas Seppi was the defending champion but lost in the second round to Matthias Bachinger.
Grégoire Barrère was the defending champion but lost in the final to Zizou Bergs.
Aslan Karatsev was the defending champion but chose not to defend his title.
Corentin Moutet was the defending champion but chose not to defend his title.
Roberto Bautista Agut was the defending champion but chose not to defend his title.
Jo-Wilfried Tsonga was the defending champion but chose not to defend his title.
Arthur Rinderknech was the defending champion but lost in the semifinals to Benjamin Bonzi.
Mikael Ymer was the defending champion but chose not to defend his title.
Andrey Rublev defeated Félix Auger-Aliassime in the final, 7–5, 7–6(7–4) to win the singles title at the 2022 Open 13 Provence.
Defending champion Stefanos Tsitsipas defeated Alejandro Davidovich Fokina in the final, 6–3, 7–6(7–3) to win the singles tennis title at the 2022 Monte-Carlo Masters. He became the sixth player to win consecutive titles at the Monte-Carlo Masters in the Open Era. The win also earned him his second Masters 1000 title and his eighth career singles title overall.
Benjamin Bonzi was the defending champion but chose not to defend his title.
Benjamin Bonzi was the defending champion but chose not to defend his title.
Benjamin Bonzi was the defending champion but chose not to defend his title.
Benjamin Bonzi was the defending champion but chose not to defend his title.