| Singles | |
|---|---|
| 2023 Cassis Open Provence | |
| Champion |  Mattia Bellucci |
| Runner-up |  Tomáš Macháč |
| Score | 6–3, 6–4 |
Hugo Grenier was the defending champion [1] but chose not to defend his title.
Mattia Bellucci won the title after defeating Tomáš Macháč 6–3, 6–4 in the final.
Alexandre Müller (semifinals)
Liam Broady (semifinals) Benjamin Bonzi (first round) Tomáš Macháč (final) Giulio Zeppieri (quarterfinals) Antoine Escoffier (withdrew) Mattia Bellucci (champion) Federico Gaio (second round)| Semifinals | Final | ||||||||||||
| 1 | Alexandre Müller | 6 | 3 | 68 | |||||||||
| 4 | Tomáš Macháč | 3 | 6 | 710 | |||||||||
| 4 | Tomáš Macháč | 3 | 4 | ||||||||||
| 7 | Mattia Bellucci | 6 | 6 | ||||||||||
| 7 | Mattia Bellucci | 6 | 6 | ||||||||||
| 2 | Liam Broady | 3 | 4 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Müller | 6 | 2 | 7 | |||||||||||||||||||||||
 J Sousa | 3 | 6 | 5 | 1 | A Müller | 6 | 6 | ||||||||||||||||||||
| L Lokoli | 77 | 7 | L Lokoli | 3 | 2 | ||||||||||||||||||||||
| U Blanchet | 64 | 5 | 1 | A Müller | 6 | 6 | |||||||||||||||||||||
| M Janvier | 6 | 6 | 5 | G Zeppieri | 4 | 2 | |||||||||||||||||||||
| Q |  Christian Langmo | 3 | 3 | M Janvier | 5 | 5 | |||||||||||||||||||||
| Q |  A Holmgren | 3 | 3 | 5 | G Zeppieri | 7 | 7 | ||||||||||||||||||||
| 5 | G Zeppieri | 6 | 6 | 1 | A Müller | 6 | 3 | 68 | |||||||||||||||||||
| 4 | T Macháč | 6 | 6 | 4 | T Macháč | 3 | 6 | 710 | |||||||||||||||||||
| WC | S Gueymard Wayenburg | 2 | 4 | 4 | T Macháč | 6 | 6 | ||||||||||||||||||||
 N Mejía | 4 | 6 | 6 | N Mejía | 4 | 4 | |||||||||||||||||||||
| WC | A Hoang | 6 | 3 | 3 | 4 | T Macháč | 77 | 6 | |||||||||||||||||||
 M Echargui | 78 | 61 | 3 |  A Moro Cañas | 65 | 1 | |||||||||||||||||||||
| A Moro Cañas | 66 | 77 | 6 | A Moro Cañas | 6 | 6 | |||||||||||||||||||||
 K Ivanovski | 6 | 3 | 4 | 8 | F Gaio | 3 | 2 | ||||||||||||||||||||
| 8 | F Gaio | 1 | 6 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | M Bellucci | 6 | 6 | ||||||||||||||||||||||||
| Q |  R Ramanathan | 2 | 4 | 7 | M Bellucci | 6 | 6 | ||||||||||||||||||||
| Jules Marie | 6 | 63 | 64 |  M Neuchrist | 2 | 3 | |||||||||||||||||||||
| M Neuchrist | 2 | 77 | 77 | 7 | M Bellucci | 1 | 6 | 6 | |||||||||||||||||||
| Q | Charles Broom | 6 | 7 | L Poullain | 6 | 3 | 0 | ||||||||||||||||||||
| LL | A McHugh | 2 | 5 | Q | C Broom | 65 | 4 | ||||||||||||||||||||
| Lucas Poullain | 6 | 6 | L Poullain | 77 | 6 | ||||||||||||||||||||||
| 3 | B Bonzi | 3 | 1 | 7 | M Bellucci | 6 | 6 | ||||||||||||||||||||
| LL | E Møller | 6 | 6 | 2 | L Broady | 3 | 4 | ||||||||||||||||||||
| Q |  E Benchetrit | 3 | 1 | LL | E Møller | 1 | 5 | ||||||||||||||||||||
 M Lajal | 3 | 66 | B Harris | 6 | 7 | ||||||||||||||||||||||
| B Harris | 6 | 78 | B Harris | 4 | 3 | ||||||||||||||||||||||
| Q | D Cox | 2 | 66 | 2 | L Broady | 6 | 6 | ||||||||||||||||||||
| F Ferreira Silva | 6 | 78 | F Ferreira Silva | 2 | 2 | ||||||||||||||||||||||
| D Added | 0 | 2 | 2 | L Broady | 6 | 6 | |||||||||||||||||||||
| 2 | L Broady | 6 | 6 | ||||||||||||||||||||||||
This was the second of two editions of the tournament in the 2021 tennis season. Mackenzie McDonald was the defending champion but lost in the second round to Tomáš Macháč.
Nikola Milojević was the defending champion but lost in the second round to Tomáš Macháč.
Pedro Sousa was the defending champion but chose not to defend his title.
Jannik Sinner was the defending champion and successfully defended his title, defeating Gaël Monfils in the final, 6–3, 6–4.
Maximilian Marterer was the defending champion but lost in the quarterfinals to Stefano Travaglia.
Marc Polmans was the defending champion but chose not to participate.
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.
Jack Draper was the defending champion and successfully defended his title, defeating Alexander Ritschard 3–6, 6–3, 7–6(10–8) in the final.
Benjamin Bonzi was the defending champion but chose not to defend his title.
Jiří Veselý was the defending champion but chose not to defend his title.
Benjamin Bonzi was the defending champion but chose not to defend his title.
This was the first edition of the tournament.
Alex Molčan was the defending champion but chose not to defend his title.
Tomáš Macháč was the defending champion but chose not to defend his title.
Roberto Carballés Baena was the defending champion but chose not to defend his title.
Constant Lestienne was the defending champion but chose not to defend his title.
Hugo Grenier was the defending champion but retired from his first round match against Dominik Palán.
Altuğ Çelikbilek was the two-time defending champion but lost in the second round to Antoine Escoffier.
Tomáš Macháč was the defending champion but lost in the second round to Denis Yevseyev.
Lukáš Klein was the defending champion but lost in the second round to Maximilian Marterer.