2025 Cassis Open Provence
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The 2025 Cassis Open Provence was a professional tennis tournament played on hard courts. It was the seventh edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Cassis, France between 1 and 7 September 2025.
Singles main-draw entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| FRA | Quentin Halys | 70 | 1 |
| EST | Mark Lajal | 147 | 2 |
| GBR | Billy Harris | 151 | 3 |
| AUT | Jurij Rodionov | 154 | 4 |
| FRA | Titouan Droguet | 159 | 5 |
| KAZ | Timofey Skatov | 192 | 6 |
| FRA | Sascha Gueymard Wayenburg | 206 | 7 |
| MON | Valentin Vacherot | 216 | 8 |
- 1 Rankings are as of 25 August 2025.
Other entrants
The following players received wildcards into the singles main draw:
- France Étienne Donnet
- France Maé Malige
- France Benoît Paire
The following player received entry into the singles main draw through the Next Gen Accelerator programme:
- India Aryan Shah
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
- France Kenny de Schepper
- Germany Justin Engel
- France Maxime Janvier
- Switzerland Jakub Paul
- Poland Olaf Pieczkowski
- United Kingdom Hamish Stewart
The following player received entry as a lucky loser:
Champions
Singles
- United Kingdom Billy Harris def. Estonia Daniil Glinka 3–6, 7–5, 6–3.
Doubles
- Austria David Pichler / Austria Jurij Rodionov def. France Arthur Reymond / France Luca Sanchez 7–6(7–2), 6–4.