The 2021 Cassis Open Provence was a professional tennis tournament played on hard courts. It was the 3rd edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Cassis, France between 6 and 12 September 2021.

Singles main-draw entrants Seeds Country Player Rank1 SeedBenjamin Bonzi941Yasutaka Uchiyama1232Christopher O'Connell1263Mikhail Kukushkin1294Lucas Pouille1335Grégoire Barrère1366Jurij Rodionov1407Liam Broady1478 1 Rankings are as of 30 August 2021.

Other entrants The following players received wildcards into the singles main draw: Clément Chidekh Arthur Fils Luca Van Assche

The following players received entry into the singles main draw as alternates: Hugo Grenier Tatsuma Ito Bernard Tomic Yosuke Watanuki

The following players received entry from the qualifying draw: Nicolás Jarry Hiroki Moriya Giovanni Mpetshi Perricard Ramkumar Ramanathan

The following players received entry as lucky losers: Arthur Cazaux Alexis Galarneau Laurent Lokoli

Champions Singles

Benjamin Bonzi def. Lucas Pouille 7–6(7–4), 6–4.

Doubles

Sriram Balaji / Ramkumar Ramanathan def. Hans Hach Verdugo / Miguel Ángel Reyes-Varela 6–4, 3–6, [10–6].

References