- Source: 2018 Cassis Open Provence
The 2018 Cassis Open Provence was a professional tennis tournament played on hard courts. It was the 1st edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Cassis, France between 4 and 9 September 2018.
Singles main-draw entrants
= Seeds
=1 Rankings are as of 27 August 2018.
= Other entrants
=The following players received wildcards into the singles main draw:
Elliot Benchetrit
Mathias Bourgue
Alexandre Müller
Arthur Rinderknech
The following players received entry from the qualifying draw:
Enzo Couacaud
Dan Evans
Jonathan Kanar
Tak Khunn Wang
Champions
= Singles
=Enzo Couacaud def. Ugo Humbert 6–2, 6–3.
= Doubles
=Matt Reid / Sergiy Stakhovsky def. Marc-Andrea Hüsler / Gonçalo Oliveira 6–2, 6–3.