The 2022 Open Blot Rennes was a professional tennis tournament played on hard courts. It was the sixteenth edition of the tournament and part of the 2022 ATP Challenger Tour. It took place in Rennes, France between 12 and 18 September 2022.

Singles main-draw entrants Seeds Country Player Rank1 SeedHugo Gaston721Peter Gojowczyk1082Hugo Grenier1193Ugo Humbert1384Ryan Peniston1405Grégoire Barrère1636Benoît Paire1737Gijs Brouwer1818 1 Rankings are as of 29 August 2022.

Other entrants The following players received wildcards into the singles main draw: Clément Chidekh Gabriel Debru Dominic Thiem

The following players received entry from the qualifying draw: Filip Bergevi Karl Friberg Yannick Mertens Maxime Mora Max Hans Rehberg Marko Topo

Champions Singles

Ugo Humbert def. Dominic Thiem 6–3, 6–0.

Doubles

Jonathan Eysseric / David Pel def. Dan Added / Albano Olivetti 6–4, 6–4.

References