2020 Open de Rennes

The 2020 Open de Rennes was a professional tennis tournament played on hard courts. It was the fourteenth edition of the tournament and part of the 2020 ATP Challenger Tour. It took place in Rennes, France between 20 and 26 January 2020.

Seeds

 * 1 Rankings are as of 13 January 2020.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇫🇷 Dan Added
 * 🇫🇷 Evan Furness
 * 🇫🇷 Kyrian Jacquet
 * 🇵🇱 Jerzy Janowicz
 * 🇫🇷 Valentin Royer

The following players received entry into the singles main draw as alternates:
 * 🇮🇹 Alessandro Bega
 * 🇫🇷 Antoine Escoffier
 * 🇫🇮 Patrik Niklas-Salminen

The following players received entry from the qualifying draw:
 * 🇫🇷 Corentin Denolly
 * 🇷🇺 Teymuraz Gabashvili

Singles

 * 🇫🇷 Arthur Rinderknech def. 🇬🇧 James Ward 7–5, 6–4.

Doubles

 * Antonio Šančić / 🇦🇹 Tristan-Samuel Weissborn def. 🇷🇺 Teymuraz Gabashvili / 🇸🇰 Lukáš Lacko 7–5, 6–7(5–7), [10–7].