The 2026 Open Blot Rennes was a professional tennis tournament played on indoor hard courts. It was the 20th edition of the tournament and part of the 2026 ATP Challenger Tour. It took place in Rennes, France between 14 and 20 September 2026.
Singles main-draw entrants Seeds Country Player Rank1 SeedAdrian Mannarino671Titouan Droguet1032Clément Tabur1593Billy Harris1614Borna Gojo1625Francesco Maestrelli1686Tristan Schoolkate1807Clément Chidekh1858 1 Rankings are as of 31 August 2026.
Other entrants The following players received wildcards into the singles main draw: Mickael Kaouk Arthur Nagel Leo Raquillet
The following player received entry into the singles main draw as an alternate: Marek Gengel
The following players received entry from the qualifying draw: Finn Bass Matisse Bobichon Yanis Ghazouani Durand Maxime Janvier Daniel Masur Max Schönhaus
Champions Singles
Sascha Gueymard Wayenburg def. Harold Mayot 4–6, 6–3, 7–5.
Doubles
Sander Arends / Bart Stevens def. Ivan Liutarevich / Joshua Paris 6–1, 6–1.
References