Join one of Brittany's largest and most beloved running celebrations at Les Métropolitaines BLOT 2026 in Saint-Grégoire, near Rennes, on Sunday, January 18, 2026. Now in its 31st edition, this iconic event offers three inclusive distances: the competitive 10km international race with FFA Gold Label, the women's-only 7.5km "Grégorienne," and a non-timed 5km fun run, attracting over 5,500 participants annually. More than just a race, it's a powerful force for community and solidarity, donating 1€ from each entry to neuroscience research through Bretagne Atlantique Ambition and organizing book drives for hospitalized children. Born from a grassroots idea to run on a new bypass before it opened to traffic, the event has grown into a premier winter fixture known for its exceptional organization, festive village, and deep local engagement. Whether you're chasing a personal best or enjoying a family morning out, Les Métropolitaines delivers an unforgettable experience where sport, charity, and Breton spirit brilliantly converge. Prepare for a day of fast times, warm hearts, and true running camaraderie in the vibrant Ille-et-Vilaine region.
Races Offered
10 km
Jan 18, 2026
straighten
Distance —
10K
terrain
Type —
Others,
Running
timer
10:00
7.5 km
Jan 18, 2026
straighten
Distance —
7.5K
terrain
Type —
Others,
Running
timer
11:15
Weather Overview
These values represent the 3-year monthly averages for January in Saint-Grégoire, Ille-et-Vilaine.
Temp (°C)
Feels Like (°C)
thermostat2.6° / 8.6°
wb_sunny-1.4° / 4.7°
Wind (km/h)
Humidity (%)
air14.0 /
water_drop86.6%
Temp (°C)
Feels Like (°C)
Wind (km/h)
Humidity (%)
thermostat2.6° / 8.6°
wb_sunny-1.4° / 4.7°
air14.0 km/h
water_drop86.6%
About Saint-Grégoire, Ille-et-Vilaine
Learn more about the host city, Saint-Grégoire, Ille-et-Vilaine.
Saint-Grégoire is a commune in the department of Ille-et-Vilaine, Brittany, northwestern France.
