La BTM

La BTM is a 1 km road run in Dreux, Eure-et-Loir, France, with the unusual feature that runners race inside an underground car park. The event takes place in early November and uses the tagline "I'm BaTMan," referencing the BTM initials and the below-ground setting. The course is straightforward in distance but unique in location: one hard kilometre through a parking structure instead of along streets or park paths. As it is only 1 km, the race functions as a quick charity challenge rather than a long-distance event, with its cause clearly stated: raising support for the fight against male cancers.