La Champenoise de la Vallée de la Marne is an 18 km race held in Reuil, located in France's Grand Est region. Participants can opt for the classic timed race for those focused on performance, or a non-timed, festive version emphasizing food, costumes, and a relaxed pace.
The festive option defines the event's character, encouraging participants to wear costumes and taste regional delicacies during the run. Following the race, many attendees extend their stay in the vicinity, with Épernay, known as the Champagne capital and home to renowned champagne houses, situated approximately 30 minutes from Reuil.