The Semi-marathon de Chartres Sitrans offers a 5 km, a 10 km, and a half marathon during a weekend in early March in Chartres, Eure-et-Loir, France. This timed city running event attracts a wide range of participants, allowing them to select from a short, quick race to the 21.0975 km half marathon. The schedule also features children's races, with distances for juniors from 500 m to 2,500 m.
The primary half marathon is named for Sitrans and UNICEF. The shorter races are the 5 km de l’Echo Republicain and the 10 km de l’ACLAM. Recent events have seen over 5,000 finishers in the main races, along with more than 200 children in the UNICEF races. The event relies on a substantial volunteer team, with approximately 270 volunteers noted for a recent edition, and has established a Strava presence for digital race engagement.