La Fortifiée is a road marathon held in Parfondeval, a village in the Aisne department of Hauts-de-France. The race covers the full 42.195 km marathon distance and also offers a relay option, allowing runners to complete the course individually or share the distance with a team.
The route is a single-loop, city-to-city road race in the Thiérache area of Picardy. The event uses the phrase “a race that fortifies you,” fitting its name and establishing a local, tough identity. The previous edition had over 100 participants, indicating a small-field marathon rather than a large, crowded event.