HCA Marathon is a celebrated running event held in Odense, Denmark, and it will mark its 25th anniversary on September 28, 2025. This marathon combines joy, community spirit, and the unique opportunity for runners of all levels—ranging from beginners to seasoned marathoners—to experience an exciting day amidst the scenic streets of Odense, the hometown of Hans Christian Andersen. Participants can choose from various distances, including a full marathon (42.195 km), a half marathon (21.097 km), or the MiniMarathon for younger runners at 4.2 km.

In addition to the marathon, HCA Marathon features special events like the Fynske Udfordring, uniting three iconic races into one grand challenge. Registered runners will receive a commemorative bag and have the option to purchase a uniquely designed Nike Dri-FIT T-shirt, celebrating the anniversary with artistic flair inspired by Andersen's fairy tales. With its festive atmosphere and fast, traffic-free routes, HCA Marathon is not just a race; it's a memorable celebration of camaraderie and endurance in the heart of adventure-filled Odense.