Mustaschmilen Stockholm transforms Solvalla racetrack into a running arena for one day in November, supporting the Swedish Prostate Cancer Foundation and Mustaschkampen. The program features a 5 km (3.1 miles), 10 km (6.2 miles), and a 1 km (0.6 miles) children’s race. The two longer races are run on a looped 1 km course inside the stadium, with music, speakers, and crowds creating a lively atmosphere throughout.<br><br>The event is open to all levels, from experienced runners to families and casual participants. Every finisher receives a medal, and participants can purchase the annual Mustaschmilen T-shirt, with proceeds directly funding cancer research and awareness. With hundreds of runners on the track, supportive crowds, and charity at its core, Mustaschmilen blends competitive spirit with a stadium-style community celebration.