Kaisaniemen Juoksu is a road race in Helsinki, Finland, offering both a 5 km and a half marathon. It takes place in mid-September, following the capital-city race model: accessible for newer runners, yet providing a full 21.0975 km for those seeking a longer challenge.
Both races feature single-loop courses, avoiding repeated laps. The route winds through Helsinki's public parks and alongside its lakes, incorporating more green spaces and water than a typical city-street course. The half marathon is the more popular distance, and the event welcomes both novice and experienced participants.