The Marceliński Summer Run 10K is a mid-summer trail race held within Marceliński Park in Poznań. It offers city runners a 10 km challenge without leaving town, and its modest size ensures the start area remains relaxed, not congested.
The route consists of two laps on park paths, allowing runners to establish a rhythm and monitor their pace. While the course is not officially certified, it bypasses road traffic and provides a gentler, more natural alternative to street running. It is suitable for individuals assessing their summer fitness, adding variety to training, or preparing for fall road races, with the organizer providing only essential race amenities.