This race is held on New Years Eve in the city of Zurich. The race starts in the Unterrohr Sports Center. Each lap brings runners back through the sports hall. The course is comprised of 90% natural surface and 10% asphalt. The loop course follows the bank of the Limmat River.
This race is run as a 10.55 km loop repeated for marathon, half-marathon, quarter-marathon distances with 19m of vertical ascent per lap.