The Wiener Winterlauf, also known as the Vienna Calling Half Marathon, is a road race held in Vienna, Austria, as part of the VCM Winterlaufserie. The primary event is the Vienna Calling Half Marathon, covering 21.1 km and commencing at 08:00. Shorter distances of 10 km, 5 km, and 1 mile are also available, with starts scheduled for 11:00. Entry fees are generally between €17 and €30, and the event typically attracts between 501 and 1,000 participants.
The half marathon begins at Reichsbrücke and concludes in Prater Hauptallee. The 1-mile, 5 km, and 10 km races commence directly within Prater Hauptallee. This course structure accommodates various runners on the same morning: those seeking a full winter half marathon challenge and others opting for a shorter road distance. Race result manages the timing, and one recorded edition saw 928 finishers, reflecting the event's practical, local character over a large city-marathon feel.