100 Miles Backyard Ultra Race in Viken - Your Race Calendar

Are you looking for a challenging 100 miles Backyard Ultra in Viken? Here you'll find a detailed list of races in Norway. Our race calendar provides a complete running schedule, including both running races and mountain races. Explore running competitions and find your next race in Norway. Check out the race calendar to stay updated on running in Norway and find your next challenge.

All races in Norway