100 km Backyard Ultra Running Races - Race Calendar & Race List

Are you looking for 100 km Backyard Ultra running races? Our race calendar and race list will help you find the perfect race. Whether you're searching in Stockholm, Uppsala, or anywhere else in Sweden, from All counties, you'll find it here. Use our filters to find your next challenge. Browse running races and create your own running calendar. Find your next adventure with our complete running calendar!

All races in Sweden