The KBUTC challenges you to run an out-and-back trail from Saksvik to Solemsvåttan as many times as you can within the given time limits. Test your own limits! Make it 7 times to be a real ultra-trail runner (> 42.2 km) Make it 8, 12 or 15 times to reach the classic ultra distances of 50 km, 50 miles or 100 km Make it 24 times to run 100 miles, cl