Our World, Our Community. 1st May is World Ultrarunning Day, which seeks to unite ultra communities around the globe, a call to action for each of us to take time to celebrate this unique sport. To share stories, in real-life and across social media, of the where, what, why and when people run long. It will welcome people who are interested in the sport, champion those already in it, and spread the word to those who haven’t yet heard about it. Our sponsor ULTRA magazine will plant a tree for the first 100 runners who cover over 1,000 miles*. Run for the planet. *Terms apply, see website