Ultra Challenge 2024 Calendar. Filter the events by keywords, location, date range and event type, or see them on a map with premium. Ultra challenge offers various distance and difficulty options for walkers, joggers, and runners across the uk.

Plan your next ultra marathon with this complete event calendar for north american ultra running events including trail races and road races. Choose from 100, 75, 50, 25 km or 10 miles, and enjoy full support, camping, food, medals and more.