Boulder Field 100

Over the last 8 years, Uberendurancesports has built a reputation for putting on well organized running events, many of them trail runs that are also beginner friendly. The Boulderfield 100k/50k was created to offer a new, more challenging race to our runners. We do believe that every properly trained runner can tackle this challenge but it will be more difficult than our other trail races. Elevation is estimated to be about 4000ft per 50k loop.