Vermont 100 Mile Endurance Run

The Vermont 100 Mile Endurance Run (Vermont 100) is a 100-mile (162 km) long ultramarathon held annually in July at Silver Hill Meadow in West Windsor, Vermont. It is one of the five 100-mile races that comprise the Grand Slam of Ultrarunning and one of only two hundred mile races in northern New England. It is also the only known ultra race in the USA where entrants run alongside horses over a similar course, in a separate but simultaneous race. (Horses avoid some of the more treacherous single-track and technical trails.) The race has been held every year since 1989.

The race, which was founded by Mike Howe and Laura Farrell, is a fundraising event put on by and in support of Vermont Adaptive Ski and Sports (VASS), a non-profit that provides sports and recreational opportunities to people with disabilities.