Jack Bristol Lake Waramaug Ultra Races

Event details

The Jack Bristol Lake Waramaug Ultra Races take place on April 26, 2026 in Kent, CT at Lake Waramaug. The event marks the 52nd anniversary and is part of the Mount To Coast 100K Series. Distances offered:

• 100K
• 50 Miler
• 50K

Mount To Coast is a series sponsor. Completing three of the four races in the series earns an exclusive jacket. Overall male and female winners of each race receive a certificate for a pair of R1 Mount to Coast shoes.

Course, aid stations and awards

The course uses rolling loops on paved roads around Lake Waramaug and includes both clockwise and counterclockwise sections. The start is near the intersection of Lake Waramaug Road and Anderson Acres Road. Race lap details: the 50K includes three 7.6 mile laps plus a 1.9 mile out-and-back to the State Park finish; the 50 mile is six laps; the 100K is seven laps plus a 2.3 mile out-and-back. There are four staffed aid stations around the lake with post-race food. Distances between the main start/finish and aid stations are 1.8 miles, 1.9 miles, 1.7 miles, and 2.2 miles. Time limits are 12 hours for the 50K and 13 hours for the 50M and 100K; race officials may consider extensions based on conditions and safety. Entry includes a technical T-shirt, post-race food, custom buckles for 100K finishers, medals for 50K and 50M finishers, and a special Mount To Coast finisher medal. Visit the organization's website for the most recent information.

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