Jack Bristol Lake Waramaug Ultra Races
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Jack Bristol Lake Waramaug Ultra Races : April 26, 2026
The Jack Bristol Lake Waramaug Ultra Races take place around Lake Waramaug in Kent, Connecticut. The event marks its 52nd anniversary and is USATF sanctioned. Distances offered include:
- 100K seven laps plus 2.3 mile out-and-back
- 50 Miler six laps finishing at the State Park
- 50K three 7.6-mile laps plus 1.9 mile out-and-back
The course uses paved roads around the lake with rolling loops and primarily flat sections. Runners complete an initial clockwise 2.2 mile out followed by a counter-clockwise return at the start area before lap work begins. The finish is at the State Park; the nearest intersection is Lake Waramaug Road and Anderson Acres Extension. Coordinates for the park are N 41 42.47, W 073 23.059.
There are four well stocked aid stations positioned around the lake and post-race food and drinks for finishers. Distances between stations from the main start/finish are about 1.8, 1.9, 1.7, and 2.2 miles. Time limits are 12 hours for the 50K and 13 hours for the 50M and 100K; race officials may consider conditions when permitting continuation. Bib pickup begins one hour before each race.
Entrants receive a hi-tech t-shirt, finish medals for the 50K and 50M, a buckle for 100K finishers, and a special Mount to Coast medal. T-shirt sizes are not guaranteed after March 15. Registration closes April 24, 2026. Visit the organization's website for the most recent information.
