Jack Bristol Lake Waramaug Ultra Races
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Jack Bristol Lake Waramaug Ultra Races
The Jack Bristol Lake Waramaug Ultra Races take place at Lake Waramaug State Park in Kent, CT on April 25, 2027. The event marks the 53rd anniversary and is described as the oldest ultras in Connecticut and the oldest 100K in the United States.
Distances offered:
- 100K
- 50 Miler
- 50K
The course consists of rolling loops on paved roads around the lake. Runners follow an initial clockwise 2.2 mile out-and-back section and then counter-clockwise laps around the lake. The 50K includes three 7.6 mile laps plus a 1.9 mile out-and-back to the finish at the State Park. The 50 Miler completes six laps; the 100K completes seven laps plus a 2.3 mile out-and-back to finish. Most of the route is primarily flat.
There are four well stocked aid stations placed around the lake and post-race food and drinks for finishers. Distances from the main start/finish to the aid stations are listed as 1.8 miles, 1.9 miles, 1.7 miles, and 2.2 miles between points in sequence. Time limits are 12 hours for the 50K and 13 hours for the 50 Miler and 100K; race officials may consider extensions based on safety and conditions.
Race entry covers a hi-tech T-shirt, finish medals for 50K and 50M, a buckle for 100K finishers, and additional finisher recognition from Mount to Coast. T-shirt sizes are not guaranteed after March 15, 2027. Registration opens October 1, 2026. Visit the organization's website for the most recent information.
