Jack Bristol Lake Waramaug Ultra Races

APR
25
2027
A multi-lap ultramarathon around scenic Lake Waramaug in Kent, CT offering 100K, 50M and 50K distances with aid stations, finisher awards, and a long event history.
Sun 25 Apr 2027
100 kilometers 50 miles 50 kilometers

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Jack Bristol Lake Waramaug Ultra Races

The Jack Bristol Lake Waramaug Ultra Races take place in Kent, CT around Lake Waramaug. The 2027 event marks the 53rd anniversary and includes multiple ultramarathon distances held on a multi-lap course on paved roads around the lake.

Distances:

  • 100K (seven laps plus a 2.3 mile out-and-back to the State Park)
  • 50 Miler (six laps finishing at the State Park)
  • 50K (three 7.6 mile laps plus a 1.9 mile out-and-back to the State Park)

The course consists of rolling loops and is described as primarily flat on paved roads. The start/finish area is at the state park near the intersection of Lake Waramaug Road and Anderson Acres Road; coordinates for the park are provided by the organizer.

There are four well-stocked aid stations positioned around the lake and post-race food and drinks for runners. Distances between the main start/finish and successive stations are approximately 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 50 Miler and 100K. Race officials may allow continuation or make other safety-based decisions at their discretion. Entry includes a hi-tech T-shirt, finish medals for the 50K and 50M, a buckle for 100K finishers, and a special finisher medal from Mount to Coast. T-shirt sizes are not guaranteed after March 15. Visit the organization's website for the most recent information.

100 km
100k
50 mi
50 Miler
50 km
50k
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