Jack Bristol Lake Waramaug Ultra Races

APR
25
2027
A historic ultramarathon at Lake Waramaug, CT offering 100K, 50 Mile, and 50K races on primarily flat paved loops with four aid stations and finish awards.
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 April 25, 2027 in Kent, Connecticut, with the start and finish at Lake Waramaug State Park near the intersection of Lake Waramaug Road and Anderson Acres Extension.

Distances

  • 100K
  • 50 Mile
  • 50K

The course runs on paved roads around scenic Lake Waramaug and consists of rolling loops that are primarily flat. Runners begin with a clockwise 2.2 mile out and then return counter-clockwise to the start area. The 50K includes three 7.6 mile laps around the lake followed by a 1.9 mile out and back to the State Park finish. The 50 Mile covers six laps around the lake and finishes at the State Park. The 100K is seven laps plus a 2.3 mile out and back to the State Park finish.

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 1.8 miles to the first station, 1.9 miles to the second, 1.7 miles to the third, and 2.2 miles back to the main start/finish.

Time limits are 12 hours for the 50K and 13 hours for the 50 Mile and 100K. Race officials may allow continued running beyond those limits depending on conditions and safety considerations.

Entries include a hi-tech t-shirt, finish medals for 50K and 50 Mile, a buckle for 100K finishers, a special Mount to Coast medal for all finishers, and post race food. T-shirt sizes are not guaranteed after March 15, 2027. Entry fees are listed between $163.25 and $205.85 USD. Visit the organization's website for the most recent information.

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