Jack Bristol Lake Waramaug Ultra Races

Kent, United States • 27 Apr 2025

The Jack Bristol Lake Waramaug Ultra Races, taking place on April 27, 2025, is a celebrated ultra-running event in Kent, Connecticut, marking its 51st anniversary. Known as the oldest 100K race in the United States, it features three race distances: 100K, 50 miles, and 50K, all set on scenic, primarily flat paved roads around Lake Waramaug. Participants can enjoy well-stocked aid stations, post-race food, and unique finisher medals and T-shirts. The event is part of the Mount to Coast 100K Series, with awards for top finishers and a special jacket for those completing multiple races in the series. Visit the organization's website for the most recent information.

Race information

100 km
100k
50 mi
50 Miler
50 km
50k
Visit the organization's website for the most recent information.
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