Jack Bristol Lake Waramaug Ultra Races

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.