Jack Bristol Lake Waramaug Ultra Races

The Jack Bristol Lake Waramaug Ultra Races, celebrating its 51st anniversary on April 27, 2025, is a prestigious ultra-running event held in Kent, Connecticut. It features three distances: 100K, 50 miles, and 50K, making it the oldest 100K race in the United States. The course consists of scenic, primarily flat loops around Lake Waramaug, ideal for personal records.

Participants can enjoy well-stocked aid stations, post-race food, and unique finisher's medals and T-shirts. The event is part of the Mount to Coast 100K Series, offering additional prizes for top finishers and exclusive jackets for completing multiple races in the series. Visit the organization's website for the most recent information.