Bimblers Bluff 50k

Guilford, United States • 19 Oct 2025

The Bimblers Bluff 50K is an off-road trail race held in southern Connecticut, starting at Guilford Lakes School. The course traverses several interconnected woodland preserves, featuring rolling forest roads and single-track trails that can be extremely rocky. Unlike many ultras, the route does not require multiple loops, offering a unique adventure and challenge.

Designed for experienced runners, especially those who have completed recent marathons, the race tests both physical fitness and mental stamina. Participants receive a goodie bag with a race shirt and bib, and finishers within 10 hours earn a special finisher award. The event supports local land conservation efforts and is entirely nonprofit. Visit the organization's website for the most recent information.

Race information

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