Bimblers Bluff 50k

Bimblers Bluff 50K is an off-road ultramarathon in southern Connecticut, starting at Guilford Lakes School in Guilford. The 50-kilometer course weaves through interconnected woodland preserves, using rolling forest roads and rocky single-track. The route is notable for not requiring repeated loops, offering an adventurous, non-traditional challenge that tests fitness and mental stamina.

Entrants receive a goodie bag with bib and race shirt; finishers within a 10-hour limit earn a finisher award, with separate awards for the top male and female. The event is 100% not-for-profit, with proceeds donated to local land-conservation groups; volunteers welcome. Registration runs May 18 through race day or until full. Visit the organization's website for the most recent information.