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Night Crawler Endurance Challenge

Casper, United States • 22-23 Aug 2025

The Night Crawler Endurance Challenge is an overnight ultramarathon event held in Casper, Wyoming, featuring 4-hour and 12-hour solo running options. Set against the scenic backdrop of Casper Mountain, participants can run through forested trails, enjoying the camaraderie of fellow runners. The event encourages flexibility, allowing runners to take breaks as needed while completing as many laps as possible within their chosen time frame. With no official "Did Not Finish" (DNF) status, every participant is celebrated for their efforts. The event also includes awards for top finishers and guarantees a finisher award for all participants. Visit the organization's website for the most recent information.

United States Wyoming Casper

Race information

Website Registration
12 hr
12 Hours
4 hr
4 Hours
Visit the organization's website for the most recent information.
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