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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 while enjoying the camaraderie of fellow runners. The event encourages flexibility, allowing runners to take breaks as needed, with no official "Did Not Finish" (DNF) status. Each participant receives a finisher award, and unique prizes are awarded to the top male and female runners in both categories. The event fosters a supportive atmosphere, making it a unique challenge for endurance athletes. 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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