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Doomsday - Cool, CA

Cool, United States • 13 Dec 2025

The Doomsday 50K & Half Marathon takes place in Cool, California, offering runners two challenging distances: a 50K with 5,100 feet of elevation gain/loss and a Half Marathon with 1,250 feet gain/loss. Both races start together at the Cool Staging Area. The course is scenic and hiker-friendly, with generous cut-off times of 9.5 hours for the 50K and 5 hours for the Half Marathon, allowing trekking poles.

Aid stations are strategically placed, with five for the 50K and one for the Half Marathon. Participants receive a race shirt and a high-quality finisher's medal, with top finishers earning custom trophies. The event limits entries to 200 runners, creating an intimate atmosphere. Visit the organization's website for the most recent information.

United States California Cool

Race information

Registration Facebook
50 km
5100 m+
50k
13 mi
1250 m+
Half Marathon
Visit the organization's website for the most recent information.
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