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Rockin' Rockwoods 53K and 1/2 Marathon

Pacific, United States • 13 Sep 2025

The Rockin' Rockwoods 53K and 1/2 Marathon is an annual trail running event held at Greensfelder County Park in Wildwood, Missouri. Featuring a challenging course on the scenic Green Rock Trail, the race includes a 53K ultra, a 1/2 marathon, and a 1/2 marathon ruck division where participants carry a minimum 20 lb pack. The terrain is technical with steep hills, rocks, roots, and creek crossings, offering 95% single track.

Aid stations are spaced about every 5.5 miles, providing hydration and snacks. The event emphasizes sustainability as a cup-free race and offers custom medals, post-race food, and beer. It is known as one of the toughest trail races in St.

Louis. Visit the organization's website for the most recent information.

United States Missouri Pacific

Race information

Website Registration
53 km
1585 m+
53k
21 km
2200 m+
1/2 Marathon
21 km
2200 m+
1/2 Marathon Ruck
Visit the organization's website for the most recent information.
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