Are you up for the challenge?


rib mountatin adventure challenge

The Rib Mountain Adventure Challenge is an adventure race in which teams of 2-4 members and soloists will run, bike, and paddle their way through the rugged and beautiful Central Wisconsin wilderness using only a map and compass to find the way. Team members must stick together throughout the duration of the race.

With plenty of route choices and obstacles to test your team’s physical strength and mental resolve, this race will be fun for beginners and seasoned athletes alike.

Choose from the 3-hour, 8-hour, or 18-hour challenge.

Logo byGary Barden Design

All photography provided byAnn Ilagan Photography


This race is a part of Wisconsin’s premier adventure race series featuring races throughout Wisconsin, Illinois, and Minnesota, with cash prizes totaling over $2,000. See the Wisconsin Adventure Racing Series race calendar and find out how your team can compete in the series.

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IRONBULL is a charitable organization that promotes outdoor adventure sports and healthy lifestyle in Central Wisconsin. IRONBULL puts on a number of other races including the the Ultra Trail Marathon 50k & 15k, and the Red Granite Grinder gravel race.

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Presented by the Town of Rib Mountain


Sponsored in part by the city of Wausau Room Tax


sponsored in part by the Wisconsin Department of Tourism


the team

rib mountain racing

Erik Martinez, Tim Buchholz (RD), Anna Nummelin (RD)

Find out more about Rib Mountain Adventure Challenge race directors (RDs) Tim and Anna, and their top ranked team, Rib Mountain Racing.

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