Sioux City, Iowa's Premier Running Event. Featuring a Kids Run, 5K, 10K, and 1/2 Marathon, with all new awards! All courses will be Flat, Fast & Fun! Starting and Finishing at the Siouxland Expo Center and continuing on the Missouri River Trail next to it. Proceeds will help support the efforts of the H.A.R.T. Program. Helping Athlete's Run & Train. The 1/2 Marathon will have an updated course because of the flooding on the Big Sioux and Missouri River in 2024. The FULL Marathon has again been cancelled to the reconstruction on the course. The Marathon will be back in 2026 as a 3 State Marathon. Mother Nature and the State of Iowa has spoken on the river.
Mighty Mo Run
Distance(s): 10K, 5K, Half Marathon
Race Overview: A race coming up on 09/12/2025 in Sioux City, IA. Get all the nerdy details below or follow the sign up links to secure your spot today!
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