Mighty Mo Run

SEP

11-13

2026

Run the Mighty Mo in Sioux City across three days of flat races on the Missouri River Trail, from a kids run to a half marathon. Proceeds support H.A.R.T. and finishers who complete all three days earn The Stooge shirt.

11-13 Sep 2026

Sioux City, Iowa

Website

26 miles 13 miles 6 miles 3 miles

Always double-check with the organizer's website! This page may contain affiliate links.

Event overview

The Mighty Mo Run is a multi-day running event in Sioux City, Iowa, held Friday, September 11 to Sunday, September 13, 2026. Races start and finish at the Seaboard Triumph Foods Expo Center and use the Missouri River Trail for parts of the courses. Organizers state that all courses are flat. Proceeds will support the H.A.R.T. Foundation. The half and full marathon courses will be certified.

Races and features

13.1 miles Half Marathon
6.2 miles 10K
3.1 miles 5K
Kids Fun Run for ages 12 and under

The event includes a three-day participation option called "The Stooge," which awards runners who complete events on all three days and provides a unique t-shirt. Course maps and a detailed start/finish map are provided for the half marathon and the expo center area. The schedule spans three days with separate race days for the 5K, 10K, half marathon, and kids run. Visit the organization's website for the most recent information.

26 mi

Full Marathon

13 mi

Half Marathon

6 mi

10k

3 mi