Mighty Mo Run

SEP
11-13
2026
Experience a flat and fast multi state course along the Missouri River Trail in Sioux City. Choose from 5K to Full Marathon distances with an indoor start and finish at the Siouxland Expo Center.
11-13 Sep 2026
Marathon Half Marathon 10 kilometers 5 kilometers

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 held in Sioux City, Iowa. The races take place over three days in September, with activities centered at the Siouxland Expo Center. The event features a variety of distances and includes a specific series for participants who wish to compete in multiple races throughout the weekend.

Distances and Challenges

The event offers several race options for participants:

  • 5K
  • 10K
  • Half Marathon (13.1 Miles)
  • Full Marathon (26.2 Miles)
  • 1K Kid's Run
  • The "STOOGE" Challenge: A multi-day entry covering the 5K, 10K, and either the Half Marathon or Full Marathon.

Course Details

The courses are designed to be flat and utilize the Missouri River Trail. Participants run on smooth surfaces that offer scenic views of the river and sections with natural shade. Both the starting line and the finish line are located indoors at the Siouxland Expo Center. The Half Marathon follows a flat out-and-back design, while the Full Marathon features a newly redesigned course that traverses areas across three states.

Proceeds from the event support the H.A.R.T. Program (Helping Athletes Run and Train), which provides resources for athletes of various ages and abilities. Prize money is available for competitors in select categories. Visit the organization's website for the most recent information.

Marathon
Full Marathon
Half Marathon
Half Marathon
10 km
10k
5 km
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