Mighty Mo Run

SEP
11-13
2026
A multi-race running event in Sioux City featuring kids, 5K, 10K, half and full marathon races plus a special Stooge award for those who run across three days; courses run along the Missouri River Trail.
11-13 Sep 2026
Marathon Half Marathon 10 kilometers 5 kilometers

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Mighty Mo Run

Mighty Mo Run is a multi-race event in Sioux City, Iowa. It includes a Kid’s Fun Run, 5K, 10K, a 1/2 Marathon, and a Full Marathon, plus a new event called "The Stooge." Organizers describe all courses as flat, fast & fun.

Distances and categories:

  • Kids Fun Run for ages 12 and under
  • 5K (3.1 miles)
  • 10K (6.2 miles)
  • 1/2 Marathon (13.1 miles)
  • Full Marathon

Start and finish are at the Seaboard Triumph Foods Expo Center, with routes continuing on the Missouri River Trail. The half marathon route follows the river through South Sioux City and Sioux City. The 1/2 and Full Marathon courses are certified.

"The Stooge" offers a unique award for participants who run events across all three days. Event proceeds support the H.A.R.T. Foundation, which helps athletes run and train. The event includes event-specific shirts and course maps for participants. Visit the organization's website for the most recent information.

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