Friday, September 15 – Sunday, September 17, 2023 Sioux City

12536-Mighty Mo Run

The Mighty Mo Races

Sioux City, Iowa’s premier running event.
Featuring a Kid’s Fun Run, 5K, 10K, 1/2 Marathon and Full Marathon.
All courses will be Flat, Fast & Fun! 



26.2 miles

Sunday 9/17 7:00am


13.1 miles

Sunday 9/17 7:00am


6.2 miles

Saturday 9/16 7:30am


3.1 miles

Friday 9/15 6:30pm

Kid's Fun Run

1/2 mile

Saturday 9/16 9:30am

About Us

Something For Everyone!

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. Foundation.  Helping Athlete’s Run & Train.  The 1/2 and Full Marathon will be certified courses.  









Health and Wellness Expo

Saturday, September 16th from 10am to 4pm

The Mighty Mo Health & Wellness Expo, located in the Sioux City Expo Center, will serve as packet pickup for all four races.

Along with receiving your race packet and Information, you will be able to experience some of the area’s best health & wellness companies.  Fitness equipment, area health clubs, shoe demo runs, as well as, many booths of nutritional support.

There has never been this many fitness related companies under one roof, EVER, in Sioux City.

Door prizes will be given away all day long.

NEW Course Maps

Full Marathon


Mighty Mo Marathon Course

Half Marathon


Mighty Mo Half Marathon Course

Siouxland Expo Center
Detailed Race Start and Finish

Mighty Mo Marathon Start Finish Map

Register to Race!

Reserve your spot today at the Mighty Mo Races!