Mighty Mo Run

The Mighty Mo Run is Sioux City, Iowa’s premier running event, offering a variety of race distances including a Kid’s Fun Run, 5K, 10K, Half Marathon, and a unique “Stooge” challenge for participants running all three days. The courses are known for being flat, fast, and fun, starting and finishing at the Seaboard Triumph Foods Expo Center and running along the scenic Missouri River Trail. The event fosters a welcoming atmosphere suitable for all ages and abilities.

Proceeds support the H.A.R.T. Foundation, which aids athletes in training and running. The full marathon will return in 2026 after course reconstruction. Visit the organization's website for the most recent information.