3 running events in Sioux City, Iowa

From big races to Saturday morning group runs—find running events and connect with the local endurance sports community.

• ARG Foundation 5K [argfoundation.org] [Register at runsignup.com]
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  Sat, Apr 18, 2026 at 12:00 AM

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  The Ann Rehan Goebel Foundation was established to honor the life of Ann Rehan Goebel, MD, a Sioux City pediatrician who passed away from a brave battle with cancer on February 20, 2023.

  Ann loved...

  The Ann Rehan Goebel Foundation was established to honor the life of Ann Rehan Goebel, MD, a Sioux City pediatrician who passed away from a brave battle with cancer on February 20, 2023.

  Ann loved being a doctor and helping people – and she did it with her own brand of care and personality. She wove a deeply human element into her medical practice, creating unforgettable connections with her patients and colleagues.

  When Ann passed away from cancer in 2023, her family and friends felt like her life’s work wasn’t done yet. That’s how the Ann Rehan Goebel Foundation was formed. Our annual Science, Technology, Engineering and Mathematics (STEM) scholarship is inspired by Ann’s passion for the field and sharing her gifts with others. By helping students realize these similar aspirations, we will keep Ann’s spirit alive.

  This 5K helps support the ARG Foundation mission locally.

  5k Run

  1280 Larsen Park Rd, Sioux City, Iowa, 51103, United States
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• Mighty Mo Run [mightymorun.com] [Register at runsignup.com]
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  Fri, Sep 11, 2026 at 6:30 PM

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  Mighty Mo Marathon – Sioux City’s Premier Running Event

  The Mighty Mo Marathon is back with an all‑new, flat, runner‑friendly three‑state course—and for the first time ever, prize money is on the...

  Mighty Mo Marathon – Sioux City’s Premier Running Event

  The Mighty Mo Marathon is back with an all‑new, flat, runner‑friendly three‑state course—and for the first time ever, prize money is on the line. Sioux City’s signature running event features something for every athlete: Kids Run • 5K • 10K • Half Marathon • Full Marathon • The “STOOGE” Challenge All events offer flat, fast, and fun routes.

  Starting and finishing inside the Siouxland Expo Center, runners will enjoy scenic miles along the Missouri River Trail, complete with shade, smooth surfaces, and plenty of space to fly.

  Proceeds support the H.A.R.T. Program (Helping Athletes Run & Train), empowering athletes of all ages and abilities.

  Course Highlights

  Half Marathon: Returns to its popular flat and fast out‑and‑back design.

  Full Marathon: Newly redesigned course with beautiful river views, abundant shade, and an indoor start/finish experienc

  5k 10k 13.1 Miles 26.2 Miles Indoor Run Trail

  Sioux City, Iowa, 51101, United States
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Local Clubs & Organizations