8 running, cycling, and mountain biking events in Sioux City, Iowa

Relay Iowa is the World's Longest Relay Run! Teams of up to 12 participants run 339 miles to cross Iowa over a long weekend. You build your own team and then work together to break down the distance into segments of your choosing. You control the order and distance of runners and can change your plan at any time. Any level runner can participate as long as your overall team pace is 10.5 minutes/mile or less, allowing your team to finish in the allotted time.

One runner at a time from each team will advance day and night beginning in Sioux City on Friday and ending in Dubuque on Sunday. It is a relay, not a race, encouraging teamwork, camaraderie and fun while testing your determination. Contact us at [email protected] if you have any questions or need help getting started.

Our non-profit relay raises money for Restoring Hope International, an orphanage in South Africa, as well as various charities in towns along the route and throughout Iowa. While fundraising is not required, we challenge teams to raise at least $339 to enter our Club 339 fundraising competition. Accept the challenge and ask your family and friends to support your epic 339 mile run across Iowa!

Relay Iowa has become a metaphor for a life well lived. It is not a race to the finish, but an extended relay of individuals journeying closely together, sustaining each other as they stretch the limits of their physical endurance, test their mental toughness and draw upon their emotional well in a place beyond their comfort zones, for the sole purpose of improving the life of another human being.

Join us on this adventure!

Event details and schedule

• This is a team event. First your captain registers, creates the team and sets a password. Next, all other team members register using the password. Boom! You just joined the adventure!

• All teams begin the relay on Friday, June 7, 2024. Exact time for each team's departure to be determined a few weeks prior to event and is based on overall team pace. Overall team pace should be no more than about 10.5 minutes per mile in order to finish in the allotted time.

• It is important to provide an accurate per mile pace during the registration process. Pace should not be your personal best, but a comfortable per mile pace over a long distance in demanding conditions. We will check in with each team captain before the event to verify team pace and set team start time.

• The course is challenging. Runners should expect to encounter loose gravel, vehicles of all sizes, all types of weather and running in darkness. You will share the road with vehicles throughout the event. Please prepare mentally and physically for this strenuous yet rewarding experience.

• Teams can divide the mileage in any way that works for the runners. You can change the plan during the event.

• There are many ways to stay informed. Your team captain should be a great resource for planning and preparation tips. Relay Iowa will send emails and post updates on social media leading up to the event. We also have a website with tips and tricks to prepare for the event. www.relayia.org. Keep in touch!

Relay Iowa is the World's Longest Relay Run! Teams of up to 12 participants run 339 miles to cross Iowa over a long weekend. You build your own team and then work together to break down the distance into segments of your choosing. You control the order and distance of runners and can change your plan at any time. Any level runner can participate as long as your overall team pace is 10.5 minutes/mile or less, allowing your team to finish in the allotted time.

One runner at a time from each team will advance day and night beginning in Sioux City on Friday and ending in Dubuque on Sunday. It is a relay, not a race, encouraging teamwork, camaraderie and fun while testing your determination. Contact us at [email protected] if you have any questions or need help getting started.

Our non-profit relay raises money for Restoring Hope International, an orphanage in South Africa, as well as various charities in towns along the route and throughout Iowa. While fundraising is not required, we challenge teams to raise at least $339 to enter our Club 339 fundraising competition. Accept the challenge and ask your family and friends to support your epic 339 mile run across Iowa!

Relay Iowa has become a metaphor for a life well lived. It is not a race to the finish, but an extended relay of individuals journeying closely together, sustaining each other as they stretch the limits of their physical endurance, test their mental toughness and draw upon their emotional well in a place beyond their comfort zones, for the sole purpose of improving the life of another human being.

Join us on this adventure!

Event details and schedule

• This is a team event. First your captain registers, creates the team and sets a password. Next, all other team members register using the password. Boom! You just joined the adventure!

• All teams begin the Relay on Friday of the event weekend. Exact time for each team's departure to be determined a few weeks prior to event and is based on overall team pace. Overall team pace should be no more than about 10.5 minutes per mile in order to finish in the allotted time.

• It is important to provide an accurate per mile pace during the registration process. Pace should not be your personal best, but a comfortable per mile pace over a long distance in demanding conditions. We will check in with each team captain before the event to verify team pace and set team start time.

• The course is challenging. Runners should expect to encounter loose gravel, vehicles of all sizes, all types of weather and running in darkness. You will share the road with vehicles throughout the event. Please prepare mentally and physically for this strenuous yet rewarding experience.

• Teams can divide the mileage in any way that works for the runners. You can change the plan during the event.

• There are many ways to stay informed. Your team captain should be a great resource for planning and preparation tips. Relay Iowa will send emails and post updates on social media leading up to the event. We also have a website with tips and tricks to prepare for the event. www.relayia.org. Keep in touch!

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