I-35 Challenge

The I-35 Challenge features an endurance event partnership between the Kansas City Marathon presented by Garmin on Saturday, October 17, followed the next day, by the IMT Des Moines Marathon on Sunday, October 18, 2020.

The Challenge

Athletes can participate in any combination of marathon and half marathon races to compete in the I-35 Challenge. Want to run the Marathon in Kansas City, and the Half Marathon in Des Moines? You can. Want to run the Half Marathon in Kansas City, and the Marathon in Des Moines? You can. Want to run the Half Marathon in Kansas City, and the Half Marathon in Des Moines? You got it, you can. Want to run the Marathon in Kansas City, and the Marathon in Des Moines? You can do that too. The I-35 Challenge is open to all of these options.

Two cities. Two races. One great weekend. Take the I-35 Challenge!

Register I-35 Challenge race registration will open in the spring of 2019. The number of athletes accepted into the I-35 Challenge has been expanded this year to 600 athletes. It is anticipated that the I-35 Challenge will sell out this year so if you plan to participate don’t wait until the last minute to register.

Register for your race of choice in Des Moines (Marathon or Half Marathon) and your race of choice in Kansas City (Marathon or Half Marathon) the following weekend separately as you normally would for each race. You will also then register separately for the I-35 Challenge through the unique I-35 Challenge race registration site. Registration opening in spring 2020.

Packet Pick-Up Attend packet pick-up at each race expo to pick-up your race materials as you normally would. The I-35 Challenge booth in Kansas City is where you will check in to pick-up your I-35 Challenge gear. You will receive your I-35 Challenge finisher medal after crossing the finish line on Sunday in Des Moines.

The Races

Kansas City Marathon presented by Garmin
• Saturday, October 17 at 7:00 am.
• Race Day schedule.

IMT Des Moines Marathon
• Sunday, October 18 at 8:00 am.
• Race Day schedule.

Amenities For completing the I-35 Challenge, participants will receive the following:
• Kansas City Marathon presented by Garmin participant shirt, race number/bib and finisher medal.
• IMT Des Moines Marathon race number/bib, track jacket and finisher medal.
• I-35 Challenge finisher medal.

The Expos
  • Kansas City Marathon presented by Garmin
    • Location: Crown Center (Exhibit Hall A). 2323 McGee Street, Kansas City, MO 64108.
    • Connected to The Sheraton at the North end of Crown Center.
    • Thursday, October 15, 3:00 to 8:00 pm.
    • Friday, October 16, 11:00 am to 8:00 pm.
    • Click here for more information about the expo.
  • IMT Des Moines Marathon Scheels Sports & Fitness Expo
    • Location: Iowa Events Center (Exhibit Hall C). 730 3rd Street, Des Moines, IA 50309.
    • Friday, October 16, 3:00 to 8:00 pm.
    • Saturday, October 17, 10:00 am to 6:00 pm.
    • Click here for more information about the expo.
The Results

To view 2019 I-35 Challenge results, click here.
To view 2018 I-35 Challenge results, click here.
To view 2017 I-35 Challenge results, click here.
To view 2016 I-35 Challenge results, click here.
To view 2015 I-35 Challenge results, click here.
To view 2014 I-35 Challenge results, click here for the marathon or click here for the half marathon.

More Info

Click here for more information about the Kansas City Marathon presented by Garmin.
Click here for more information about the IMT Des Moines Marathon.
Click here for the I-35 Challenge Facebook Page.
Click here for the I-35 Challenge Training Guide.
Click here for the Jeff Galloway I-35 Challenge Training Guide.

If you have additional questions, please email [email protected] or [email protected].