I-35 Challenge

Two Races. Two Cities. Two States. One Epic Weekend.

The I-35 Challenge presented by the Half Fanatics & Marathon Maniacs is a partnership between the Garmin Kansas City Marathon and the IMT Des Moines Marathon. The goal of the I-35 Challenge is to complete races in both cities on the same weekend.

Garmin Kansas City Marathon & Half Marathon
It starts at 7 am on Saturday, October 15.

IMT Des Moines Marathon & Half Marathon
It begins at 8 am on Sunday, October 16.

Athletes can do any of the following combinations of events throughout the race weekend to complete the I-35 Challenge, such as:

The Marathon in Kansas City + the Marathon in Des Moines, or
the Marathon in Kansas City + the Half Marathon in Des Moines, or
the Half Marathon in Kansas City + the Marathon in Des Moines, or
the Half Marathon in Kansas City + the Half Marathon in Des Moines.

Amenities

In addition to the individual race participant items from both the Garmin Kansas City Marathon and the IMT Des Moines Marathon, all I-35 Challenge participants will receive an I-35 Challenge-branded commemorative item, I-35 Challenge recognition on the athlete race number/bib, I-35 Challenge finisher medal, and I-35 Challenge online race results.

Registration

Register for your race of choice in Kansas City AND your race of choice in Des Moines as you usually would. You will register separately for the I-35 Challenge through the unique I-35 Challenge race registration site listed below.

Garmin Kansas City Marathon registration, click here.

IMT Des Moines Marathon registration, click here.

I-35 Challenge registration, click here.

Packet Pick-Up

Attend packet pick-up at each city’s race expo to pick up your race materials as you normally would for each race. The I-35 Challenge booth in Kansas City is where you will check in to pick up your I-35 Challenge apparel item. You will receive your I-35 Challenge finisher medal after crossing the finish line in Des Moines.

Garmin Kansas City Marathon
Crown Center (Exhibit Hall A). 2323 McGee Street, Kansas City, MO, 64108.

Thursday, October 13, from 3 to 8 pm, and Friday, October 14, from 11 am to 8 pm.

IMT Des Moines Marathon
Iowa Events Center (Exhibit Hall C). 730 Third Street, Des Moines, IA, 50309.

Friday, October 14, from 3 to 8 pm., and Saturday, October 15, from 10 am to 6 pm.

*Extended Des Moines packet-pick hours and location for I-35 Challenge participants is TBA.

Results

2021 I-35 Challenge results, click here.

2019 I-35 Challenge results, click here.

2018 I-35 Challenge results, click here.

2017 I-35 Challenge results, click here.

2016 I-35 Challenge results, click here.

2015 I-35 Challenge results, click here.

2014 I-35 Challenge results, click here for the marathon or click here for the half marathon.

More Info

Garmin Kansas City Marathon. Click here.

IMT Des Moines Marathon. Click here.

I-35 Challenge Presented by the Half Fanatics & Marathon Maniacs Facebook Page. Click here.

Jeff Galloway I-35 Challenge Presented by the Half Fanatics & Marathon Maniacs Training Guide. Click here.

For additional questions, please email contact@sportkc.org.

Accolades

BibRave lists the IMT Des Moines Marathon and Garmin Kanas City Marathon as two of the Top 20 Marathons of the Decade in the United States. Read more.

RaceRaves lists the IMT Des Moines Marathon & Half Marathon as the best in Iowa and the best in the Midwest. Read more.

Cityview Magazine lists the IMT Des Moines Marathon as the Best Local Running Event in Des Moines. Read more.

More Information

To view the IMT Des Moines Marathon race division category fee structure, click here.

To register for any IMT Des Moines Marathon races, click here.

To confirm your IMT Des Moines Marathon registration, click here.

To receive an additional copy of your IMT Des Moines Marathon confirmation message via email, click here.

All registrants should read our terms and conditions and frequently asked questions.