I-35 CHALLENGE

Two Races. Two Cities. Two States. Two Epic Weekends.

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 throughout two weekends.

Due to the calendar, the I-35 Challenge is offered on consecutive weekends in 2023. Join us on October 19 & 20, 2024, for back-to-back dates on the same weekend.

In 2023, the IMT Des Moines Marathon is the third Sunday, October 15, and the Kansas City Marathon is the third Saturday, October 21. As a result, the I-35 Challenge is offered on consecutive weekends this year.

Register for your race of choice in Des Moines (Marathon or Half Marathon) and your race choice in Kansas City (Marathon or Half Marathon) as you usually would. Then, register for the I-35 Challenge Presented by the Half Fanatics & Marathon Maniacs through the unique I-35 Challenge race registration site. Sign up.

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

IMT Des Moines Marathon & Half Marathon
It starts at 8 am on Sunday, October 15.

Garmin Kansas City Marathon & Half Marathon
It starts at 7 am on Saturday, October 21.

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

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

You can 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 Des Moines is where you will check in to pick up your I-35 Challenge apparel item. After crossing the finish line in Kansas City, you will receive your I-35 Challenge finisher medal.

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

Friday, October 13, from 3 to 8 pm., and Saturday, October 14, from 10 am to 6 pm.

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

Thursday, October 19, from 3 to 8 pm, and Friday, October 20, from 11 am to 8 pm.

Results

2022 I-35 Challenge results, click here.

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.

If you have any more 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 confirm your IMT Des Moines Marathon registration, click here.

Click here to receive an additional copy of your IMT Des Moines Marathon confirmation message via email.

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