The I-35 Challenge is a partnership between the Garmin Kansas City Marathon and IMT Des Moines Marathon , offering the challenge of completing both races on concurrent weekends. Participants can do any of the following combinations of events to complete the I-35 Challenge: Marathon in Kansas City and Marathon in Des Moines Marathon in Kansas City and Half Marathon in Des Moines Half Marathon in Kansas City and Marathon in Des Moines Half Marathon in Kansas City and Half Marathon in Des Moines
I-35 Challenge - Kansas City Marathon & Des Moines Marathon: I-35 Challenge Participant Shirt
I-35 Challenge - Kansas City Marathon & Des Moines Half Marathon: I-35 Challenge Participant Shirt
I-35 Challenge - Kansas City Half Marathon & Des Moines Marathon: I-35 Challenge Participant Shirt
I-35 Challenge - Kansas City Half Marathon & Des Moines Half Marathon: I-35 Challenge Participant Shirt
I-35 Challenge ONLY (already signed up for KC and Des Moines): T-Shirt
| Distance | Price | Opens | Closes |
|---|---|---|---|
| I-35 Challenge - Kansas City Marathon & Des Moines Marathon | $245.00 | Jan 1 | Feb 25 |
| $155.00 | Feb 25 | Apr 22 | |
| $280.00 | Apr 22 | Jun 1 | |
| $290.00 | Jun 1 | Jul 31 | |
| $315.00 | Jul 31 | Sep 16 | |
| $325.00 | Sep 16 | Oct 11 |
Interested in this race?
| $355.00 | Oct 11 | Oct 15 |
| I-35 Challenge - Kansas City Marathon & Des Moines Half Marathon | $210.00 | Jan 1 | Feb 25 |
| $220.00 | Feb 25 | Apr 22 |
| $240.00 | Apr 22 | Jun 1 |
| $245.00 | Jun 1 | Jul 31 |
| $270.00 | Jul 31 | Sep 16 |
| $290.00 | Sep 16 | Oct 11 |
| $310.00 | Oct 11 | Oct 15 |
| I-35 Challenge - Kansas City Half Marathon & Des Moines Marathon | $225.00 | Jan 1 | Feb 25 |
| $235.00 | Feb 25 | Apr 22 |
| $260.00 | Apr 22 | Jun 1 |
| $270.00 | Jun 1 | Jul 31 |
| $295.00 | Jul 31 | Sep 16 |
| $305.00 | Sep 16 | Oct 11 |
| $335.00 | Oct 11 | Oct 15 |
| I-35 Challenge - Kansas City Half Marathon & Des Moines Half Marathon | $190.00 | Jan 1 | Feb 25 |
| $200.00 | Feb 25 | Apr 22 |
| $220.00 | Apr 22 | Jun 1 |
| $225.00 | Jun 1 | Jul 31 |
| $250.00 | Jul 31 | Sep 16 |
| $270.00 | Sep 16 | Oct 11 |
| $290.00 | Oct 11 | Oct 15 |
| I-35 Challenge ONLY (already signed up for KC and Des Moines) | $35.00 | Jan 1 | Oct 16 |