I-35 Challenge
I-35 Challenge is a running race on October 17–18, 2026 in Kansas City, MO, with entry fees from $35 to $290.
- Date
- October 17–18, 2026 (86 days to go)
- Location
- Kansas City, MO & Des Moines, IA
- Price
- $35–$290
- Sport
- Running
From the Organizer
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
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
68°
Typical Low
48°
Chance of Rain
22%
Based on US Climate Normals data from Kansas City Downtown Ap, 3 mi from the venue.
Host City
About Kansas City, MO
Population
508,233
as of 2023
City Elevation
754 ft
Nearest Airport
MCI
Kansas City International Airport · 15 mi
Time Zone
Central Time
From Endurance Grid
A big city race. Expect multiple lodging options and plenty to do the day before.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at I-35 Challenge, put it on the calendar, and turn “someday” into a start date.
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From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
More Running races near Kansas City, MO
Military Matters VeteRUN 5K Run/Walk
5K · From $10 · The National WWI Museum and Memorial
Less than a mile away
Run for PB& J 5K/10K/13.1 KANSAS CITY
1 Mile · 5K · 10K · Half Marathon · From $30 · Mill Creek Park (Course Map will be emailed)
2 miles away
Gourdy's Pumpkin Run: Kansas City
5K · From $44 · 1000 Locust St.
1 mile away
Armourdale 5K Run and Walk
5K · From $30 · 1799 American Royal Drive
1 mile away
Plan your trip
Make it a Racecation
Coming from out of town? There's more to Kansas City than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to Kansas CityFrequently Asked Questions (FAQs)
What is the I-35 Challenge?+
When and where is the I-35 Challenge?+
How do I register for the I-35 Challenge?+
I-35 Challenge
Oct 17, 2026