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I-35 Challenge

Sat October 18 - Sun October 19, 2025 Kansas City, MO 64108 US

I-35 Challenge - Kansas City Marathon & Des Moines Marathon

Garmin Kansas City Marathon - Marathon Registration
IMT Des Moines Marathon - Marathon Registration

Event Dates:: Saturday October 18, 2025 - Sunday October 19, 2025
Start Time:: 7:00am CDT
End Time:: 8:00am CDT

Registration:: Registration Opens January 16, 2025 at 12:00am CST
Price:: $249.00 Race Fee + $15.94 SignUp Fee
Registration:: Price increases to $274.00 after April 15, 2025 at 11:59pm CDT

Registration Starting	Registration Ending	Price
January 16, 2025, 12:00am CST	April 15, 2025, 11:59pm CDT	$249.00 Race Fee + $15.94 SignUp Fee
April 16, 2025, 12:00am CDT	July 14, 2025, 11:59pm CDT	$274.00 Race Fee + $14.70 SignUp Fee
July 15, 2025, 12:00am CDT	September 15, 2025, 11:59pm CDT	$304.00 Race Fee + $16.20 SignUp Fee
September 16, 2025, 12:00am CDT	October 12, 2025, 11:59pm CDT	$325.00 Race Fee + $17.25 SignUp Fee

I-35 Challenge - Kansas City Marathon & Des Moines Half Marathon

Garmin Kansas City Marathon - Marathon Registration
IMT Des Moines Marathon - Half Marathon Registration

Event Dates:: Saturday October 18, 2025 - Sunday October 19, 2025
Start Time:: 7:00am CDT
End Time:: 8:00am CDT

Registration:: Registration Opens January 16, 2025 at 12:00am CST
Price:: $224.00 Race Fee + $14.44 SignUp Fee
Registration:: Price increases to $249.00 after April 15, 2025 at 11:59pm CDT

Registration Starting	Registration Ending	Price
January 16, 2025, 12:00am CST	April 15, 2025, 11:59pm CDT	$224.00 Race Fee + $14.44 SignUp Fee
April 16, 2025, 12:00am CDT	July 14, 2025, 11:59pm CDT	$249.00 Race Fee + $15.94 SignUp Fee
July 15, 2025, 12:00am CDT	September 15, 2025, 11:59pm CDT	$274.00 Race Fee + $14.70 SignUp Fee
September 16, 2025, 12:00am CDT	October 12, 2025, 11:59pm CDT	$294.00 Race Fee + $15.70 SignUp Fee

I-35 Challenge - Kansas City Half Marathon & Des Moines Marathon

Garmin Kansas City Marathon - Half Marathon Registration
IMT Des Moines Marathon - Marathon Registration

Event Dates:: Saturday October 18, 2025 - Sunday October 19, 2025
Start Time:: 7:00am CDT
End Time:: 8:00am CDT

Registration:: Registration Opens January 16, 2025 at 12:00am CST
Price:: $229.00 Race Fee + $14.74 SignUp Fee
Registration:: Price increases to $254.00 after April 15, 2025 at 11:59pm CDT

Registration Starting	Registration Ending	Price
January 16, 2025, 12:00am CST	April 15, 2025, 11:59pm CDT	$229.00 Race Fee + $14.74 SignUp Fee
April 16, 2025, 12:00am CDT	July 14, 2025, 11:59pm CDT	$254.00 Race Fee + $13.70 SignUp Fee
July 15, 2025, 12:00am CDT	September 15, 2025, 11:59pm CDT	$284.00 Race Fee + $15.20 SignUp Fee
September 16, 2025, 12:00am CDT	October 12, 2025, 11:59pm CDT	$305.00 Race Fee + $16.25 SignUp Fee

I-35 Challenge - Kansas City Half Marathon & Des Moines Half Marathon

Garmin Kansas City Marathon - Half Marathon Registration
IMT Des Moines Marathon - Half Marathon Registration

Event Dates:: Saturday October 18, 2025 - Sunday October 19, 2025
Start Time:: 7:00am CDT
End Time:: 8:00am CDT

Registration:: Registration Opens January 16, 2025 at 12:00am CST
Price:: $204.00 Race Fee + $13.24 SignUp Fee
Registration:: Price increases to $229.00 after April 15, 2025 at 11:59pm CDT

Registration Starting	Registration Ending	Price
January 16, 2025, 12:00am CST	April 15, 2025, 11:59pm CDT	$204.00 Race Fee + $13.24 SignUp Fee
April 16, 2025, 12:00am CDT	July 14, 2025, 11:59pm CDT	$229.00 Race Fee + $14.74 SignUp Fee
July 15, 2025, 12:00am CDT	September 15, 2025, 11:59pm CDT	$254.00 Race Fee + $13.70 SignUp Fee
September 16, 2025, 12:00am CDT	October 12, 2025, 11:59pm CDT	$274.00 Race Fee + $14.70 SignUp Fee

I-35 Challenge ONLY (already signed up for KC and Des Moines)

Event Dates:: Saturday October 18, 2025 - Sunday October 19, 2025
Start Time:: 7:00am CDT
End Time:: 8:00am CDT

Registration:: Registration Opens January 16, 2025 at 12:00am CST
Price:: $35.00 Race Fee + $3.10 SignUp Fee
Registration:: Registration ends October 17, 2025 at 8:00pm CDT

Registration Starting	Registration Ending	Price
January 16, 2025, 12:00am CST	October 17, 2025, 8:00pm CDT	$35.00 Race Fee + $3.10 SignUp Fee

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