Register For
MO' Cowbell Marathon/Half-Marathon/Half-Marathon Relay/5K

Saint Charles, MO 63301

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By selecting this box, you are indicating that you are the parent/guardian of the person you are about to register. Additionally, if the child is under the age of 13, you are consenting to the collection and use of the information about the child for the purpose of the registration as described in our privacy policy.

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Additional Information

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Used for age group calculations
Format: ###-###-####

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Choose Your Event(s) *

Boston Qualifier
Sunday October 3, 2021

$90.00 + $7.68 SignUp Fee

Sunday October 3, 2021

$70.00 + $6.33 SignUp Fee

2-Person Teams
Sunday October 3, 2021

$55.00 + $5.31 SignUp Fee

Each member of a team must register and pay their registration fee separately.  The 1st member of a team selects "Create new team", the 2nd member selects "Join existing team".

New! Saturday Event
Saturday October 2, 2021

$35.00 + $3.96 SignUp Fee

New! Saturday Youth Event
Saturday October 2, 2021

$20.00 + $2.95 SignUp Fee

Event Preview
2017/2018/2019 or 2021 Medal
Sunday October 3, 2021 - Sunday October 31, 2021

$35.00 + $3.96 SignUp Fee



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