Course
Marathon42.2 km
Half Marathon21.1 km
10K10 km
5K5 km
Key dates
- !RegistrationOpen now
- ★Race daySun 8 Nov 2026
Date confirmed with the organiser · entry window checked by RunCalendar
About
MO' Cowbell is a community non-profit organization with the goal to promote a healthy lifestyle in St. Charles County, by creating a fun event for the whole family. The race course highlights the area with a trip through the heart of New Town just past halfway before heading back toward the finish in Frontier Park between Historic Main Street and the Missouri River.
Your next race, seen from above.
Save MO' Cowbell Marathon, Half Marathon, 10K, 5K to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Save MO' Cowbell Marathon, Half Marathon, 10K, 5K to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.