Chesterfield Shamrock 5k/10k & Leprechaun Fun Run
Updated
Saturday, March 13, 2027, first start 8:30 AM, in Chesterfield (Chesterfield First Community Athletic Complex). Distances: 1 mile, 5K, 10K. Entry from $15 to $25.
Course and race notes
The City of Chesterfield's Annual Shamrock Run will take place on March 13, 2027, at the Chesterfield First Community Athletic Complex.
The race will consist of a 5K or 10K race, as well as a Fun Run Race for kids! The 5k and 10K will begin at 8:30am and the Fun Run will begin at 10am.
In the organizer's words, from the race's own listing.
Race details
Date
Saturday, March 13
2027 · in 126 days
Start time
8:30 AM
Earliest wave
Location
Chesterfield First Community Athletic Complex
Chesterfield, MO 63005
Area: West County & Chesterfield, St. Louis
Course
Road or path
Paved course
Distances
1 mile5K10K
Price
$15 to $25
Plus the platform's processing fee
No price increase published
Registration
Closed online
Online signup closed Mar 13, 2027
Opened Nov 25, 2026
Race day in Chesterfield
Weather
56° / 34°F
Typical high and low for March 13, with a 34% chance of rain.
NOAA 1991–2020 climate normals, St Louis Sprt Of S L Airport, MO (0.9 mi away). Averages, not a forecast; a forecast appears here a week out.
Daylight
6:18 AM – 6:06 PM
Sunrise and sunset on Saturday.
Calculated for the race location.
Plan your trip
For the night before, Fri Mar 12
Where to stay
See all places to stay near Chesterfield, MO ↗
Prices checked November 4, 2026 and can change. Confirm on the booking site before you book. We may earn a commission at no cost to you.
Trip cost
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Total $0
Race entry starts at the lowest listed price, before the platform's fee.