Summer Splash Prairie Dog Half, 10k, & 5k
About this race
Welcome to the Summer Splash Prairie Dog Half, 10k & 5k in Castle Rock, Colorado. Part of the Prairie Dog Half race series, join us in July as we race through Castle Rock along the East Plum Creek Trail.
For all race info, click the "race info" tap (or the links at the bottom)!
Pick your distance
Running
Half Marathon
10k
5k
Typical race-day weather
Based on 13 years of Open-Meteo archive data for this event's race dates in Castle Rock, plus the 3 days either side.
The sun rises at 5:46 AM and sets at 8:24 PM local time (MDT) in Castle Rock on July 17, 2027 — 14h 37m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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Results — Summer Splash Prairie Dog Half, 10k, & 5k
Other races near Castle Rock
Different organizers, within 40 miles, in the next three months
Friday The 13K - Castle Rock Meet UP
Indian Creek Trail Runs
HRCA Backcountry Wilderness Half Marathon
Parker Parks and Recreation Turkey Day 5K FUN Run/Walk
🏃 Plan Your Next Race in Castle Rock
Find upcoming events by distance:
- Castle Rock 5K Races 2 races
- Castle Rock Half Marathons 2 races
- Castle Rock Running Calendar 2026 4 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 4 Castle Rock events
Spotted something wrong? Tell us and we'll fix it.