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)!
Join fellow runners on July 18, 2026 for the Summer Splash Prairie Dog Half, 10k, & 5k. It's a fantastic Half-Marathon, 10K, 5K featuring a flat and fast course in Castle Rock.
Pick your distance
Running
Half Marathon
10k
5k
Weather Overview
These values represent the 12-year monthly averages for July in Castle Rock.
About Castle Rock
Summer Splash Prairie Dog Half, 10k, & 5k takes place in Castle Rock, Colorado, United States. The local timezone is America/Denver.
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🏃 Plan Your Next Race in Castle Rock
Find upcoming events by distance:
- Castle Rock 5K Races Best Castle Rock routes for beginners and speed work.
- 10K Run Events in Castle Rock The most popular local distance in Colorado.
- Castle Rock Half Marathons Top-rated 21.1K courses in the Castle Rock area.
- Castle Rock Running Calendar 2026 See all upcoming race dates.
Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.
