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Summer Splash Prairie Dog Half, 10k, & 5k

Castle Rock, Colorado, United States

calendar_today 18 Jul, 2026

directions_run Running

sell $25.00 – $65.00

About the Event

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)!

Races Offered

Half Marathon

Jul 18, 2026

straighten

Distance — 13.1 Miles

terrain

Type — Running

timer

06:30

sell

$65.00

10k

Jul 18, 2026

straighten

Distance — 10K

terrain

Type — Running

timer

07:00

sell

$35.00

5k

Jul 18, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

07:00

sell

$25.00

Weather History

These values represent the 3-year monthly averages for July in Castle Rock.

thermostat Temperature

12.9° / 29.9°

wb_sunny Feels like

10.8° / 26.9°

light_mode Avg sunshine hours

13h 0m

water_drop Avg rainfall

1.8 mm

ac_unit Avg snowfall

—

air Avg wind speed

9.0 km/h (Light breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Hard and dry surface

sunny Max UV Index

Very High (8.0)

humidity_mid Humidity

47.6%

wb_twilight Sunrise

05:46

nightlight Sunset

20:23

About Castle Rock

Learn more about the host city, Castle Rock.

Castle Rock is a town of about 81,000 in the Denver Metropolitan Area of the western U.S. state of Colorado. The seat of Douglas County, the town lies 26 miles (42 km) south-southeast of Denver.