In 258 days · Sat, Jul 17, 2027
Don't let race day sneak up
One email during race week. That's it.
When
Saturday, July 17th, 2027
Where
5254 N Meadows Dr, Castle Rock CO
Distances
Half · 10K · 5K
Typical weather
58–87°F · low rain risk
See last 10 years
On this date: rain 1 of the last 11 years
2026
60–88°F
dry
2025
57–82°F
dry
2024
55–83°F
rain
2023
52–93°F
dry
2022
58–93°F
dry
2021
57–87°F
dry
2020
63–88°F
dry
2019
66–89°F
dry
2018
58–83°F
dry
2017
58–86°F
dry
2016
59–86°F
dry
Best months to race in Colorado →
Course map
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