May Ultras within 50 miles of Castle Rock, CO

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1
May 3, 2025
Saturday
Greenland Trail Races
50K, 25K, 8M, 4M trail run
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Larkspur, CO
10 miles point to point
Douglas County, CO
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2
May 10, 2025
Saturday
Valkyrie Trail Race
50K, 26.2M, 30K, 13.1M, 8M, 4M trail run
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Colorado Springs, CO
37 miles point to point
El Paso County, CO
details update save claim feature
3
May 17, 2025
Saturday
Endure Trail Runs
24H, 12H, 13.1M, 10K trail run
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Divide, CO
34 miles point to point
Teller County, CO
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4
Past Date
May 18, 2024
Saturday
Ram Party
54M, 50K trail run
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Colorado Springs, CO
37 miles point to point
El Paso County, CO
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5
May 24, 2025
Saturday
The Ol' College Try 24 Hour Ultra
24H, 12H, 6H run
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Denver, CO
26 miles point to point
Denver County, CO
details update save claim feature

For the love of all that Is good And moisture wicking...

Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.

ALWAYS visit the race's website for the most complete and accurate race information.