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Adventure races Found In Colorado in September

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Adventure races in Colorado in September 2025

Find A Race is the US's favourite event listings site. Check out our list of September 2025 Adventure races in Colorado below.

Race Calendar: Adventure races Found In September

Flaming Foliage Relay - Idaho Springs to Buena Vista

Idaho Springs, Colorado
05 Sep 25 - 06 Sep 25
$612.10 - $1,686.84

Battle by the Brook

Deckers, Colorado
20 Sep 25
Free - $111.49
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