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Marathons Found In Colorado in August
View all ↓Marathons in Colorado in August 2025
Find A Race is the US's favourite event listings site. Check out our list of August 2025 Marathons in Colorado below.
Race Calendar: Marathons Found In August
🚀Boosted
Labor Day Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
30 Aug 25
$32.80 - $48.70
🚀Boosted
Platte River Half-Marathon and Relay
Littleton, Colorado
13 Apr 25 - 12 Apr 26
$80.50 - $268.75
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Fleet Feet Denver Fall Half-Marathon Twelve-Week Training Program
Littleton, Colorado
08 Jul 25 - 28 Sep 25
$155.00
Singles & Friends Running Club 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
02 Aug 25
$32.80 - $48.70
Run for Wine & Cheese 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
02 Aug 25
$32.80 - $48.70
Labor Day Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
30 Aug 25
$32.80 - $48.70
Sunrise Marathon 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
30 Aug 25
$32.80 - $48.70
Platte River Half-Marathon and Relay
Littleton, Colorado
13 Apr 25 - 12 Apr 26
$80.50 - $268.75
Showing 1-6 of 6 results