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Marathons Found In Colorado in Spring
View all ↓Marathons in Colorado in Spring 2025
Find A Race is the US's favourite event listings site. Check out our list of Spring 2025 Marathons in Colorado below.
Race Calendar: Marathons Found In Spring
Slacker Half Marathon-Relay-4-Mile Races
Georgetown, Colorado
01 Jan 25 - 27 Jun 25
$38.10 - $112.30
Arbor Day Run Green 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
15 Mar 25
$32.80 - $52.94
St. Paddy's Day Lucky Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
15 Mar 25
$32.80 - $52.94
Fox Trot Race 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
29 Mar 25
$32.80 - $48.70
Run DENVER/AURORA "The Mile High City" 5K/10K/13.1 Race
Centennial, Colorado
29 Mar 25
$32.80 - $48.70
Platte River Half-Marathon and Relay
Littleton, Colorado
13 Apr 25
$107.00 - $228.90
Always Hope Easter Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
19 Apr 25
$32.80 - $48.70
Earth Day: Run GREEN 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
19 Apr 25
$32.80 - $48.70
Cinco De Mayo Run: Against All Odds DENVER/AURORA
Centennial, Colorado
03 May 25
$32.80 - $48.70
Sloth Runners Race 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
03 May 25
$32.80 - $48.70
Showing 1-10 of 10 results