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Marathons Found In Colorado in April
View all ↓Marathons in Colorado in April 2025
Find A Race is the US's favourite event listings site. Check out our list of April 2025 Marathons in Colorado below.
Race Calendar: Marathons Found In April
Slacker Half Marathon-Relay-4-Mile Races
Georgetown, Colorado
01 Jan 25 - 27 Jun 25
$38.10 - $80.50
Platte River Half-Marathon and Relay
Littleton, Colorado
13 Apr 25
$96.40 - $207.70
Always Hope Easter Run 5K/10K/13.1 DENVER/AURORA
Aurora, Colorado
19 Apr 25
$32.80 - $48.70
Earth Day: Run GREEN 5K/10K/13.1 DENVER/AURORA
Aurora, Colorado
19 Apr 25
$32.80 - $48.70
Showing 1-4 of 4 results