0002
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
🚀Boosted
Slacker Half Marathon-Relay-4-Mile Races
Georgetown, Colorado
01 Jan 25 - 28 Jun 25
$38.10 - $128.20
🚀Boosted
Platte River Half-Marathon and Relay
Littleton, Colorado
13 Apr 25 - 12 Apr 26
$80.50 - $268.75
Feature your event at the top of the results
Slacker Half Marathon-Relay-4-Mile Races
Georgetown, Colorado
01 Jan 25 - 28 Jun 25
$38.10 - $128.20
Platte River Half-Marathon and Relay
Littleton, Colorado
13 Apr 25 - 12 Apr 26
$80.50 - $268.75
Showing 1-2 of 2 results