Event details subject to change. Please confirm all information via event website.
RMRR Spring Marathon Training Series #2
These Marathon training races are geared towards people training for spring marathons. They are supported runs with aid stations and are timed and scored. There are both 10 mile and 20-mile distances for people who are training for either a half marathon or a full marathon. Come and join us for a fun, competitive training […]
Amasa Trail Race
Amasa Trail Race is a 25K, 15K, 10K through one of Moab's most prized trail systems. Run past petroglyphs, the famous whale rock, red rock, canyons, and the Colorado River, as you experience the desert in the spring time.
Dash for Detection 5K
Be part of a movement at Denver's City Park for our 5K event dedicated to raising awareness about oral cancer. Oral cancer can affect any area of the mouth and is influenced by risk factors such as tobacco and heavy alcohol use, as well as HPV infection. Symptoms to watch for include non-healing sores, lumps, […]
Rockin’ on the River 5K
Hudson Gardens and Event Center 6115 S Santa Fe Dr, Littleton, CO, United StatesDust off your well-loved t-shirts and show 'em off at the Rockin' on the River 5K! Pre and post-race music and entertainment for all. Take in the view along the beautiful South Platte River on the Mary Carter Greenway in Littleton.
CMRA Clear Creek 5K
This race will head west from Prospect Park on the Clear Creek trail on the north side of Clear Creek. There will be a turnaround and part way back there is a bridge crossing where runners will run on a dirt path on the south side of the creek. There will be another bridge crossing […]
ASDAsh 5K to Beat Tooth Decay
Join us for the University of Colorado School of Dental Medicine's 6th Annual ASDAsh 5K to Beat Tooth Decay! We are excited to share that our 5K course has been revamped this year to offer a fresh new route through campus. This year, we will be starting and ending at the LIBRARY COMMONS! Additionally, we're […]
Danico Brewing 5K
Danico Brewing Company 18490 East 66th Ave, Denver, CO, United StatesJoin us for the Danico Brewing 5k, and great, local craft beer at Danico in northeast Denver on April 11, 2026 Join us for the Danico Brewing 5k on April 11, 2026, for a 5k fun run event that starts and ends at this awesome taproom in northeast Denver. Run, walk, jog - whatever goes! […]
Platte River Half Marathon
Denver's oldest half marathon runs along the Platte River Trail, covering parts of Littleton and Denver.
Spring Fling Prairie Dog Half
Apex Center 13150 W 72nd Ave, Arvada, CO, United StatesWelcome to the SPRING FLING Prairie Dog Half, part of the Prairie Dog Half Race Series. This spring-time event also features 10k & 5k distances!
Elevate Kids 5K/10K
Our mission is to help elevate kids' lives by using unique fundraising efforts to raise awareness for and donate the funds to non-profits that help kids. We do what we do with Elevate Kids because we have a big warm spot in our hearts for Kids Aid. They provide a service to help kids in […]
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