Summit Trail Running Series II
French Gulch French Gulch Rd, Breckenridge, CO, United StatesExplore the trails of Breckenridge this summer with the 23rd annual Summit Trail Running Series with each race followed by a post-race party! The Series consists of 5 trail races in and around Summit County, May-July. Each race features a short and long course, and all races are open to runners of all abilities ages […]
Boulder Stroke & Stride I
Boulder Reservoir 5565 N 51st St, Boulder, CO, United StatesThe Boulder Stroke & Stride enters its 23rd season in 2024, and offers Boulder area athletes a fun 1-lap 750 Meter Swim, or 2-Lap 1500 Meter swim in Boulder Reservoir, followed by a 5k run on the reservoir dam on 8 Thursday evenings (plus one Wednesday evening) throughout the summer. Many participants make their open-water […]
REVEL Rockies Marathon
Bandimere Speedway 3051 S Rooney Rd, Morrison, CO, United StatesThis incredibly fast and remarkably beautiful downhill road race takes runners from the forests and canyons of the Rocky Mountains to the foothills of Denver, Colorado. Featuring a perfectly smooth downhill slope and spectacular scenery, this race will be sure to help you set your PR and finally hit that Boston Qualifying time. This event […]
Latino Ultra Nature Adventure
Golden Gate Canyon State Park Crawford Gulch Rd, Black Hawk, CO, United StatesThe 2nd Annual Latino Ultra Nature Adventure (LUNA) is a culturally relevant and equity driven new kind of Ultra powering the physical and mental health that comes from the mix of athletics, awe inspiring nature, and forest bathing. LUNA promotes human-nature connections and self realization through running and hiking for communities historically excluded from exclusive outdoor sports. […]
Mountain Ridge Trail Race
Mountain Ridge Middle School 10590 Mountain Vista Ridge, Highlands Ranch, CO, United StatesThis 11th annual trail race serves as the Summer Series opener. It has quickly become a runner favorite among Endurance Race Series front range events. The rolling hills of this Highlands Ranch course will keep the Heart Rate pumping while offering some of the best views in the front range. EVENT SCHEDULE 6:00AM- REG OPENS […]
North Fork Trail Race
BPIA Community Hall 18050 S. Buffalo Creek Road, Buffalo Creek, CO, United StatesThe North Fork 50 Mile/50K is 100% trails, mainly single track and some double track, starting and finishing along lovely Buffalo Creek, in the mountains about 50 miles southwest of Denver. This is a pure ultra, a very special and unique race, deliberately kept small so each runner gets personal attention. There are no non-ultra […]
Colorado Triathlon
Boulder Reservoir 5565 N 51st St, Boulder, CO, United StatesWho's ready to kick off the 2022 season?! The Colorado Triathlon is where Colorado comes to race on Saturday June 4th, 2022! The Colorado Triathlon - sprint & olympic distances, duathlon & aquabike options . To make this the "can't miss" event of the season, we'll also have athlete hoodie sweat shirts, and the best […]
Step Up For Women And Recovery 5K
Fossil Creek Park Lemay Avenue, Fort Collins, CO, United StatesThis event brings together the community and supports scholarships for women who seek treatment for drug and alcohol addiction. People entering a program often have the commitment to complete treatment but insurance coverage ends before their planned discharge. These scholarships help to fill that gap. As a nonprofit with over 50-years of serving clients, our […]
PPRR Nielson Challenge
North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United StatesRace Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is calculated using an algorithm developed by Bob Royse, and it's geared to favor a beginning runner and the slower runners. Click here for an explanation of the […]
Centennial Airport Runway 5K
Wings Over The Rockies 13005 Wings Way, Englewood, CO, United StatesJoin us on Saturday, June 1, 2024, for the Centennial Airport Runway 5K in support of the Centennial Airport Foundation! Runners and walkers alike will have the chance to take in amazing views as they cover the course of a full-length Runway and Taxiway at the busiest General Aviation airport in the nation. WHEN: June […]
6 Dot Dash
Colorado Center for the Blind 2233 W Shepperd Ave, Littleton, CO, United StatesThe National Federation of the Blind of Colorado 6 Dot Dash presented by Comcast is an annual 5k event to raise awareness and funds for the National Federation of the Blind of Colorado/Colorado Center for the Blind. Your support helps provide Braille literacy and blindness skills training, scholarships for deserving blind students, summer camps for […]
Heart Walk
Sloan's Lake Park 1700 Utica Street, Denver, CO, United StatesWe're all tied to heart disease and stroke in some way, and we must change that. Join your friends, family and co-workers to be a relentless force for a world of longer, healthier lives. By registering for the Heart Walk today, you are taking the first step to save lives. Every walker who joins, every […]
Walk MS
Cheyenne Depot Plaza 1 Depot Plaza, Cheyenne, WY, United StatesWalk MS 2024 includes a powerful new experience where you’ll witness how your support changes the lives of people with MS and gets us closer to our ultimate goal: a cure. Whether you live with MS, love someone who does, or are a part of the wider community, you can proudly display your role in […]
Aiden’s Adventure 5K
Fountain Creek Regional Park 2010 Duckwood Road, Fountain, CO, United StatesLet's help Aiden give back to his community and honor him in such a loving way. Aiden's Adventure 5k is designed to remember Aiden, a sweet, caring, "never met a stranger" personality, forever 5-year-old that is so dearly missed by his friends and family. Aiden was lost in a tragic accident, but we keep his […]
Sanitas Brewing 5K
Sanitas Brewing Company 200 West Belleview Avenue #Unit 100, Englewood, CO, United StatesJoin us for the Sanitas Brewing 5k on June 1, 2024, for a 5k-ish, fun run event that starts and ends at this awesome taproom in Englewood. Run, walk, jog - whatever goes! Complete the course and celebrate with us and a FREE, local craft brew at the finish line. Start windows will be available […]
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