Dash & Dine 5K
Boulder Reservoir 5565 N 51st St, Boulder, CO, United StatesThe Dash & Dine 5k run, Boulder’s favorite spring tune-up run series is back for 4 races on Tuesday nights in April & May at the beautiful Boulder Reservoir in Boulder, CO. Run A great event for runners of all ages and abilities. This family-friendly 5k out-and-back course follows the roads and dams on the […]
Blue Moon Trail Series I
Pinon Valley Park 5585 Mule Deer Dr, Colorado Springs, CO, United StatesThe Blue Moon Trail Run is a fun and challenging local race provided by the City of Colorado Springs Parks, Recreation and Cultural Services Department. The 3-time run series is offered on the fourth Friday evenings of May (5K), June (5K and 8K), and July (5K and 10K). In addition to the race series, a Reverse Biathlon […]
Weld Your Mettle
Frank State Wildlife Trailhead 32560 Colorado Blvd, Windsor, CO, United StatesWelcome to the annual Weld Your Mettle Ultra: 50K, Heavy Marathon, Heavy Half Marathon, and 7k run, walk or ruck, brought to you by the run.Windsor Race Series. Held on the Poudre River Trail. Connecting Windsor to Greeley, this race will strengthen your resiliency when faced with adversity and challenges. All distances are "heavy", meaning […]
Colorado Run
Spring Canyon Park 3156 S Overland Trail, Fort Collins, CO, United StatesCelebrate Memorial Day weekend with the Colorado Run 5K/10K! Walk, Jog, Run, Race, or Ruck the Totally Tough 10k along Horsetooth Reservoir or enjoy the flat and fast 5k in Spring Canyon Park. Post-race party with live music and awards.
Valley Bottom Rio Trio
State Ave River Trail Access 6901 N River Rd, Alamosa, CO, United StatesAlamosa Parks and Recreation and Adams State Adventure Programs are partnering to bring the San Luis Valley the first annual “Valley Bottom Rio Trio”; an adventure-style triathlon race within the City of Alamosa on June 12th. This fully chip-timed race will feature an 8-mile trail bike ride, a 3-mile paddle on the Rio Grande, and a 5k run.
Narrow Gauge 10 Mile
Fort Lewis College 1000 Rim Dr, Durango, CO, United StatesSince 1978 the Narrow Gauge 10 Mile Run has been one of Durango’s oldest Memorial Day traditions. The 10-mile course showcases the Fort Lewis College rim, the Animas River Trail and great views of Durango! This is the longest continuously run road race in Colorado. In 2021, even with COVID, we had a temporary race […]
BolderBoulder 10K
Folsom Field 2400 Colorado Ave, Boulder, CO, United StatesWe’re not sure when or how it happened, but somewhere along the way our little run in Boulder, CO turned into an event of epic proportions. We like to think it’s part race, run, jog, walk, parade, celebration and tribute. We made it for everyone.
Angel Run 5K/10K
Red Leg Brewing Company 4630 Forge Rd, Suite B, Colorado Springs, CO, United StatesPlease join us on Memorial Day for the Annual Angel Run in support of the local, veteran-owned 501c3 non-profit organization, Angels of America's Fallen! Gather at Red Leg Brewing for the in-person 10k and 5k run/walk or participate virtually. All proceeds of the event will be donated to Angels of America's Fallen to help accomplish […]
Memorial Day 5K
Imperial Memorial Gardens Cemetery 5450 CO-78 West, Pueblo, CO, United StatesJoin us for our Memorial Day 5K Fun Run & Walk at Imperial Memorial Gardens Cemetery and Funeral Home, honoring our fallen heroes while supporting victims of domestic violence. Registration is absolutely free, and all we ask is that you bring a donation of clothing or other items to support victims of domestic violence. If […]
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 […]
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