Staunton Rocks! Marathon & Half @ Staunton State Park, Conifer, Colorado, United States on 28 August 2021

Welcome to the Staunton Rocks! Marathon & Half, an event put on by trail runners for trail runners.

Touring the renowned singletrack of Staunton State Park in Colorado’s Front Range Mountains southwest of Denver, the race will take you back in time as you glide by historic buildings and old milling operations. The flowing trails […]

Long View Marathon & Half @ Foote Lagoon Amphitheatre, Fort Collins, Colorado, United States on 03 October 2021

Showcasing a unique city-to-city trail connection, The Long View Marathon and Half Marathon runs from Fort Collins to Loveland. Together, Gnar Runners and Sweetheart City Racing bring a unique collaboration to Colorado’s running scene in this one-of-a-kind race event. As the only certified Marathon to successfully happen last year in Colorado midst COVID restrictions, you […]

Lory Summer Trail Series @ Lory State Park, Fort Collins, Colorado, United States on 10 August 2021

Join us this August for a fun series of shorter midweek trail races, each Tuesday evening from August 10-31. Our goal is to offer a fun, low-key series of races designed to give newer trail runners an opportunity to dip their toes into the trail racing waters, and to offer more experienced trail racers a […]

Black Squirrel Half Marathon @ Lory State Park, Fort Collins, Colorado, United States on 11 September 2021

The 9th running of the Black Squirrel Trail Half Marathon will take place on the wonderful trails of Lory State Park to the northwest of Fort Collins, CO.

The trail half marathon course offers a tour of the outer boundaries of Lory State Park, providing breathtaking views to the east of Horsetooth Reservoir, Fort Collins […]

Blue Sky Marathon @ Blue Sky Trailhead, Fort Collins, Colorado, United States on 16 October 2021

Welcome to the 14th running of the Blue Sky Marathon, Fort Collins’ original and only trail marathon.

Taking place on the trails between Horsetooth Mountain Park and the Devil’s Backbone Open Space, the course takes you on a north-south tour of the easternmost hogbacks of Northern Colorado’s mighty Front Range. With 3,500 feet of elevation […]

Never Summer 100k/60k @ State Forest State Park, Gould, Colorado, United States on 30 July 2021

The Never Summer 100km & 60km will take place almost entirely within the boundaries of State Forest State Park and run between the Never Summer Mountains on the northern border of Rocky Mountain National Park (RMNP) and the Medicine Bow Mountains to the north of Cameron Pass.

The first 20 miles of each race will […]

Quad Rock 50/25mi @ Lory State Park, Fort Collins, Colorado, United States on 08 May 2021

Welcome to the 10th running of the Quad Rock 50 and 25 mile trail races, an event put on by trail runners for trail runners.

Taking place on the trails and hills west of Fort Collins in Lory State Park and Horsetooth Mountain Park, the Quad Rock 25/50 will take you on a tour of […]

Resolution Run 5K @ Edora Pool Ice Center, Fort Collins, Colorado, United States on 31 December 2021

Run out the old year, and welcome the new! Now in its 38th year, the Resolution Run is a family-friendly, neighborhood streets 5K starting & finishing at the Edora Pool Ice Center. Kids, strollers, dogs & walkers welcome! Finish in under 20:22 to earn a special prize! The race is held after sunset – we’ll […]

Horsetooth Half Marathon @ New Belgium Brewery, Fort Collins, Colorado, United States on 14 November 2021

Welcome to the 48th running of the Horsetooth Half Marathon. Your race will take you on a scenic point-to-point journey from Hughes Stadium, the former home of the CSU Rams, to the finish line party at New Belgium Brewery. On the way you’ll tackle the challenging hills of Centennial Drive along the shorelines of the […]

Denver Superhero Heart Run @ Hudson Gardens & Event Center, LITTLETON, CO, United States on 12 September 2021

CALLING ALL SUPERHEROES! Get ready to walk, run & FLY at the Denver Superhero Heart Run! Join forces with Heart Heroes & Conquering CHD-Colorado for the 7th annual 5k/2k run aimed at raising awareness & funds for Congenital Heart Defects (CHD).

Just Peachy Run Races @ Palisade River Bend Park, Palisade, CO, United States on 15 August 2020

MAD Racing Colorado invites you to work up an appetite for the Palisade Peach Festival by running a fun cross-country style course right before the Palisade Peach Festival opens.

Rugged Maniac 5k Obstacle Race, Denver – August 2020 @ Thunder Valley Park, Morrison, Colorado, United States on 08 August 2020

50% FESTIVAL + 50% MUD RUN = 100% AWESOME!

Here’s how it works:

THE FESTIVAL

The 5,000-person party starts at 8:30 a.m. with a DJ on the main stage, booths giving away free stuff, all kinds of interactive games (dance-offs, stein-hoisting, pie-eating…), and tasty food and beer to keep you fueled all day. The best […]

Run Like the Wind 5K, Walk Like the Breeze 2K & Dog Jog @ The Old Gallery, Allenspark, CO, United States on 22 August 2020

Join us at 8,504 feet for a scenic 5K or a shorter 2K walk, beginning and ending in the heart of Allenspark, Colorado. The 5K race & 2K walk circles through downtown and along dirt roads amid pine forest, boasting awe inspiring views of high mountain peaks. Register your pup for the Dog Jog and […]

Denver Superhero Heart Run @ Hudson Gardens & Event Center, Littleton, CO, United States on 28 June 2020

CALLING ALL SUPERHEROES! Get ready to walk, run & FLY at the 6th Annual Denver Superhero Heart Run on Sunday, June 28, 2020! This 5k/2k event will raise funds and awareness for Congenital Heart Defects (CHD), the most common birth defect in the world. Registration includes superhero cape, finisher’s medal, run bag & much more!

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Blue Sky Marathon @ Blue Sky Trailhead, Fort Collins, Colorado, United States on 17 October 2020

“Welcome to the 11th running of the Blue Sky Marathon, Fort Collins’ original and only trail marathon.

Taking place on the trails between Horsetooth Mountain Park and the Devil’s Backbone Open Space, the course takes you on a north-south tour of the easternmost hogbacks of Northern Colorado’s mighty Front Range. With 3,500 feet of elevation […]

Black Squirrel Half Marathon @ Lory State Park, Fort Collins, Colorado, United States on 12 September 2020

“The Black Squirrel Trail Half Marathon will take place on the wonderful trails of Lory State Park to the northwest of Fort Collins, CO.

The trail half marathon course offers a tour of the outer boundaries of Lory State Park, providing breathtaking views to the east of Horsetooth Reservoir, Fort Collins and the Great Plains; […]

Long View Marathon & Half @ Foote Lagoon Amphitheatre, Loveland, Colorado, United States on 04 October 2020

Showcasing a unique city-to-city trail connection, The Long View Marathon and Half Marathon runs from Fort Collins to Loveland. Together, Gnar Runners and Sweetheart City Racing bring a unique collaboration to Colorado’s running scene in this one-of-a-kind race event.

Resolution Run 5K @ Edora Pool Ice Center, Fort Collins, Colorado, United States on 31 December 2020

“Run out the old year, and welcome the new! Now in its 36th year, the Resolution Run is a family-friendly, neighborhood streets 5K starting & finishing at the Edora Pool Ice Center. Kids, strollers, dogs & walkers welcome! Finish in under 20:21 to earn a special prize! The race is held after sunset – we’ll […]

Spartan Race Denver Super and Sprint 2020 @ Colorado Renaissance Festival, 650 Perry Park Avenue, Larkspur, Colorado, United States on 22 August 2020

Spartan Super: 10K | 25 Obstacles This true athletic test offers the ideal blend between distance and speed. Are you determined to push beyond excuses? You just might have the guts for a Spartan Super.

Spartan Sprint: 5K | 20 Obstacles 3 miles that will change your life. The Sprint is the perfect distance, whether […]

Never Summer 100k @ State Forest State Park, Walden, CO, United States on 25 July 2020

The Never Summer 100km will take place almost entirely within the boundaries of State Forest State Park and run between the Never Summer Mountains on the northern border of Rocky Mountain National Park (RMNP) and the Medicine Bow Mountains to the north of Cameron Pass. The first 20 miles of the race will offer a […]

Quad Rock 50/25m @ Lory State Park, Fort Collins, CO, United States on 09 May 2020

Welcome to the Quad Rock 25 & 50 mile trail race, an event put on by trail runners for trail runners. Taking place on the trails and hills west of Fort Collins in Lory State Park and Horsetooth Mountain Park, the Quad Rock 25/50 will take you on a tour of the Fort Collins skyline, […]

Resolution Run 5K @ Edora Pool Ice Center, Fort Collins, Colorado, United States on 31 December 2019

“Run out the old year, and welcome the new! One of Fort Collins’ oldest races, the Resolution Run, is back for its 35th year with new features and surprises. Get a head start on your New Years Resolution by enjoy a family-friendly, neighborhood streets 5K starting & finishing at Edora Pool Ice Center. Kids, strollers, […]

Horsetooth Half Marathon @ New Belgium Brewery, Fort Collins, CO, United States on 19 April 2020

Welcome to the 47th running of the Horsetooth Half Marathon. Your race will take you on a scenic point-to-point journey from Hughes Stadium, the former home of the CSU Rams, to the finish line party at New Belgium Brewery. On the way you’ll tackle the challenging hills of Centennial Drive along the shorelines of the […]

Lisa Nelson’s Mustang Stampede 5K Memorial Scholarship Run/Walk @ Ralston Valley High School, Arvada, CO, United States on 14 September 2019

Lisa Nelson’s Mustang Stampede 5K Memorial Scholarship Run/Walk in memory of Coach Lisa Nelson, a beloved faculty member of Ralston Valley High School. Lisa passed away from cervical cancer in March 2013.The purpose of this 5K Run/Walk is to unify the local community in commemoration of her life and raise funds for a college scholarship […]

2019 Allstate Hot Chocolate 15k/5k Denver @ Civic Center, Denver, CO, United States on 06 October 2019

Join the movement that’s taken over the racing world. Allstate Hot Chocolate 15k/5k is headed to Denver on October 6, 2019! Start and finish at Civic Center Park amongst Denver’s biggest chocolate aficionados. This year, train, race, and celebrate with us all the way to the finish line. We’re with you through the season.

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