Spartan Race Colorado Rockies Ultra, Beast and Sprint 2019 @ Aspen Snowmass, Snowmass Village, CO, United States on 03 August 2019

Spartan Ultra: 30 mi / 50 km, 60 Obstacles The Spartan Ultra delivers unique course elements and obstacles, in some of the world’s most challenging locations. It is the ultimate test of strength and perseverance. If you can complete this, you can do anything.

Spartan Beast: 13 mi / 21 km, 30 Obstacles Think you […]

Spartan Race Fort Carson – Colorado Springs Super and Sprint 2019 @ Fort Carson Army Base, Fort Carson, Colorado, United States on 13 July 2019

Spartan Super: 8 mi / 13 km, 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: 3 mi / 5 km, 20 Obstacles 3 miles that will change your life. The […]

2nd Annual Just Peachy Run Races (5k, 10k, and 1k Kids) @ Palisade Riverbend Park, Palisade, CO, United States on 17 August 2019

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. There will be a water station half way through this 5k course. The 10k will complete the 5k loop twice. All courses consist 40% paved sidewalk […]

Rabbit Valley Half Marathon Mack, United States 2019 @ Rabbit Valley camping area, Mack, CO, United States on 11 May 2019

Take this amazing opportunity to challenge yourself to run the 13,1 miles on short steep climbs, rock gardens and sand straps Rabbit valley half marathon is taking place the 11th of may 2019 and is located at Rabbit Valley in Mack, United States. With a low chance of rain, the Rabbit Valley is known for […]

Long View Marathon & Half Marathon @ City Park, Fort Collins, Colorado, United States on 05 October 2019

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.

Fall Equinox Half Marathon & 5 Mile @ Poudre Canyon, Fort Collins, CO, United States on 22 September 2019

Fast & beautiful, a great point-to-point downhill half marathon for a new PR! Starting at the famed Mishawaka & run entirely in the Poudre River Canyon. Enjoy the beauty & downhill course along Colorado’s only wild & scenic river.

Spring Equinox Half Marathon & 4 MIle @ The Biergarten at Anheuser Busch, Fort Collins, CO, United States on 24 March 2019

Scenic country roads make for a great spring half marathon! Course is an out & back with a mix of paved & dirt roads rolling Northwest of the brewery. Celebrate the 1st day of Spring with an early season race!

Resolution Run 5K @ Edora Pool Ice Center, Fort Collins, CO, United States on 31 December 2018

Run out the old year, and welcome the new! One of Fort Collins’ oldest races, the Resolution Run, is back for its 34th year with a new host and new course.

Get a head start on your New Years Resolution by enjoy a family-friendly, neighborhood streets 5K starting & finishing at Edora Pool Ice Center […]

Resolution 5K @ Washington Park, Denver, Colorado, United States on 31 December 2018

Join your friends this New Year’s Eve at Washington Park for the​ 34th annual Resolution 5K. Registration is now open on www.active.com Noon start this year, perfect for getting ready for anything planned in the evening. The family-friendly Resolution 5K is proud to support Volunteers of America–Colorado Chapter. Same-day registration is at South High School […]

Mountain RATS @ Color Coffee Roasters, Eagle, Colorado, United States on 07 September 2019

Come celebrate fall in the mountains with a trail running challenge! An exciting day of festival fun and adventure on the trails near Eagle, Colorado. With the start/finish line right in the heart of Eagle’s new fall festival, Septemberfest, friends and family can enjoy themselves while you push yourself in the rugged mountain race. Afterwards, […]

Rabbit Valley Half Marathon @ Rabbit Valley Trailhead, Fruita, Colorado, United States on 11 May 2019

The Rabbit Valley Half Marathon is a fun, rugged, desert run as an out and back mostly on the Kokopelli Trail. Runners will enjoy 13.1 miles of gorgeous early season desert with short steep climbs, rock gardens and sand traps.

Trail Running Festival @ Hawkeye Trailhead, Fruita, Colorado, United States on 13 April 2019

Join us for a weekend of fun and running on the beautiful trails near Fruita, Colorado. The weekend kicks off on Friday night with packet pickup and a dinner. Saturday is the trail marathon and 50K, followed that night with a racer party at a local brewery. Sunday’s events include a 10K, half marathon and […]

Salty Cross Day 2 @ Little Salt Wash Park, Fruita, CO, United States on 25 November 2018

Salty Cross Day 2 – Sunday, Nov. 25, 2018 – Little Salt Wash Park, Fruita, CO Warm up with the 5k Cross Country Running Race if you choose then, jump on to your bike for the cyclocross races. We’ll mix it up by changing the course slightly. Come play in Western Colorado on a long […]

Salty Cross Day 1 @ Little Salt Wash Park, Fruita, CO, United States on 24 November 2018

Salty Cross Day 1 – Saturday, Nov. 24, 2018 – Little Salt Wash Park, Fruita, CO Local favorite at Little Salt Wash Park with new course layouts every year… nearby playground for family fun. This event promises great racing fun in the whoops, grass, and trees! The 5k Cross Country Running Race will kick of […]

Talbott’s Orchard Crit Cross – Saturday, Oct. 6, 2018 & Talbott’s Orchard Cross – Sunday, Oct. 7, 2018 @ Talbott Farms, Palisade, CO, United States on 06 October 2018

Talbott’s Orchard Crit Cross – Saturday, Oct. 6, 2018 – Talbott Farms – 3782 F 1/4 Rd, Palisade, CO Come test out a new concept; Crit on the dirt roads / double tracks around the orchard trees. Think crit on dirt! Plenty of opportunities to draft and PUSH THE EDGE! Race day registration opens at […]

Lisa Nelson’s Mustang Stampede 5K Memorial Scholarship Run/Walk @ Ralston Valley High School, Arvada, CO, United States on 29 September 2018

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 […]

7th Annual Desert’s Edge Triathlon Festival @ Highline Lake State Park, Loma, CO, United States on 08 September 2018

The Desert’s Edge Tri Festival brings you two days of racing, a weekend of camping with other triathletes and their fans, and a fun end to the Colorado Tri Season. Desert’s Edge weekend includes your choice of XTERRA Sprint (not eligible for points) or XTERRA Tri on Saturday, your choice of Sprint or Olympic distance […]

Cheap 5K @ Colorado Springs Flea Market, Colorado Springs, CO, United States on 02 September 2018

Everything you expect from a race from Bigwig Races … only cheaper. We cut a few corners to knock a few dollars of our usual registration fees … but you can’t cut any corners on the course (we’re still timing you). PLUS, you even get a free pancake breakfast after the race.

Just Peachy Run Races (10k, 5k, Kids 1k) @ Palisade Riverbend Park, Palisade, Colorado, United States on 18 August 2018

MAD Racing Colorado invites you to work up an appetite with “Peachy” for the Palisade Peach Festival by running a USATF Sanctioned fun cross-country style course right before the Palisade Peach Festival opens. There will be a water station half way through this 5k course. Kids will run a 1k course that takes place part […]

Lisa Nelson’s Mustang Stampede 5K Memorial Scholarship Run/Walk @ Ralston Valley High School, Arvada, CO, United States on 30 September 2017

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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 […]

Cheap 5K @ Colorado Springs Flea Market, Colorado Springs, CO, United States on 03 September 2017

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Enjoy the Colorado Springs Flea Market in a whole new way. Then stick around for a free pancake breakfast.

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5K Family Walk/Run to STOMP out Epilepsy and SUDEP @ Clement Park, Littleton, CO, United States on 24 September 2017

5K Family Walk/Run to STOMP out Epilepsy and SUDEP

Join us at Clement Park in Littleton, Colorado on September 24, 2017 for the 8th Annual STOMP Out Epilepsy and SUDEP Awareness Walk/Run. Funds raised by this Foundation provide funds for fully-trained seizure-response dogs, life-saving movement monitors for those in need and grant wish trips to Epilepsy Awareness Expo and Day at Disneyland. If you […]

Pearl St Mile @ Downtow Boulder, Boulder, Colorado, United States on 09 August 2017

Pearl St MIle

20th annual Pearl St Mile is a Boulder, Co hometown event. Great for the whole family!

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Team In Training: Open Training and Informational Meeting @ Sloans Lake, Denver, CO, United States on 10 June 2017

Come join the TEAM for our first fall group training followed by QandA session.

Join your coaches and fall season teammates in starting the next Team In Training season. As always, we’ll celebrate the mission, first-time teammates and returning alumni, and the dynamic events available to our training teams.

Team In Training (TNT) is the […]

La Sportiva Boneyard Boogie 11k Trail Race – Vail, CO @ Eagle, Colorado, United States on 20 May 2017

La Sportiva Boneyard Boogie 11k Trail Race - Vail, CO

The La Sportiva Boneyard Boogie kicks off the 2017 La Sportiva Vail Trail Running Series with an 11k scamper through pinyon grooves and juniper schrubs. The race course is 95% singletrack and 5% double track with an elevation gain of 1448 feet reaching a maximum elevation of 7,650ft. end end