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Rocky Mountain - Half Marathon

Aug 02, 2025

This is a challenging but scenic run just outside Rocky Mountain National Park. It starts and ends by the lake at the fa...

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July 4th ROCK-IT RUN - Half Marathon | 5K

Jul 04, 2025

A NEW WAY TO START YOUR JULY 4th HOLIDAYJoin us for the 5th Annual ROCK-IT RUN 5k, Half Marathon (Relay Optional), and F...

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Timberview Trail Run - 5K

Jun 28, 2025

Crisp morning air and a summer sunrise in Colorado. YES PLEASE! Join us on the foothills at Lory State Park for a fun &a...

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Leadville Trail - Marathon

Jun 28, 2025

Simply put, the nation’s toughest marathon. The Life Time Leadville Trail Marathon and Heavy Half presented by La Spor...

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Unicorn - 5K

Jun 21, 2025

Ready to get off the sofa and gallop around Thornton with some friends? Yeah, you are! Come frolic with us at the Unic...

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Father's Day Classic - 10K | 5K

Jun 15, 2025

It's an annual Fathers Day tradition in Arvada! All are welcome - walkers, joggers and speed demons, too! Swag includes...

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Sierra's Race Against Meningitis - 5K

Jun 14, 2025

Help raise meningitis awareness & save lives today!...

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Colorado 13er - Half Marathon | 10K | 5K

Jun 01, 2025

The Colorado 13er is THE event where the best parts of trail running and road racing combine to create a truly enjoyable...

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Spirit Trail Run - Marathon | Half Marathon

May 25, 2025

We have been a family-run racing business since 2014.Our goal: to bring runners/hikers to beautiful trails, on well-mark...

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Samson's Revenge Trail Race - 10K

May 17, 2025

Samson was the celebrity elk of the Rockies until he was illegally poached in 1995 on YMCA grounds.Our race runs on Sams...

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15 Homes In 5 Years - 10K | 5K

May 17, 2025

Join Habitat for Humanity of Archuleta County as we celebrate the kickoff of Year 4 of our plan to build 15 homes in 5 y...

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Fruita Trail - Half Marathon

May 11, 2025

This exciting half marathon course is a fun and challenging loop on beautiful flowy singletrack in Fruita, CO. With shor...

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Colorado Women's Classic - Westminster - 10K | 5K

May 11, 2025

We are excited to return to Westminster for the 2025 Colorado Women's Classic! While focused on women, all genders are W...

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Valkyrie Trail Race - Marathon | Half Marathon

May 10, 2025

Taking place in Cheyenne Mountain State Park in southern Colorado Springs, Valkyrie Trail Race is a must-do ladies' even...

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Longmont - Half Marathon | 5K

May 04, 2025

Longmont's only Half Marathon - now offered in the cooler month of MAY! Join the Half Marathon or 5k distance! Walkers...

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Colorado Marathon - Marathon | Half Marathon | 10K | 5K

May 04, 2025

Welcome to the Colorado Marathon, one of the most stunning races in the country! This annual marathon is held in the ver...

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Take 5 In The Garden Of The Gods - 5K

May 03, 2025

Who can turn down a morning in Garden of the Gods? We'll close the park to traffic, so runners can enjoy their race, tra...

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Unicorn - 5K

Apr 27, 2025

Ready to gallop around Denver with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k at Great ...

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NOCO - Half Marathon | 10K

Apr 27, 2025

Spring is the season of renewal and running. We hope you join us for a fun adventure that embodies the spirit of springt...

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Reg TT

Apr 30, 2025

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All-Out Runapalooza - Half Marathon | 10K | 5K

Aug 02, 2025

As the summer mornings start to cool, join us for a fantastic end-of-season celebration at our 12th annual Runapalooza! ...

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All-Out Dog Days - Half Marathon | 10K | 5K

Jul 12, 2025

Get ready for a sun-soaked adventure and a fantastic mid-season challenge with our 13th Annual Dog Days 5K, 10K & Ha...

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All-Out Summer Breeze - Half Marathon | 10K | 5K

Jun 07, 2025

Join us for our 13th annual Summer Breeze, benefiting the Food Bank of the Rockies! Tackle relatively gentle 5K, 10K, an...

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Colorado Springs - Marathon | Half Marathon | 5K

Sep 28, 2025

The Colorado Springs Marathon, Half, 5k, Kids KJoin us at the Colorado Springs Marathon on Saturday, September 28, 2024....