Best Colorado Trail Races

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Local trail races are as varied as the beautiful Colorado landscape. They can cover service roads, dirt paths, single track, rugged and technical trail, to full out scrambling. And they can take place from your local neighborhood to mountain towns to high up along some of the highest peaks and remote countryside. They can boast wide vistas, wildflowers and changing fall colors on flat, rolling or steep terrain and can range from 5k to over 100 miles. What that means is there is a trail race for runners of all abilities, commitment levels and …. And besides all the benefits of discovering the outdoors, the trail running community is one of the most supportive and inspiring around.

We captured some of the highlights of Colorado trail races that take place within a few hour drive of Boulder. By no means is this an exhaustive list, but will give a good sense of the range of races. Trail race series are listed below for more links.

Colorado Trail Races Near Boulder, CO


[cbtab title=”June”]

6/4 Golden Gate Dirty 30 – Black Hawk, CO- 50k/12k

6/18 Howelsen Hill Trail Run – Steamboat Springs, CO – 8M/4M trail

6/18 Leadville Trail Marathon & Heavy Half – Leadville, CO – Marathon/Half


[cbtab title=”July”]

7/2 Mountain Madness – Steamboat Springs, CO – Half/10k

7/10 Summer Roundup – Colorado Springs, CO – 12k

7/16 Sheep Mountain Endurance Run – Fairplay, CO – 53M


[cbtab title=”Aug”]

8/7 La Sportiva Berry Picker – Vail, CO – 5k

8/7 XTERRA Castle Rock Trail Run – Castle Rock, CO – 24K/12K/5K

8/20 Continental Divide Trail Run – Steamboat Springs, CO 50K/16M

8/20 Leadville 100 Trail Run – Leadville, CO – 100M

8/20 Pikes Peak Ascent – Colorado Springs, CO – 13.32 miles (Straight up)

8/21 Pikes Peak Marathon – Colorado Springs, CO

8/21 La Sportiva 5k/10k@10,000 Feet – Vail, CO – 5k/10k

8/26 Blue Moon Summer Series – Colorado Springs – 10k


[cbtab title=”Sept “]

9/4 10k at 10,000′ – Steamboat Springs, CO – 10k

9/5 American Discovery Trail Marathon – Colorado Springs, CO – Marathon/Half/10k

9/10 Rattlesnake Ramble – Eldorado Springs, CO – 4.25 mile

9/10 Boulder Trail Running Festival – Boulder, CO – Starts at 3pm-10p

9/10 ERS Denver Trail Half Marathon – Denver, CO – Half Marathon

9/16-17 Run Rabbit Run – Steamboat Springs – 50 mile/100 mile

9/18 La Sportiva EverGold – Vail, CO 5k/11k

9/24 Silverton Double 30 – Silverton, CO – 100k

9/24  Snow Mountain Ranch Granby, CO – Half /10k/ 5k

9/24  Emerald Mountain Trail Run – Steamboat Springs, CO – 12K/5K/Fun Run

9/24 Golden Leaf Half – Aspen, CO – Half


[cbtab title=”Oct”]

10/2 CalaRat Challenge – Jamestown, CO – Half/5k/Kids’ 800m

10/2 Estes Trail Ascent Run – Estes Park, CO – 5.8M

10/9 ERS Louisville Trail Half Marathon – Louisville, CO – Half/10k/5k

10/9 XTERRA Cheyenne Mountain – Colorado Springs, CO – Marathon/Half/5k

10/15 Indian Creek 50s – Sedalia, CO – 52M/55k

10/21 The Cheyenne Mountain Run – Colorado Springs, CO – 5k/9M



More Colorado trail races can be found on ATRA

Colorado Trail Running Series

La Sportiva Trail Running Series

Steamboat Springs Trail Running Series

Leadville Race Series

Endurance Race Series

Blue Moon Trail Run Series

Human Potential Running Series

Fat Ass Ultra Series

One thought on “Best Colorado Trail Races”

  1. Toni Case says:

    Don’t forget the Aspen Backcountry Marathon & Half on August 11, 2018 in Aspen, CO. Lots of vertical, almost exclusively on single track and incredibly scenic!

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