Trail Runs in Colorado — 2026

There are 33 trail runs in Colorado scheduled for 2026. The next is the Beas Knees Citizens' Race and National High School Trail Championships in Salida on July 25. Colorado trail runs run primarily July through June.

Beas Knees Citizens' Race and National High School Trail Championships

Sat, Jul 25 · Salida, CO Salida

Beas Knees Citizens' RaceGirls' National ChampionshipBoys' National Championship

From $25 Open Closing Soon

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Kennebec Mountain Run

Sat, Aug 1 · Hesperus, CO Hesperus

15 Mile

From $75 Open Closing Soon

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Sheep Mountain Trail Runs

Sat, Aug 1 · Fairplay, CO Fairplay

Half Marathon50k50-Mile

From $70 Open Closing Soon

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Pat's Pony Express

Sat, Aug 8 · Woodland Park, CO Woodland Park

Pat's Pony Express - 8 MilePat's Pony Express - 16 Mile

From $65 Open Closing Soon 75 spots left

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Pat's Pony Express

Sat, Aug 8 · Colorado Springs, CO Colorado Springs

Pat's Pony Express - 8 MilePat's Pony Express - 16 Mile

From $65 Closed 75 spots left

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Into the Hills Eltuck 10k

Tue, Aug 11 · Bellvue, CO Bellvue

Into the Hills Eltuck 10k

From $25 Open

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The Cheyenne Mountain Run

Sat, Aug 15 · Colorado Springs, CO Colorado Springs

5K10K25K

From $40 Open

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Into the Hills Eltuck 5k

Tue, Aug 18 · Bellvue, CO Bellvue

Into the Hills Eltuck 5k

From $25 Open

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Eltuck Valley 12K - Lory Summer Trail Series

Tue, Aug 25 · Bellvue, CO Bellvue

Eltuck Valley 12k

From $25 Open

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Bluffs Run 8K

Sun, Aug 30 · Lone Tree, CO Lone Tree

8K

From $30 Open

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Cirque Series - Arapahoe Basin, CO

Sat, Sep 5 · Keystone, CO Keystone

Pro DivisionSport Division (beginner / intermediate)Expert Division

From $90.15 Open

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53rd Annual Imogene Pass Run

Sat, Sep 12 · Telluride, CO Telluride

53rd Annual Imogene Pass Run

From $130 Open

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Trail Sisters Women's Half Marathon & 10k

Sat, Sep 12 · Buena Vista, CO Buena Vista

Trail Sisters Women's 10kTrail Sisters Women's Half Marathon

From $55 Open

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Red Feather Trail Jamboree

Fri, Sep 25 · Red Feather Lakes, CO Red Feather Lakes

Red Feather Trail Jamboree Half MarathonRed Feather Trail Jamboree 50kmRed Feather Trail Jamboree 50 Mile +1

From $90 Open Closing Soon

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Estes Epic

Sat, Sep 26 · Estes Park, CO Estes Park

Heavy Half Marathon50k Bike50k Run +1

From $80 Open Closing Soon

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West Line Winder

Sat, Sep 26 · Buena Vista, CO Buena Vista

50k30k

From $105 Open

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Mountain Marmot Trail Run presented by Durango Running Company

Sat, Sep 26 · Durango, CO Durango

Mountain Marmot Trail Run

From $85 Open

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Sangre de Cristo Trail Festival

Sat, Sep 26 · Westcliffe, CO Westcliffe

8-Mile27k50k +3

From $40 Open

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OUTLAST COLORADO SPRINGS

Sat, Sep 26 · Colorado Springs, CO Colorado Springs

6 Hour Challenge

From $90 Open

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Greenland Open Space Pack Burro Race presented by Double Rainbow Ranch (8 Mile and 3 Mile)

Sun, Sep 27 · Larkspur, CO Larkspur

Greenland Open Space 3 MileGreenland Open Space 8 Mile

From $60 Open 85 spots left

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OUTLAST DENVER

Sat, Oct 3 · Littleton, CO Littleton

6 Hour Challenge

From $90 Open

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HRCA Wildcat Mountain Trail Races

Sat, Oct 3 · Littleton, CO Littleton

10K10MKid's Race

From $10 Open Closing Soon

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Rubey Rescue Run

Sun, Oct 4 · Aspen, CO Aspen

1 Mile3.5M Trail Run

From $60.38 Open

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Suffer Better 10th Annual Fall Trail Runs

Sat, Oct 10 · Pine, CO Pine

Suffer Better 25KSuffer Better 25K - FishSlappers DivisionSuffer Better 50K +1

From $25 Open 30 spots left

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Indian Creek Trail Runs

Sat, Oct 17 · Sedalia, CO Sedalia

5-Mile15-Mile55k +1

From $30 Open Closing Soon

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Blue Sky Trail Marathon & Half Marathon

Sat, Oct 17 · Fort Collins, CO Fort Collins

Blue Sky Trail Half MarathonBlue Sky Trail Marathon

From $90 Open

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HRCA Backcountry Wilderness Half Marathon

Sat, Nov 7 · Lone Tree, CO Lone Tree

Half Marathon

From $65 Open

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Sawmill Trail Runs

Sat, Dec 5 · Pine, CO Pine

8-Mile16-Mile50k

From $60 Closed

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Stories Trail Runs

Sat, Feb 6 · Colorado Springs, CO Colorado Springs

10k10kHalf Marathon +11

From $60 Closed

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22nd Annual Run Through Time Trail Marathon and Half Marathon

Sat, Mar 13 · Salida, CO Salida

A Run Through Time 2 Mile RunA Run Through Time 2 Mile RunA Run Through Time Trail Half Marathon +3

From $15 Closed

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Endure Trail Runs

Sat, May 15 · Divide, CO Divide

10k10kHalf Marathon +7

From $60 Closed

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Summits Trail Runs

Sat, Jun 12 · Granby, CO Granby

6-Mile6-MileHalf Marathon +7

From $60 Closed

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Race in the Clouds - Alma Dirt Festival 2027

Thu, Jun 24 · Alma, CO Alma

Highschool/Middle School Short Course (6.1miles)Highschool/Middle School Short Course (6.1miles)Trail 10K +19

From $0 Open 10 spots left

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