Trail Runs in Colorado — 2026

There are 20 trail runs in Colorado scheduled for 2026. The next is the Suffer Better 10th Annual Fall Trail Runs in Pine on October 10. Colorado trail runs run primarily October through September.

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 Closed 30 spots left

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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 Closing Soon

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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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Chili Chase

Sat, Oct 17 · Durango, CO Durango

Chili Chase

From $40 Open Closing Soon 49 spots left

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McGraw Memorial Park "Quick Draw @ McGraw" 2.1 & 12.6 Mile Trail Races

Sat, Oct 24 · Bailey, CO Bailey

2 Mile *VIRTUAL* Trail Run/ Walk2 Mile Trail Walk or Walk/Run2 Mile Trail Run +1

From $25 Open Closing Soon

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HRCA Backcountry Wilderness Half Marathon

Sat, Oct 31 · Lone Tree, CO Lone Tree

Half Marathon

From $65 Open Closing Soon

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Kessel Run Ultra

Sat, Nov 7 · Fruita, CO Fruita

10 Mile20 Mile40 Mile +2

Closed

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Lone Tree Reckoning Heavy 15K and 5K

Sat, Nov 14 · Loveland, CO Loveland

5KHeavy 15K

From $45 Open

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Sawmill Trail Runs

Sat, Dec 5 · Pine, CO Pine

8-Mile16-Mile50k

From $60 Open

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Stories Trail Runs

Sat, Feb 6 · Colorado Springs, CO Colorado Springs

10k10kHalf Marathon +11

From $60 Open

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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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Farish Trail Race

Sat, May 22 · Woodland Park, CO Woodland Park

Kids Run5K5K +4

From $0 Closed

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Samson's Revenge

Sat, May 22 · Estes Park, CO Estes Park

10k10k25k +3

From $95 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

Fri, Jun 25 · Alma, CO Alma

Highschool/Middle School Short Course (6.1miles)Highschool/Middle School Short Course (6.1miles)Trail 10K +21

From $0 Open 10 spots left

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Silverheels Trail Runs

Fri, Jul 9 · Como, CO Como

10-Mile10-Mile19-Mile +9

From $50 Closed

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Kennebec Mountain Run

Sat, Aug 7 · Hesperus, CO Hesperus

15 Mile15 Mile

From $75 Closed

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Sheep Mountain Trail Runs

Sat, Aug 7 · Fairplay, CO Fairplay

Half MarathonHalf Marathon50k +3

From $70 Closed

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Sangre de Cristo Trail Festival

Sat, Sep 25 · Westcliffe, CO Westcliffe

8-Mile8-Mile27k +9

From $40 Closed

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