Trail Races in Colorado

Find upcoming trail races in Colorado — with dates, locations, and direct registration links.

13 upcoming trail races found in Colorado

Upcoming Trail Races in Colorado

2026 CKF Leadville Trail 100 MTB+2

Aug 15

2026 CKF Leadville Trail 100 MTB

Sat, August 15, 2026

Leadville, CO

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5K Trail Run+2

Aug 29

RexRun For PAWSitivity 2026 Trail Run/Walk

Sat, August 29, 2026

Aurora, CO

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Trail Sisters Women's Half Marathon+1

Sep 12

Trail Sisters Women's Half Marathon & 10k

Sat, September 12, 2026

Buena Vista, CO

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Steele Trap Trail Run

Sep 12

Steele Trap Trail Run

Sat, September 12, 2026

Loma, CO

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Half-Marathon+5

Sep 19

Beulah Challenge and OverIt Series

Sat, September 19, 2026

Beulah, CO

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Red Feather Trail Jamboree 50 Mile+3

Sep 25

Red Feather Trail Jamboree

Fri, September 25, 2026

Red Feather Lakes, CO

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Mountain Marmot Trail Run

Sep 26

Mountain Marmot Trail Run presented by Durango Running Company

Sat, September 26, 2026

Durango, CO

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5K Road Run+6

Oct 3

Rim to Rim Royal Gorge Races: 5K Road Run, Trail 8 Mile, Trail Half Marathon

Sat, October 3, 2026

Canon City, CO

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3.1M Trail Run

Oct 4

Rubey Rescue Run

Sun, October 4, 2026

Aspen, CO

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All the trails

Oct 4

Evergreen Mountain Weeknight Race

Sun, October 4, 2026

Evergreen, CO

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Blue Sky Trail Marathon+1

Oct 17

Blue Sky Trail Marathon & Half Marathon

Sat, October 17, 2026

Fort Collins, CO

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A Run Through Time Trail Marathon+2

Mar 13

22nd Annual Run Through Time Trail Marathon and Half Marathon

Sat, March 13, 2027

Salida, CO

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FREE Kids Mountain Bike and Trail Run+10

Jun 24

Race in the Clouds - Alma Dirt Festival 2027

Thu, June 24, 2027

Alma, CO

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