Upcoming Races Near Idaho Springs, CO - Matching: Trail Races

Name: Summer Splash Prairie Dog Half, 10k, & 5k
Start: 2026-07-18
End: 2026-07-18
Location: Castle Rock

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Calarat Challenge Trail Running Festival

Jamestown, CO

Saturday, August 30th, 2025

Half

10K

Trail

View details for race Calarat Challenge Trail Running Festival

RexRun For PAWSitivity 2025 5K Trail Run/Walk

Aurora, CO

Saturday, September 6th, 2025

1 Mile

Trail

View details for race RexRun For PAWSitivity 2025 5K Trail Run/Walk

HRCA Wildcat Mountain Trail Races

Littleton, CO

Saturday, September 6th, 2025

10 Miles

10K

Trail

View details for race HRCA Wildcat Mountain Trail Races

Cirque Series - Arapahoe Basin, CO

Keystone, CO

Saturday, September 6th, 2025

Trail

View details for race Cirque Series - Arapahoe Basin, CO

All-Out Fall Fest

Westminster, CO

Saturday, September 13th, 2025

Half

10K

Trail

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Estes Epic

Estes Park, CO

Saturday, September 27th, 2025

Ultra

Trail

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Race in the Clouds - Festival 5K

Alma, CO

Saturday, September 27th, 2025

Trail

View details for race Race in the Clouds - Festival 5K

RunAbilities FUN Walk/Run/Roll

Parker, CO

Saturday, October 4th, 2025

Trail

View details for race RunAbilities FUN Walk/Run/Roll

Suffer Better 9th Annual Fall Trail Runs

Pine, CO

Saturday, October 11th, 2025

Ultra

Trail

View details for race Suffer Better 9th Annual Fall Trail Runs

The Great Trailhead Foot Race 10 Miler & 5k

Lakewood, CO

Saturday, October 18th, 2025

10 Miles

Trail

View details for race The Great Trailhead Foot Race 10 Miler & 5k

Indian Creek Trail Runs

Sedalia, CO

Saturday, October 18th, 2025

Trail

View details for race Indian Creek Trail Runs

2025 Eerie Erie

Erie, CO

Saturday, October 25th, 2025

10K

Trail

View details for race 2025 Eerie Erie

All-Out Kooky-Spooky

Golden, CO

Sunday, November 2nd, 2025

Half

10K

Trail

View details for race All-Out Kooky-Spooky

HRCA Backcountry Wilderness Half Marathon

Lone Tree, CO

Saturday, November 8th, 2025

Half

Trail

View details for race HRCA Backcountry Wilderness Half Marathon

Mountain Madness Fall Frenzy Orienteering Trail...

Golden, CO

Sunday, November 9th, 2025

Trail

View details for race Mountain Madness Fall Frenzy Orienteering Trail Race

10k Turkey Trek & 5k Turkey Trot - Now With HAL...

Arvada, CO

Saturday, November 22nd, 2025

Half

10K

Trail

View details for race 10k Turkey Trek & 5k Turkey Trot - Now With HALF MARATHON DISTANCE!

All-Out Fa La La

Westminster, CO

Saturday, December 6th, 2025

Half

10K

Trail

View details for race All-Out Fa La La

Sawmill Trail Runs

Pine, CO

Saturday, December 6th, 2025

Trail

View details for race Sawmill Trail Runs

Resolute Runner 5k

Arvada, CO

Thursday, January 1st, 2026

Trail

View details for race Resolute Runner 5k

All-Out Polar Prowl

Arvada, CO

Saturday, January 10th, 2026

Half

10K

Trail

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All-Out Mardi Crawl

Arvada, CO

Sunday, February 22nd, 2026

Half

10K

Trail

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All-Out Spring Fever

Golden, CO

Sunday, March 22nd, 2026

Half

10K

Trail

View details for race All-Out Spring Fever

Platte River Half-Marathon and Relay

Littleton, CO

Sunday, April 12th, 2026

Half

Trail

View details for race Platte River Half-Marathon and Relay

All-Out Beat the Heat

Westminster, CO

Saturday, April 18th, 2026

Half

10K

Trail

View details for race All-Out Beat the Heat

Greenland Trail Races

Larkspur, CO

Saturday, May 2nd, 2026

Ultra

Trail

View details for race Greenland Trail Races

Summits Trail Runs

Granby, CO

Saturday, June 6th, 2026

10K

12K

Trail

View details for race Summits Trail Runs

Colorado 13er (Half Marathon/10k/5k)

Louisville, CO

Sunday, June 7th, 2026

Half

10K

Trail

View details for race Colorado 13er (Half Marathon/10k/5k)

All-Out Summer Breeze

Arvada, CO

Saturday, June 13th, 2026

Half

10K

Trail

View details for race All-Out Summer Breeze

Race in the Clouds - Alma Dirt Festival 2026

Alma, CO

Saturday, June 27th, 2026

Marathon

Half

1 Mile

Trail

Fast

View details for race Race in the Clouds - Alma Dirt Festival 2026

All-Out Dog Days

Westminster, CO

Saturday, July 11th, 2026

Half

10K

Trail

View details for race All-Out Dog Days

Summer Splash Prairie Dog Half, 10k, & 5k

Castle Rock, CO

Saturday, July 18th, 2026

Half

10K

Trail

View details for race Summer Splash Prairie Dog Half, 10k, & 5k

Explore more in Idaho Springs, CO

Distances:

5K 10K Half Marathon Marathon

Months:

August September October

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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