September Trail Runs in the West
Evergreen, CO
Bergen Peak Half Marathon
Sep 14, 2024
Logan, UT
Bear 100
Sep 27, 2024
Mount Hood, OR
Mt. Hood Trail Games
Sep 7, 2024
Big Sur, CA
Big Sur Trail Marathon
Sep 28, 2024
Glenwood Springs, CO
Sunlight Showdown
Sep 22, 2024
Bainbridge Island, WA
Winney Farm 5K/10K Trail Run
Sep 30, 2023
Easton, WA
Ultra Fest
Sep 21, 2024
Honolulu, HI
Tantalus Triple Trek
Sep 2, 2023
Fresno, CA
Run 4 The Miracle
Sep 23, 2023
Cheyenne, WY
Great Bison Shuffle
Sep 21, 2024
Crested Butte, CO
Crested Butte Ultra
Sep 28, 2024
Berkeley, CA
Berkeley Trail Adventure
Sep 14, 2024
Incline Village, NV
XTERRA Lake Tahoe 5K/10K
Sep 15, 2024
Newport, OR
Twisted Pine Run
Sep 8, 2024
Colorado Springs, CO
Nielson Two Mile Challenge
Mar 1, 2025
Apr 6, 2024
May 4, 2024
Jun 1, 2024
8 more
Granite Bay, CA
Gold Rush 10M Trail Run
Sep 21, 2024
San Jose, CA
Quicksilver Trail Challenge
Sep 16, 2023
South Hills Single Track Trail Run
Sep 14, 2024
Mt Umunhum to Quicksilver Point to Point
Sep 28, 2024
Durango, CO
Mountain Marmot Trail Run
Sep 23, 2023
Malibu, CA
Malibu Creek Trail Run
Sep 30, 2023
Park City, UT
Women's Epic 10K at Deer Valley Resort
Sep 28, 2024
Woodland Park, CO
Pony Express Run
Sep 22, 2024
Henderson, NV
Gift of Hope 5K
Sep 9, 2023
Steamboat Springs, CO
10K at 10,000 Feet Trail Run
Sep 1, 2024
Run Rabbit Run
Sep 14, 2024
Sep 13, 2024
Emerald Mountain Trail Run
Sep 28, 2024
Buena Vista, CO
Trail Sisters Women's Half Marathon
Sep 14, 2024
West Line Winder
Sep 28, 2024
14er Fest Races
Sep 29, 2024
Winter Park, CO
Elevation Everest - The Half Everest
Sep 28, 2024
Palmer, AK
Lakes TrailFest
Sep 8, 2024
Los Angeles, CA
Ascot Hills Challenge 5K
Sep 28, 2024
McCall, ID
IMTUF100
Sep 21, 2024
Manitou Springs, CO
Pikes Peak Ascent and Marathon
Sep 22, 2024 - Marathon
Sep 21, 2024 - Ascent
Louisville, CO
Louisville Trail Race
Sep 28, 2024
Woodside, CA
Crystal Springs
Sep 1, 2024
Silverado, CA
That's No Moon
Sep 28, 2024
Gilroy, CA
Mt. Madonna Challenge
Sep 7, 2024
Nederland, CO
Ned Ned Run
Sep 9, 2023
Tahoe City, CA
Great Trail Race
Sep 28, 2024
Boise, ID
Foothills XC12K
Sep 9, 2023
Plain, WA
Plain Endurance Runs
Sep 14, 2024
Winthrop, WA
Cutthroat Classic Mountain Trail Run
Sep 7, 2024
Mammoth Lakes, CA
Crowley Lake Trail Run
Sep 24, 2023
Marble, CO
Lead King Loop Charity Race
Sep 15, 2024
Aspen, CO
Golden Leaf Half Marathon
Sep 28, 2024
Mount Baldy, CA
Mt. Baldy Run-to-the-Top
Sep 2, 2024
San Ramon, CA
Rocky Ridge Trail Half Marathon
Sep 21, 2024
Port Angeles, WA
GOAT Run
Sep 7, 2024
Kalispell, MT
Foy's to Blacktail Trail Marathon
Sep 8, 2024
Littleton, CO
HRCA Wildcat Mountain Trail Races
Sep 28, 2024
Gardiner, MT
Big Bear Stampede
Sep 7, 2024
Auburn, CA
Sunset & Cider Trail Races
Sep 28, 2024
Clayton, CA
Diablo Trail Run
Sep 8, 2024
Billings, MT
Kids Trail Trek
Sep 8, 2024
Quitcherbitchen Trail Run
Sep 8, 2024
Let'R Buck 8
Sep 29, 2024
San Diego, CA
Bare Booty 5K
Sep 24, 2023
Donut Dash
Sep 15, 2024
Rocklin, CA
Ride To Walk Endurance Race
Sep 23, 2023
Copper Mountain, CO
Summit Up Trail Run
Sep 9, 2023
Pocatello, ID
P-Town's Mini Barkley
Sep 16, 2023
Helena, MT
Ridge Rumble 12K
Sep 8, 2024
Kennewick, WA
Jump off Joe Marathon
Sep 7, 2024
Three Forks, MT
John Colter Run
Sep 21, 2024
Breckenridge, CO
Breck Crest Mountain Marathon
Sep 3, 2023
Castro Valley, CA
Dick Collins Firetrails
Sep 28, 2024
Pagosa Springs, CO
Mountain Chile Cha Cha Trail Races
Sep 23, 2023
Alberta Peak Challenge
Sep 7, 2024
Ridgway, CO
John Wayne Grit Series
Sep 21, 2024
Bellvue, CO
Black Squirrel Half Marathon
Sep 7, 2024
Lakewood, CO
Lakewood Trail Series
Sep 4, 2024
Sep 11, 2024
Sep 18, 2024
Sep 25, 2024
Bear Chase Race - Half Marathon & 10K
Sep 29, 2024
Sep 28, 2024
Sisters, OR
Three Sisters Skyline
Sep 21, 2024
Anacortes, WA
Fidalgo Trail Run
Sep 28, 2024
Herriman, UT
Rose Canyon 5K
Sep 30, 2024
Palmer Lake, CO
24 Hours of Palmer Lake
Sep 28, 2024
San Marcos, CA
Double Peak Challenge
Sep 28, 2024
Klamath Falls, OR
Moore Mountain Trail Run
Sep 21, 2024
Beaver Creek, CO
The bRUNch Trail Run
Sep 17, 2023
North Bend, WA
Mt Si Hill Climb
Sep 7, 2024
Mt Si Vert Fest
Sep 7, 2024
Keystone, CO
Cirque Series - Arapahoe Basin
Sep 7, 2024
Willits, CA
Celebration of Life - Trail Trek
Sep 24, 2023
Echo, OR
Echo Sage Run
Sep 30, 2023
La Grande, OR
Drug Free Run
Sep 28, 2024
Kanab, UT
Mamele Mountains
Sep 7, 2024
Buxton, OR
Stub Stewart Trail Challenge
Sep 29, 2024
Tillamook, OR
Ultimook Race
Sep 7, 2024
Empire, CO
Devil on the Divide
Sep 7, 2024
Lake Tahoe, CA
Emerald Bay Trail Run
Sep 6, 2025
Richfield, UT
Crimson Canyons Ultra
Sep 21, 2024
Palos Verdes Peninsula, CA
Palos Verdes Trails 5K
Sep 29, 2024
Priest Lake, ID
Smokechaser 30K
Sep 9, 2023
Olallie Lake, OR
Mountain Lakes 100
Sep 21, 2024
Mountain Home, ID
Crater Crawl - Run Around The Rings
Sep 21, 2024
Parkdale, OR
Wy'east Wonder
Sep 7, 2024
Minturn, CO
Meadowgold Trail Run
Sep 14, 2024
Lakeshore, CA
China Peak Running Festival
Sep 7, 2024
Skykomish, WA
Iron Goat Trail 10K+
Sep 21, 2024
Mendocino, CA
Mendocino Running Festival
Sep 7, 2024
Arnold, CA
Arnold Rim Trail Endurance Runs
Sep 28, 2024
Pahala, HI
Ka'u Coffee Trail Runs
Sep 21, 2024
Teanaway, WA
Teanaway Country 100
Sep 21, 2024
Pray, MT
Yellowstone Gateway 30K
Sep 15, 2024
Pine Valley, CA
Noble Canyon 50K
Sep 14, 2024
Loma Mar, CA
Groves Trail Run
Sep 7, 2024
Deming, WA
Territory Run Camp
Sep 28, 2023
South Pass City, WY
Run The Red Desert
Sep 28, 2024
Nathrop, CO
Sawatch Ascent
Sep 29, 2024
Red Feather Lakes, CO
Red Feather Trail Jamboree
Sep 21, 2024
Sep 20, 2024
Sep 22, 2024
Tamarack, ID
Top of Tamarack
Sep 28, 2024
Annadel State Park, CA
Annadel Loop & Loop de Loop Trail Races
Sep 8, 2024
Lake of the Woods, OR
Brown Mountain Bigfoot Chase
Sep 23, 2023
Jamestown, CO
Calarat Challenge Trail Running Festival
Sep 3, 2023
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
1. 10K at 10,000 Feet Trail Run
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Sep 1, 2024Sunday
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10K, 5K trail run
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Steamboat Springs, CO
Routt County, CO
2. Crystal Springs
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Sep 1, 2024Sunday
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50K, 26.2M, 35K, 13.1M, 8K trail run | kids run
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Woodside, CA
San Mateo County, CA
3. Mt. Baldy Run-to-the-Top
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Sep 2, 2024Monday
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7.1M trail run
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Mount Baldy, CA
San Bernardino County, CA
4. Tantalus Triple Trek
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Past DateSep 2, 2023Saturday
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30M trail run
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Honolulu, HI
Honolulu County, HI
5. Breck Crest Mountain Marathon
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Past DateSep 3, 2023Sunday
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23M, 13.1M, 10K trail run
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Breckenridge, CO
Summit County, CO
6. Calarat Challenge Trail Running Festival
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Past DateSep 3, 2023Sunday
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13.1M, 10K, 5K trail run | kids run
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Jamestown, CO
Boulder County, CO
7. Lakewood Trail Series
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Sep 4, 2024Wednesday
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7M, 4M trail run
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Lakewood, CO
Jefferson County, CO
8. Portland Trail Series - Fall
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Sep 4, 2024Wednesday
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6M, 4M trail run
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Portland, OR
Multnomah County, OR
9. Emerald Bay Trail Run
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Sep 6, 2025Saturday
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12K trail run
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Lake Tahoe, CA
El Dorado County, CA
10. Alberta Peak Challenge
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Sep 7, 2024Saturday
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12M, 4M trail run
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Pagosa Springs, CO
Archuleta County, CO
11. Big Bear Stampede
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Sep 7, 2024Saturday
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9K, 5K trail run | kids run
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Gardiner, MT
Park County, MT
12. Black Squirrel Half Marathon
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Sep 7, 2024Saturday
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13.1M trail run
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Bellvue, CO
Larimer County, CO
13. China Peak Running Festival
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Sep 7, 2024Saturday
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100K, 50K, 25K, 10K trail run
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Lakeshore, CA
Fresno County, CA
14. Cirque Series - Arapahoe Basin
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Sep 7, 2024Saturday
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8.8M trail run
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Keystone, CO
Summit County, CO
15. Cutthroat Classic Mountain Trail Run
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Sep 7, 2024Saturday
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10.6M trail run
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Winthrop, WA
Okanogan County, WA
16. Devil on the Divide
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Sep 7, 2024Saturday
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50K, 22K trail run
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Empire, CO
Clear Creek County, CO
17. GOAT Run
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Sep 7, 2024Saturday
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50K, 26.2M, 13.1M trail run
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Port Angeles, WA
Clallam County, WA
18. Groves Trail Run
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Sep 7, 2024Saturday
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50K, 30K, 13.1M trail run
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Loma Mar, CA
San Mateo County, CA
19. Imogene Pass Run
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Sep 7, 2024Saturday
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17.1M trail run
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startOuray, COfinishTelluride, COOuray County, COSan Miguel County, CO
20. Jump off Joe Marathon
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Sep 7, 2024Saturday
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26.2M, 13.1M, 10K trail run
More Information
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Kennewick, WA
Benton County, WA
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.