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Hot List September 2025: West

UltraSignup News

August 29th, 2025

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🔥 Upcoming Races in the West – September Hot List! UltraSignup

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Big Cottonwood Canyon Classic

Photo Credit: Big Cottonwood Canyon Classic – Half Marathon, 5K, 5K Walk – Brighton, UT

Hey Runner!

We bring you the September UltraSignup Hot List with a side of crisp fall air. 🍂 The kids are back in school learning, and you should be out on the trails racing! 📚 Consider this your cliff notes to the best races to register for this season.

Here’s what’s inside:
🔥 Races still open for registration
📈 Price bumps coming soon
📆 Races opening next month
🌍 International adventures worth cashing in those vacation days

📍This email zooms in on the West: Utah, Texas, Wyoming, Montana, Oklahoma, Colorado, Idaho, Arizona, New Mexico, and Nevada.

Want to explore races in other regions? Find them all here:

Happy racing,
The UltraSignup Team

FEATURED RACES

09/27/2025

Big Cottonwood Canyon Classic – Half Marathon, 5K, 5K Walk – Brighton, UT

10/04 – 10/05/2025

The Bear Chase – 100K, 50 Mile, 50K, Half Marathon, 10K, 5K – Lakewood, CO

11/22 – 11/23/2025

Dinosaur Valley Endurance Run – 100 Miler, 100K, 50K, 25K, 5 Miler – Glen Rose, TX

12/06/2025

McDowell Mountain Frenzy – 50 Miler, 50K, 25K, 10 Miler, 5 Miler – Fountain Hills, AZ

03/27 – 04/03/2026

Arizona Monster 300 – 300 Miles – Patagonia, AZ

UPCOMING RACES THAT STILL HAVE ROOM

09/05 – American Heroes Run – Longmont, CO
09/06 – Lone Star Night Run – Weatherford, TX
09/06 – DoWackaDo Trail Runs & Gravel Rides – Erick, OK
09/12 – Goat Rattler 100 – North Ogden, UT
09/12 – If You’re Not First You’re Last – Eagle, ID
09/13 – Jelm Mountain Run – Jelm, WY
09/13 – Oak Flats Picnic Trails – Tijeres, NM
09/13 – Snow Mountain Ranch – Granby, CO
09/13 – Monkey Butt Mayhem – Gordonville, TX
09/13 – Ouray 50 Mile Endurance Run – Ouray, CO
09/13 – Valkyrie Ultra Heptathlon – Durango, CO
09/13 – Caprock Night Runs – Quitaque, TX
09/20 – Flagstaff to Grand Canyon Stagecoach Line Ultra – Flagstaff, AZ
09/20 – IMTUF 100 – Idaho Mountain Trail Ultra Festival – McCall, ID
09/20 – Crimson Canyons Ultra – Richfield, UT
09/20 – Javelina Jangover Night Runs – Scottsdale, AZ
09/20 – Ouray Mountain Trail Run – Ouray, CO
09/20 – Sunset Run – Gallup, NM
09/20 – Gull Lake 25K – Vernal, UT
09/20 – Jordan River Marathon – South Jordan, UT
09/20 – A Walk/Run to Remember 2025 – Carson city, NV
09/20 – Paris Pair – Paris, TX
09/20 – Liberty’s Lost Treasure – Guthrie, OK
09/20 – Desert Wolf – Johnson City, TX
09/20 – Death by 5k Tulsa – Tulsa, OK
09/20 – Race the Rocks – Almo, ID
09/20 – Gaspin Through The Aspens – American fork, UT
09/27 – Run the Red Desert – South Pass City, WY
09/27 – Montana Meltdown – Bozeman, MT
09/27 – Flagstaff Sky Peaks – Flagstaff, AZ
09/27 – Carson Canyons Trail Runs – Carson City, NV
09/27 – Deep Creek Trail Half Marathon – Telluride, CO
09/27 – Big Cottonwood Canyon Classic – Brighton, UT
09/27 – Bogus 50/50 – Boise, ID
09/27 – Crested Butte Ultra – Crested Butte, CO
09/27 – 24 Hours of Palmer Lake – Palmer Lake, CO
09/27 – WILD Wahatoya Runs – La Veta, CO
09/27 – Babbitts Backyard Ultra – Flagstaff, AZ

RACES INCREASING IN PRICE THIS MONTH

09/13 – Jelm Mountain Run – WY
09/13 – Valkyrie Ultra Heptathlon – CO
09/20 – A Walk/Run to Remember 2025 – NV
09/20 – Paris Pair – TX
09/20 – Liberty’s Lost Treasure – OK
09/27 – 24 Hours of Palmer Lake – CO
10/04 – Hanging Flume 50k – CO
10/04 – Dana Peak Trail Run – TX
10/11 – Bear Trap Trail Races – UT
10/11 – Dimple Dell Half Marathon – UT
10/11 – 5th Annual SVH 5K Fun Run – NM
10/18 – Antelope Island 50K – UT
10/18 – Jordan River Backyard – UT
10/18 – Peavine Peak Hill Climb – NV
10/25 – Trail of Terror – NV
10/25 – Lake Murray Endurance Run – OK
10/25 – Beware the Bear Trail Races – CO
11/01 – Deadman Peaks Trail Run – NM
11/01 – Nevada Day Classic – NV
11/01 – Traverse Mountain Half Marathon – UT
11/08 – Truth or Consequences Desert Ultra – NM
11/08 – Rockledge Rumble – TX
11/14 – Big Texas Ultra – TX
11/15 – Louisville Trail Race – CO
11/21 – Fat Ox – AZ
11/29 – Bosque Bigfoot Trail Runs – NM
12/06 – McDowell Mountain Frenzy – AZ
12/06 – The Capstone 50K – UT
12/06 – Mayhem Night Trail – AZ
12/28 – Across the Years – AZ
01/31 – AZT Oracle Rumble – AZ
02/07 – Texas Ultra Series – TX

RACES OPENING REGISTRATION THIS MONTH

11/22/2025 – Valley Stream Runs – NY
11/27/2025 – Healdsburg Turkey Trot – CA
12/06/2025 – Hitchcock Experience Endurance Runs – IA
12/06/2025 – Thumbs Up Vertical Challenge – CO
12/13/2025 – Blue Canyon Trail Run – NM
01/01/2026 – Doomsday 5K – MO
01/01/2026 – Apples in the Oranges – NJ
01/03/2026 – Oceans 26.2 Relay & 6k Run/Walk – FL
01/26/2026 – Arrowhead 135 – MN
01/30/2026 – Dark Anchor – GA
02/14/2026 – Susitna 100 – AK
02/14/2026 – Fort Yargo Thrill In The Hills – GA
02/14/2026 – The Ranch 50k – CA

FEATURED INTERNATIONAL RACES

09/27 – 10/05/2025

Ecuador Running Retreat with Hayden Hawks – 9 days, 8 nights – Quito, Ecuador

11/21 – 11/23/2025

RMB Ultra-Trail Cape Town – 100 Mile, 100K – Cape Town, South Africa

02/20 – 02/22/2026

Ocean to Ocean 100M, El Reto del Indio – 100 Mile Relay, 160K, 105K, 55K – Salud, Panama

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