Crested Butte Ultra

More races nearby

• Grin & Bear It [runsignup.com]

  Sat, Jul 11, 2026 at 8:00 AM

  Description

  ▼ Show more Show less

  The Grin & Bear It is Crested Butte’s oldest trail challenge. Historically presented as a sprint to Green Lake and back, this classic event has evolved to offer a 25k Loop competition while still...

  The Grin & Bear It is Crested Butte’s oldest trail challenge. Historically presented as a sprint to Green Lake and back, this classic event has evolved to offer a 25k Loop competition while still maintaining the traditional 15k race.

  New in 2025, the Grin and Bear it BIKE! This route will follow the 25k run route, excluding the .7 miles to Green Lake and back. This challenging route is roughly 14.83 miles with just under 4k feet of climbing.

  Note- there is minimal swag and no podium awards for this event.

  3.8 km
  620 2nd Street, Crested Butte, Colorado, 81224, United States
  OpenStreetMap Google Maps

  9.32 Miles 14.83 Miles 15.53 Miles Run Trail

• Audi Power of Four Trail Run [goo.gl] [Register at runsignup.com]

  Sat, Jul 18, 2026 at 6:00 AM

  Description

  The Audi Power of Four Trail Run offers runners a scenic mix of trails across the mountains of Aspen Snowmass. Registrants can choose between the 3 distances offered including 50K, 25K & 10K.

  34.4 km
  601 E Dean St, Aspen, Colorado, 81611, United States
  OpenStreetMap Google Maps

  10k 15 Miles 31 Miles Run Trail

• Aspen Valley Marathon [aspenvalleymarathon.com] [Register at runsignup.com]

  Sat, Jul 25, 2026 at 6:00 AM

  Description

  http://www.aspenvalleymarathon.com

  35.1 km
  Puppy Smith Street, Aspen, Colorado, 81611, United States
  OpenStreetMap Google Maps

  5k 13.1 Miles 26.2 Miles Marathon Run

• Volcanic 50 [finishers.com]

  Sat, Aug 01, 2026

  Description

  🗺 Volcanic 50 is the must-attend sporting event to mark on your race calendar in the United States 🇺🇸 in Marble.

  27.3 km
  Gunnison County, Colorado, United States
  OpenStreetMap Google Maps

  Run Trail

• Aspen Backcountry Marathon [aspenspecialevents.com]

  Sat, Aug 01, 2026

  34.9 km
  Courthouse Trail, Aspen, Colorado, 81612, United States
  OpenStreetMap Google Maps

  50k Half Marathon Marathon Run