Blue Sky Marathon

Blue Sky Marathon
DateSeptember
LocationFort Collins, Colorado, United States
Event typeTrail
Distancehalf-marathon, marathon, 50K
Established2008
Official siteRace homepage

The Blue Sky Marathon is a series of trail races held outside of Fort Collins, Colorado.[1] The current lineup of races includes a half-marathon, a marathon, and a 50K.

All races start in Horsetooth Mountain Open Space in Larimer County. The majority of the race is on singletrack trails, although individual sections range from gravel paths to technical rocky terrain. The marathon starts and finishes at the Blue Sky Trail trailhead.[2] The course goes through the Horsetooth Mountain Park and Devil's Backbone Open Space.[3] The cut off time for the marathon is 9 hours.[4]

Past winners

Marathon

  • Male: Johannes Rudolph 3:23:46.3 2008
  • Female: Lindsey Habermann 4:30:09.2 2008

Half marathon

  • Male: Jonathan Vigh 1:31:30.2 2008
  • Female: Susan Nuzum 1:43:19.3 2008

References

  1. ^ "Blue Sky Marathon handles winter weather with ease". Colorado Runner. 2020-11-17. Retrieved 2026-04-22.
  2. ^ Meyers, Stephen. "Nicholas Davis, Maria Petzold, win Blue Sky Marathon". Fort Collins Coloradoan. Retrieved 2026-04-22.
  3. ^ "Blue Sky Marathon 2026 - Race Details - USA Marathon List". www.usamarathonlist.com. Retrieved 2026-04-22.
  4. ^ "Events Calendar". Greeley Tribune. 2020-05-26. Retrieved 2026-04-22.