Blue Sky Marathon & Half: Header

2025 Pre-Race Briefing

Marathon Race Tracking

Half Marathon Live Finish Results

  • Start: Blue Sky Trailhead, Horsetooth Mountain Park. Fort Collins, Colorado
  • Distance: 26.7 miles (3,500′) or 13.4 miles (1,800′)
  • Min/Max Elevation: 5,300′-6,500′
  • Average Elevation: 5,700′ Marathon
  • Terrain: Marathon: 22mi dirt singletrack, 3mi rocky singletrack, 2mi dirt road; Half Marathon: 13.0mi dirt singletrack, 0.5mi dirt road
  • Fauna: Deer, abert squirrel, golden eagle
  • Registration Cap: 400 Marathon / 400 Half
  • Time Allowance: 9 hours Marathon / 6 hours Half Marathon
  • Dates: October 18 (Marathon) / October 19 (Half Marathon), 2025

Near-Live Runner Tracking

If you have friends or family who are interested in following your progress on race day, MARATHON-ONLY aid station splits will be published in near-real-time (generally within 5 minutes) on OpenSplitTime.org (OST).

The OST tracking site and runner bib numbers are live on the site. You can subscribe to free near-live updates on specific runners:

  1. Visit OpenSplitTime and sign up for an account
  2. Log in
  3. Find your runner and click their name
  4. Locate the box that says “Notify me” and click the email or text button

We will also be providing limited race coverage through our Social Media accounts.