2027 Blue Sky Trail Marathon & Half Marathon
Blue Sky Trail Marathon & Half offers a Colorado Front Range trail running experience.
Race Date
Oct 15, 2027
Location
Fort Collins, CO
Quick facts
- Date
- Friday, October 15, 2027
- Location
- Fort Collins, Colorado
- Distance
- Half marathon (13.1 mi)
- Course
- Point to Point
- Terrain
- Mixed
- USATF certified
- Not listed
- Finishers on record
- 1,296
Highlights
Good For
Atmosphere
Course
The Experience
Fort Collins's original trail marathon and half marathon winds through the scenic hogbacks of Northern Colorado's Front Range. The course navigates between Horsetooth Mountain Park and Devil's Backbone Open Space, offering a challenging yet rewarding experience for both seasoned trail runners and newcomers.
The marathon features a substantial 3,500 feet of elevation gain and loss, while the half marathon presents 1,800 feet of climbing. Runners will traverse 100% dirt, with 90% of the route consisting of Colorado singletrack. The terrain varies from smooth dirt paths to technical rock gardens, with brief sections on dirt roads and gravel bike paths, all set against the backdrop of the distinctive redstone hardpack of the Blue Sky Trail.
With a generous nine-hour cut-off, the event is designed to be accessible. Participants can expect to see local wildlife like deer and golden eagles. Post-race, enjoy a popular barbecue and sponsor giveaways, making for a complete trail running celebration.
Race-provided description
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Logistics
Race Day
Friday, October 15, 2027
Start Time
TBA
Start Location
4780 W County Rd 38e, Fort Collins, CO, 80526
Course Info
Course Type
Point to Point
Terrain
mixed
Scenery
Mountain, Park
Surface
Dirt Trail, Paved
Difficulty
Hilly
Quality Score
Standout627 years running
~263 finishers a year
growing or steady
11% returning runners
5 timing sources · 15 photos
runners from 16 states
winner 1:37:13
typical high 67°F
Historical Finish Times
How 1,296 finishers actually crossed the line across 7 years.
Most recent
2026
Total finishers
1,296
Median time
2:46:59
Latest turnout
263
States
31
Turnout by year
2008–2026
Hover the histogram to inspect specific finish times.
Frequently asked
When is the 2027 Blue Sky Trail Marathon & Half Marathon?
The 2027 Blue Sky Trail Marathon & Half Marathon is held on Friday, October 15, 2027.
Where does the 2027 Blue Sky Trail Marathon & Half Marathon take place?
It takes place in Fort Collins, Colorado.
What distances does the 2027 Blue Sky Trail Marathon & Half Marathon offer?
The half marathon (13.1 miles).
Is the 2027 Blue Sky Trail Marathon & Half Marathon course flat and good for a PR?
The 2027 Blue Sky Trail Marathon & Half Marathon is a hilly, point to point course.
How many people run the 2027 Blue Sky Trail Marathon & Half Marathon?
HalfRuns has finish records for 1,296 runners who have completed the 2027 Blue Sky Trail Marathon & Half Marathon.
HalfRuns editorial — independent, no paid placement.
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