Blue Sky Trail Marathon & Half Marathon 2027

16.10 – 17.10.2027Fort Collins (United States)Dates to be confirmed

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2 courses · 22.2–43 km13.8–26.7 mi · up to 3’500 m D+up to 11’483 ft D+

At a glance

Blue Sky Trail Marathon & Half Marathon 2027 is expected from Saturday 16 to Sunday 17 October 2027 in Fort Collins (Colorado, United States), date to be confirmed by the organiser. Two distances to choose from: 22.2 and 43 km.

Longest course: Blue Sky Trail Marathon, 43 km with 3’500 m D+ (81 m per km: very steep terrain). Terrain: 98% trail and 1% forest track. Terrain data: © OpenStreetMap contributors.

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Taking place on the trails between Horsetooth Mountain Park and the Devil's Backbone Open Space, the Blue Sky courses take you on a north-south tour of the easternmost hogbacks of Northern Colorado's…

From the organiser

2 courses

22.2km13.8mi
1’800 m D+5’906 ft D+
440 m D-1’444 ft D-
avg 8%
Blue Sky Trail Half Marathon
No index
GPX
43km26.7mi
3’500 m D+11’483 ft D+
1’098 m D-3’602 ft D-
avg 8%
Blue Sky Trail Marathon
No index
GPX

Course analysis

43 km26.7 mi3’500 m D+11’483 ft D+

78effort kmⓘ43 km on the map · feels like 78 km26.7 mi on the map · feels like 78 km

D+: 3’500 m11’483 ft
D−: 1’098 m3’602 ft
Max alt.: 1’990 m6’529 ft
Steepest: 7%

Segments

Elevation profile: Blue Sky Trail Marathon

1’633 m – 1’990 m5’358 ft – 6’529 ft

Race plan

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Where to stay

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