Blue Sky Trail Marathon & Half Marathon is a 42.0 km ultra trail of Blue Sky Trail Marathon & Half 2025 in Fort Collins, United States. The race starts on October 19, 2025. The course climbs 1100 m+ and descends 1011 m−, between a low point of 1628 m and a high point of 1980 m. By gradient, 31% of the distance is uphill, 29% downhill and 40% flat. The longest climb runs 2.6 km at an average 5.5% grade (144 m of vertical). The longest descent runs 2.6 km at 5.6% (144 m of vertical). Surface: 67% trail, 9% road, and 6% extreme. Flat-equivalent effort: 49.7 FlatKM.
This page has the interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for Blue Sky Trail Marathon & Half Marathon.
Other distances of Blue Sky Trail Marathon & Half 2025Blue Sky Trail Marathon & Half Half Marathon (22.0 km)
