Sawatch Ascent

A classic, high-alpine, vert-heavy Colorado 50k! Get some miles on the Colorado Trail and run all the way to 13,150' feet in elevation! Starting and finishing at the base of Mount Princeton, runners are treated to panoramic views of the Sawatch Range and the gorgeous Arkansas River Valley. The race runs in a large lollipop and is essentially one long 7000' foot climb and one long 7000' descent. The beginning and end have a mix of dirt and paved roads, but the middle is 25 miles of uninterrupted singletrack, including 12 miles on the Colorado Trail. Yet, despite the amount of vert this course is surprisingly runnable, especially for a runner with mountain experience. Add in the changing aspen leaves and the (usually) perfect fall weather and you've got yourself one hell of end-of-the-season race. As an added bonus, the course shares some similarities with the High Lonesome 100 course and is put on by the same folks at Freestone Endurance.

Upcoming Races

Sep 27 2026
50 KM
7,000 7,000 ft.
Lollipop
10:00 Cutoff
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts

Results

Date Finishers Top Result (F) Top Result (M) Top Result (X)
09/28/25 169 5:35:08 4:41:18 6:26:30
09/29/24 176 6:07:05 4:58:42
09/24/23 121 5:42:42 5:45:39 7:25:53
09/25/22 80 6:05:41 5:10:32
09/26/21 68 5:29:46 5:37:36

Weekly Newsletter

A roundup of the week's content and most recent race results. Sent once a week on Thursday.

Recent Results

Woodbooger 100
Norton, VA - 31 finishers
50 KM
Broken Arrow Skyrace
Olympic Valley, CA - 552 finishers
46 KM
New River Gorge Trail Festival
Fayetteville, WV - 111 finishers
50 KM
Catamount Ultra
Stowe, VT - 170 finishers
50 KM
Bears Ears Ultra
Monticello, UT - 116 finishers
50 Miles | 50 KM
Alpine Solstice
Bend, OR - 60 finishers
55 KM
Wicked Worm
Grand Rapids, MI - 33 finishers
12 Hours | 6 Hours
The Longest Light
Spokane, WA - 2 finishers
100 KM
Tahoe 200 Endurance Run
Homewood, CA - 182 finishers
200 Miles
White Pine Solstice Runs
Tooele, UT - 13 finishers
55 KM
View All Results