Colorado · 50K
Sawatch Ascent
Sawatch Ascent is a 50K event held in Nathrop, Colorado. It was last held on September 27, 2026 and is usually run in September; the next date hasn't been announced yet. About 1,400 runners take part across all distances.
- Usually held
- September
- Location
- Nathrop, CO
- Field size
- ~1,400 runners
Race details
- Last held
- September 27, 2026
- Usually held in
- September
- Location
- Nathrop, Colorado
- Distances
- 50K
- Field size
- About 1,400 runners
- Course
- 7000 ft gain
- Registration
- runsignup.com
- Official website
- sawatchascent.com
Registration, course & weather
- Registration status
- Registration status as last checked September 22, 2026: open
- Course profile
- Lollipop course (a loop with an out-and-back section); Mostly trail, some road; 7000 ft gain, 7000 ft loss (estimated from third-party elevation data)
About the 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…
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Sawatch Ascent: common questions
- When is the Sawatch Ascent?
- The next date hasn't been announced in the listing yet. The race is usually held in September. Check the organiser's website for the official date.
- Where is the Sawatch Ascent held?
- In Nathrop, Colorado.
- What distances does the Sawatch Ascent offer?
- 50K.
- How many people run the Sawatch Ascent?
- About 1,400 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Sawatch Ascent?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Sawatch Ascent?
- Registration status as last checked September 22, 2026: open. $180 (from runsignup.com, checked September 22, 2026).
- What is the course like at the Sawatch Ascent?
- Lollipop course (a loop with an out-and-back section); Mostly trail, some road; 7000 ft gain, 7000 ft loss (estimated from third-party elevation data).
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