Castle Peak 100K

This event meets ATRA's Event Standards.

ATRA race member


Aug 22, 2020 at 5:00 AM

Castle Peak 100K

Donner Pass Road, Exit 184

Truckee CA, 96161


Event Facebook page

Entry Fee $205
(Lowest or Early Registration)

Entry Fee 2 $225
(Highest or Late Registration)

Prize Money: no


  • 100K

Type: Ultra

Participant Limit: 299

Starting Elevation: 6000

High Point: 8900

Percent of the course on un-paved trails: 95%

First Year of the Event: 2015

Men's Record: 11:26:41 (2018)

Masters Men Record: 12:00:16 (2019)

Women's Record: 13:02:33 (2019)

Masters Women Record: 14:55:07 (2019)


The Castle Peak 100k is arguably one of the most difficult trail races in the country. Masked by it’s spectacular beauty, this is a true mountain race unlike any other on the ultra-running circuit. A rare point-to-point course offering genuine support with fully stocked Aid Stations that is staffed by Truckee/Tahoe locals and experienced ultra-running volunteers. The race starts near the historic Emigrant Trail in Truckee, California at the Prosser Family Campground before ascending (and descending) over 16,000′ at an average elevation of 7,300′ above sea level. The course travels over roughly 95% of demanding single-track trails, while journeying through some of the most dramatic scenery and vistas the region has to offer.

The course will take you through the Tahoe National Forest, Tahoe Donner, and Euer Valley, prior to climbing Hawk’s Peak. Traversing along the Donner Lake Rim Trail you’ll enter the hidden beauty of the Warren Lake Loop before summiting Basin*, Castle & Andesite Peaks. You’ll then enter the notorious Hole in the Ground trail, exiting into the famous Royal Gorge Cross Country Resort, then ascending and running along Razorback Ridge. Enter the infamous Palisades!** By way of Crow’s Nest, this 1.25 mile section of scrambling, requires true grit. After your test of courage, you’ll arrive at the summit of Mt. Lincoln and Judah, before your final descent into the finish at Sugar Bowl Resort.



Event Dates

Held on Aug 22, 2020

Held on Aug 24, 2019

Held on Aug 25, 2018

Held on Aug 26, 2017

Held on Aug 27, 2016

Held on Aug 29, 2015

Event Results

View 2019 Results

View 2018 Results

View 2017 Results

View 2016 Results

View 2015 Results