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© 2026 Trailrace.co. All rights reserved.

Built on bad decisions in Boulder, CO.

Dark Divide 100K

Basic Listing
  1. Wonderland Running
  2. 2026 Edition

A net-downhill point-to-point through the best of the Dark Divide's alpine terrain

Directions
DeadlineAugust 20, 2026
Register

Nearby races

Other trail races within 77 miles

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26,570 ft gain
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All trail races in Washington→
September 05, 2026
Saturday 5:00am PDT start
Randle, WA
United States
60.7 miles
Point to Point Course
16,590 ft
Elevation Gain
Open Registration
No lottery
Service Requirement
Trail Work or Volunteering
No Qualifier
No qualifier race required
Very Challenging
Experienced ultrarunners
Links
WebsiteInstagramFacebook
2021
Established

What Makes It Great

A point-to-point journey from remote Wright Meadow to the finish at Cispus Learning Center, covering many of the most spectacular segments of the Dark Divide in a single long day. The 100K features 16,500 feet of climbing and over 19,000 feet of descent across 61 miles of mostly technical singletrack. Runners travel through alpine ridges, waterfalls, old-growth forest, and exposed viewscapes of the surrounding Cascade peaks. There is no shuttle service to the Wright Meadow start; runners and crew must arrange their own transportation to this remote trailhead.

Difficulty

Advanced
8/10

Experienced ultrarunners

Technical Terrain
Steep Climbing
Technical Descent
Remote Terrain
Night Running
Variable Weather

Race Highlights

Inaugural 2025 course
Brand-new for 2025, covering the most iconic Dark Divide ridgeline segments in a point-to-point format
Net downhill point-to-point
19,000+ ft of descent over 61 miles from remote Wright Meadow to the Cispus finish
Panoramic Cascade views
Miles of exposed ridge running with unobstructed sightlines to surrounding glaciated volcanoes

Dark Divide 100K

Randle, WA, United StatesSeptember 05, 2026

September 05, 2026
Course map for Dark Divide 100K
DistDistance60.7 mi
GainElevation Gain16,590 ft
LimitCutoff24 h
Steep ClimbingTechnical DescentRemote TerrainNight RunningVariable Weather

Entry Timeline

Registration DeadlineAugust 20, 2026
Service Submission DeadlineSeptember 04, 2026
Race DaySeptember 05, 2026

Lottery

This event uses open registration - no lottery entry required.

Qualifier

This event does not require a qualifier for entry.

Service Requirement

8 hrsTrail Work
or
8 hrsVolunteering

Same 8-hour service requirement as the 100 Miler. Documentation submitted by check-in.

Submission deadline: September 04, 2026

Terrain

Surface Types
Singletrack80%
Unknown20%
60.7 mi
Distance
Point to Point
Route
24h
Cutoff Time
3,904 ft
Average Elevation
16,590 ft
Total Ascent
19,430 ft
Total Descent
5,879 ft
High Point
1,293 ft
Low Point
Course map
Launch Course Explorer

Aid Stations

LocationMileElevation
Wright Meadow
Start
0.03,727 ft
Lewis River
Aid Station
5.42,021 ft
Quartz Butte
Aid Station
14.23,320 ft
Summit Prairie
Aid Station
20.44,570 ft
Sunrise Peak
Aid Station
31.84,521 ft
Juniper Ridge
Aid Station
39.63,642 ft
Yellowjacket Creek
Aid Station
47.51,329 ft
Burley Mountain Fire Lookout
Aid Station
54.35,315 ft
Cispus Learning Center
Finish
60.71,299 ft

Sign in to see cutoffs, crew access, drop bags, and services for every aid station.

No Dogs Allowed
On-Site Camping Available

Bunkhouse beds at Cispus Learning Center available for $43 via Ultrasignup at registration. Car, tent, and RV camping also available nearby. Camping opens Thursday at noon for 100-mile runners, Saturday for 50K and Fun Run participants.

Crew Access Points

Pacer Rules

  • Pacers may join at Juniper Ridge (mile 39.7) and may be swapped at Yellowjacket Creek (mile 47.5).

Crew Rules

  • Crew access at Wright Meadow (start, mile 0), Lewis River (mile 5.4), Summit Prairie (mile 20.4), Yellowjacket Creek (mile 47.5), and Cispus Learning Center (finish). No shuttle provided — runner and crew must arrange their own transportation to/from Wright Meadow and Cispus Learning Center.
Weather
Rapid Weather Changes

September in the Washington Cascades can bring rain and rapid temperature drops on exposed ridgelines

Cold/Hypothermia Risk

Mandatory lighting required from the 5 AM start through sunrise

Gear Rules

Required Gear

No required gear specified

Recommended Gear

No recommended gear specified

Race reports from other Dark Divide Trail Races events

Crossing the Dark Divide: Race RecapDark Divide 100 Mile Endurance Run
By Jud Heugel MD (The Balanced Athlete) • 2025
2025 Dark Divide 100 Race ReportDark Divide 100 Mile Endurance Run
By Jon Eisen • 2025
Dark Divide 50k Race ReportDark Divide 100 Mile Endurance Run
By Joe McConaughy (The Stringbean) • 2021

Reviews

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Register•September 05, 2026