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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

Explore the Course
Interactive map with aid stations, elevation & weather
DirectionsExplore
DeadlineAugust 20, 2026
This event took place on September 05, 2026

Nearby races

Other trail races within 76 miles

Course map for Dark Divide 100 Mile Endurance Run
Qualifier Req
Service Req

Dark Divide 100 Mile Endurance Run

100 Mile
Randle, WA, US
Sep 4, 2026
100.17 miles
26,570 ft gain
Loop
Crew
Pacers
Dropbags
Course map for Backcountry Rise 50K
Qualifier Req

Backcountry Rise 50K

50K
Toutle, WA, US
Aug 29, 2026
30.88 miles
10,390 ft gain
Loop
Crew
Dropbags
23 mi away
Course map for Bigfoot 200 Endurance Run

Bigfoot 200 Endurance Run

200 Mile
Randle, WA, US
Aug 14, 2026
200.02 miles
44,080 ft gain
Point to Point
Crew
Pacers
Dropbags
27 mi away
Course map for Thunder River 25K

Thunder River 25K

25K
Cascade Locks, OR, US
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15.72 miles
2,300 ft gain
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Crew
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Course map for Gorge Waterfalls 100K

Gorge Waterfalls 100K

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62 miles
11,000 ft gain
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Crew
Dropbags
54 mi away
Course map for Cascade Crest 100
Lottery
Qualifier Req
Service Req

Cascade Crest 100

100 Mile
Easton, WA, US
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100 miles
23,000 ft gain
Loop
Crew
Pacers
Dropbags
64 mi away
Course map for Yakima Skyline 25K

Yakima Skyline 25K

25K
Ellensburg, WA, US
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15.53 miles
4,810 ft gain
Out and Back
71 mi away
Course map for Tiger Claw 50k

Tiger Claw 50k

50K
Issaquah, WA, US
May 9, 2026
31.07 miles
8,620 ft gain
Loop
Crew
Dropbags
76 mi away
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

Dark Divide 100K is a point-to-point trail race in Randle, WA, United States, held on September 05, 2026. The course covers 60.7 miles, climbs 16,590 ft, and has a 24h cutoff.

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
Explore Course
Course map for Dark Divide 100K
Launch Course Explorer

Aid Stations & Cutoffs

LocationMileElevationCutoffCrewPacersDrop bags
Wright Meadow
Start
0.03,727 ft—
Lewis River
Aid Station
5.42,021 ft—
Drop Bags
Quartz Butte
Aid Station
14.23,320 ft—
Summit Prairie
Aid Station
20.44,570 ft
8h1:00 PM
Drop Bags
Sunrise Peak
Aid Station
31.84,521 ft—
Juniper Ridge
Aid Station
39.63,642 ft—
Pacers
Yellowjacket Creek
Aid Station
47.51,329 ft
18h11:00 PM
Pacers
Drop Bags
Burley Mountain Fire Lookout
Aid Station
54.35,315 ft—
Cispus Learning Center
Finish
60.71,299 ft
24h5:00 AM +1

Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.

Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.

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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Registration closed