Dark Divide 100M

Dark Divide 100M

Extreme

100

M

|

Friday, September 5, 2025 |

Sep 5, 2025

WA

A hundred miles of raw wilderness challenge

A hundred miles of raw wilderness challenge

Overview

The Dark Divide 100 Mile Endurance Run isn’t just another ultramarathon. It’s a test of grit, wilderness skill, and unshakable willpower. With steep ascents, rocky technical singletrack, and vast stretches of remote terrain, this race asks everything of you—and then some.

Runners will climb and descend over 26,000ft as they navigate wild ridgelines, deep forests, and long miles between aid stations. The Dark Divide is not for beginners—it’s a brutal, beautiful, bucket-list challenge that will push you to your edge and reward you with jaw-dropping views, camaraderie, and the thrill of finishing one of the hardest 100 milers out there.

9
days
1
hours
4
minutes
14
seconds

Friday, September 5, 2025

Registration

Opens

Jan 1, 2025, 12:00 AM

Closes

Aug 31, 2025, 11:59 PM

Registration Fee

$300

Trail Sisters Approved logo

Hard Rock Qualifier

Trail Sisters Approved logo

UTMB Index Qualifier

Official race details:
This race is Trail Mix Fund eligible!
Trail Sisters Approved logo

The Trail Mix Fund helps remove barriers in trail racing by covering race entry fees for under-served and under-represented runners, creating a more diverse and welcoming start line.

Course

Distance:

100

M

Course type:

Unknown

Elevation gain:

26,000 ft

Elevation loss:

26,000 ft

Max altitude:

6,080 ft

Start time:

Sep 5, 2025

5:00 AM

Cutoff time:

100M, 48HR overall, final cutoff at 5:00AM Sunday September 7, 2025

Course Description

The Dark Divide course is a rugged journey through some of Washington’s most dramatic backcountry. Expect endless climbs, big descents, exposed ridgelines, and over 75% technical singletrack. You’ll travel through the Roadless Area where aid stations are up to 16 miles apart and where course markings are minimal to preserve the wilderness feel. This is a course where navigation matters, your legs will scream, and your heart will soar.

  • Stunning views of the Dark Divide Wilderness

  • Remote alpine ridges with vast horizons

  • Long, steep climbs that test every ounce of endurance

  • Minimal course markings for true backcountry racing

Logistics

  • Start & Finish at Cispus Learning Center Pavilion (near Randle, WA)

  • Accessible via US-12; approx. 2 hrs from Portland, 2.5 hrs from Seattle

  • Parking on-site at Cispus Learning Center Pavilion

  • Bunkhouses available for reservation at Cispus Learning Center for $45; camping allowed on-site; nearby RV options

Parking
Passes Required

Aid Stations

Aid stations are spread far apart, some as long as 16 miles. They provide standard ultramarathon fuel, hydration, and medical support, though the remoteness makes every stop vital.

See full details: Dark Divide 100 Aid Stations

Race Requirements

This race requires advanced ultramarathon experience and wilderness competency. Runners must be able to handle long stretches without aid, technical terrain, steep climbs, and self-navigation.


Trail Work

Runners must complete 8 hours of trail or habitat restoration, or other qualified volunteer service, and submit documentation before check-in.

Qualifying Races

To register, runners must show verifiable completion of specific challenging ultras, including a 100M with 15,000ft gain, a 100K with 10,000ft gain, or two 50M with 7,000ft gain. Alternative discretionary approval may be granted by Wonderland Running with GPX verification.

Mandatory Gear

Runners should carry gear suitable for wilderness survival and long stretches without aid.

  • Headlamp with extra batteries

  • Rain gear and thermal layer

  • Navigation tools (map, compass, GPS)

  • Adequate hydration system

  • Emergency nutrition and supplies

Policies

  • No refunds (check UltraSignup for details)

  • Transfers allowed under specific conditions

  • Event operates under US Forest Service Special Use Permit

  • Mandatory pre-race check-in and safety requirements

Event Details

Drop Bags

Drop bags may be checked in during packet pick-up on Thursday September 4, 2025 from 3:00PM to 6:00PM. Bags left behind after the race will not be mailed back, so plan accordingly.

Bib Pick-up

Bib pick-up takes place at Cispus Learning Center on Thursday September 4, 2025 from 3:00PM to 6:00PM. Race morning check-in is also available Friday September 5, 2025 from 4:00AM to 4:30AM.

Schedule

Friday, September 5, 2025

5:00AM – Runner check-in at Cispus Learning Center Pavilion
6:00AM – 100M race start
All day – Aid stations open and crew access at designated points

Saturday, September 6, 2025

5:00AM – Runner check-in for 100K
6:00AM – 100K race start
All day – Aid stations and crew support along the course

Sunday, September 7, 2025

6:00AM – Runner check-in for 50K and 14M Fun Run
7:00AM – 50K race start
8:00AM – 14M Fun Run start
12:00PM – Food and celebration at the Pavilion
7:00PM – Final 50K cutoff
8:00PM – Closing ceremony and volunteer celebration

Cancelations & Deferrals

Please refer to Wonderland Running's website for cancelation policies.

Dogs

Dogs are not permitted on the race course or at aid stations for safety reasons.

Crew, Pacers & Spectators

Crew and visitors are welcome at designated aid stations and at the Cispus Learning Center start/finish area. Due to the remoteness of many aid stations, travel times can exceed two hours on forest service roads. Crews must follow all rules and respect wilderness restrictions.

Volunteers

Volunteers are encouraged to help with aid stations, registration, and festival logistics. Interested parties can sign up at the race website.

Volunteer opportunities include:

  • Aid station support

  • Check-in assistance

  • Course marshaling

  • Setup and cleanup

Please reach out to wonderland.running.pnw@gmail.com for more information.

Charity & Beneficiary

Proceeds from the Dark Divide Trail Races benefit Silver Star Search & Rescue, All Play/Elementary Facilitation Program at Cispus Learning Center, and the White Pass Scenic Byway nonprofit. Learn more at https://www.wonderlandrunning.com.

Land Acknowledgement

The Dark Divide Trail Races take place on the ancestral lands of the Cowlitz (Mishalpam, Táytnapam, Sλpúlmx), Xwáłxwaypam (Klikitat), and Yakama peoples, who have stewarded this region for millennia. We honor and respect their enduring connection to these lands.

About

Wonderland Running

Wonderland Running is a quirky, community-first trail race organization based in the Pacific Northwest, bringing creativity, inclusivity, and adventure to every event. Officially founded in 2019, but with roots in DIY group runs long before that, Wonderland Running was born out of founder Sean Harrasser’s deep love for wild places and his solo, unsupported circumnavigation of the Wonderland Trail around Mount Rainier. Since then, the organization has evolved into a passionate crew of runners, mischief-makers, and outdoor enthusiasts who are dedicated to crafting memorable race experiences in truly magical settings.

The Wonderland Running team is made up of ultrarunners, artists, race directors, educators, tech wizards, and outdoor lovers who embrace the spirit of trail running in all its unpredictable, joyful, and humbling glory. With job titles like Executive Bad Hill Idea Conspirator and Master Hill Technologist, their ethos is as much about fun and self-expression as it is about fitness and finish lines.

Based in Oregon, with team members spread across Redmond, Bend, Portland, and Hillsboro, Wonderland Running is at the heart of the PNW trail scene. Whether you’re a seasoned ultrarunner or showing up to your first trail race, you’ll find a warm welcome, a clever hill pun, and an unforgettable experience waiting at the start line.

For those looking to connect with trail running beyond the stopwatch, Wonderland Running offers something rare: a race company that balances soulful exploration, creative expression, and genuine community.

Disclaimer

We make every effort to provide accurate and up-to-date information on Kåduka, but details may change. Please always confirm the latest information on the official race website. See something that needs correcting? We’d love to hear from you! Send us a note at feedback@kaduka.app

We make every effort to provide accurate and up-to-date information on Kåduka, but details may change. Please always confirm the latest information on the official race website. See something that needs correcting? We’d love to hear from you! Send us a note at feedback@kaduka.app

© 2025 Kåduka, LLC. All rights reserved. Kåduka and the Kåduka logo are trademarks of Kåduka, LLC. All other trademarks, logos, and brand names are the property of their respective owners.

Handcrafted with

in the beautiful PNW

© 2025 Kåduka, LLC. All rights reserved. Kåduka and the Kåduka logo are trademarks of Kåduka, LLC. All other trademarks, logos, and brand names are the property of their respective owners.

Handcrafted with

in the beautiful PNW