THE 100K IS NOT AT ALL A BEGINNER LEVEL ULTRAMARATHON
This life-changing point-to-point 100K race features technical trails, long, steep climbs, and some very remote places. The course has approximately 16,500 feet of elevation gain accompanied by over 19,000 feet of descent. It approximately 80% singletrack, much of which is quite technical. As with the other events in the Roadless Area, you will travel up to 11+ miles between aid stations. In keeping with the wilderness-like setting of the event, there will be minimal course markings. For many of you, this will be the hardest race you will have ever done. Knowing and fully understanding this is of the highest importance.
BEFORE REGISTERING FOR THIS EVENT, PLEASE NOTE THAT THERE IS NO SHUTTLE SERVICE AVAILABLE IN THIS REMOTE AREA. RUNNERS & THEIR CREW WILL BE RESPONSIBLE FOR TRANSPORTATION TO/FROM WRIGHT MEADOW & CISPUS LEARNING CENTER. PLEASE BE AWARE OF THIS AND PLAN FOR THIS BEFORE REGISTERING FOR THIS EVENT.
We will provide a rideshare spreadsheet to help facilitate transportation coordination, but again, there is no formal shuttle service. Thank you for your understanding.
Here is an interactive map of the 100K course on Caltopo:
100K Race by the Numbers
100K Course Information:
Click here to see course details, including vert, mileage, cutoffs, crew access, and course segment details:
Click here to download the course GPX file:
Click here to see course details, including vert, mileage, and course segment details:
100K Logistics:
We are still unable to find a shuttle service willing to serve this remote area. For runners with crew/pacers, you will need to arrange logistics for your runner, including transportation to/from Cispus Learning Center.
Key Times & Dates
Friday, September 4, 2026 (Cispus Learning Center):
8:00 AM-4:00 PM: Runner check-in, race packet pick-up, and drop bag collection begins
Friday, September 4, 2026 (Wright Meadow Aid Station Camping Area):
7:30 PM: MANDATORY Dark Divide race overview
Saturday, September 5, 2026 (Wright Meadow Aid Station Camping Area)
4:45 AM: Race course briefing
5:00 AM: The Dark Divide 100K begins!
Saturday, September 5, 2026
Continuation of the Dark Divide 100K
Sunday, September 6, 2026 (Cispus Learning Center)
5:00 AM: Final finish line cut-off
5:00 PM: All 100K runners must be out of their campsite
Volunteer Service Requirements
There is a volunteer service requirement for the 2025 Dark Divide 100k. Recreation in our wild spaces and natural areas can and does have significant and sometimes damaging impacts on the places we explore and love. These impacts have become greatly magnified by the growth of our sport, the growth of outdoor recreation in general, and the ever present and often careless influence of social media. Please complete 8 hours of volunteer service in one of the activities below:
Habitat restoration (e.g. native plantings, invasive species removal, watershed enhancement projects, natural area clean-up).
Trail building, repair, or restoration.
Volunteer activities that enable inclusivity and access to outdoor activities and opportunities for underrepresented, marginalized, groups and/or children.
YOUR EIGHT (8) SERVICE HOURS MUST BE COMPLETED AND DOCUMENTATION SUBMITTED BY CHECK-IN FOR THE 2026 RACE!
Thank you for reading this. Thank you for doing your part in making the Dark Divide 100k a safe, welcoming, inclusive, and rewarding experience for yourself, other runners, volunteers, search & rescue, and race staff. Thank you for doing your part to help preserve and protect our wild spaces, and helping others to do the same.
