About This Race
The Lumberjack 100 has been testing runners on the trails of Washington's Olympic Peninsula since 2010, making it one of the Pacific Northwest's most established ultra endurance events. Set in the scenic Uplands of Port Gamble, this challenging loop course offers three distance options across terrain that blends single track trails with dirt roads. While the race description mentions York, PA in the registration data, the actual location and course details point to Washington state's forested landscape. The race's loop format allows for strategic pacing and crew support, with runners completing multiple circuits of a 12.5-mile course that accumulates significant elevation gain through rolling terrain. With 15 years of history and consistent annual editions, the Lumberjack has developed a reputation for solid organization and comprehensive aid station support. The 30-hour time limit provides a reasonable challenge for experienced ultra runners while remaining accessible to those stepping up in distance. The mix of terrain keeps the course engaging without overwhelming technical difficulty, though the cumulative elevation gain over eight loops demands respect and proper pacing strategies.
The course consists of a 12.5-mile loop repeated multiple times depending on distance choice, with approximately 1,500 feet of elevation gain per loop. The terrain splits roughly 75% single track trails and 25% dirt roads, winding through the forested Uplands area. While there are no major climbs, the course features continuous rolling terrain with persistent ups and downs that accumulate significant fatigue over the longer distances.
Three fully stocked aid stations per loop provide comprehensive support, with the start/finish area serving as the primary crew access point. The course is well-marked with reflective tape and arrows for safe navigation during night hours, which becomes crucial for runners tackling the longer distances within the 30-hour time limit.
Elevation Profile
The course gains 12,001 ft over 100 miles, with the steepest section between mile 58–mile 58.
Course Map
Route shown is approximate and for illustration purposes.
Aid Stations
3 stations along the course
Start/Finish
water, electrolyte, food
Primary crew access and drop bag location
Aid Station 1
water, electrolyte, food
Fully stocked aid station on course
Aid Station 2
water, electrolyte, food
Fully stocked aid station on course
Practical Info
Early June weather in western Washington typically features mild temperatures with potential for rain, requiring layers and weather protection.
SEA - Seattle-Tacoma International Airport
Port Gamble and nearby Poulsbo offer limited lodging options; Seattle area provides more extensive accommodation with a one-hour drive to the race venue.
Best For
Notable Features
The Lumberjack's loop format creates unique strategic opportunities for runners and crews, allowing for precise pacing adjustments and gear changes at regular intervals. The three distance options on the same course foster a community atmosphere where runners of different abilities share the trails and aid stations. With 15 years of consistent organization and the Pacific Northwest's reputation for trail running hospitality, this race has developed into a regional favorite among the ultra community.
Prepare for This Race
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