Races
Olympic Mountains 100k
Olympic Peninsula. Rain forest to high divide. Fourteen thousand feet. August mist on the ridges.
62 mi+23,606 ft-23,615 ft21 hours1,102 ft to 5,873 fttech 5/106 stationsnew WSER qualifierOlympic NPWSER qualifierAugust
Distance62 mi
Gain+23,606 ft
Loss-23,615 ft
Altitude1,102 ft to 5,873 ft
Technicality5/10
Air40°F to 75°F
- Start2,667 ft
- High5,760 ft
- Low1,122 ft
- Finish2,657 ft
- Washington at mile 0.0
- Olympic Mountains 100k mile 12 at mile 12, cutoff 4.2 hours
- Olympic Mountains 100k mile 25 at mile 25, cutoff 8.4 hours
- Olympic Mountains 100k mile 37 at mile 37, cutoff 12.6 hours
- Olympic Mountains 100k mile 50 at mile 50, cutoff 16.8 hours
- Finish Washington at mile 62, cutoff 21 hours
Field, 2026 · 4-year sampleresults
Starters115
Finish rate72%
Median16:47
Sub-2483
Geometrycourse math
Steepest drop1,490 ft-14.5% over 1.9 mi
Night miles16 misunset near 19:00 local
Course records
Men2:28:40Nathanael Bate
Women3:02:05Stephanie Malkowski
The cruxHigh Divide traverse in Olympic rain forest (near mile 40)
Course DNA
The Course
Olympic Mountains 100k runs 100 km through Washington. +23,606 ft gain and -23,615 ft loss. Surfaces skew 90% trail / 10% forest road. High Divide traverse in Olympic rain forest. High point near 5,873 ft. Low near 1,102 ft. August temps run 40°F to 75°F. The course rewards patience early and punishes rushed descents after mile 31.
The Work
Train for 23,606 feet of climbing across 100 km. Back-to-back long runs on trail. Practice power-hiking grades above 15 percent. 21 hours total means limited margin: rehearse fueling every 45 to 60 minutes and downhill eccentric work weekly. Technicality 5/10. Build a block that simulates the crux near mile 40.
Kit
August in Washington: plan for 40°F to 75°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 21 hours pushes past dark. Poles help on sustained climbs above mile 16. Vest capacity for 2 liters minimum. Shoes matched to 90% trail: lugs for mud, rock plate if the course turns technical after mile 31.
Race Day
Hold effort through mile 16. The field often splits on the first big climb after mile 31. High Divide traverse in Olympic rain forest near mile 40 is where time is won or lost. Walk the steep pinches. Run the flats and gentle downhills. Crew at major aids: socks, calories, ice if hot. Transitions under 5 minutes when possible. Final third is 21 miles of fatigue management. Finish with reserve for the last descent.
Results
Olympic Mountains 100k finish lines.
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Sources (2)
- Field stats (2026): https://ultrasignup.com/results_event.aspx?did=131634
- Course record (M): https://ultrasignup.com/results_event.aspx?did=101994