100 kmTrail🇺🇸 Willamette Pass, United States

Waldo 100K

Saturday, 7 August 2027In 9 months · Start 04:00

A classic Oregon Cascades ultra from Willamette Pass ski area on forest single-track around the Waldo Lake wilderness, with three big summits including Fuji Mountain and Maiden Peak. A long-time Western States qualifier.

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Facts checked 26 Oct 2026 against waldo100k.org, waldo100k.org, waldo100k.org.

Elevation gain

3,350 m

Mountain · ↓ 3,350 m

Highest point

2,383 m

above sea level

Temp at start

13°C

Peaks around 18°C

Entry fee

Check site

Lottery

Finishers

130

typical year

Course

Loop

Cut-off: check site

Getting thereFly into RDM (Redmond), about 102 km from the start

Plan your trip to Willamette Pass

Race weekends book up early. Searches are set for the race dates.

Hotels near the start lineFri 6 Aug – Sun 8 Aug · 2 nights · closest to the start firstSee hotels on Booking.com Flights to Willamette PassArrive Thu 5 Aug, fly home Mon 9 AugSee flights on Google Flights

Things to do in Willamette PassKlook Mobile data in United StatesAiralo Airport transfer from RDMKiwitaxi Rent a carEconomybookings

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Course map

A detailed route is not available for this race yet. The marker shows the race location.

Elevation profile

Mountain: about 3,350 m of climbing and 3,350 m of descent. A detailed profile isn’t available for this race yet.

Race-day weather

At start

13°C

Peak during race

18°C

Humidity

62%

Chance of rain

Wind

5 km/h

7 August in past years

Historical averages for 7 August ±3 days, 2016–2025, from 04:00 for 5 hours (70 days sampled). Source: Open-Meteo / ERA5.

Finish times by age group

No data yet. We’re collecting age-group results race by race.

Runner reviews

What time could you run here?Adjust your goal time for this course’s hills and typical race-day weather.Race time calculator →

Guides for this race

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<a href="https://irun42.com/race/waldo-100k" title="Waldo 100K on iRun42"><img src="https://irun42.com/badge/waldo-100k.svg" width="300" height="120" alt="Waldo 100K: course, elevation and race-day weather on iRun42" /></a>

Around the same time

All races in August 2027 →

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