160.9 kmTrail🇺🇸 Olallie Lake, United States

Mountain Lakes 100

Saturday, 18 September 2027In 11 months · Start 08:00

A 150-runner Cascades 100 based at Olallie Lake Resort, using rocky stretches of the Pacific Crest Trail between Mt. Jefferson and Mt. Hood and passing a string of alpine lakes.

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Facts checked 28 Oct 2026 against gobeyondracing.com.

Elevation gain

3,566 m

Mountain · ↓ 3,566 m

Highest point

1,737 m

above sea level

Temp at start

7°C

Peaks around 14°C

Entry fee

≈ $395

Open entry

Finishers

—

typical year

Course

Loop

30h cut-off

Getting thereFly into PDX (Portland), about 107 km from the start

Plan your trip to Olallie Lake

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

Hotels near the start lineFri 17 Sept – Sun 19 Sept · 2 nights · closest to the start firstSee hotels on Booking.com Flights to Olallie LakeArrive Thu 16 Sept, fly home Mon 20 SeptSee flights on Google Flights

Things to do in Olallie LakeKlook Mobile data in United StatesAiralo Airport transfer from PDXKiwitaxi 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 3,566 m of climbing and 3,566 m of descent. A detailed profile isn’t available for this race yet.

Race-day weather

At start

7°C

Peak during race

14°C

Humidity

61%

Chance of rain

24%

Wind

9 km/h

18 September in past years

Historical averages for 18 September ±3 days, 2016–2025, from 08:00 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/mountain-lakes-100" title="Mountain Lakes 100 on iRun42"><img src="https://irun42.com/badge/mountain-lakes-100.svg" width="300" height="120" alt="Mountain Lakes 100: course, elevation and race-day weather on iRun42" /></a>

Around the same time

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