162.2 kmTrail🇺🇸 Altadena, United States

Angeles Crest 100

Saturday, 2 October 2027In 11 months · Start 05:00

Southern California's historic mountain 100 through the San Gabriel Mountains above Los Angeles, now on a loop starting and finishing at Loma Alta Park in Altadena with about 6,000 m of climbing.

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Facts checked 27 Oct 2026 against ultrasignup.com, ac100.com.

Elevation gain

6,096 m

Mountain · ↓ 6,096 m

Start altitude

411 m

above sea level, from terrain data

Temp at start

18°C

Peaks around 24°C

Entry fee

≈ $440

Lottery

Finishers

—

typical year

Course

Loop

33h cut-off

Getting thereFly into BUR (Burbank), about 18 km from the start

Plan your trip to Altadena

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

Hotels near the start lineFri 1 Oct – Sun 3 Oct · 2 nights · closest to the start firstSee hotels on Booking.com Flights to AltadenaArrive Thu 30 Sept, fly home Mon 4 OctSee flights on Google Flights

Things to do in AltadenaKlook Mobile data in United StatesAiralo Airport transfer from BURKiwitaxi 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 6,096 m of climbing and 6,096 m of descent. A detailed profile isn’t available for this race yet.

Race-day weather

At start

18°C

Peak during race

24°C

Humidity

50%

Chance of rain

Wind

4 km/h

2 October in past years

Historical averages for 2 October ±3 days, 2016–2025, from 05:00 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/angeles-crest-100" title="Angeles Crest 100 on iRun42"><img src="https://irun42.com/badge/angeles-crest-100.svg" width="300" height="120" alt="Angeles Crest 100: course, elevation and race-day weather on iRun42" /></a>

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