The legendary 100-mile run started back in 1986. One of the original five 100 milers. AC100 has strived to keep the race’s original point-to-point course from Wrightwood to Altadena largely intact while preserving its level of difficulty. It’s one of only 6 point-to-point 100-mile runs in the country. You’ll traverse 100 miles of San Gabriel mountains from elevations of 1,135 to 9,300 feet.

The 34th Annual AC100 will be July 29, 2023

Invitations are available for the 2023 Race Waitlist

For 2024 AC100

  • The 2023 Lottery is for the 2024 Angeles Crest 100 Race.
  • The 35th Annual Angeles Crest 100 will be on July 27, 2024.
  • The 2023 Angeles Crest 100 Lottery will be hosted on UltraSignup.
  • All Runners will have the opportunity to enter the 2024 Angeles Crest 100 Mile Endurance Run. AC100 uses a Lottery because of the high demand and the limited number of spots available.
  • Lottery registration will be on November 24, 2023, through December 8, 2023.
  •  Runners that are entered in the 2024 AC100 will be announced on December 15, 2023.
  • There will be 230 spots for the Lottery. The roughly 30 remaining spots are reserved for volunteers, sponsors, and Sterling Silver Ticket Winners.
  • All Lottery entrants will have to run a 50+ Mile Race between July 31, 2023 and July 13, 2024. The result of your qualifying run must be published in a magazine like Ultra Running or on UltraSignup’s website. It’s part of the entry process and is required to register for the Lottery.
  • Refunds for all runners: 50% up until March 1st and 25% up until June 1st.
  • A Waitlist will be announced on December 15, 2023. We will continue to add Waitlist runners to the race until June 1, 2024.
  • If you are on the Waitlist, you will be added to the race whenever a runner drops from the Entry List.
  • All runners in the race are required to complete and submit Trail Work between July 31, 2023 to July 13, 2024. Runners who do not complete the Trail Work, will not be allowed to start the Race.
  •  Runners that have consistently entered each year and have not been drawn in the AC100 Lotteries will be given an extra ticket for each year they have not been selected.
  • Runners will get 1 more ticket for each year they have finished AC100.
  • Solo Runners will get 1 more ticket, and are eligible for special Solo Division Awards, Buckles, and T-shirt.
  • Signing up for the SOLO division means that you will have NO PACER(S) and NO CREW support during the race. NO switching divisions is permitted after signup.
2019 AC100 Champ Melissa Danehey. Photo- Kaori Photo