JULY 29, 2023

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 2023 lottery will open Monday, December 5, 2022

The 2023 lottery will close on Monday, December 12 2022

The Official entrant list will be announced on December 19, 2022.


  • The 2023 Angeles Crest 100 Mile Endurance Run lottery will be hosted on UltraSignup.
  • All Runners will have the opportunity to enter the 2023 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 begin on Monday, December 5, 2022, until Monday, December 12.
  • 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 need to have run a 50+ Mile Race 12 months before the lottery. The result of your qualifying run must be published online. 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 Dec 19th. We will continue to add waitlist runners to the race until June 1st.
  • If you are on the waitlist, you will be invited to register whenever a runner drops from the start list.
  • All runners in the race are required to complete and submit Trail Work between December 19th, 2022 to July 15th, 2023. Runners who do not complete the Trail Work, will not be allowed to start the Race.
2019 AC100 Champ Melissa Danehey. Photo- Kaori Photo