Orange Curtain 100K / 50K / 30K / 10K
How fast can you run 100KM?
until race day
Race day is June 21-22, 2024
The Orange Curtain 100 km race is a 10 kilometer out and back (repeated 10 times) along a 5 kilometer segment of the asphalt and dirt bike path on the east side of the San Gabriel River in Cerritos, Lakewood, and Long Beach, California... read more
Register at Remember early registration will be the most affordable.

The Orange Curtain marathon distance is a Boston Qualifier (USATF Course Certificate #CA19020RS). This is a FAST course which makes it a great Boston qualifier run.

Good to know information

  • Race pictures: LV Photoscape (Gabriel Cruz)
  • Start time Fri 7:00pm (24H), 8:00pm (100K)
  • Saturday 6:00am (12H, 6H), 6:30am (50K), 7:00am (Marathon), 7:30 (30K), 8:00am (10K)
  • Cutoff time for all Race divisions at Saturday 7:00pm
  • Night time Pacers are allowed for safety purpose
  • Change race is allowed, at least 30 minutes before the race start
  • All Races Cutoff time is on Saturday 7pm
  • Course has adjoining dirt path for 90% of distance
  • Aid Stations will be located at the north and south ends of the course
  • Starting location is at the San Gabriel River Mid Trail at the South Street underpass
  • Parking is free on the Studebaker Rd and residential streets
  • Race course is certified by USATF, certification code: CA17011RS, CA19020RS(Marathon)
  • USATF recognition and International Association of Ultrarunners (IAU) bronze labels for the 50K, 100K, and 24 hours
  • ​Sponsor race of SoCal Ultra Series
  • Our Courses are certificated by:
Orange Curtain Endurance Run Packet Pick Up

Option to stop by A Snail's Pace Running Shop at Brea to pick up your bib on Thursday 2-6pm for your event on Saturday:
1040 E Imperial Hwy
Brea, CA 92821
Stock up on your race & running needs and receive $10 off any purchase of $30 or more when you show your bib.
There will be running experts available to help you select your hydration, nutrition, and apparel& accessories needs.