Orange Curtain 100K/50K/30K/10K

How fast can you run 100 km?

The Orange Curtain is sponsor race of the Southern California Ultra Runner's Grand Prix Series.



  • Date for the next race is 2/24/2018.
  • The start time for 2018 is 6:00 am(100K), 7:00 am(50K), 8:00 am(30K, 10K).
  • Cutoff time has been extended to 14 hours.
  • 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 Liberty Park in Cerritos, 19211 Studebaker Rd, Cerritos, CA 90703
  • Parking is free at the start location.
  • Race course is certified by USATF, certification code: CA17011RS
  • USATF recognition and International Association of Ultrarunners (IAU) bronze labels for the 50K and 100K  
  • ‚Äč30K/10K fun run/walk added also for family/friend while waiting.



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