Open track is a non-competitive series of track times with 20 cars per group running for 20 minutes at a time.
Sign up continues until they get the 80 car maximum.
Rod or Bev with Ohio Shelby American Automobile Club
@ 330-497-9683 would be your best source for additional information.
I can e-mail you the additional materials/info. available. I scanned them into an MSWord document.
wadesdad@hotmail.com