Hallett Motor Racing Circuit is a 1.8-mile, 10-turn road racing course in the rolling Osage Hills of North Eastern Oklahoma. It is located 35 miles west of Tulsa and has over 80 feet of elevation change. It has wide, grassy runoff areas and zero concrete or Armco barriers. Hallett is unique in that it can be run in either clockwise or counterclockwise directions ­ making it two completely different race courses and a longtime favorite with SCCA racers.