July 24, 1977             Hallett Motor Racing Circuit, Tulsa, OK      IMSA GTU      Walter Maas
July 31, 1977       Star Buildings Trans Am      Hallett Motor Racing Circuit, Tulsa, OK      SCCA Trans Am      Peter Gregg
May 7, 1978             Hallett Motor Racing Circuit, Tulsa, OK      IMSA GT      David Hobbs
May 7, 1978             Hallett Motor Racing Circuit, Tulsa, OK      IMSA GTU      Dennis Aase
May 13, 1979             Hallett Motor Racing Circuit, Tulsa, OK      IMSA GTU      Dennis Aase
May 13, 1979             Hallett Motor Racing Circuit, Tulsa, OK      IMSA GT      David Hobbs
June 1, 1980             Hallett Motor Racing Circuit, Tulsa, OK      SCCA Trans Am      John Bauer
October 25, 1986       Gold Cup Challenge      Hallett Motor Racing Circuit, Tulsa, OK      CAT Can Am Teams      Al Lamb
June 7, 1987             Hallett Motor Racing Circuit, Tulsa, OK      CAT Can Am Teams      Al Lamb
June 17, 1990             Hallett Motor Racing Circuit, Tulsa, OK      American IndyCar Series      Bill Tempero
June 2, 1991             Hallett Motor Racing Circuit, Tulsa, OK      American IndyCar Series      Bill Tempero
June 21, 1992             Hallett Motor Racing Circuit, Tulsa, OK      American IndyCar Series      Bill Tempero