OAKLAWN PARK, Hot Springs, AR PARX, Bensalem, PA PENN NATIONAL, Grantville, PA PIMLICO, Baltimore, MD PRAIRIE MEADOWS, Des Moines, IA PRESQUE ISLE DOWNS, Erie, PA REMINGTON PARK, Oklahoma City, OK RETAMA PARK, San Antonio, TX RUIDOSO DOWNS, Ruidoso Downs, NM SAM HOUSTON, Houston, TX ...