The Pennsylvania Thoroughbred Horsemen's Association (PTHA) will celebrate its horsemen and membership with the annual Owners & Trainers Appreciation Day this Saturday, Aug. 15, at Parx Racing, the organization said via a press release on Wednesday.The 12-race program will feature more than $700,000 in total purses, with first post scheduled for 12:40 p.m. ET.The post PTHA Owners And Trainers Appreciation Day At Parx Aug. 15 appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.