The floodgates opened in the Turfway Park racing office the morning of Sept. 8 when almost 100 horses were entered for the Sept. 10 program that features the $75,000 Weekend Delight Stakes.Some horsemen avoided entering their horses the first three nights of the meet because of concerns over new race-day medication regulations and related penalty schedule. The crux of their argument is the rules are unclear.Kentucky Horse Racing Authority executive director Jim Gallagher met with horsemen at Churchill Downs and Turfway, and planned to meet Sept. 9 with others at Keeneland. Officials have said they believe horsemen are developing a comfort level with the new regulations.Many of the holdouts began entering horses the morning after the debut of the new Polytrack surface at Turfway. The surface was well received after the first night of racing. For the Saturday program, 96 horses were entered, including 12 for the Weekend Delight, a six-furlong event for fillies and mares. There is one six-horse field on the card, but six of the races drew 10 or more horses, and two others have nine entered.For the Sept. 9 program, Turfway could fill only eight races.