John Macdonald has been appointed to the Ontario Racing Commission for a two-year term. Macdonald is a Toronto-based lawyer with clients with ties to the racing and breeding industries. . . . Trainer Philip Aristone had his 1,000th victory in the 10th race at Philadelphia Park on Tuesday when Delta Miner won. . . . The Indiana Horse Racing Commission has approved 63 days of Thoroughbred racing at Hoosier Park in 2010. The meet will run from July 30 through Oct. 24, with 26 of the dates also including races for Quarter Horses.