In Pennsylvania Sire Stakes and Stallion Series competition at Harrah’s Philadelphia on Sunday afternoon (Aug. 24), 2-year-old trotting colts and geldings contested their fourth and final preliminary leg, racing for a combined $177,378 and adding enough points to make their upcoming rich Championships: the Sire Stakes horses at Philadelphia on Friday, Sept. 5, and the Stallion Series competitors on Monday, Sept. 8, at Pocono.