Averil Whitehead

John Tuthill wouldn't be the type to shout from the rooftops about the racetrack successes of the graduates of his Owenstown Stud. But, then again, he doesn't have to--the horses have done the talking themselves. From a band of about 15 broodmares of his own, Tuthill bred two winners of the G1 Queen Elizabeth S. in the space of five years: Excelebration (Ire) (Exceed and Excel {Aus}) in the Derrick Smith silks in 2012 and the filly Persuasive (Ire) (Dark Angel {Ire}) for Cheveley Park Stud in 2017. He also...