Cox Plate
So You Think had won two of his four starts before the 2009 Cox Plate, including a Group 3 against his fellow three-year-olds, and earned a start in the Cox Plate with a solid finish for fifth in the Caulfield Guineas. There was some debate on whether the horse had achieved enough to warrant a start in the Cox Plate, but the Moonee Valley Racing Club decided that he was up to the challenge. He won the Cox Plate in convincing style, leading all the way to win by 2½ lengths in a fast time of 2:03.98. So You Think followed up his Cox Plate win with a second in the Emirates Stakes two weeks later, in his last race as a three-year-old.