Phillip Dutton made his Olympic debut in 1996 as a member of the Australian national eventing team. He made his fifth Olympic appearance at the London 2012 Games. He is a five-time Olympian and represented Australia and the United States, placing gold twice. Dutton left Australia in 1991 and became a U.S. citizen in 2006 residing in West Grove, Chester County, Pennsylvania. He is the oldest member of Team USA.