Triple Crown series:Kentucky Derby (1990, 2007) Breeders' Cup wins: Carl A. Nafzger (born August 29, 1941) is an American Hall of Fame horse trainer.
In 2006, he was back in the national spotlight as the trainer of the colt Street Sense, who won the 2006 Breeders' Cup Juvenile and went on to win the 2007 Kentucky Derby.
In the late 2000s and early 2010s, Nafzger moved into semi-retirement, training only for two clients: James B. Tafel, owner of Street Sense, and Bentley Smith.
[2] Following the end of his bull riding career, Nafzger went to California from his home in Texas and began training Thoroughbred racehorses.
Nafzger gave Mrs. Genter an excited stretch call captured on television as Unbridled won, to her tearful delight.