Breeders' Cup Sprint (2012) Willie Martinez (born March 3, 1971) is a Puerto Rican jockey who competes in thoroughbred horse racing.
Martinez was born in Santurce, San Juan, Puerto Rico, but moved to the mainland United States in 1988 to work as a hotwalker and groom for his sister's godfather at Finger Lakes Race Track in Farmington, New York.
In 1997, at Woodbine Racetrack in Toronto, he rode Cryptocloser to victory in the Prince of Wales Stakes, the second leg of the Canadian Triple Crown series.
From 1992 through 2007, Martinez – along with William Henry – held the jockey's record at Tampa Bay Downs for the most wins in a single season with 123 victories to his credit.
He also rode Brass Hat to a second-place finish in the Dubai World Cup, although the horse was later disqualified for a medication violation.