In 2014, Contreras came short of another Canadian Triple Crown after finishing tenth at the Breeders' Stakes following wins at the Queen's Plate and Prince of Wales.
As part of the Triple Crown of Thoroughbred Racing, Contreras's best results were third at the 2014 Preakness Stakes and sixth at the 2018 Kentucky Derby.
For the American Triple Tiara of Thoroughbred Racing, Contreras placed sixth at the 2011 Alabama Stakes.
While winning over 2,400 races in his career, Contreras received the Sovereign Award for Outstanding Jockey in 2011 and 2012.
[1] Growing up, Contreras had hundreds of wins in Mexico after he started his jockey career as a teenager.
[3] Contreras began competing in the United States in 2007 at races held in California and New Mexico.
[15] With Inglorious and Pender Harbour, Contreras was the first jockey to use two horses to win the Canadian Triple Crown.
[16] In 2014, Contreras re-won the Breeders' Stakes after having top three finishes at the Queen's Plate and Prince of Wales.
[18] In 2017, Contreras missed his second Triple Crown after he was tenth at the Breeders' Stakes following his wins at the Queen's Plate and Prince of Wales.
[26] For the Canadian Triple Tiara of Thoroughbred Racing, Contreras won both the Woodbine Oaks and the Bison City Stakes in 2011.
[41] In December 2018, Contreras won his 2,000th North American race while competing at Woodbine Racetrack.