With 220 victories and $12.3 million in purse earnings in 2011 - to rank seventh in North America in earnings - Contreras smashed his previous personal bests of 175 wins and $6.2 million in earnings. The native of Mexico City won the riding title at Woodbine by 20 victories. He made history in 2011 by becoming the first jockey to sweep the Canadian Triple Crown with different horses. Contreras captured the Queen's Plate with the filly Inglorious and won the Breeders' Stakes and the Prince of Wales Stakes on Pender Harbour. He began riding at age 16 in Mexico and enjoyed great success there from 2002-2006, including four consecutive campaigns of 100-plus wins. In 2007 he moved to the U.S. and rode in Northern California and at Sunland Park in New Mexico. The turning point in his North America career occurred in 2009, when trainer Steve Asmussen decided to send a string to Woodbine for the first time and sent him there as first-call rider.