Kentucky Derby 2013 (31 images)

Jockey Joel Rosario, ridding Orb, celebrates after winning the 139th Kentucky Derby at Churchill Downs on May 4, 2013 in Louisville, Kentucky. UPI/Kevin Dietsch

A race fan cheers as she watches early racing action in the rain prior to the 139th running of the Kentucky Derby at Churchill Downs on May 4, 2013 in Louisville, Kentucky. UPI/Kevin Dietsch

Race fans walk in the infield as heavy rains fall prior to the 139th running of the Kentucky Derby at Churchill Downs on May 4, 2013 in Louisville, Kentucky. UPI/Kevin Dietsch

Infield patrons play in the mud as heavy rains fall prior to the 139th running of the Kentucky Derby at Churchill Downs on May 4, 2013 in Louisville, Kentucky. UPI/Kevin Dietsch