The Dubai Racing Carnival released the nominations for the 2012 World Cup at Meydan Racecourse. Among the American horses nominated to the $10 million Dubai World Cup (the world's richest thoroughbred horse race) are: 2011 Kentucky Derby winner Animal Kingdom, Pacific Classic winner Acclamation, Santa Anita Derby winner Midnight Interlude, Prayer for Relief, Belmont winner Ruler On Ice, and Breeders' Cup Ladies' Classic winner Royal Delta.