Most jockeys spend all winter in search of the horse they will ride in the Kentucky Derby. Javier Castellano thought he had found his Derby mount nine months ago.
After Castellano guided Union Rags to a 7 1/4-length victory in the Grade 2 Saratoga Special on Aug. 15, he thought to himself “that’s my Derby horse.” He felt only stronger about it after he rode Union Rags to a 5 1/4-length victory in the Grade 1 Champagne at Belmont in October.