136th Preakness Stakes

136th Preakness Stakes

Jonathan Ernst/Reuters

Thousands of fans enjoyed the prerace festivities at Pimlico.

James Berglie/Zuma Press.com

Just like at the Kentucky Derby, stylish hats were all the rage at the track.

Simon Bruty/SI

And they're off ... a full field of 14 took part in the 136th Preakness Stakes.

Simon Bruty/SI

Shackleford (center) ridden by Jesus Castanon, works out of Turn 4 in front of the rest of the pack.

AP

Jesus Castanon checks outside for Animal Kingdom's position while Astrology (right) tries to narrow the gap.

Simon Bruty/SI

The last horse to sweep the Derby, Preakness and Belmont Stakes was Affirmed in 1978. Big Brown (2008) was the last with a chance to win the Triple Crown.

Bill Frakes/SI

Shackleford (right), which went off as a 12-1 shot, finished fourth in 2011 Kentucky Derby.

Sue Kawczynski/Zuma Press

Jesus Castanon is all smiles after winning the Preakness Stakes aboard Shackleford by 3/4 of a length over John Velazquez and Kentucky Derby winner Animal Kingdom.

Bill Frakes/SI

Jesus Castanon takes in the sights as he guides Shackleford -- draped in Black-Eyed Susans -- to the winner's circle.

Bill Frakes/SI

Jesus Castanon and trainer Dale Romans share a moment of victory while holding the Woodlawn Vase.