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A horse is bathed after an early morning workout prior to the Kentucky Derby at Churchill Downs in Louisville, Ky.
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Exercise rider Johnny Garcia takes Kentucky Derby entrant I'll Have Another for a workout at Churchill Downs.
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Kentucky Derby entrant Union Rags yawns during his bath after a morning workout at Churchill Downs.
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Derby attendees chat in the paddocks before the 138th Kentucky Derby horse race at Churchill Downs.
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Water covers the ground on the outside of the track after heavy overnight rain during the first race of the day before the 138th Kentucky Derby.
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Race goers watch as jockey Colm O'Donoghue rides Revolving through the paddock before the third race at the Kentucky Derby.
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Spectators study their race programs before the Kentucky Derby.
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Jockeys and their horses proceed past the grand stand at Churchill Downs before the 10th race at 138th Kentucky Derby.
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Horses leave the starting gate during the Kentucky Derby.
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Jockey Mario Gutierrez rides I'll Have Another.
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Jockey Mario Gutierrez rides I'll Have Another to victory.
David J. Phillip/AP
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Jockey Mario Gutierrez reacts after riding I'll Have Another to victory in the 138th Kentucky Derby horse race at Churchill Downs.
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