The post position draw of the entries for the Kentucky Derby was held on Wednesday, April 29, 2015, at the Churchill Downs Racetrack clubhouse.
American Pharoah was installed as the 5-2 morning line favorite. The day after the draw,
Todd Pletcher scratched Stanford, stating that the horse was "fine" but they were not pleased with the draw and had been "on the fence" about running in the Derby. On May 1, El Kabeir was scratched due to a possible hoof problem; however, the also-eligible Tale of Verve did not get a chance to run since the scratch was made after the cutoff time that allows also-eligible runners to start in the race. Overall, the 2015 field was considered "the deepest and most talented in decades". Trainer
Bob Baffert had the top two favorites:
American Pharoah and
Dortmund. Dortmund, winner of the
Santa Anita Derby, was 6–0 entering the race, a feat matched by 1977 winner
Seattle Slew and 2004 winner
Smarty Jones. American Pharoah was 4–1, having placed fifth in his debut before running off four straight victories, including an eight-
length win in the
Arkansas Derby. Baffert described the experience as like being "on pins and needles all week long", as reporters and fans expected one of his two horses to win. Other notable horses in the field included the undefeated
Florida Derby winner Materiality;
Wood Memorial winner Frosted;
UAE Derby winner Mubtaahij; and
Sunland Derby winner
Firing Line, who had lost to Dortmund twice by very narrow margins. ==Race description==