who gets chosen for the home run derby
Home Run Derby (Major League Baseball) The field of players selected currently consists of four American League players and four National League players. The first Derby in 1985 featured five from each league, and the 1986 and 1987 events featured three and two players from each league, respectively. In 1996, the field was again expanded to ten players, five from each league (though in 1997, the AL had six contestants to the NL's four).