triple crown

(baseball) an unofficial title won by a batter who leads the league in hitting average, runs batted in, and home runs.

(horse racing) a title won by a horse that can win the Kentucky Derby and the Belmont Stakes and the Preakness.

Of a horse that has won the Kentucky Derby and the Belmont Stakes and the Preakness races.

Unofficial championship title for player who heads the league in batting average and home runs and runs batted in.