What is a walk-off in baseball? Dodgers' Freddie Freeman makes World Series history
In Friday’s Game 1 of the World Series, the Dodgers’ Freddie Freeman did it in spectacular fashion: a grand slam off Yankees pitcher Nestor Cortes. It was the first-ever walk-off grand slam in World Series history. The term walk-off comes from the fact that, once the run scores, both teams walk off the field.