Ground rules are rules applying to the field, objects on and near it, and special situations relating to them, in the game of baseball. Major League Baseball has defined a set of "universal ground rul
Fenway Park has a ground rule for balls that hit the top of the ladder on the Green Monster and go out of play—the batter is awarded a ground rule double
A ground rule double is a baseball rule that awards two bases from the time of pitch to all baserunners including the batter-runner, as a result of the ball leaving play after being hit fairly and lea
Outfielders raising their arms, due to the baseball going under or becoming stuck in the fence, resulting in a ground rule double.