A curveball arches down as it crosses the plate creating a slower effect which disrupts the hitters timing.
The lateral motion makes it hard for the batter to time his swing to the pitch because it looks like it is coming in faster than it really is.
The back and forth rocking of the knuckleball and unpredictable air bouncing makes it hard for even experienced hitters to make contact.
Delivered with the same kind of arm motion as a fastball, the change up makes its way to the catcher much more slowly. Usually this pitch is thrown after a fastball so as to upset the batter’s timing.
1. Against what opposing team did Babe Ruth hit his first career home run?