Types Of Pitches: Sinker Ball

In this article, you'll learn how to grip and throw the two-seam fastball (sinker)

The two-seam fastball, or sinker, is gripped slightly tighter and deeper in the throwing-hand than the four-seam fastball.

Movement on this pitch comes from:

1. The friction that is created from holding the baseball deeper in the throwing hand.
2. The slight, natural pronation of the throwing-hand (which imbalances the baseball) when the pitch is released.

The index- and middle-fingers are placed directly parallel and on top of the narrow seams of the baseball (as shown in the picture on the left). Next, place your thumb directly on the bottom side of the baseball and on the smooth leather in between the other narrow seams (as shown in the picture on the right).