A sinker is a type of fastball pitch that is characterized by the ball taking a sharp, downward movement as it approaches the plate. It is one of the fastest types of pitch in baseball that is often used tactically by pitchers to induce ground balls and to prevent the hitter from making good contact between their bat and the ball.

Why Do Pitchers Use a Sinker Pitch?

Pitchers who are capable of throwing effective sinkers will use the pitch almost exclusively due to its tendency to result in weak contact and ground balls, which relieves them from relying as much on a secondary pitch to alter speeds. This in turn limits the number of home runs that the opposing offensive team achieves in a game. The pitchers who regularly rely on the sinker as their main pitch are known as ‘sinkballers’.