Sandy Koufax - Pitching Style

Pitching Style

Whereas many pitchers throw with a three-quarter or sidearm motion, Koufax threw with a pronounced over-the-top arm action. This may have increased his velocity, but reduced the lateral movement on his pitches, especially movement away from left-handed hitters. Most of his velocity came from his strong legs and back, combined with a high kicking wind-up and long forward stretch toward the plate. Throughout his career, Koufax relied mostly on two pitches: his four-seam fastball had a "rising" motion due to underspin, and not only appeared to move very late but also might move two or three distinct times; his overhand curveball, spun with the middle finger, dropped vertically 12 to 24 inches due to his arm action. He also occasionally threw a changeup and a forkball.

"I knew every pitch he was going to throw and still I couldn't hit him."

At the beginning of his career, Koufax worked with coaches to eliminate his tendency to "tip" pitches (i.e. reveal which pitch was coming due to variations in his wind-up). Late in his career, and especially as his arm problems continued, this variation—usually in the position he held his hands at the top of the wind-up—became even more pronounced. Good hitters could often predict what pitch was coming, but were still unable to hit it.