We’ll discuss how each pitch is thrown and how it affects hitters. Lastly, we’ll give you our take on which type of fastball is best. The list of pitches might seem like a lot to keep track of, but remember that each pitcher utilizes only a selection of these pitches. For example, Pedro Martinez throws a curveball, circle-changeup, an occasional slider, and a fastball. Unlike a breaking-ball grip or wrist position at release, fastball types are simply tied to seam orientation in the pitcher’s hand.
It is probably just a matter of which pitch he is more comfortable throwing. It is called a 4 seam because as the ball rotates when thrown, 4 of 2 seam fastball grip its seams are spinning against the air. This makes the ball more aerodynamic allowing it to cut through the air and get from point A to point B.
There should be a little bit of a gap between the palm of your hand and the ball. When you release the ball, let your fingertips roll off the laces. Fingers rest across the seams with open space between the base of the fingers and the palm of the hand.
The two-seam fastball is a great pitch to use if you are ahead in the count. Since the ball will “run” or move, it is best not to use it when you are far behind in the count as it might run out of the zone. The four-seam fastball is the more basic of the two grips and is easier to throw. Keep the ball hidden in your glove when you’re throwing, or you might tip off the batter what pitch you’re throwing. When you follow through, snap your wrist down while applying pressure with your middle finger.
Breaks away from a right handed hitter as it reaches the plate. Faster than a slider but with more movement than a fastball. If you believe adding velocity could be critical to your success, check out my conditioning and throwing programs for baseball pitchers of all ages. It’s called the two-seamer because, due to the grip, the batter sees only one pair or horizontal seams spinning, instead of two. Index and middle fingers going with the seams, thumb underneath.