Changeups are intended to be slower than fastballs, often having downwards or down and arm-side run. Changeups also spin slower than fastballs, meaning they have a lower spin rate.
The changeup grip can vary a lot, from circle-change grips to split-change grips to palm-ball-like grips. Changeups are probably the pitch where the grips have the most variation.
The movement of a changeup depends on the the comfort of the grip along with the wrist/hand action. Some changeups are taught with earlier pronation (turning the thumb of the throwing arm downward) near release, which can cause the pitch to move towards the pitcher's arm side.
Besides movement, changeups should spin less than fastballs, which should result in more ground balls.
Spin rates are ordered from the lowest up.
Pitch Grips: Splitters
Splitters are similar in nature to changeups. Based off of a wide grip with two fingers, splitters spin significantly less than fastballs, resulting in downward movement and occasional side movement. Because of the wide grip, pitchers are going to ...
Pitch Grips: Fastballs
The four-seam fastball is traditionally the first pitch that every baseball player learns. By putting your index and middle fingers across the four seams of the horseshoe, you get the fastest and straightest pitch a pitcher can throw. Four-seam ...
Pitch Grips: Cut Fastballs
Cut-fastballs move opposite of two-seam fastballs, to the glove side of the pitcher. The amount of movement can vary with some cutters moving more horizontally and others both horizontally and downwards. The cut-fastball grip is similar to a ...
Pitch Grips: Curveballs
Curveballs are meant to slower pitches that have significantly more vertical drop than other pitches. Most curveballs move in a 12-6 or 1-7 fashion. A good curveball can be paired well with fastballs to take advantage of tunneling. The curveball grip ...
Pitch Grips: Sliders
Sliders are designed to get many swings-and-misses as well a poor contact. The velocity can vary but the movement is similar to a cut-fastball, only more pronounced. A good slider moves downward and to a pitcher’s glove side. The slider grip can ...