What is the significance of the waving motion pitchers do with their glove when throwing practice pitches?

Somethimes they wave it over their shoulder, sometimes towards the plate. I assume it is to tell the catcher what type of pitch is coming, but which motion equals which pitch?What is the significance of the waving motion pitchers do with their glove when throwing practice pitches?it's to signal their last pitch so that the catcher knows to toss his own warm-up throw to second base.What is the significance of the waving motion pitchers do with their glove when throwing practice pitches?
no motion = fastball

a forward roll = breaking ball

a pulling back towards himself = changeup



however, each team/pitcher/catcher may have a different system.What is the significance of the waving motion pitchers do with their glove when throwing practice pitches?Waving the glove toward the catcher means a fastball. I know that one for sure. When I pitched in college (fast pitch softball) my catcher and I made up the rest of the glove signals. It just eliminates talking during a warm up.What is the significance of the waving motion pitchers do with their glove when throwing practice pitches?
Its an aiming thing. While they are warming up they use this motion to keep their pitches online while their arm is not yet loose. It the same reason fielders point with their glove while throwing in the field.What is the significance of the waving motion pitchers do with their glove when throwing practice pitches?Catchers generally call the game, and I have never seen the motions you refer to.



Shaking the head, perhaps, but glove motion?What is the significance of the waving motion pitchers do with their glove when throwing practice pitches?
The pitcher is telling the catcher what pitch he is going to throw,a wave is a fastball,over hand flip of the wrist is a curveball, a motion back to himself is a change-up

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