Baseball pitches aren’t living creatures; they don’t have feathers. They do fly, though, and to an incurious or uninitiated observer, their flights and behaviors could blend together. “Pitches,” one ...

When is a pitch a pitch? When is a new pitch type born? Who gets credit? At some point, the slider was not a thing. Then Charles Bender threw his “nickel-curve” so often in the early part of the 20th ...

Swing speed and exit velocity are largely two sides of the same coin, with one important difference: we get swing-speed data on whiffs too. This is important as we can detect when batters are using ...