Matt Waldron’s knuckleball is probably the Majors’ hardest pitch to catch. It also might be the hardest pitch for umpires to call. And it’s a pretty darn good example of what ABS is for in the first ...

“The knuckle ball will ultimately replace the spit ball and may be even more effective than the famous twist.” —Clark Griffith as quoted in The Sporting News, May 7, 1908 “Me watching Niekro pitch was ...

Believe it or not, most of our writers didn't enter the world sporting an @baseballprospectus.com address; with a few exceptions, they started out somewhere else. In an effort to up your reading ...

The knuckleball can be almost impossible to hit, and can extend a player’s career by years. So why do so many in the major and minor leagues distrust the pitch? When Kevin Pucetas, a minor-league ...

Flatter pitches, fatter bats, shorter boundaries, fielding restrictions, free hits and Powerplays have all resulted in higher batting averages and faster scoring rates. Not that long ago, anything ...