A knuckleball or knuckler is a baseball pitch thrown to minimize the spin of the ball in flight, causing an erratic, unpredictable motion. The air flow over a seam of the ball causes the ball to change from laminar to turbulent flow.
It's harder to throw a knuckleball out of the windup than it is when you're playing catch. After warming up, line up about 30 feet away from your throwing partner and practice mastering the grip and the motion before you combine it all in a pitch.
The knuckleball is a fan favorite and a rare pitch that few have been able to master. With insights from our in-house knuckleballer, John Soteropulos, we’ll dissect how a knuckleball moves and show you what it takes to develop one for yourself.