eHow launches Android app: Get the best of eHow on the go.
Summary: Throwing a screwball in baseball is done by putting the point finger on the seams. Learn to throw a screwball with tips from a former major league baseball pitcher in this free video on baseball.
John Riedling played professional baseball for 13 years, including five years in the major leagues. He pitched for the Cincinnati Reds and the Florida Marlins. John is currently a...read more
"Hello I'm John Riedling and today I'm going to talk with you about throwing a screwball. In throwing a screwball the key is in the grip. You really want to put your point finger on the seams where you have something to push against. And when throwing a screwball you really got to pronate your wrist and what that does is it makes the ball a reverse curve ball. A right-handed pitcher it will go away from lefties. If you're a left-handed pitcher it will go away from the righties. So when you're throwing a screwball, you want to think fastball the whole time until the very last second, you really want to pronate your hand and put pressure on your point finger and pull down with that finger. And right now I'm going to demonstrate how to throw a screwball. I'm John Riedling and that's how you throw a screwball."
eHow Article: How to Throw a Screwball