(from the article `baseball`) ...as in on the batter or away from him. Fastball pitchers of note include Walter Johnson, Satchel Paige, Bob Feller, Nolan Ryan, and Roger Clemens. ...
[n] - a baseball thrown with little velocity when the batter is expecting a fastball
A slow pitch that is meant to look much faster.
change-of-pace noun a baseball thrown with little velocity when the batter is expecting a fastball