In baseball, “FB” commonly denotes a fastball. This pitch is characterized by its velocity and generally straight trajectory. For example, a scouting report might indicate a pitcher throws an average fastball of 95 miles per hour, represented as “FB: 95 mph.”
The ability to throw a high-velocity pitch is a crucial asset for pitchers at all levels of the sport. A well-executed fastball can overwhelm hitters, generate swings and misses, and set up other, slower-breaking pitches. Historically, a dominant fastball has been a cornerstone of many successful pitching careers, and its effectiveness continues to be a major factor in modern baseball.