Fly Ball Percentage (FB%) is a pitching statistic that measures the percentage of balls batted into play off a pitcher that are classified as fly balls.
FB% = fly balls hit / balls in play
More about Pitcher Fly Ball Percentage (FB%) Leaders
Pitching fly ball percentage leaders are those who allow the greatest percentage of balls put into play against them to be a fly ball. Fly ball percentage leaders are generally going to be pitchers who are more likely to throw the ball up in the strike zone (which encourages batters to hit the ball into the air rather than pound into the ground). Those who allow the greatest percentage of fly balls against are best served by pitching in ballparks with deep fences so that deep fly balls are more likely to turn into fly outs or doubles/triples rather than home runs.