Ground Balls to Fly Balls Allowed Ratio measures the rate of ground balls hit off pitchers compared to fly balls hit off pitchers, which gives an indication of whether the pitcher is more likely to give up ground balls or fly balls.
Ground Balls to Fly Balls Allowed Ratio = Ground Balls Allowed/Fly Balls Allowed
Included qualifying pitchers only.
More about Ground Balls to Fly Balls Allowed Ratio Leaders
Pitchers who lead the league in ground balls to fly balls allowed are those who have allow the greatest share of ground balls relative to all balls put in play. A pitcher can allow a lot of ground balls, but if he is not a strikeout pitcher and thus also allows a significant number of fly balls he will not appear among the league leaders. When looking at qualifying pitchers only, the top 10% or so of pitchers will have a ratio of 2 or greater, and the most extreme ground ball pitchers can have a ratio of 3 or higher. The vast majority of pitchers will have a ratio of 1 or higher, but there are always a few outliers who allow more fly balls than ground balls when looking at all balls put into play.