Friday, September 15, 2023

Groundout-to-Airout Ratio (GO/AO)


Groundout-to-airout ratio is obtained by dividing the total number of ground balls converted into outs (not including bunts) by the total number of balls in the air (fly balls and line drives) converted into outs.

For pitchers, GO/AO can often be an indicator of success, because a pitcher generally aims to induce more ground balls than balls in the air (seeing as how these batted balls can turn into the most harmful result of all, a home run). But at the same time, certain pitchers can thrive while still allowing a high percentage of balls in the air, as long as they're inducing weak contact and/or striking out hitters.

For hitters, this number is used much less frequently as an evaluation tool, although speedier hitters typically strive for a higher ratio of ground balls to fly balls. That's because over the course of a season, some would-be groundouts become infield hits for batters who are fast enough to beat the throw.

Learn More, HERE.

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