Ground ball fly ball ratio

In baseball statistics, ground ball fly ball ratio (denoted by G/F), also known as ground outs per fly outs (denoted by GO/AO), is a measure of:

• how frequently a pitcher gets batters out on ground balls versus fly balls; calculated as: (ground outs) / (fly outs).

• how frequently a batter grounds out versus flies out; calculated as: (number of ground outs) / (number of fly outs).