Max Height is determined by finding the maximum vertical distance on a batted ball. Average Height (aHI) is calculated by dividing the sum of the Max Height on all of a player's Batted Ball Events, by his total Batted Ball Events.
There isn't much that can be gleaned from the average Height of a player's batted balls. Perhaps we can get an indication of a hitter's strength, because it takes some muscle to get under a ball and put it very high in the air. But that generally results in an out, anyway.
Instead, Max Height is generally used in individual circumstances to get a better understanding of the route and arc traveled by the baseball in a specific instance.
Watch: Statcast tracks the Max Height of Kris Bryant's home run.
In A Call
"elevation," "highest point"