Also, and it's hard to believe this needs to be spelled out, exit velocity is a measurement of how hard the ball is hit, which can proxy to how well Schwarber is timing pitches in the AFL. If he had gone 2 for 3 with a broken bat single and a bloop double, that'd be less positive than his actual result of a hard hit groundout and a double down the line. Or in other words, exit velocity is simply putting a finer point on the eyewitness accounts talking about Schwarber grounding out sharply, or smoking a double to RF.