Also known as Pop Time, this test is measured using a stopwatch. The catcher receives a pitch, exchanges, and throws down to 2B. The timer starts when the ball contacts the Catcher's glove and is stopped when the ball contact's the middle infielder's glove at 2B. Combining technique, agility, and arm strength, Pop Time is one of the most important metrics for a Catcher because it indicates their ability to throw runners out.