What do bat speed and exit velocity actually tell you?
Bat speed is how fast the barrel moves; exit velocity is how hard the ball comes off it. Together they show whether the swing is working.
Three numbers come up in almost every session. Here’s what each one means.
Bat speed
How fast the barrel is moving at contact, measured with a Blast Motion sensor on the knob of the bat. It reflects strength and how well the body sequences the swing.
Exit velocity
How fast the ball leaves the bat, measured with a Pocket Radar. Bat speed is the potential; exit velocity shows how much of it reaches the ball. A player with good bat speed and low exit velocity usually isn’t squaring the ball up.
Throwing velocity
How hard the player throws, measured by radar. For pitchers and position players alike, it’s tracked alongside arm care so effort stays in a safe range.
Why measure at all
Numbers turn “looks better” into “went from 52 to 57.” The most useful comparison is a player against their own baseline, session after session. The Velo Check ($25, 20 minutes) measures all three and shows where the player ranks against others their age.