Why Exit Velocity Matters for Home Runs

Exit velocity helps explain how hard a home run was hit. Learn how to use exit velocity when reviewing MLB home run data.

Updated 2026-05-09

What Exit Velocity Means

Exit velocity is the speed of the baseball as it leaves the bat, measured in miles per hour. It's a Statcast metric that captures how hard the ball was struck.

Why Hard Contact Matters

Hard contact is more likely to result in extra-base hits, including home runs. A ball hit at 110+ mph has a much higher chance of leaving the yard than a 95 mph fly ball.

Exit Velocity vs Distance

Distance and exit velocity are related but not identical. Launch angle, wind, and park dimensions all affect distance. A ball can be crushed at 112 mph and still die in the warning track if the launch angle is wrong.

Why Not Every Hard-Hit Ball Becomes a Home Run

Even 110+ mph contact can be a line drive into the gap, a hard ground ball, or a fly out. Exit velocity is part of the picture, not the whole picture.

How to Use Exit Velocity in Player Trackers

On a player tracker page, exit velocity helps separate "lucky" home runs from genuinely dangerous swings. A hitter averaging 108 mph on his HRs is more sustainable than one averaging 96 mph.

What to Avoid When Reading Exit Velocity

Don't treat one hot game as a trend. Sample size matters. And don't ignore launch angle — exit velocity without launch angle context can mislead.

Track Live Exit Velocity

The live MLB home run tracker shows exit velocity for every HR.