Exit Velocity
The speed of the ball immediately after leaving the bat, measured in miles per hour, a key indicator of how hard a ball was hit.
Example Usage
“That line drive had an exit velocity of 108 mph, an absolute rocket.”
Exit Velocity
Exit velocity (or "exit velo") measures the speed of the baseball immediately after it leaves the bat, expressed in miles per hour (mph). It's a key indicator of contact quality and batted ball authority.
Why Exit Velocity Matters
Higher exit velocity means:
- Less time for fielders to react
- More hits on balls in play
- More extra-base hits and home runs
- Better outcomes on all batted balls
Exit Velocity Benchmarks
MLB Average
- League average: ~88-89 mph
- Elite hitters: 95+ mph average
- Maximum: 120+ mph (rare)
Youth/Amateur
- High school: 75-90 mph
- College: 85-100 mph
- Varies significantly by age and strength
Factors Affecting Exit Velocity
Physical
- Bat speed
- Strength
- Swing mechanics
- Quality of contact (sweet spot)
Equipment
- Bat material and construction
- Bat weight and length
How to Increase Exit Velocity
- Strength training: Core, legs, forearms
- Swing mechanics: Efficient energy transfer
- Quality contact: Hitting the sweet spot
- Bat speed work: Underload/overload training
Exit Velo + Launch Angle
The combination matters most:
- 95+ mph at 25° = likely home run
- 95+ mph at 5° = hard ground ball (less valuable)
- Best results combine high exit velo with 10-30° launch angle
Related Terms
Launch Angle
The vertical angle at which the ball leaves the bat after contact, measured in degrees, a key metric in modern hitting analysis.
Line Drive
A hard-hit ball that travels on a relatively straight, low trajectory, the most productive and desirable type of batted ball.
Bat Speed
The speed of the bat's sweet spot at contact, measured in mph. MLB average is around 71-72 mph. It is a measure of raw power potential, but just one factor in how productive a hitter is.
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