The Science Behind It:

The amount of power – measured in watts – that is applied to the bat during the swing by the hands and body.

What Is It?

Why Is It Important?

'Watt' Is It

What If You Have High Max Acceleration But Low Applied Power

How It Levels The Playing Field

How It Relates To Impact Momentum

What It Means For Hitters:

Higher Applied Power causes the bat to reach a higher momentum more quickly which allows for the batter to hit the ball further. Additionally, more Applied Power allows the hitter to start the swing later, which gives the hitter more time to make swing decisions. This is especially important when facing pitchers with higher pitch velocities.

What It Means For Coaches:

Since the distance a ball travels after contact depends on barrel speed at impact and the weight of the bat, more Applied Power during the swing means that it takes the batter less time to reach their Max Barrel Speed.

Furthermore, more Applied Power means the batter is transferring more energy from his body to the bat, and then to the ball. This will result in more bat speed and ultimately more power.

Real World Similarity

Cars with higher powered engines go from 0-60 MPH faster than cars with lower powered engines. A batter that generates more Applied Power during a swing would have a “higher powered swing engine”, allowing the bat to reach a higher swing speed more quickly. 

The Science Behind It:

Maximum Acceleration captures how quickly a batter speeds up their swing from the start until impact and correlates directly with the force and torque applied to the bat.

What Is It?

What Is a G?

How To Improve Your Acceleration

What It Means For Hitters:

Higher Max Acceleration allows hitters to start the swing later – allowing more time to make swing decisions – but still produce a high rate of bat speed and momentum.

What It Means For Coaches:

By applying more force and torque (higher Max Acceleration), hitters can get their bat up to speed more quickly, giving the hitter more time to make swing decisions. 

Real World Similarity

When two cars accelerate from 0 to 60 MPH, the car with the highest acceleration gets to 60 MPH more quickly. A hitter with a higher acceleration rate from the start of the swing to contact can wait longer to identify a pitch, allowing more time to make swing decisions.

The Science Behind It:

Impact Momentum is the amount of momentum in the bat when contact is made. Impact Momentum is determined by barrel speed at contact, and the weight of the bat. 

What Is It?

The Essence Of Power

Understanding Your Numbers

How It Levels The Playing Field

Understanding Reserve Momentum

What Has The Greatest Effect On Exit Velocity

What It Means For Hitters:

The higher the Impact Momentum, the further the ball will travel after contact.

For every additional +1 of Impact Momentum, the batter increases exit velocity by + ~1.5 mph. For balls with a HR trajectory, every + ~1.5 mph of exit velo = + ~10 feet of carry.

With this in mind, the difference between an Impact Momentum score of 24 and one of 25 is + ~1.5 mph of exit velocity and + ~10 feet of carry for a home run trajectory fly ball.

What It Means For Coaches:

This measure is the one most closely associated with the power of the hitter. This is because higher momentum directly relates to further hit balls.

Real World Similarity

If a sports car and a dump truck are both moving at 60 MPH, the dump truck – the heavier object – has more momentum than the sports car. If two hitters have the same swing speed, the hitter with the heavier weighted bat would have more momentum and be able to hit the ball further.