10/05/2026
🥎 WHAT DO ALL THOSE PITCHLOGIC NUMBERS ACTUALLY MEAN?
PitchLogic gives us a LOT of information after each pitch—but the goal isn’t to chase numbers.
The goal is to understand what the ball is doing and WHY.
Here are a few of the numbers we’ll be looking at during TPC lessons:
⚡ VELOCITY
How fast is the ball traveling?
Velocity is only one piece of the puzzle. We can track increases over time, compare different pitches, and see whether mechanical changes are helping a pitcher create more efficient power.
🌀 SPIN RATE
How fast is the ball spinning?
More spin isn’t automatically better. We want to look at whether the pitcher is creating the right type of spin for the pitch she is trying to throw.
🎯 SPIN EFFICIENCY
How much of that spin is actually contributing to the movement of the pitch?
This helps us see whether the pitcher is transferring her spin effectively—or whether some of that spin isn't helping the ball move the way we want.
↗️ SPIN DIRECTION / AXIS
Which direction is the ball spinning?
This is HUGE when developing movement pitches.
If we are working on a rise, drop, curve, or another movement pitch, we can see whether the ball is actually spinning on the axis needed to create that pitch shape.
↕️ HORIZONTAL & VERTICAL MOVEMENT
What did the ball actually DO in the air?
Now we can compare what we thought happened to what actually happened.
Did the drop move down?
Did the curve create enough horizontal movement?
Did the rise stay on the plane we wanted?
💪 ARM SLOT
Where is the arm at release?
We can look at consistency from pitch to pitch and see if something changes when a pitcher switches pitch types.
Ideally, hitters shouldn't be able to tell what is coming just because a pitcher changes her delivery!
SO HOW WILL WE USE ALL OF THIS AT TPC?
We can:
✅ Establish a baseline for each pitch
✅ Compare pitches before and after an adjustment
✅ Test different grips and releases
✅ Track velocity and spin development
✅ Measure consistency
✅ Look at pitch movement and separation
✅ Set individualized goals
✅ Track progress over time
The best part?
We can make an adjustment during a lesson, throw again, and immediately see whether it actually changed the pitch.
FEEL ➡️ DATA ➡️ ADJUST ➡️ THROW AGAIN ➡️ LEARN
PitchLogic isn't replacing what I see as a coach.
It's helping us put numbers behind it.
And it gives my pitchers another way to understand their own pitches instead of simply being told, “That one was better.”
🥎 We aren't just learning how to throw pitches—we're learning how to BUILD them.