Based on our popular book

We've built this course from our popular book, updated it and included real world video examples illustrating many ideas and concepts from the book. The book is not required or included with the course, but you can purchase the book separately online at Amazon if you want to.

Perfect for player development , amateur scouting , advance scouting , and broadcasters.

Pitches Clearly Defined

The main purpose of this course is take a first principles approach to defining distinct pitch types independent of the specific pitcher or the pitcher method, that can be detected when only using data. It also avoids the current ambiguity in pitch names, subjective names of pitches, and intent or technique-based pitch names, as used today.

Whether the pitcher is a RHP, LHP, high arm slot, ¾ arm slot, side arm, submarine, holds the ball for 2 seams, 4 seams, 1 seam, it doesn’t matter, the pitch definitions in this course apply to them all the same because they are based only on the shape of the trajectory of the ball.

New Way of Detecting & Defining Pitches

This course defines each distinct pitch type independent of the specific pitcher or the pitcher method, in a way that can be detected when only using ball tracking data. It also avoids the current ambiguity in pitch names, subjective names of pitches, and intent or technique-based pitch names, as used today. The definitions of pitch types in this course can help greatly in analytics, amateur scouting, advance scouting, broadcasting, and player development.

Working with pitch tracking data it becomes quickly obvious that everyone has been avoiding the elephant in the room, that the pitch names assigned to a pitch in the data are often wrong or missing. That means that stats such as "Average Slider Velocity" for example, won’t be accurate because there may be curveballs, changeups, fastballs, etc. mixed in with the "Sliders". Also, for example, if the pitch is tagged a “Slider”, you’re not guaranteed that it is in fact a “Slider”. When examining the metrics for this “Slider”, you could be looking at the metrics for example, of a Changeup.

Up until now, everyone has been trying to classify pitches from the point of view of the Pitcher and speed. The method in this course classifies pitches from the point of view of the Batter and trajectory shape. Different points of view. 

This course defines each pitch type with data metrics and shows a visual of the pitch flight path from the batter’s point of view. There is no subjectiveness in the way they are defined, meaning everyone who looks at the pitch data will arrive at the same pitch type name using these formulas and definitions. The pitches are defined in terms of their trajectory shape, not their speed, and not how the pitcher intended to throw them. How the pitcher produced the trajectory shape, or intended to produce that shape, are irrelevant for classification because from a Batter’s point of view, the Batter only knows the pitch shape that was produced.

This course doesn't write about how to throw these pitches, as there will be many ways to throw the same pitch shape, and besides, that’s not the purpose of this course. In fact, linking the method or intent for how to throw a pitch type is partly what has caused the current ambiguity and subjectiveness of calling pitches today..

Course curriculum

  1. 1
    • Introduction

    • Current Day Misclassified Pitch Examples

    • Animated 3D plot showing pitch types

    • Pitch Definition Characteristics

    • Pitch Definition Characteristics Quiz

    • Pitcher Profiles, Groups and Comparisons

    • Pitcher Profiles, Groups, and Comparisons Quiz

    • Pitch Category Definitions

    • Pitch Category Definitions Quiz

    • Slasher

    • Shredder Fastball

    • Shredder - Shredder Fastball Video Example

    • Slider

    • Sliders Video Example

    • Power Slider

    • Power Shredder

    • Shredder

    • Shredders Video Example

    • Curveball

    • Curveballs Video Example

    • Power Curveball

    • Eephus

    • Cutter

    • Cutter Video Example

    • Power Cutter

    • Power Cutter Video Example

    • Cut Fastball

    • Cut Fastballs Video Example

    • Slurve

    • Slurve - Cutter - Slider Video Example

    • Power Slurve

    • Fastball

    • Fastball and Slowball Video Example

    • Slowball

    • Power Slowball

    • Screwball

    • Screwball Video Example

    • Power Screwball

    • Changeup

    • Changeups Video Example

    • Changeups 2nd Video Example

    • Fastball Runner

    • Fastball Runners Video Example

    • Power Fastball Runner

    • Fastball Sinker

    • Fastball Sinkers Video Example

    • Power Fastball Sinker

    • Power Fastball Sinker Video Example

    • Rideball

    • Rideballs Video Example

    • Pitch Recognition Quiz

Become Certified

Earn your course certificate from Pitchgrader upon completion !

Each section requires a passing grade of 70% or higher to move onto the next section. You can repeat sections and quizzes as often as you like.

You’ll be given access to your course certificate so you can print a copy for your records. We don’t publish the names of our graduates, but if contacted we will confirm upon your request.