## blog

## 2020 off-season

## 2019 blogs

## Hitter Reports- Built for Coaches

I made this report in R Markdown, but decided to break it down piece by piece to provide some general notes and commentary about the...

## Blog-Individualized Movement & Mobility Programming

OnBaseU The OnBaseU hitting screen is made up of twelve different movement quality tests. After screening an athlete, coaches then have a...

## Improve Your Environmental Design for Less Than $10

One of the easiest and most impactful additions a coach can do to the cage is to mark the foul lines.

## Launch Angle Standard Deviation as a Performance Indicator

Here's a quick project I took on this afternoon. I wanted to look at the correlation between the standard deviation of a hitter's Launch...

## Blast Metric Correlations

Here’s an example of a correlation analysis I ran of all of Blast motions sensors metrics using Brady Volmering's readings. It's a small...

## Player Development Implications of Hitter Streakiness

Yesterday I got into an interesting discussion after Bobby Tewksbury proposed the topic of measuring a hitter's "streakiness". Daniel...

## Analyzing Blast Motion Metrics-Excel Tutorial

A quick tutorial to help coaches visualize Blast Motion performance trends using Excel.

## Optimizing A Hitter's Training Economy

Last night I mentioned that players need to spend their training economy wisely, and one of my big principles for hitters over the last...

## Plate Discipline Clustering- Part 3

In part 2 of this series I analyzed the first three clusters of hitters based on 5 different plate discipline metrics; O.Swing, Z.Swing,...

## Plate Discipline Clustering- Part 2

Without further ado, let's get to the fun part of analyzing the data clusters. In this post I will analyze the first three clusters. But...

## Plate Discipline Clustering- Part 1

I recently decided to run a cluster analysis of plate discipline metrics(from FanGraphs) for all qualified batters in 2018. The idea...

## Split Grip- Blast Data

*Disclaimer- This data set is very small and only from one player. The findings right now are only speculative until a larger sample can...

## Blast- Player Splits

Been doing a lot of box plots lately and for good reason. I think them a lot and think they are simple but allow for a very quick way to...

## Early Connection vs. Vertical Bat Angle

We are still working with data captured from our Blast motion sensors. Today I plotted two metrics, Early Connection and Vertical Bat...

## Blast Data and R- Attack Angle by Bat Type

Using R can be a great way to quickly see how different bats or bat modifications are effecting a certain aspects of a players swing. Of...

## Trout Launch Angle Box Plot

A couple weeks ago I did a histogram of the distribution of Mike Trout's launch angles by pitch type in bins of 5 degrees. However, I...

## Trout- Spin Rate by Pitch Type

Below is a visual of spin rate ranges by pitch types thrown to Mike Trout in 2018. While this particular plot is very vague and not very...

## K% vs ISO and wRC+

A little double plot action for this post. We do see a correlation between K rate and Isolated Power. Essentially, the more of a...

## WRC+ vs Pull %

Was expecting a higher correlation between pull % and WRC+. As you can see from the graphic there is very little. Everything must be...