What is the Most Effective 4-Seam Tilt Axis in MLB?

There is certainly no shortage of data available from MLB for on-field performance by pitchers and players. In this article, we have combined data from several sources, including FanGraphs and Baseball Savant, to help identify the most effective pitch movement patterns in Major League Baseball. More specifically, we analyzed the performance of 4-seam fastballs from major league pitchers during the 2021 season (392 right-handed), by comparing slugging averages against horizontal, vertical movements and tilt axes of fast baseballs.

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How did our Pitchers do this Spring?

Before we begin, we would like to extend our congratulations to Alex Kranzler (junior from Old Tappan High School) for earning All-State NJ.com “Player of the Year” honors.  This is a significant accomplishment and it’s a credit to his hard work these past few years at RPP.  He has been pitching, throwing and training at RPP since 2019 and probably spent over a total of 150 hours training this past off-season.  Alex’s fastball was up to 93 mph this spring.  Congrats Alex (as a side note Sean Hard also from RPP earned the same state-wide honor in 2021, he was up to 95 mph).

Ok, so how did our pitchers do this spring?

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Best of 2021… Strength Training, Pitching and Hitting Articles

It’s been even another crazy year for everyone, but that didn’t stop us from continuing our efforts to develop great ball players while educating the community at the same time. A few years ago, I started a series in which I posted the most popular blogs of the year. These are the articles that received the most traffic, according to our hosting statistics. It seems to be a favorite of everyone, so here we go again with the most popular baseball articles of 2021. Continue reading “Best of 2021… Strength Training, Pitching and Hitting Articles”

A Week in the Life of an RPP Data Intern

I joined RPP Baseball as a Data Intern this past September, and was very excited about the opportunity to learn all of the different aspects of applying technology to training pitchers and hitters. Little did I know how all-encompassing it would be. The process of working and training daily with the latest technology has proved to be an amazing experience for my personal development as a professional in this industry. Whether I am working with Rapsodo Pitching, Rapsodo Insight, Blast Motion, HitTrax, K-Vest, or assisting with our bio-mechanist on a full blown Qualisys motion capture system, I am amazed at the impact that data and technology can have on player progression and talent maximization. I decided to write this article, not only to summarize how much I have learned in this position, but also to help provide a road map for all those that may come after me. Continue reading “A Week in the Life of an RPP Data Intern”

Wondering What Happens to all the Data from Motion Capture?

Today, we’re lifting the hood a tiny bit…. Much is written about the value of data and its potential application to training pitchers. But a full-blown motion capture system takes this type of discussion to a whole new level. A typical mocap session involves attaching over forty markers to a pitcher’s body. After a pitch is thrown off the mound, the system combines the views of a dozen or more cameras to create a 3D avatar of the athlete, which then allows for preparing angular measurements of various body parts, up and down the kinetic chain.  What happens to all that data from the avatar is what we are going to review here…

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How Much Scap Load… What is Efficient?

Scap Load

Horizontal shoulder abduction, scap load, elbow angle are terms originally coined by Paul Nyman and which refer to the retraction of the shoulder blade (scap) prior to the arm cocking phase. Call it whatever you like, but the degree to which your scap “loads” matters. Horizontal abduction helps with layback and setting up the rest of the arm action once the lead leg blocks, decelerates and sends energy up the chain. Continue reading “How Much Scap Load… What is Efficient?”