jericho scott

Why 9-year-old Jericho Scott Can Throw a Fastball and What You Can Do to Increase Your Velocity

9-year-old Jericho Scott has an exceptional ability, throwing a fastball.  The Little League pitcher was banned from pitching in his youth baseball league in New Haven, CT this summer due to his “excessive” 40-mph fastball

To help the non-physicist reader, that translates to a 95+-mph fastball on an adult-sized baseball field. 

While this story received a lot of attention in the media this summer, it has started to cause a backlash of youth players and parents seeking to gain an edge in their pitching performance.    
It seems that every strength and conditioning facility, program, and camp claims to be able to help develop “5+ more mph” or similar claims. 

These are very bold statements, in my mind, and may be much more harm than good, especially if they utilize techniques that may not be suited for each player at different maturity levels, such as aggressive strengthening programs, heavy plyometric programs, and weighted-ball throwing programs.

The Two Main Reasons Jericho Scott Can Throw a 40-MPH Fastball

  1. Physical Development – Probably the most important factors are his physical attributes, including his size and physical maturity in relationship to his peers (I would bet he has longer fingers than his peers too, but that is another topic).   Also, I have never met Jericho, but I would bet that he threw a lot so far in his life and that he was throwing well at an early age.  In order to throw a baseball, you need humeral retroversion (Crockett AJSM ’02), that is you need to achieve excessive amounts of shoulder external rotation, which is achieved by having a large amount of humeral retroversion.  Studies have shown that throwers with excessive ER also have a corresponding amount of humeral retroversion.  This develops when you are a child and you throw while your growth plates are open (Meister AJSM ’05).  This is also why girls used to “throw like a girl.”  Females did not participate in youth baseball in the past so they did not throw a lot while their growth plates were open.  “Throwing like a girl” basically just means that you can not achieve a lot of shoulder ER.  Sorry guys but males that did not throw a lot as a child will also throw like this.  Crockett (AJSM ’02) showed this when assessing retroversion in a group of soccer players that did not play baseball when growing up.  If you don’t have this retroversion and ER, you can’t throw a fastball.
  2. Biomechanics – The second most important reason that Jericho can throw so fast is his mechanics.  The act of throwing is a complicated process that requires a precise interaction of your entire body.  Your body must work towards developing and transferring energy in a fashion that allows the ball to explode to the plate.  Any inefficiency in your mechanics will lead to “energy leaks” that will waste your developed potential energy.  Even professional Major League Baseball pitchers will see fluctuations in their velocity that is caused by inefficient mechanics, even subtle changes that can not be detected by the naked eye. 

Notice that the two main reasons that Jericho can probably throw with such velocity have nothing to do with his strength, his workouts, or his training programs.  

Don’t get me wrong, I believe that you need to be strong to throw well and to stay healthy, but this is not the reason why most youth can throw well and others can’t.  This is why I wonder when I see advertisements for youth strength and conditioning programs that are designed to increase velocity.  I know it is a marketing trick because no child is going to get as excited about injury prevention as they are performance enhancement.  I am certain that there are several amazing programs out there that are safe and effective, and I would never discourage you from seeking out these programs to maximize your body’s potential, but I caution that you understand that there are many different types of programs available.

What Can You Do to Increase Your Velocity

  1. Play baseball as a child.  You don’t need to pitch at an early age, but you need to play a lot of baseball to develop retroversion.  If you participate in baseball at an early age you will develop retroversion.
  2.  If you want to take the extra step and seek the advice of a professional, try to work with a baseball/pitching coach to develop good pitching mechanics at an early age.  This will help you learn how to pitch (rather than throw) effectively and give you a competitive edge in your league.
3 replies
  1. Patrick Willson PT, COMT, CSCS
    Patrick Willson PT, COMT, CSCS says:

    Very true. getting the ball to the plate without looking at a hawk in the trees or waving to their parents is a challenge! I will continue to pass on the knowledge of not overusing the kids at a young age. It is tough because the league still follows the innings pitched format vs a pitch count. Resistant to change as are most. Thanks for the advice and I will look into the Tom House programs. Keep up the work with this site. It is excellent.

  2. Mike Reinold
    Mike Reinold says:

    Thanks for the question Patrick. I agree with you regarding mechanics. We typically say that you should teach young children, like 8-year-olds, the very basics and then as they get older seek to work one-on-one with a pitching instructor. Often times young children will even try to mimic the mechanics of some of the MLB players that they follow. This could be good or bad without proper guidance. I know that Tom House has some interesting instructional programs for youth pitchers. He tries to integrate science into his teaching.

    That being said, 8-year-olds are young and should probably just try to have fun and develop themselves athletically. There are not as many MLB pitchers that pitched when they were 8 years-old as you would think. Kids that are really good in Little League tend to be overused and end up with injuries. It is the good athletes, the shortstops for example, that end up learning to pitch in high school and tend to do well in my experience.

    Hope that helps, thanks for reading,
    MR

  3. Patrick Willson PT, COMT, CSCS
    Patrick Willson PT, COMT, CSCS says:

    Great site Mike! I have a question for you. I work with a lot of little league pitchers/throwers and have spoken to my town’s little league regarding injury prevention. My question would be solid mechanics have been proven to improve pitching on all levels is there a program or could you point me towards some teaching material to teach kids who are first beginning to pitch? Most of these kids are about 8 yrs old and I know the coaches find this difficult. I guess to make it more clear what would be the basics to focus on with the kids picthing motion? Thanks in advance.

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