Changeup Pitch Design : Creating a Weapon

Junior RHP Tyler Boisvert during Pitch Design Session
Post University

From amateur to professional baseball, off-speed pitch design has become a primary point of emphasis when developing pitchers especially with the huge rise in fastball velocity across the board. 

Changeups are classified by some of the following characteristics:

  • Fastball Arm Speed
  • Velocity differential from primary fastball of 7-10 mph depending on pitcher
  • Reduction or “Kill” of vertical lift
  • Lower Spin Rate than primary fastball
  • Multiplanar pitch movement (Vertical + Horizontal)

With that in mind, the primary goal of a changeup is to disrupt the hitters timing by creating the “fastball illusion”, in other words, making a changeup look like a fastball as much and for as long as humanly possible. 

Changeup Grips

Predominantly, changeup grip selection is chosen based on primary fastball grip, whether that be four or two seam. The reasoning behind this concept leads back to the primary goal of a changeup, creating a “fastball illusion”. This is not an absolute by any means, spin direction or axis directly influences pitch movement and can be altered on an individual basis based on countless variables such as arm slot, other pitches in arsenal, and desired movement of the pitch in itself. 

For example, I threw competitively from a low ¾ arm slot, resulting in inches of horizontal break or “arm side run”; through trial and error during my career I developed a circle changeup with a two seam grip.

Below is an overlay of a 94 mph fastball and a 85 mph changeup (not the best two pitches to overlay but watch the ball flight of both). Without pitch tracking technology, overlays were not featured or popular at this time, the eye test and video analysis were the primary methods of pitch design to determine pitch characteristics.

Rob Blanc FB/CH Ball Flight Overlay
FB: 94 mph
CH: 85 mph

Choosing between changeup grips is truly a process of trial and error when creating a new or existing pitch, “feel” is a huge component during the process due to the addition or subtraction of fingers on various sides of the baseball with varying pressure on each. 

Here are some examples of various changeup grips with pictures:

Kyle Hendricks Circle Changeup (4 Seam)
Justin Verlander Vulcan Changeup (2 Seam)

Using Rapsodo in Pitch Design

Changeups are difficult to define as far as what “ideal” is when it comes to specific metrics due to the fact that it is truly unique to the individual, in short, there is no one way to design a changeup.

We know for a fact that changeups have a lower spin rate and lower velocity than a fastball, and spin efficiency can vary when it comes to the type of changeup.

Here is a 2 Seam Fastball & Changeup Rapsodo data set from Sophomore RHP Matt Goehrig from this preseason:

2 Seam Fastball
Circle Changeup (2 Seam)

Now, in terms of “pitch tunneling” these two pitches pair extremely well because of a few characteristics:

  • +/- 7 mph velocity differential
  • Lower Spin Rate & True Spin
  • Similar Spin Axis between 1:00 & 1:30
  • -3.0 in of Vertical Lift differential compared to Fastball
  • Similar Horizontal Break @ .6 in differential
2 Seam Fastball & 2 Seam Circle Changeup (SOPH RHP Matt Goehrig)

Keep in mind, the pitches in the overlay above are not pitches featured in the data set, but you may notice in the video how long both pitches hold trajectory before separation.

Here is an overlay of a 2 Seam Fastball & Changeup Overlay from Junior RHP Arik Sypher from this preseason:

Arik Sypher 2S + CH Overlay
2 Seam Fastball
Circle Changeup

In this example of data pairing, we see the pitch velocity decrease yet the pitch spin rate is minimally affected? Yet, we see the spin axis change almost an hour, that directly influences in change of vertical lift and horizontal break.

The best part about pitch design is the ability to constantly change variables creating different results from pitch to pitch, learning from the data and trying again. Messing with finger pressure, grip, intensity, and thumb placement are all contributing tools in designing a weapon on the field.

Especially in amateur baseball, a changeup can become a primary off-speed offering and a weapon before a breaking pitch is even introduced. Coaches, play to a pitchers strengths and develop an arsenal primed for success.






Starting Pitcher Pre-Game Routine : To Each Their Own

We are creatures of routine, from waking up and brushing our teeth to athletes with systematic warm up protocols pre lift or throw, its truly individualized to the fullest extent. 

With that in mind, time and time again I find myself seeing starting pitchers in amateur baseball who do not have a routine, making it up along the way with zero “feel” for what they are supposed to do before their chance to play every five days. That makes sense right? 

From myofascial release to long toss + compression throws, pre start routines vary from pitcher to pitcher, here are bits and pieces I picked up throughout my career from coaches and teammates, to bring you the A-Z guide to having a clue as a starting pitcher. 

Myofascial Release (SMR)

https://www.drivelinebaseball.com/2017/05/mobility-pitching-mechanics/

SMR or Self Myofascial Release can be defined as “manipulative treatment that attempts to release tension in the fascia due to trauma, posture, or inflammation. Connective tissues called fascia surround the muscles, bones, nerves, and organs of the body” (https://www.spine-health.com/glossary/myofascial-release

Now why is this an important piece of any pitchers pre-throwing routine? Recent studies from the International Journal of Sports Physical Therapyand Journal of Bodywork & Movement Therapy have determined that SMR offers the following benefits:

  • Significant increase in mobility and joint range of motion
  • Potential improvement of vascular function 
  • Improved Performance in physical activity 
  • Reduced soreness and delayed onset muscle soreness

SMR can be achieved using a wide range of tools on the physical therapy and sports performance market including some of the most popular: High Density Foam Rollers, Lacrosse Balls or Mobility Balls, Accumobility Products, Percussion Massagers such as the Theragun & Hyperice Hypervolt, and so many more. 

I was a huge believer in SMR late in my career, both pre and post outing, I always felt a tension relief. I used a thick PVC wrapped in tape for higher tension rolling on major muscle groups such as: quads hamstrings and lats; a standard high density foam roller for lesser tension on the major muscle groups including: glutes, IT Bands, and shoulder groupings; and a lacrosse ball for muscle specific rolling such as forearms, bicep, hip flexor and upper traps. 

Today, with the release of Percussion Massagers such as the Hyperice Hypervolt, SMR duration is significantly reduced and has become a huge piece of our pitchers warm up routine here at Post University. 

Resistance Bands

Freshman RHP Chris Torres, going through resistance band routine pre-game

Whether it be Crossover Symmetry or Jaeger Bands or even Silverback Sports Band Routine, pre and or post throwing resistance band usage is a staple of maintaining a healthy and mobile throwing both in and out of season. Resistance band programs, take influences and/or are modeled after physical therapy programs, designed to strengthen, condition, and warmup the rotator cuff and surrounding muscles & tendons in the throwing arm. 

From youth to professional levels of baseball, throwing takes a toll on the body, maintaining levels of strength and mobility in the throwing shoulder and elbow is absolutely essential in regards to injury prevention. 

Personally, I have done both the Crossover Symmetry and Jaeger Band resistance band programs, both which I liked and do not have a specific preference. Crossover promotes scapular movement and overall shoulder health, where Jaeger Bands are baseball specific movements through and through. 

I highly recommend you add resistance band training into your pre and post-game throwing routines, simply put, throwing a baseball is a strenuous movement on the shoulder and elbow, why not give yourself a better chance to stay in one piece with a simple band routine?

Plyocare Routine

Senior RHP Mike Munson, performing a Pivot Pickoff with 1KG Green Driveline Plyoball

But Rob, weighted balls are DANGEROUS!! I couldn’t care less if you decide to ignore or bash new age training methods that make you better, do your research before you say something outrageous. Yeah and velocity CAN’T be taught, time to get out from under that rock. 

Anyways, unfortunately for me, ballistic training methods didn’t surface till the tail end of my collegiate career and didn’t make a major impact on me as a player until professional baseball. Being an early adopter of Driveline Baseball throwing methods through remote training, I was looked at like an absolute nut job throwing sand filled rubber balls as hard as I could into a bullpen wall before throwing on the mound. 

There are countless studies and articles citing the benefits of underload/overload training in various sports, especially baseball, and how they relate to improved performance and injury prevention in throwing athletes. Check out Driveline Baseball’s blog, educate yourself kid. 

I have always found that ballistic throwing drills prior to baseball specific throwing was the absolute best way for me to warmup, a way to movement prep while increase range of motion using overload and underload plyoballs. 

With that in mind, I’m not going to go into a multi-page explanation about why you should use weighted balls, but I will give you the same plyoball routine I used pre outing during my career:

Reverse ThrowPivot PickoffRoll InRockerWalking Windup
1×10 2Kg1×10 2Kg1×5 1Kg1 x 1-2 450g1 x 1-2 450g
1×10 1Kg1×10 1Kg1×5 450g1 x 1-2 225g1 x 1-2 225g
  1×5 225g1 x 1-2 150g1 x 1-2 150g
   1 x 1-2 100g1 x 1-2 100g

Long Toss

Senior RHP Tyler Kovalewich, long tossing pre start

A staple in a majority of pitcher’s warm up routines is long toss, AKA “extension throws”, AKA “airing it out”, and so many other random phrases to describe progressively throwing for distance created over the last few decades. 

Long Toss has shown in various studies to work by strengthening the muscles of the rotator cuff and shoulder, elbow flexor grouping, in an eccentric (muscle lengthening under specific load, in this case a baseball) fashion. During the extension phase of long toss, we are essentially lengthening the muscles in our throwing arm, improving joint range of motion, STRONG long muscles have potential for more energy production. Repetitive overload of the muscles of the throwing shoulder and elbow result in strengthening of the tissue in a concentric fashion forcing the body to recruit global muscle groups and throw the ball harder, and in this case further.  

With that being said, without PROPER eccentric strength in the throwing arm, stresses on the throwing arm are increased during long toss compared to throwing off of a mound. A 2011 study conducted by the Journal of Sports and Orthopedic Physical Therapy concluded that elbow and shoulder stresses increased during long toss during the “late cocking” and “follow through” phases of the throwing motion compared to throws from the mound. (https://www.jospt.org/doi/full/10.2519/jospt.2011.3568)

Isn’t that the point though, to increase stresses on the throwing arm forcing adaptation? 

I was a huge believer in long toss, was a huge influence on my development as a pitcher especially because ballistic throwing methods were at that time not a popular training modality. Long toss is an essential tool in a warmup and/or training setting for baseball players of any position in a structured approach. The best part about long toss is the idea that you, the athlete, determines the RPE (rate of perceived exertion) and what arc or lack thereof is used works best for you in various settings whether that be pre game or offseason throwing settings. 

Compression Throws & Flatground Work

Senior RHP Mike Munson, throwing extended flat ground changeups during practice

Post extension phase of long toss, compression or “throws on a line” are often the next step in any given pitchers pre game routine while reducing distance with each throw. Now that the muscles of the throwing shoulder are lengthened and ROM is improved, promoting intent and pitching specific movement is essential to game preparation. 

Pulldowns or “compression throws” are an exceptional way to create efficient movement patterns that directly translate to the mound. Lead leg block is argued to be one of the most influential biomechanical checkpoints in the pitching motion that directly impacts pitch velocity and pitch command.

Individual pitchers have their own routine before they head to the bullpen to throw on the mound, I was like many others, always incorporating flatground work before heading to the slope. 

It is common for starting pitchers to throw extended distance changeups with momentum (shuffle) to create “feel”. Changeup arm speed is essential to success of the pitch in game, creating the visual component of a fastball out of the hand and for an extended distance toward home plate. Having a sense of sequencing through release, controlling the relationship and timing between wrist flexion and extension, all contributing to the end result of execution. 

Pre mound work flatground sessions accomplish a wide range of individual goals, each pitcher with a specific emphasis in mind. For example, I always threw flatground sessions at 45-50 feet, I always felt that it created an stress on driving pitches through the zone prior to hopping on the mound and throwing from 60’6”. Guys use flatground work to create “feel” for their off-speed pitches, execution of location, “feel” for extension through release, and a million other specific focal points; flatground sessions are truly to each their own. 

Stepping on the Mound: Pre Game Bullpen

Senior RHP Mike Munson Bullpen Session : Changeup

On to the final piece of a starting pitcher’s pre game routine, stepping on the bullpen mound. Every single elite level pitcher has a set routine, a specific pitch sequence, a goal in mind; execution. This is a concept I struggled with my entire career, I saw pre game mound work as a part of the warmup just to create feel for pitches, with no specific goal in mind. 

Execution of fastballs and primary off-speed pitches in any count is the goal right? With that in mind, wouldn’t we want to prime ourselves during a pre-game bullpen to execute those specific pitches? 

This concept was completely foreign to me a bulk of my career, up until professional baseball. Being effectively wild played during my collegiate and professional career, with only one true primary off-speed pitch being a change-up, so I got away with missing spots constantly because of the combination of velocity and movement. 

It is absolutely essential as a pitcher to have a routine as soon as you step on the mound prior to the game. Specific number of pitches to location, pairing fastballs and off-speed to similar spots, simulation of advantage pitcher counts, and replication of hitter sequencing whether that be right or left handed hitters. Set yourself up for success!

Takeaways

The game has changed, velocity is constantly on the rise with the increase in ballistic throwing methods and the concept of pitch design has brought pitchers to another level; development has become a primary focus for players of all ages rather than increasing the amount of games played especially with the rise of player metrics and showcase baseball. 

Creating a routine as a starting pitcher plays a huge role in in-game success, staying consistent setting the table for outing after outing being positive with a constant trend of improvement. We have so many tools as players to choose from pre-game from SMR with new age massage tools to extended distance change-ups, each and every pitcher has their own step by step process.

Each long toss session with specific distances with various number of throws, distances of flat ground work anywhere from 40 to even 60 feet; we have the freedom as pitchers to do whatever “feels” right to get us ready for competition.

Finding out what works for YOU is a process of trial and error, we are all creatures of developed habit unique to us. 

Arm Action: Navigating The Opinions

It’s about time to address the never-ending debate among coaches, is there an “ideal” arm action both throwing and non-throwing arm for baseball players? Simply put…we have no idea, and to create absolutes is simply moronic, yet in the baseball coaching world everyone seems to have it figured out. 

Here’s my take on some methodologies about upper body throwing mechanisms I have seen, and so called “anatomical absolutes” and how they relate to energy movement throughout the kinetic chain.

https://www.beyondtheboxscore.com/2018/7/12/17563402/cleveland-indians-trevor-bauer-war-strikeouts-movement-tunneling-deception-sequencing-movement

If you haven’t read Driveline Baseball’s “Hacking The Kinetic Chain” and their section about Upper Body throwing mechanics, specifically The Arms: Separation, Pickup, Disconnection, Elbow Spiral, Driveline, Recovery on pages 24-35 you need to figure it out and educate yourself. Their programming and mentorship from the one and only @flamadgaf (give him a follow on Instagram) saved my career and got me back to throwing low to mid 90’s after years of being “domed up” after labrum surgery. 

I had an awesome conversation with Anthony Brady, biomechanist at Driveline Baseball @baseballfreak12 (follow on Instagram) , about the relationship between maintaining elbow flexion inside 90 degrees into the driveline phase and reduced elbow valgus stress. To translate that into simpler terms, I wanted to know his thoughts on if maintaining elbow position of the throwing arm at or inside 90 degrees showed reduced stress on the elbow? 

To my surprise over the course of a 20 minute conversation, he was actually investigating that concept and expanding it even further, how the “timing” of kinetic checkpoints could be more influential on reduced stresses then the actual positions themselves and how throwing drills can be improved and adjusted to impact elbow stresses. The blending of biomechanical data and throwing checkpoints, this was when his biomechanical skeleton overlays and analysis hit the web, if you haven’t seen them they are a must. Here’s a still of one below:

https://twitter.com/BaseballFreak_9/status/1082413788018528258

Driveline Baseball breaks down arm action into its simplest form, for me it put a lot of my thoughts into words and expanded it 10 fold. Here’s a quick summary without getting too technical of the six phase progression of arm action:

Separation:Throwing hand separation from glove downward

Pickup:Forearm and wrist move upward either into elbow retraction or toward second base

Disconnection: Scapular retraction of lead arm in unison with throwing arm without opening front shoulder 

Elbow Spiral:At front foot strike, forearm close to vertical with hand in neutral position, elbow begins slightly upward path into external rotation

Driveline:From external rotation into ball release, maximize time between external rotation and internal rotation of throwing shoulder

Recovery: Accept force into deceleration

Video From First Bullpen of Offseason 2015

Here’s a frame by frame video of me throwing during the offseason going into my second year of professional baseball in the Frontier League. Can you see all of the six phases of arm action?

There are so many ideas and arm action concepts publicized on social media, so let’s address a few key ones and stir the pot. 

https://weei.radio.com/blogs/rob-bradford/how-red-sox-fixed-joe-kelly-just-time

“The Pocket” originally publicized by Dave Coggin of PFA @pfastrong1 with poster-boy Joe Kelly, has created a ton of buzz in the baseball world. In short, the concept is based off an efficient pickup phase, maintaining a degree of elbow flexion of 90 and below into the following phases of the throwing motion. I am a fan of this concept because of its ability to create movement that is easily replicable, producing consistent results regardless of pitch type. Dave has developed a ton of plyo throwing drills to reinforce this concept and promote proprioception from youth to professionals. Although this a theory based on subjective information, I think it is beneficial for encouraging proper pickup phase which in turn follows suit throughout the movement.  

“Equal & Opposite” a concept that was publicized by coaching legend Tom House of NPA (National Pitching Association) and creator of the Velocity+ Arm Care and now rebranded Throw Smart throwing program. I participated in the Velocity+ Arm Care program at Keystone College, where I pitched for my final year of NCAA eligibility and then coached the following year. This theory based on subjective information can be immediately discredited from being an absolute by watching a Major League Baseball game…see 100 mph arm Tyler Glasnow below…

https://www.draysbay.com/2018/8/1/17641712/angels-2-rays-7-oh-we-love-it

In an effort to prevent front shoulder rotation, the idea of bringing the chest to the glove was born, talk about replacing your glove with a huge stop sign. This became popular in football with guys such as Tom Brady and others. I have literally seen instructors teach pitchers to control their front arm like this… Does this position look like any pitcher you have ever seen?

https://www.stack.com/a/heres-why-its-really-really-hard-to-sack-tom-brady(Photo by Maddie Meyer/Getty Images)

Here’s National League Cy Young winner Jacob Degrom at similar release…

https://www.nj.com/sports/2018/09/mets_jacob_degrom_national_league_cy_young_award.html (AP Photo | Nick Wass)

With that in mind, two completely different sports, with two athletes with completely different physiological makeups and biomechanical checkpoints. Yet, disconnection of lead arm is simply not achievable by forcing the “torso to the glove” or insert random external cue. I’m not going to go into stationary drills used by a certain association promote excessive shoulder abduction, and resemble the “Inverted W”, a phenomenon that shown to be problematic. (Driveline Baseball wrote a great blog post addressing this theory, go check it out https://www.drivelinebaseball.com/2010/09/strasburg-the-inverted-w-and-pitching-mechanics/)

To finish out my short rant about Tom House and his methodology of absolutes, his weighted ball throwing program is an absolute disaster and here’s a few reasons why. 

1. Max effort holds & throws multiple days per week

2. Little to no individualization 

3. No structured recovery protocols 

4. No emphasis of strength training 

5. Max effort throw with no ball or just towel

6. 2lb, 1lb & 2oz “Run and Gun” throws, ummm what

Who knows if the newly rebranded “Throw Smart” Tom House throwing program is altered from what it used to be, I sure hope so, max effort 3+ days a week…no thanks, luckily I am still intact. 

Now for the throwback throwing 101 external cues such as “show the ball to second base, centerfield, ect.”, the staples of the old school throwing method, that is still in use today by youth coaches nationwide. Looking at old school cueing and the sequence of events that follow:

 “Leg Lift and Balance Point”

“Ball down and away”

“Power Position (Lead elbow toward target, Baseball Facing Centerfield)

“Throw and Tuck the Glove” 

 “Finish out front and in Fielding Position”

This series of “mechanical checkpoints” are often labeled with numbers in a group setting in an effort to teach to the masses. Here are my thoughts…

Does momentum result in higher throwing velocity? YES, Velocity = Mass x Acceleration. So as pitchers, why wouldn’t we try and use momentum to our advantage down a slope? So, in theory, a “balance point” would be a break in momentum would it not? 

Now, “ball down and away”, promoting elbow extension toward the ground or second base with itself not being an issue, but with athletes without levels of proprioception we may see excessive pronation or supination into elbow extension. 

The infamous “power position” in itself actually being a piece of the kinetic chain, proper level of shoulder abduction, and the forearm being between 45-90 degrees ideally at foot strike. Yet, there is no emphasis in this sequence on the pickup phase, with zero emphasis on scapular retraction whatsoever. 

Tucking the glove, or chest to glove, we covered earlier when talking about equal and opposite, but, “finish in a fielding position”, come on man. Talk about teaching a pitcher to not “lead leg block” and force excessive torso flexion toward the ground is just absurd. 

According to Baseball Reference, during the 2018 MLB Regular Season, pitchers were involved in 5.31% of outs made in the field (Putouts & Assists), a whopping 6,926 out of 130,467 outs made. https://www.baseball-reference.com/leagues/MLB/2018-specialpos_p-fielding.shtml

I’m sure there are plenty of you reading this blog post being like:

“Way to teach players to not control their front arm” 

“Look at this major league pitcher with his glove in front of his body” 

“Throwing like that will get you hurt!”

“PFP needs to be a priority”

I’m going to leave all the readers with this: Absolutes. A death sentence for any coach without objective information backing up claims. Coaches, as much as you think you know, you don’t. A few years ago I thought I knew a good amount about throwing and the movement involved, guess what, I didn’t, and I am still learning EVERY SINGLE DAY. 

Additional Sources:

Hacking The Kinetic Chain (Driveline Baseball) Matt Daniels & Kyle Boddy

Slider Development: The Process of Trial & Error

With velocity on the rise in every level of the game, hitters are making the adjustment to combat this change, power vs power. The access to technology such as Rapsodo, Trackman, Diamond Kinetics, Flight Scope, and others has given pitchers the upper hand with the ability to design individual pitches. 

Being able to pair off-speed pitches with fastballs, holding trajectory for extended distance before separation or referred to the concept of  “Tunneling”, is essential for effective pitch sequencing. Identifying what pitch characteristics match efficiently with a pitchers existing arsenal determine which off-speed pitches pair best with the primary fastball. 


Sliders prototypically work within a spin efficiency range of 15-30% based on the pitch characteristics. Those characteristics being combinations of gyro, side, back, and top spin. Velocity typically creates a differential of  8-10 mph from the primary fastball, placing it in the same category of a typical changeup in regards to velocity. Spin Rate & True Spin can be up and down the spectrum, resulting in changes in vertical & horizontal break based on spin direction and characteristics as mentioned earlier. 

Being new to Rapsodo technology having a strictly subjective coaching experience utilizing internal + external cueing, grip adjustments paired with finger pressure, and iPhone video being the primary tools in my tool box upon arrival to Post University, there was a large learning curve with the data analytics and how it applied to pitch design. 

Above is an example of a slider thrown by Post University RHP, Tyler Boisvert, from today’s short box pitch design Rapsodo session. What we are looking for when developing a slider, is to have a differential between vertical and horizontal break, and a spin axis between 7:00 & 9:00 for RHP. Given, this is a lower intent slider so the spin rate is down to 1500 RPM compared to a maximal intent slider featured below at 2011 RPM during pitch design bullpen.

Through the pitch design process, the biggest challenge was to adjust the pitch characteristics to influence change from identifying as a sweeping curveball to a slider with improved horizontal break without the major kill of vertical lift. 

Pitch Design is a never ending process of trial and error, grips was the first point of attack in making the transition in off-speed identification.  Adjustments in thumb placement was a huge point of emphasis in creating horizontal break without introducing major pitch cues. Especially being a ¾ arm, the tendency to prematurely round the baseball was frequent early in the design process. 

“Hook the catcher’s left heel”, a primary internal cue used with Tyler to prevent wrist extension through release and force a degree of wrist flexion to fight vertical lift out of the hand to pair with the primary fastball. The video is an example of who the internal cue affects the spin direction of his slider:

480 FPS Slider
Shot w/ Sony RX100V

Slider results from first outing down in West Virginia @ University of Charleston:

Pitches: 17                                          

Strike %: 88.0% (15/17)                      

Swing & Miss %: 41.2%                       

Take for Strike%: 47.1%                      

Contact %: 11.8%                                

Average Slider Velocity: 73.3 mph     

(All % are rounded up to next decimal point)

Being a beginner in the pitch design world utilizing data analytics, things can be overwhelming and frustrating trying to crush data and implement it into a pitch design session on the fly. Each and every pitcher is DIFFERENT, cues, or lack there of, and grips that work for one guy cannot be implemented on a mass scale. Some examples to take into account when developing a slider into an athletes arsenal:

Does a slider pair with other pitches? Is there more vertical lift than horizontal movement? Does it pass the eye test?

Utilize video, whether it be on a iPhone or a high definition slow mo camera! Let’s be honest we all can’t see everything, why not make the process easier on yourself? Trial and error, test and retest, over and over again.

Follow me on Twitter & Instagram @coachblanc !!

Sources & Influence:

Rapsodo Baseball (Post University Data)

Driveline Baseball (https://www.drivelinebaseball.com/2017/04/basics-pitch-design-using-rapsodo/)

RPP Performance (http://rocklandpeakperformance.com/pitch-development-and-design-sliders-part-4/)

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