Effective Velocity

barbed wire Bob

crippled by fear
SoSH Member
A coworker sent me this article from SBNation.  It basically covers a theory developed Perry Husband that tries to explain why low velocity pitchers, such as Koji Uehara, are effective.
 
 
Effective Velocity is made up of six tenets, some of which are commonsense and already utilized by successful pitchers at the game's highest levels, others so complex that even major league coaches have difficulty grasping them. It starts with the idea that all pitches are not equal — even those that appear to be identical on the radar gun.
 
It hinges on response time. Husband's model is based on the arc of hitters' swings, and the understanding that bats must move farther to reach pitches on the inner part of the plate than on the outside edge. Put another way, a batter can hit an outside fastball as it crosses the plate, but to make solid contact with an inside fastball, he must reach it much sooner — up to 2 feet in front of the plate — which requires the hitter to move the bat a greater distance in less time. With this detail in mind, it makes sense to build an approach based not on a pitch's radar speed, but how quickly the man standing in the batter's box can react to it.
 
This is the basis for the "effective" portion of Effective Velocity.
 
 
EV breaks the strike zone into nine regions, each having a different effect on how hitters perceive a given pitch. Based on a hitter's need to reach pitches close to his body more quickly, Husband calculated that reaction time to a 90-mile-per-hour pitch is closer to that of a 93-mph pitch if it runs inside (96 if it's high and tight), and drops to 87 mph if it's placed on the outside edge of the plate (85 if it's low and away).
 
There is an imaginary stripe that runs diagonally across the strike zone, from the batter's feet to shoulder level in the opposite batter's box, where a pitch's EV equals its actual speed. Husband calls this the Zero Line. He calculated that for every 6 inches the ball moves closer to the hitter from that line, it picks up 2.75 EV mph; for every 6 inches it moves away, it loses an equivalent amount. This gives strikes thrown at identical speeds on a given horizontal plane about a 6-mph fluctuation in reactionary speed from one end of the strike zone to the other. Add vertical differences into the equation and that spread can easily double, all for pitches that are thrown at the same actual speed.
 
Anyway, I thought it was rather interesting.
 

TheGoldenGreek33

Member
SoSH Member
Oct 21, 2007
1,934
Maybe I'm being slightly obtuse here, but I don't quite understand what his point is, or rather, what the author thinks about this is new information.
 
edit: This is the problem with 90 percent of the analytics crowd. They do all this research but shed minimal light about what is actually meaningful.
 

DJnVa

Dorito Dawg
SoSH Member
Dec 16, 2010
54,051
TheGoldenGreek33 said:
Maybe I'm being slightly obtuse here, but I don't quite understand what his point is, or rather, what the author thinks about this is new information.
 
edit: This is the problem with 90 percent of the analytics crowd. They do all this research but shed minimal light about what is actually meaningful.
 
His point is that even though a pitcher might only throw, say 90 mph, if he locates it consistently on the inside corner, the batter has a lot less time to react to that pitch than if it was 90 but over the plate.
 
It may speak to why some guys can get swings and misses on what seem to be average fastballs, while others get pounded.
 
Maybe you can find guys with subpar heaters, and work with them on location, location, location.
 

seageral

New Member
Aug 2, 2010
1,269
Does Koji actually only throw his fastball inside though?  I'm not sure where to find that info, but anecdotally I don't recall him never throwing outside.
 

semsox

Member
SoSH Member
Mar 14, 2004
1,743
Charlottesville
I recommend that everyone actually read the full article, if nothing more than food for thought. While the notion of location is one of the points made in the article, the other (which is definitely the more interesting) is the sequencing portion. There is an anecdote in the middle about Kelvim Escobar, who possessed a 97 MPH 4-seamer and 92 MPH 2-seamer, very good raw stuff by any objective measure. However, because of the manner and location in which he used those two pitches, rather than the pitches complementing each other and leading to a large delta effective velocity, he threw them with a canceling effect, where the actual delta effective velocity was minimal, leading to very good offensive production against what is in theory very good raw stuff.
 
The real primary tenant of effective velocity doesn't seem to be to simply throw pitches only in certain portions of the plate. It's to use the sequencing and location of your different pitches to maximize the delta effective velocity within an AB. A large difference in effective velocity from pitch to pitch makes it extremely difficult for the hitter to adjust, leading to poor offensive performance.
 

barbed wire Bob

crippled by fear
SoSH Member
seageral said:
Does Koji actually only throw his fastball inside though?  I'm not sure where to find that info, but anecdotally I don't recall him never throwing outside.
 
The information is available on BrooksBaseball.net which is an excellent resource for questions like this (thanks jnai).  Here is Koji's pitching card   If I'm  reading the zone profiles right he seems to prefer throwing more outside than in.
 

Sprowl

mikey lowell of the sandbox
Dope
SoSH Member
Jun 27, 2006
34,603
Haiku
seageral said:
Does Koji actually only throw his fastball inside though?  I'm not sure where to find that info, but anecdotally I don't recall him never throwing outside.
I can barely remember him throwing it inside to a leftie. He'll throw it outside to most batters, often enough he'll throw it low, every so often he'll throw it well above the letters, but inside hardly ever...
 

TheGoldenGreek33

Member
SoSH Member
Oct 21, 2007
1,934
DrewDawg said:
 
His point is that even though a pitcher might only throw, say 90 mph, if he locates it consistently on the inside corner, the batter has a lot less time to react to that pitch than if it was 90 but over the plate.
 
It may speak to why some guys can get swings and misses on what seem to be average fastballs, while others get pounded.
 
Maybe you can find guys with subpar heaters, and work with them on location, location, location.
I understood that, but again, what new information is he uncovering here? Yes, pitching inside is important. Yes, location is the most important part for any pitcher.

Whatever.
 

Reverend

for king and country
Lifetime Member
SoSH Member
Jan 20, 2007
64,446
TheGoldenGreek33 said:
I understood that, but again, what new information is he uncovering here? Yes, pitching inside is important. Yes, location is the most important part for any pitcher.

Whatever.
 
The point is that the "gun speed" of a pitch shouldn't be considered in a vacuum, even as a raw ability. It's analogous to the "discovery" of how much difference the distance of the release point of the pitcher makes for understanding how nasty a pitch will be for a given speed.
 
The insight in that stuff is that the point isn't what we have so long obsessed over, speed, but rather, the key is time. So while we've always known location is, obviously, important, we have a new additional reason and aspect of location to think about, specifically, for a given measured velocity, how does location affect the time to the theoretical point of contact? That's actually a really big deal.
 

PaulinMyrBch

Don't touch his dog food
Lifetime Member
SoSH Member
Dec 10, 2003
8,316
MYRTLE BEACH!!!!
It's not necessarily a new concept as I've heard this from different coaches we've come across over the years. I'm not particularly impressed with it. It's one thing to say you have to move the bat farther to hit an inside pitch, but is that really true? You stay tight, keep your hands in, rotate your hips and when you're on the ball you release your hands. The outside pitch you have to quiet the rotation a bit, take your hands to the ball, and release the hips almost simultaneous to contact (or slightly before). A swing isn't linear, which is where this analysis goes south for me. 
 
The ball path is linear, the swing is rotational, and you use a different type of swing to hit an inside pitch versus an outside pitch. I don't think going and getting an inside pitch is particularly difficult, and if you ask a good hitter where he'd rather see a fastball, inside black or outside black, the answer is going to be overwelmingly "inside". The sequencing information is somewhat interesting, but again, I don't put much stock in it. A swing on an inside pitch isn't 3 feet longer than a swing on an outside pitch. 
 

Reverend

for king and country
Lifetime Member
SoSH Member
Jan 20, 2007
64,446
PaulinMyrBch said:
It's not necessarily a new concept as I've heard this from different coaches we've come across over the years. I'm not particularly impressed with it. It's one thing to say you have to move the bat farther to hit an inside pitch, but is that really true? You stay tight, keep your hands in, rotate your hips and when you're on the ball you release your hands. The outside pitch you have to quiet the rotation a bit, take your hands to the ball, and release the hips almost simultaneous to contact (or slightly before). A swing isn't linear, which is where this analysis goes south for me. 
 
The ball path is linear, the swing is rotational, and you use a different type of swing to hit an inside pitch versus an outside pitch. I don't think going and getting an inside pitch is particularly difficult, and if you ask a good hitter where he'd rather see a fastball, inside black or outside black, the answer is going to be overwelmingly "inside". The sequencing information is somewhat interesting, but again, I don't put much stock in it. A swing on an inside pitch isn't 3 feet longer than a swing on an outside pitch. 
 
It could begin to matter more at the MLB level in the future, though, since they now are tracking swing types of players. So you can consider effective speed variation of inside versus outside pitches (or high v. low X inside v. outside) based on if, say, the guy has an inside-out swing or types of cut and such.
 

OttoC

Member
SoSH Member
Dec 2, 2003
7,353
...not in how fast a given pitch travels, but how fast it appears to a hitter...many milliseconds it can shave off the time a hitter has to react to it.

It hinges on response time.....a batter can hit an outside fastball as it crosses the plate, but to make solid contact with an inside fastball, he must reach it much sooner — up to 2 feet in front of the plate — which requires the hitter to move the bat a greater distance in less time.


Doesn't this depend on whether the batter is trying to pull the ball? A right-handed batting trying to hit to right field can wait longer on a pitch than if he is trying to pull it down the left-field line. However, two feet in front of the plate sounds like a bit much to me given that almost all batters stand quite deep in the batter's box. They'll be pulling things foul.

In reality, couldn't batters compensate for this timing by going with the pitch?

To me, what makes a good pitcher is control, including the ability to spot his pitches in any part of the strike zone; the ability to throw every one of his pitches from the exact same release point with the same arm speed, relying on his grip to get a change in velocity; and the ability to put enough spin on certain types of pitches so that apparent strikes actually dive out of the strike zone (or throw 120 mph).
 
I think the article was a bit vague to actually evaluate the thinking process behind it.
 

barbed wire Bob

crippled by fear
SoSH Member
OttoC said:
...not in how fast a given pitch travels, but how fast it appears to a hitter...many milliseconds it can shave off the time a hitter has to react to it.

It hinges on response time.....a batter can hit an outside fastball as it crosses the plate, but to make solid contact with an inside fastball, he must reach it much sooner — up to 2 feet in front of the plate — which requires the hitter to move the bat a greater distance in less time.


Doesn't this depend on whether the batter is trying to pull the ball? A right-handed batting trying to hit to right field can wait longer on a pitch than if he is trying to pull it down the left-field line. However, two feet in front of the plate sounds like a bit much to me given that almost all batters stand quite deep in the batter's box. They'll be pulling things foul.

In reality, couldn't batters compensate for this timing by going with the pitch?

To me, what makes a good pitcher is control, including the ability to spot his pitches in any part of the strike zone; the ability to throw every one of his pitches from the exact same release point with the same arm speed, relying on his grip to get a change in velocity; and the ability to put enough spin on certain types of pitches so that apparent strikes actually dive out of the strike zone (or throw 120 mph).
 
I think the article was a bit vague to actually evaluate the thinking process behind it.
 
FWIW, here is the actual patent Husband filed .  He's also pushing this as a method that would also help hitters.  from the patent:
 
 
For batters 12, knowledge of the EV values of past pitches, and particularly patterns of EV values from a particular pitcher, can assist the batter 12 in anticipating future pitches. As an example, if a pattern of pitches having particular EV values is recognized, the batter 12 can anticipate subsequent pitches having differing EV values. As a corollary to this, the batter 12can be made aware that varying EV values means varying both speed and location, and that some different pitch speeds/locations can be eliminated as they have similar EV values to past pitches, even if their speed or location are different. Accordingly, the invention encompasses the determination of patterns of EV values from a pitcher 10 (which can be any recognizable number pattern), and the identification of likely future pitches that deviate from this pattern.
To me the theory is interesting and could explain why pitchers like Jamie Moyer were reasonably successful  However,  as far as I can tell, Koji Uehara  pitches completely opposite of what this guy recommends.    
 

OttoC

Member
SoSH Member
Dec 2, 2003
7,353
I really do not see how that is patentable (or should be...however, I just skimmed it).