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Articles Tagged Velocity 

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04-14

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8

Moonshot: Does April Velocity Last?
by
Robert Arthur

03-28

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0

Changing Speeds: The Velocity Gainers and Losers of Spring 2014
by
Harry Pavlidis

03-07

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9

Raising Aces: Over the Radar 2.0
by
Doug Thorburn

03-03

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17

Raising Aces: Under the Gun 2.0
by
Doug Thorburn

10-30

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16

Baseball ProGUESTus: Is Speed Enough?: A PITCHf/x Look at the Effect of Fastball Velocity and Movement
by
Jonathan Hale

04-23

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2

BP Daily Podcast: Effectively Wild Episode 187: More About Velocity Loss/Baseball Players and Appendectomies
by
Ben Lindbergh and Sam Miller

04-09

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BP Daily Podcast: Effectively Wild Episode 177: How Much Does Velocity Loss Matter?/The Astros' Runaway Strikeout Rate
by
Ben Lindbergh and Sam Miller

04-01

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1

BP Unfiltered: The Velocity Gainers and Losers of Spring 2013
by
Harry Pavlidis

03-15

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6

The BP Wayback Machine: Do Spring Speeds Matter?
by
Mike Fast

03-15

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0

BP Daily Podcast: Effectively Wild Episode 160: The Outlooks for Tim Lincecum and Roy Halladay
by
Ben Lindbergh and Sam Miller

03-08

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22

Raising Aces: Under the Gun
by
Doug Thorburn

03-01

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25

Raising Aces: Over the Radar
by
Doug Thorburn

08-30

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1

BP Unfiltered: Is Stephen Strasburg Wearing Down?
by
Dan Brooks

08-03

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4

Raising Aces: Throwdown: Zack Greinke vs. Jeremy Hellickson
by
Doug Thorburn

07-14

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5

BP Unfiltered: Francisco Liriano's Unconvincing Impression of a Minnesota Twin
by
Ben Lindbergh

07-03

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2

BP Unfiltered: Just Sayin': Oliver Perez Might Be Back
by
Ben Lindbergh

06-15

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2

The Stats Go Marching In: Reaching Back for a Little Extra, Part Two
by
Max Marchi

06-12

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19

Baseball ProGUESTus: Scouting with PITCHf/x
by
Adam Foster

05-11

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1

The Stats Go Marching In: All About Velocity
by
Max Marchi

04-21

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3

Overthinking It: Washington's Gas Policy
by
Ben Lindbergh

05-03

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35

Prospects Will Break Your Heart: U Got the Look: Pitchers, Part I
by
Jason Parks

10-29

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9

Checking the Numbers: Quick Change Artistry
by
Eric Seidman

10-22

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9

Checking the Numbers: Crossing Over
by
Eric Seidman

10-05

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9

Checking the Numbers: Location and Perception
by
Eric Seidman

09-22

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35

Checking the Numbers: Perceived Velocity
by
Eric Seidman

04-23

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31

Checking the Numbers: Inside Pitch-f/x
by
Eric Seidman

04-02

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26

Checking the Numbers: Rest Up
by
Eric Seidman

03-03

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17

Is Consistency Key?
by
Eric Seidman

06-22

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0

Ballad of the Fatigued
by
Eric Seidman

06-09

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0

Ballad of the Fatigued
by
Eric Seidman

05-31

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0

Schrodinger's Bat: Physics on Display
by
Dan Fox

05-24

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0

Schrodinger's Bat: Batter Versus Pitcher, Gameday Style
by
Dan Fox

03-16

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0

Future Shock: Taking a Step Back, Part Three
by
Kevin Goldstein

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April 14, 2014 6:00 am

Moonshot: Does April Velocity Last?

8

Robert Arthur

A look at how much April velo matters and the starting pitchers who are throwing faster or slower so far.

This early in the season, when the samples sizes are small and the conclusions fragile, attention tends to focus most especially on pitch velocity. That’s a reasonable thing to do, since velocity stabilizes quickly. Because velocity is the simple result of the acceleration a pitcher can impart to his pitch, it is not as affected by luck as, say, batting average or ERA (or even the advanced metrics like tAV or FIP). Moreover, velocity is of prime importance in predicting a pitcher’s future success.

Velocity is deceptively simple. It is only a single number, and yet it can explain multitudes about a pitcher: the kind of pitches he throws, how he gets hitters out, and in aggregate, the kind of pitcher he is. I set out to explore the early-season changes in velocity, and to what extent they are predictive of the season’s velocity.

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Harry identifies the starters who gained or lost the most speed between the end of 2013 and the beginning of 2014.

Three years ago, Mike Fast (now with the Houston Astros) took a look at pitchers who gained or lost velocity between the end of 2010 and spring 2011. We won't summarize his whole study here, but here’s the money quote:

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March 7, 2014 6:00 am

Raising Aces: Over the Radar 2.0

9

Doug Thorburn

A mechanical look at the pitchers who've gained the most fastball velocity over the last couple seasons.

This week, we’re focusing on pitch velocity and identifying the arms who have seen a big change in their fastball speeds over the last couple of years. On Monday, we looked at the players who are on the velocity downslope, with offerings that fall under the radar-gun readings of their past. Today we study the other side of the coin, drawing attention to those pitchers who have added fuel to their heat over the past couple of seasons.

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March 3, 2014 12:00 pm

Raising Aces: Under the Gun 2.0

17

Doug Thorburn

A mechanical look at the pitchers who lost the most fastball velocity last season.

When it comes to pitching, velocity is the straw that stirs the drink. Fastball speed provides the baseline for batter timing and sets up every other arrow in a pitcher's quiver, explaining why velocity is the most sought-after commodity in pitchers at every level of play. Consequently, it can be devastating when a big-league pitcher transitions from pumping premium octane to regular gas, as it slows the performance of the whole machine.

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Is there a sweet spot for velocity?

Most of our writers didn't enter the world sporting an @baseballprospectus.com address; with a few exceptions, they started out somewhere else. In an effort to up your reading pleasure while tipping our caps to some of the most illuminating work being done elsewhere on the internet, we'll be yielding the stage once a week to the best and brightest baseball writers, researchers, and thinkers from outside of the BP umbrella. If you'd like to nominate a guest contributor (including yourself), please drop us a line.

Jonathan Hale has been using PITCHf/x to answer baseball questions all over the 'net since 2008. He once missed a Duane Ward curveball by three feet. You can read his writing about the Blue Jays or tell him what he should be analyzing next at The Mockingbird.

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Ben and Sam discuss the velocity losses of some of baseball's best starters, then talk about whether players should have prophylactic appendectomies.



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Ben and Sam talk about the performance impact of velocity loss, then discuss the Astros' astronomical early-season strikeout rate.



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Harry identifies the starters who gained or lost the most speed between the end of 2012 and the beginning of 2013.

Two years ago Mike Fast (now with the Houston Astros) took a look at pitchers who gained or lost velocity between the end of 2010 and spring 2011. We won't summarize his whole study here, but here’s the money quote:

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Can velocity changes in March and April reveal whether the radar gun will be a pitcher's friend or foe throughout the season?

While looking toward the future with our comprehensive slate of current content, we'd also like to recognize our rich past by drawing upon our extensive (and mostly free) online archive of work dating back to 1997. In an effort to highlight the best of what's gone before, we'll be bringing you a weekly blast from BP's past, introducing or re-introducing you to some of the most informative and entertaining authors who have passed through our virtual halls. If you have fond recollections of a BP piece that you'd like to nominate for re-exposure to a wider audience, send us your suggestion.

Are velocity readings trustworthy this early in the year, or should we wait until Opening Day to start putting any stock in the speed of a pitcher's stuff? Mike examined the issue in the piece reprinted below, which originally published as a "Spinning Yarn" column on March 30, 2011.
 


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Ben and Sam discuss their expectations for Tim Lincecum and Roy Halladay after their disappointing 2012 seasons and struggles this spring.



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Which pitchers have lost velocity over the past few seasons, and why?

In last week's episode of Raising Aces, we looked at those pitchers who have increased fastball velocity over the last three seasons. The article was inspired by the general tendency for pitchers to lose velocity as they age, and with this premise in mind, I decided to flip the switch and go digging for those pitchers who have lost some speed over the past three years.

For the purposes of this analysis, I chose to utilize the same threshold as with the pitchers who were over the radar: to qualify for the study, a starting pitcher had to have thrown at least 500 fastballs (or sinkers in select cases) in both the 2012 and 2011 seasons, and the average velocity of those pitches in 2012 had to be at least 0.50 mph lower than in each of the previous two seasons. The purpose of these boundaries is to capture a sustained loss in velocity across multiple seasons.

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March 1, 2013 5:00 am

Raising Aces: Over the Radar

25

Doug Thorburn

Which pitchers have managed to defy Father Time and add velo as they've aged?

It has been 28 days since my last entry into the chronicles of Raising Aces, and though I did manage some vacation time during the break, my baseball schedule has been otherwise locked and loaded throughout the month.

I had a blast with our mock arbitration series in early February, in which I went toe-to-toe with Ian Miller for a couple rounds of “name that comp.” I also dropped by the Effectively Wild studios to share my thoughts about the 2013 Athletics with Ben Lindbergh and Sam Miller, and behind the scenes I have been preparing more than 100 mechanical profiles for this year's Starting Pitcher Guide with Paul Sporer, which is currently in the final stages of production.

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