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07-10

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1

What You Need to Know: July 10, 2015
by
Daniel Rathman

05-12

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1

Fantasy Freestyle: Finesse the Pitching
by
Nick Shlain

04-23

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12

Prospectus Feature: The Left-Handed Pitcher's Guide To Jon Lester's Pickoffs
by
Colin Young

03-20

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7

Every Team's Moneyball: New York Mets: You Will Always Have Enough Pitching Injuries
by
Will Woods

11-05

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0

Fantasy Freestyle: Curb Your Pitching Enthusiasm
by
Nick Shlain

09-23

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0

What You Need to Know: September 23, 2014
by
Daniel Rathman

09-19

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1

Pebble Hunting: Cueto's Quirks
by
Sam Miller

09-19

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3

Raising Aces: Carlos in Charge
by
Doug Thorburn

07-11

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2

Raising Aces: Breakout Breakdown: Corey Kluber and Garrett Richards
by
Doug Thorburn

06-13

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1

Raising Aces: Under the Hood of the 2014 Draft, Part Three
by
Doug Thorburn

06-06

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Raising Aces: Under the Hood of the 2014 Draft, Part Two
by
Doug Thorburn

06-05

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1

Working the Count: Jose Abreu's Not-So-Slow Bat
by
Noah Woodward

05-30

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4

Raising Aces: Under the Hood of the 2014 Draft, Part One
by
Doug Thorburn

05-13

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0

BP Daily Podcast: Effectively Wild Episode 448: Why Can't We Have a Healthy Jose Fernandez?
by
Ben Lindbergh and Sam Miller

05-09

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4

Raising Aces: Making Setup Man Magic
by
Doug Thorburn

05-07

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12

The Knuckle Curveball
by
Dan Rozenson

05-02

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7

Raising Aces: Too Early to Worry?
by
Doug Thorburn

04-18

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2

BP Daily Podcast: Effectively Wild Episode 431: The Rising Strikeout Rate Symposium
by
Ben Lindbergh

04-18

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5

Raising Aces: Masahiro Tanaka, the Debut Ante
by
Doug Thorburn

04-11

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11

Raising Aces: Starting Pitcher Four-Pack
by
Doug Thorburn

04-09

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16

Pebble Hunting: Max Scherzer and the Sabermetric Approach to Pitching to the Count
by
Sam Miller

04-07

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9

Baseball Therapy: Beware of the Intentional Walk?
by
Russell A. Carleton

04-04

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1

Raising Aces: The Aces of Opening Day
by
Doug Thorburn

04-03

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2

Pitcher Profile: New Arms (and Pitches) of the Week
by
Harry Pavlidis

04-01

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14

Baseball Therapy: The Complete Value of a Complete Game
by
Russell A. Carleton

04-01

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7

Moonshot: Cracking the Location Code
by
Robert Arthur

03-28

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10

Raising Aces: Out on a Limb: 2014 Pitcher Predictions
by
Doug Thorburn

03-21

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3

Raising Aces: Bush League: Eddie Butler, Tyler Glasnow, and Alex Meyer
by
Doug Thorburn

03-14

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7

Raising Aces: Bush League: Jonathan Gray
by
Doug Thorburn

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

02-28

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1

Raising Aces: Bush League: Andrew Heaney
by
Doug Thorburn

02-21

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3

Raising Aces: Organizational Trends: Looking for Mechanical Hallmarks
by
Doug Thorburn

02-12

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4

BP Unfiltered: T-Mac's Mechanics
by
Doug Thorburn

02-07

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5

Raising Aces: Bush League: Archie Bradley
by
Doug Thorburn

02-06

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14

Baseball ProGUESTus: Entropy and the Eephus
by
Robert Arthur

01-24

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19

Raising Aces: Classic Deliveries: Fade to Black and White
by
Doug Thorburn

01-17

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9

Raising Aces: Classic Deliveries: Hall of Fame Inductees 1980-89
by
Doug Thorburn

01-10

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9

Raising Aces: Classic Deliveries: Hall of Fame Inductees of 1990-94
by
Doug Thorburn

01-03

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9

Raising Aces: The Good Old Days: Nolan Ryan
by
Doug Thorburn

12-27

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19

Raising Aces: Examining Masahiro Tanaka's Mechanics
by
Doug Thorburn

12-20

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2

Raising Aces: Bush League: Julio Urias
by
Doug Thorburn

12-16

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28

Baseball Therapy: What Happened to the Four-Man Rotation?
by
Russell A. Carleton

12-13

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3

Raising Aces: Bush League: Jameson Taillon
by
Doug Thorburn

12-06

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11

Baseball ProGUESTus: Explaining Mistake Splits
by
Evan Petty

12-06

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2

Raising Aces: Diff'rent Strikes
by
Doug Thorburn

12-05

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19

Measuring Pitching with TrackMan
by
Zach Day

11-15

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17

Baseball ProGUESTus: Pitch Types and the Times Through the Order Penalty
by
Mitchel Lichtman

11-15

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18

Raising Aces: Bush League: Noah Syndergaard
by
Doug Thorburn

11-08

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11

Raising Aces: Great Pitchers, Flawed Mechanics
by
Doug Thorburn

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Mechanical looks at big-time pitching draft prospect Brady Aiken, Tyler Kolek, Carlos Rodon and Jeff Hoffman.

The 2014 first-year player draft is loaded with arms who are projected to fly off the board in the early going. The BP prospect crew recently conducted a mock draft of next Thursday's action, with each evaluator answering the question, “Whom would you draft?” The first edition covered the top 10 picks of the draft, and when all was said and done, the participants had chosen pitchers with eight of the first 10 selections, including the top four players overall. The only time in the history of the draft that the first four names announced were pitchers was in 2011, with the quartet of Gerrit Cole, Danny Hultzen, Trevor Bauer, and Dylan Bundy, and the early indications are that the arm-saturated draft of 2014 could match that tally.

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Ben and Sam discuss the Jose Fernandez injury and talk to Corey Dawkins and Doug Thorburn about the Tommy John rehab process and why pitchers keep getting hurt.

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May 9, 2014 10:15 am

Raising Aces: Making Setup Man Magic

4

Doug Thorburn

Breaking down the mechanics of high-octane setup men Chris Withrow and Dellin Betances.

One of the more visible signs of change in today's game is the reshaping of the bullpen, which has led to an increased emphasis on stockpiling ace relievers. Baseball has become saturated with strikeouts, and the solution becomes more concentrated as a game gets to the late innings and the leading team trots out a conga line of pitchers who specialize in whiffs. Today's ’pen is mightier than it’s ever been before.

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The skinny on the pitch that's taking baseball by storm.

Would you be surprised if I told you that over a quarter of the curveballs delivered by major league pitchers in 2013 were thrown with a knuckle curve grip? I certainly was. This was one of the results of the first comprehensive study of knuckle curveballs in the major leagues, which I have conducted after months of data collection. It is limited to PITCHf/x data, but the large population sizes give us a good first look at what knuckle curveballs behave like relative to standard curves.

What is a knuckle curveball?
First, let me define clearly what this study entails. A curveball is a pitch that, when thrown from a conventional arm angle, will drop from its normal trajectory due to topspin. It is also typically thrown slower than other pitches, so it drops significantly from the effect of gravity, as well. The two most important fingers in the curveball grip are usually the middle finger and the thumb. The middle finger and thumb rest on or beside seams on opposite sides of the ball, as in this image. At release, the thumb and middle finger spin the ball forward, giving it the desired topspin. The index finger is not needed at all to throw the pitch, and a handful of pitchers even leave it off the ball entirely.


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May 2, 2014 6:15 am

Raising Aces: Too Early to Worry?

7

Doug Thorburn

Examining Homer Bailey, Danny Salazar, and Justin Masterson.

Last week we studied a trio of pitchers who have enjoyed breakouts in performance over the first month of the season in order to distinguish legitimate improvement from potential mirage. This week, we examine the other side of the coin. There are a handful of pitchers who entered the season with high expectations yet have been knocked around the yard this April, and the most perplexing of these players are those whose peripheral stats are in line with last season but whose batted-ball profiles have taken a dive. It might be tempting to dismiss any vulnerability due to the vagaries of balls in play over small samples, but in some cases there are functional underpinnings to suggest that something has gone awry.

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Ben discusses the origins and implications of baseball's skyrocketing strikeout rate with a panel of experts including Harry Pavlidis, Rob Neyer, Brian Bannister, and Alan Nathan.

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April 18, 2014 6:36 am

Raising Aces: Masahiro Tanaka, the Debut Ante

5

Doug Thorburn

The Yankees' new starter appears to have the most important attribute of them all: the ability to make adjustment.

When I wrote about Masahiro Tanaka over the winter, my analysis was limited to the piecemeal footage that could be found across the interwebs, which led to a lot of caveats about what we could expect of his performance in the majors. There were many reasons for caution when projecting the state-side translation of his skill set, ranging from his workloads and pitch selection to his mechanics and statistical profile. With a trio of big-league starts now under his belt, we have a much clearer picture of his talent.

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April 11, 2014 7:50 am

Raising Aces: Starting Pitcher Four-Pack

11

Doug Thorburn

Doug looks for signs of mechanical progress by Yordano Ventura, Trevor Bauer, Chris Archer, and Erasmo Ramirez.

This is my third year writing Raising Aces for Baseball Prospectus, and one of the perks is the dynamic nature of the series (aided by the leniency of our editors). I’m always searching for better ways to communicate ideas about pitching or to broaden the discussion, and transparency has been an integral part of the process.

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Does Max Scherzer have a secret skill, and if so, can it be taught to other pitchers?

Tuesday night, Tigers against the Dodgers, third inning, this sequence:

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April 7, 2014 6:00 am

Baseball Therapy: Beware of the Intentional Walk?

9

Russell A. Carleton

Looking for evidence of an intentional walk hangover effect.

I missed baseball. It’s like being in a relationship with someone and then having to spend an extended period of time apart from them. Oh sure, you call and Skype and send each other e-mails, but when you are finally back in the same room, you get the joy of re-discovering each other. (And yeah, that’s a Journey reference.) Then there’s the next day after you’ve… ahem… gotten re-acquainted, when you realize that in addition to all of the wonderful things you missed about each other, all of the things that drive you crazy are still, there too.

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April 4, 2014 6:45 am

Raising Aces: The Aces of Opening Day

1

Doug Thorburn

A close look at four aces in action in week one.

All of the great holidays are marked by high levels of anticipation. But Opening Day stands out among the more traditional observances because it is merely the beginning of the celebration to follow: seven months of 6-4-3 double plays, exploding sliders, and that sweet sound when lumber meets horsehide. It’s easy to fall pretty to the trap of overweighting observations made at the start of the regular season, and the rational observer will maintain perspective while enjoying the day's festivities. But that doesn't mean that there’s nothing to be learned from the first round of games. Early in the season, many pitchers are making real adjustments to elements of their mechanics, approach, and repertoire, and these alterations can be put under the microscope in order to get an idea of the player's developmental patterns.

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New pitches and pitchers we've gotten glimpses of already this season.

Spring: a season of renewal and rebirth. Also a time of new pitches and pitchers. A lack of bona fide new arms in the early going has slowed the usual flurry of new PITCHf/x data to ogle, but some established pitchers have made some notable changes.

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