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05-04

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Aim For The Head: Aim For the Front Office
by
Keith Woolner

06-21

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Aim For The Head: Customized Stat Reports
by
Keith Woolner

04-10

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Aim For The Head: Lengthening Pitch Counts
by
Keith Woolner

03-24

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Aim For The Head: New Relief Categories
by
Keith Woolner

03-08

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Aim For The Head: Quick-n-Dirty Base-Out Expected Runs Matrix
by
Keith Woolner

03-02

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Aim For The Head: Mailbag: Outcomes and Outrages
by
Keith Woolner

02-02

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Aim For The Head: Five More Reasons to Hate the Hold
by
Keith Woolner

01-24

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Aim For The Head: Three True Outcomes, 2005
by
Keith Woolner

03-04

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Aim For The Head: Three True Outcomes, 2004
by
Keith Woolner

10-08

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Aim For The Head: Rookies, RBI and Revamped Reliever Reports
by
Keith Woolner

09-13

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Aim For The Head: Support-Neutral Pitching Reports, Revamped
by
Keith Woolner

05-26

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Aim For The Head: Hidden Perfect Games Mailbag
by
Keith Woolner

04-27

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Aim For The Head: Hidden Perfect Games
by
Keith Woolner

04-01

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Aim For The Head: Discovering True Clutch Hitters
by
Keith Woolner

02-11

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Aim For The Head: Memory Lane
by
Keith Woolner

01-21

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Aim For The Head: Three True Outcomes, 2003
by
Keith Woolner

09-17

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Aim For The Head: Reader Mail, and More New Stat Reports
by
Keith Woolner

08-15

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Aim For The Head: New Stat Reports
by
Keith Woolner

08-13

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Aim For The Head: Pete Rose and the Hall of Fame
by
Keith Woolner

08-04

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Aim For The Head: Supercycles
by
Keith Woolner

05-15

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Aim For The Head: Understanding MLVr
by
Keith Woolner

04-01

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Aim For The Head: A Big Change for OBP
by
Keith Woolner

03-25

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Aim For The Head: Opening Day Starters
by
Keith Woolner

11-21

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Aim For The Head: Are Balanced Lineups Better?
by
Keith Woolner and Rodger A. Payne

08-30

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Aim For The Head: Quality Starts
by
Keith Woolner

07-18

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Aim For The Head: Scoring Early and Often
by
Keith Woolner

07-12

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Aim For The Head: Long Plate Appearances Mailbag
by
Keith Woolner

06-26

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Aim For The Head: More on Lengthy Plate Appearances
by
Keith Woolner

06-26

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Aim For The Head: More on Lengthy Plate Appearances
by
Keith Woolner

06-11

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Aim For The Head: OPS by Length of Plate Appearance
by
Keith Woolner

06-11

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Aim For The Head: OPS by Length of Plate Appearance
by
Keith Woolner

06-06

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Aim For The Head: PAP^3 FAQ
by
Keith Woolner

06-05

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Aim For The Head: PAP^3 FAQ
by
Keith Woolner

05-29

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Aim For The Head: Simulating Catcher's ERA
by
Keith Woolner

05-07

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Aim For The Head: Batters' ball-in-play rates
by
Keith Woolner

05-07

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Aim For The Head: Batters' ball-in-play rates
by
Keith Woolner

05-03

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Aim For The Head: Dropping the Worst Starts
by
Keith Woolner

04-01

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Aim For The Head: Innings Pitched to Wins
by
Keith Woolner

04-01

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Aim For The Head: Innings Pitched to Wins
by
Keith Woolner

02-12

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Aim For The Head: Set Lineups
by
Keith Woolner

01-15

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Aim For The Head: Kicking Off the New Year
by
Keith Woolner

10-24

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Aim For The Head: They Cringed
by
Keith Woolner

10-16

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Aim For The Head: The Mariners
by
Keith Woolner

09-29

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Aim For The Head: Making Statheads Cringe
by
Keith Woolner

09-19

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Aim For The Head: Hit-by-Pitch Rates
by
Keith Woolner

09-07

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Aim For The Head: Quality of Opposition
by
Keith Woolner

08-30

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Aim For The Head: The Men In Black
by
Keith Woolner

08-16

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Aim For The Head: More Reaching on Errors
by
Keith Woolner

08-02

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Aim For The Head: Reaching on Errors
by
Keith Woolner

07-27

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Aim For The Head: Feedback
by
Keith Woolner

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This week's question comes from Sam Grossman, who writes: What percentage of "quality starts" results in Ws, Ls and NDs for the starting pitcher? What about Ws and Ls for the team? Has this been consistent across time (effect of bullpens, etc.)?

This week's question comes from Sam Grossman, who writes:

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This week's question comes from Chuck Valenches, who writes: I am the broadcaster for the Pirates' Triple-A club, the Nashville Sounds. We do a promotion where fans are encouraged to write in and "Ask the Sounds".... One question we received we cannot find an answer for. Q. Has there ever been a game in which both teams scored at least one run in every inning, and when was the last time it happened?

This week's question comes from Chuck Valenches, who writes:

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More mailbag.

Judging from the feedback in my inbox, people are still having fun looking at the number of pitches in a plate appearance, so let's answer a few more questions from the mailbag.

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Many people brought up the point that strikeouts can only kick in at three pitches, and walks at four pitches.

The last Aim for the Head, about how offensive production varies with the number of pitches in the plate appearance, generated a lot of questions. Let's dig into the mailbag:

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Ted Frank wrote:

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June 11, 2002 10:01 am

Aim For The Head: OPS by Length of Plate Appearance

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Keith Woolner

Looking at which length of a plate appearance favors the hitter, the pitcher, or neither

This week's question comes from Don Coffin, who asks:

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PAP Q&A

PAP^3 is the name for the new system for measuring pitcher abuse via pitch counts introduced in Baseball Prospectus 2001. Though it shares a similar name and goal with a system previously introduced by Rany Jazayerli, it was developed independently, and replaces the older system.

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Since the chat session, I've received dozens of e-mails asking for additional details. The response from BP readers finally prodded me into finishing some related projects I'd had in progress for a while, which I'll present later in this article.

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May 7, 2002 5:19 pm

Aim For The Head: Batters' ball-in-play rates

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Keith Woolner

This week's question comes from Robert Shore, who asks: Like many people, I was mightily impressed by Voros McCracken's work, which strongly suggested that pitchers have essentially no effect on the conversion of balls in play to outs. It occurred to me to wonder about the converse question. Are some batters better than others in converting balls in play to base hits?

 This week's question comes from Robert Shore, who asks:

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Starting today, we will be periodically running some of the best content from the new, super-charged Baseball Prospectus archives. Those new to BP may be reading this content for the first time. Long-time readers can rekindle old debates. We begin today with Keith Woolner's look at the conversion of balls in play into outs, from 2002. To do your own mining, go to BP's Search function. To request a specific article from the archives, e-mail jkeri@baseballprospectus.com.

This week's question comes from Robert Shore, who asks:

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