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Harry Pavlidis 

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07-09

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1

Pitcher Profile: Jake Arrieta
by
Harry Pavlidis

05-15

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0

BP Announcements: Pizza and Prospects: Chicago, May 24
by
Harry Pavlidis

04-07

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0

BP Unfiltered: Pineda is Back
by
Harry Pavlidis

04-03

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2

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

03-31

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4

Framing the Future
by
Harry Pavlidis

03-25

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18

Prospectus Preview: NL Central 2014 Preseason Preview
by
Ken Funck and Harry Pavlidis

03-08

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9

BP Announcements: Prospects, Pizza, and More: March 8 at Monti's in Chicago
by
Harry Pavlidis

03-03

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47

Framing and Blocking Pitches: A Regressed, Probabilistic Model
by
Harry Pavlidis and Dan Brooks

12-19

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16

Baseball Prospectus News: A New Direction for Stats at BP
by
Harry Pavlidis

08-30

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5

What Makes a Good Changeup?
by
Harry Pavlidis

07-17

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1

Pitcher Profile: Speeding Up at the Break
by
Harry Pavlidis

05-30

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0

BP Unfiltered: Jeff Samardzija's Mysterious Splitter
by
Harry Pavlidis

05-24

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17

What Makes a Good Changeup?
by
Harry Pavlidis

05-10

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2

What Makes A Good Changeup
by
Harry Pavlidis

05-03

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5

New Arms: Flamethrowers, Hammers, and Knucklers
by
Harry Pavlidis

04-19

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3

Pitcher Profile: Rookie Rotation Arms
by
Harry Pavlidis

04-12

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0

Pitcher Profile: A Pair of Astros
by
Harry Pavlidis

04-03

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6

Dissecting Darvish's Opening Day
by
Jason Cole, Zachary Levine, Ben Lindbergh and Harry Pavlidis

04-01

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1

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

03-28

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8

Prospectus Preview: These Questions Three: The Maybe-Next-Years
by
Bradford Doolittle and Harry Pavlidis

03-22

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0

Pitcher Profile: A Prospect, a Non-Prospect, and a Blast From the Past
by
Harry Pavlidis

03-15

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5

Pitcher Profile: New Arms of the World
by
Harry Pavlidis

03-08

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2

Pitcher Profile: Four Growing Giants
by
Harry Pavlidis

03-02

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2

BP Unfiltered: Sloan Q&A: Harry Pavlidis On f/x Tracking Data
by
Zachary Levine and Harry Pavlidis

03-01

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3

Pitcher Profile: New Arms of the Week, First Edition
by
Harry Pavlidis

02-22

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10

Pitcher Profile: Aroldis Chapman
by
Harry Pavlidis

02-21

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14

BP Unfiltered: Home Run Rates and Elbow Injuries UPDATED
by
Corey Dawkins, Ben Lindbergh, Harry Pavlidis and Doug Thorburn

02-15

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10

Pitcher Profile: Milwaukee's Rotation Brew
by
Harry Pavlidis

02-06

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0

Pitcher Profile: Johnny Cueto
by
Harry Pavlidis

08-08

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9

PITCHf/x Mailbag: Swing Tendencies on 3-0 Counts
by
Dan Brooks and Harry Pavlidis

07-13

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5

BP Announcements: Normalized Hitter/Pitcher Profiles Have Arrived
by
Dan Brooks and Harry Pavlidis

07-12

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24

Baseball Prospectus News: Introducing the BP Pitcher Profiles
by
Dan Brooks and Harry Pavlidis

07-09

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22

Baseball Prospectus News: Introducing the BP Hitter Profiles
by
Dan Brooks and Harry Pavlidis

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The evolution of the Cubs' new best starter.

This is a story. A story about a pitcher. It will be told in pictures and sound, with some words interspersed.

Read the full article...

Another BP meet-up in Chicago is fast approaching.

Join us in Chicago on Saturday, May 24 at Pizzeria Serio on the North Side of Chicago for three hours of pizza and baseball talk. Our focus will be on the upcoming MLB First-Year Player (Rule 4) Draft.

Read the full article...

After two years on the shelf with a shoulder injury, Michael Pineda appears to have recovered his old stuff.

The Yankees got a major boost during the opening week when Michael Pineda took the mound for his first MLB game since 2011. When we last saw Pineda, he was wearing a Mariners uniform and facing a sudden dropoff in velocity, the first sign of the shoulder woes that have kept him out of the big leagues since his days in Seattle.

Read the full article...

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.

Read the full article...

March 31, 2014 6:00 am

Framing the Future

4

Harry Pavlidis

The best receiving catchers (and the best receiving teams) of the upcoming season.

One of the benefits of our recently released catching defense metrics is they’re essentially ready-to-project, thanks to the regression feature of the model (the "R" in RPM). RPM also gives us two ways to assign value to framing, one using context (the ball-strike count) and one using a flat value (recently adjusted* to ~.155 runs).

Read the full article...

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March 25, 2014 7:37 am

Prospectus Preview: NL Central 2014 Preseason Preview

18

Ken Funck and Harry Pavlidis

Part three in a division-by-division dialogue leading up to Opening Day.

The rest of this article is restricted to Baseball Prospectus Subscribers.

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An upcoming event for those in the Chicago area.

Join us in Chicago on Saturday, March 8 at Monti’s on the North Side of Chicago for two hours of pizza, cheesesteak, and baseball talk.

Read the full article...

The best blockers and receivers, revealed.

[T]he expected runs produced from each plate appearance starting with a strike decreases by .029 runs and increases by .040 for every ball thrown on a first pitch. In other words, having as many of those 0-0 'striballs' called strikes can greatly impact the outcome of the game.

Read the full article...

A new philosophy, and some new faces, for the stats team at Baseball Prospectus.

Two things about Baseball Prospectus that seem to remain true:

Read the full article...

Harry draws on a conversation with former big-leaguer Brian Bannister to extend his PITCHf/x research on changeups from earlier in the year.

A few months ago, I started a series on changeups focused on figuring out the qualities that make a good one. Click the following links to read part one and part two.

If there was a noteworthy finding in the early stages, it was that pitchers who succeed at coaxing ground balls with their changeups generally looked dissimilar from those who missed bats with theirs. The pitchers who can do both are the best. Stephen Strasburg topped that list, so the first waft of the sniff test was passed.

Read the full article...

Did the starters and relievers who worked in the Futures Game and the All-Star Game enjoy velocity bumps? Harry digs into the PITCHf/x data for the answer.

Pitching ruled the All-Star break. The Futures Game featured a gaggle of power arms and a grand total of six runs. And that was twice the output of the main event, where the National League's best failed to score a run. Mariano Rivera made an emotional appearance. And, in the Home Run Derby, Ron Harper showed off a cutter of his own.

I have a confession to make: I think the Futures Game is the best part of the All-Star break.

Read the full article...

Unraveling the secret of an unusual pitch.

Jeff Samardzija has become one of my favorite pitchers. But for a few years, he was a thorn in my side. Okay, maybe more like two thorns.

Read the full article...

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