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Russell A. Carleton 

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07-30

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8

BP Unfiltered: The Ultimate Showdown of Ultimate Rarities
by
Russell A. Carleton

07-29

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15

Baseball Therapy: Trading Ryan Howard For Nothing and Winning
by
Russell A. Carleton

07-15

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51

Baseball Therapy: Why Are We Playing Hunger Games with Minor Leaguers?
by
Russell A. Carleton

07-08

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7

Baseball Therapy: What is a Fast Runner Worth?
by
Russell A. Carleton

07-04

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0

BP Daily Podcast: Effectively Wild Episode 485: Trading Within the Division
by
Ben Lindbergh and Russell A. Carleton

07-03

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0

BP Daily Podcast: Effectively Wild Episode 484: Kiley McDaniel Explains the International Signing Period
by
Ben Lindbergh and Russell A. Carleton

07-01

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4

Baseball Therapy: Do Some Pitches Do More Damage Than Others?
by
Russell A. Carleton

06-24

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17

Baseball Therapy: Is it Really Harder to Scout in New England?
by
Russell A. Carleton

06-19

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12

Baseball Therapy: Should You Trust the Projections?
by
Russell A. Carleton

06-17

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7

Baseball Therapy: What High School Has to Do with Tommy John
by
Russell A. Carleton

06-13

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3

Baseball Therapy: What You Can Do With Your Old Baseball Cards
by
Russell A. Carleton

06-10

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4

Baseball Therapy: Can Draft Lightning Be Bottled?
by
Russell A. Carleton

06-03

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19

Baseball Therapy: Introducing My Daughter to Baseball
by
Russell A. Carleton

05-30

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16

Baseball Therapy: The Hard Part About Preventing Tommy John Surgeries
by
Russell A. Carleton

05-27

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13

Baseball Therapy: The Annual Amateur Draft Guessing Game
by
Russell A. Carleton

05-20

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7

Baseball Therapy: Beware the Genius Tag for Coaches
by
Russell A. Carleton

05-13

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7

Baseball Therapy: Analytical Master or Leader of Men?
by
Russell A. Carleton

05-07

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0

BP Unfiltered: Baseball Prospectus at Fox Sports: The Statistical Impact of Instant Replay
by
Russell A. Carleton

05-06

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5

Baseball Therapy: Is Oakland's Run Differential for Real?
by
Russell A. Carleton

04-29

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11

Baseball Therapy: Do Innings Limits Work?
by
Russell A. Carleton

04-22

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8

Baseball Therapy: The Houdini Hangover Effect
by
Russell A. Carleton

04-17

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1

BP Daily Podcast: Effectively Wild Episode 430: Dirk Hayhurst on Cheating, Beaning, and Clubhouse Race Relations
by
Ben Lindbergh and Russell A. Carleton

04-15

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16

Baseball Therapy: Why Sabermetrics Needs Translational Research
by
Russell A. Carleton

04-07

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9

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

04-03

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8

BP Unfiltered: So What Was Daniel Murphy Doing in the Delivery Room?
by
Russell A. Carleton

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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17

Baseball Prospectus News: Introducing Mongolian Yak Racing Prospectus
by
Russell A. Carleton

03-27

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15

Baseball Therapy: Advances in Chemistry?
by
Russell A. Carleton

03-27

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7

Prospectus Preview: NL West 2014 Preseason Preview
by
Russell A. Carleton and Daniel Rathman

03-24

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5

Baseball Therapy: The Complicated Recoveries of Aroldis Chapman and Salvador Perez
by
Russell A. Carleton

03-17

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22

Baseball Therapy: The Viability of Burying a Bad Bat
by
Russell A. Carleton

03-10

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13

Baseball Therapy: The Baseball Questions We're About to Be Asking
by
Russell A. Carleton

03-04

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9

Baseball Therapy: Why The Cardinal Way is the Most Important Book in Baseball
by
Russell A. Carleton

02-24

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22

Baseball Therapy: But…He Finished Strong Last Season!
by
Russell A. Carleton

02-17

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10

Baseball Therapy: Looking for Meaning Amid the Small-Sample Flukes
by
Russell A. Carleton

02-11

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15

Baseball Therapy: When Sabermetrics Gets Personal
by
Russell A. Carleton

02-03

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11

Baseball Therapy: How Would We Know That a Team Has Good Chemistry?
by
Russell A. Carleton

01-29

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28

Throw the Flag
by
Dan Brooks and Russell A. Carleton

01-27

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38

Baseball Therapy: Why Are Smart Teams Spending Money on Relievers?
by
Russell A. Carleton

01-13

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15

Baseball Therapy: Building a Better Starting Rotation
by
Russell A. Carleton

01-09

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23

Baseball Therapy: The Hall of Fame Ballots By the Numbers
by
Russell A. Carleton

01-06

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11

Baseball Therapy: The Five-Man Rotation: The Appendix of Baseball
by
Russell A. Carleton

12-26

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7

Baseball Therapy: Rest an Extra Day to Keep the Doctor Away?
by
Russell A. Carleton

12-16

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28

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

12-12

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8

BP Unfiltered: Stand Up to Cancer...and Fernando Valenzuela
by
Russell A. Carleton

12-09

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12

Baseball Therapy: What Happened to the Complete Game?
by
Russell A. Carleton

12-06

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5

Transaction Analysis: Feldman Aims for the Stars
by
Russell A. Carleton and Craig Goldstein

12-04

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2

Transaction Analysis: Mile-High Morneau
by
Russell A. Carleton

12-02

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5

Baseball Therapy: Dating the Impulse to Protect Pitchers
by
Russell A. Carleton

11-25

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38

Baseball Therapy: The Corner-Outfield Inefficiency
by
Russell A. Carleton

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Why good team chemistry isn't necessarily what we think it is.

It’s one of the great unanswered questions in sabermetrics: Does team chemistry affect what you see on the field? I have a better question. What the heck is chemistry? I tend to be wary of words that have no explicit meaning, because they can mean anything, and undefined variables make for bad research. Ben Lindbergh recently found quotes uttered before the 2013 season from representatives of 25 of the 30 teams in MLB, who believed that their team had fantastic chemistry. Twenty-four of those teams did not win the World Series. In fact, some of them had really awful losing records. Ben found “great chemistry” quotes from the Astros, Marlins, Cubs, Twins, Mariners and White Sox, all of whom lost 90 games in 2013. If great chemistry is so important to a team, how is that possible?

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January 29, 2014 6:04 am

Throw the Flag

28

Dan Brooks and Russell A. Carleton

Could the manager challenge system sink expanded instant replay?

About that instant replay system that MLB put in place—we found a little problem with it. It started with us asking a pretty easy question. What is the best strategy for a manager to use in deciding when to throw “the flag” to challenge a call? We were sitting around talking about it, and the answer that we came up with is actually kinda scary: Managers should just throw that flag for any close play, the first time that they see one. When we say any close play, we mean just about anything that they have a smidgen of belief could be overturned by consulting a replay. And they shouldn’t fear throwing it even in the first inning, or throwing it to contest something that would give them only a trivial advantage.

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Et tu, Tampa Bay?

Last week, the Tampa Bay Rays signed Grant Balfour to be their closer for 2014 (and presumably 2015), committing to pay him $12 million over the next two seasons. It’s not an expensive closer contract, as these things go. But for the cost-conscious Rays, it seemed a little strange. The team also re-signed Juan Carlos Oviedo (formerly Leo Nunez) and traded for Heath Bell over the winter. Another sabermetric darling team, the Oakland A’s, signed Eric O’Flaherty last week and, earlier in the winter, traded for Josh Lindblom and Jim Johnson.

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January 13, 2014 6:00 am

Baseball Therapy: Building a Better Starting Rotation

15

Russell A. Carleton

Is the five-man rotation the best teams can do?

In 2013, the average starting pitcher lasted a bit under six innings (5.89, to be exact), and starters as a whole had an ERA of 4.01 (and an earned-or-not run average of 4.17). Collectively, the guys who began the game posted an xFIP of 3.91. They did so by using what has become a standard rotation setup. Five starters take their turns in sequence and throw roughly 100 pitches in an attempt to make it through six or seven innings (the 5-6-7 model.)

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Statistical takeaways from Wednesday's vote.

There’s now officially nothing left to talk about in baseball for another six weeks. But at least we get some good news. Three new plaques will be going up in Cooperstown this summer, a welcome change from the unfortunate shutout that happened during last year’s Hall of Fame voting. Greg Maddux, Tom Glavine, and Frank Thomas will all take their places in rural New York. After weeks of the usual arguments over PEDs, the merits of Jack Morris, and the 10-person ballot limit, it’s nice to take a step back and reflect on how good the Class of 2014 really was. Also, we should take a moment to realize that the ballot is starting to read like a BuzzFeed list of “Players that only baseball fans from the ’90s would understand.”

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Another look at whether the five-man rotation makes sense.

Over the last few weeks, I’ve been trying to answer a question. Fifty years ago, it was routine for teams to carry only four starters, and for those four starters to complete a good chunk of their games. Pitching on three days’ rest was common, and pitchers regularly posted pitch counts that would get a manager fired today if he let it happen once. What happened?

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Does the five-man rotation decrease the risk of pitcher injury?

Last time we met, we contemplated the curious case of the fifth starter. He is, somewhat by definition, worse than the other four guys who might otherwise be starting tonight’s game. Yet there he is, standing out there for the next 3 1/3 innings until he inevitably gets chased after giving up his sixth run. Why not just skip this exercise in futility and let the other (better) guys pitch the game? Last week, we saw that pitchers didn’t suffer much from going on three days’ rest. It was a high pitch count in his last outing that was a problem. If pitchers have, historically, performed just as well on three days’ rest as four, why is baseball so afraid to go back to the four-man rotation?

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December 16, 2013 6:00 am

Baseball Therapy: What Happened to the Four-Man Rotation?

28

Russell A. Carleton

Is using a fifth starter a mistake?

Lately, I’ve been wondering about the development of the modern pitching staff. I’ve looked at how we got to the point where no one completes a game anymore and why pitch counts have fallen over the years. Here’s another. What happened to the four-man starting rotation? It used to be that a team had four starters, each of whom pitched on three days’ rest…or so the story goes. There were always days off and travel days, and then there were doubleheaders, so there were swingmen who picked up the occasional start. While we can’t yet be sure what happened, we at least have an idea of when it happened. Here’s a chart showing the percentage of starts featuring a pitcher who was on three days of rest (or fewer) from 1950 to 2012.

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Finally, a chance to support anti-cancer efforts AND have your portrait painted by Didi Gregorius.

Do you have a hard-to-shop-for baseball fan on your list? Have they ever wanted to have a portrait painted by Didi Gregorius? Or to go golfing with Fernando Valenzuela? Or to join the A's Front Office? Keep reading!

Read the full article...

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December 9, 2013 6:00 am

Baseball Therapy: What Happened to the Complete Game?

12

Russell A. Carleton

Should starting pitchers be asked to finish what they started more often?

In 2013, Adam Wainwright led Major League Baseball by pitching five complete games. In 2012, Justin Verlander was much more of an ironman and pitched six. A mere 30 years ago, in 1983, six complete games would have landed Verlander in a tie for 42nd place with such notables as Storm Davis, Bob Forsch, Jim Gott, Ken Schrom, and Bruce Hurst. Even 20 years ago, six complete games would have been good for a tie with David Cone for 15th place in MLB. What happened to finishing what you started?

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December 6, 2013 3:32 pm

Transaction Analysis: Feldman Aims for the Stars

5

Russell A. Carleton and Craig Goldstein

The Astros are stirring.



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December 4, 2013 6:00 am

Transaction Analysis: Mile-High Morneau

2

Russell A. Carleton

The Rockies replace Todd Helton with a former MVP.

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