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Happy Thanksgiving! Regularly Scheduled Articles Will Resume Monday, December 1

Articles Tagged Player Age 

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02-15

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18

Fantasy Freestyle: Mike Trout and Regression Obsession
by
Mike Gianella

07-03

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8

BP Unfiltered: Check Your Facts, or Twitter Will Check Them for You
by
Ben Lindbergh

02-22

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28

Prospectus Preview: NL East 2012 Preseason Preview
by
Derek Carty and Michael Jong

01-19

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0

The BP Wayback Machine: Roger Abrams
by
David Laurila

01-16

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22

Prospectus Hit and Run: The Keltner All-Stars, Part II
by
Jay Jaffe

01-02

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21

Prospectus Hit and Run: The Class of 2012: The Outfielders, Part I
by
Jay Jaffe

10-31

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10

Prospectus Hit and Run: A Weighty Matter
by
Jay Jaffe

10-14

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39

Doctoring The Numbers: Starting Them Young, Part Two
by
Rany Jazayerli

10-13

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57

Doctoring The Numbers: Starting Them Young, Part One
by
Rany Jazayerli

08-22

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3

Resident Fantasy Genius: Is Prospect Potential Realized?
by
Derek Carty

07-13

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48

The Lineup Card: Cult Favorites: 18 Non-Star Ballplayers Who Should be Better Remembered
by
Baseball Prospectus

05-19

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14

Overthinking It: The Over/Under-30 All-Stars
by
Ben Lindbergh

04-15

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21

Baseball ProGUESTus: The Scott Boras Factor: Reality or Hype?
by
Vince Gennaro

01-04

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7

Prospectus Hit and Run: Class of 2011: The Right Fielders
by
Jay Jaffe

10-14

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20

Spinning Yarn: The Glavine Line
by
Mike Fast

07-22

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6

Changing Speeds: Cold Fusion
by
Ken Funck

06-28

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12

Top 10 Week: General Manager Candidates
by
Will Carroll

05-17

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32

Ahead in the Count: The Cost of OPP
by
Matt Swartz

04-27

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83

Ahead in the Count: Ryan Howard and the New MORP
by
Matt Swartz

03-11

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18

Contractual Matters: AL East
by
Jeff Euston

02-15

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31

Baseball Therapy: That Peak Age Thing, Part 1
by
Russell A. Carleton

01-13

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77

Prospectus Hit and Run: 10 Men Out
by
Jay Jaffe

01-11

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125

How Do Baseball Players Age?
by
J.C. Bradbury

05-31

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43

Prospectus Idol Entry: Fantasy Focus: Trade Market
by
Jeff Euston

03-26

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22

Lies, Damned Lies: Stress Tests
by
Nate Silver

08-22

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0

Lies, Damned Lies: The Ultimate Fantasy Draft (Part 2)
by
Nate Silver

08-21

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0

Lies, Damned Lies: The Ultimate Fantasy Draft
by
Nate Silver

05-15

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0

Prospectus Today: McCann versus Martin
by
Joe Sheehan

04-22

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0

Stupid Lawyer Tricks
by
Derek Jacques

04-18

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0

Lies, Damned Lies: Adding Birthdays
by
Nate Silver

04-13

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0

Prospectus Q&A: Roger Abrams
by
David Laurila

04-05

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0

Doctoring The Numbers: Dodgers and Nationals
by
Rany Jazayerli

11-08

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0

Schrodinger's Bat: The Biggest Booms and Busts?
by
Dan Fox

09-20

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2

Lies, Damned Lies: The Best Player in Baseball, Part One
by
Nate Silver

08-29

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0

Future Shock: Positional Rankings--Center Field
by
Kevin Goldstein

08-22

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Future Shock: Positional Rankings - Corner Outfield
by
Kevin Goldstein

06-06

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0

The Big Picture: Graying Offenses
by
David Pinto

06-01

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0

Prospectus Today: The Once and Future Superstar Shortstops
by
Joe Sheehan

04-19

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0

The Foreigners
by
Mike Plugh

04-10

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0

Impact Talent in Japan
by
Mike Plugh

04-05

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0

Schrodinger's Bat: In the Arms of an Angel
by
Dan Fox

03-11

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0

Prospectus Q&A: Pete Palmer
by
David Laurila

02-15

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0

Schrodinger's Bat: Age Before Beauty
by
Dan Fox

02-01

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0

Lies, Damned Lies: PECOTA Takes on Prospects, Introduction
by
Nate Silver

10-16

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0

Future Shock: Monday Morning Ten-Pack
by
Kevin Goldstein

10-16

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0

Prospectus Today: LCS, Day Six
by
Joe Sheehan

10-14

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0

Future Shock: Where Did the Tigers and the Athletics Come From?
by
Kevin Goldstein

10-14

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0

Prospectus Today: LCS, Day Four
by
Joe Sheehan

10-14

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0

Playoff Prospectus: The Best and Worst of Mets and Cardinals Postseason Pitching
by
Jim Baker

10-13

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0

Prospectus Today: LCS, Day Three
by
Joe Sheehan

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Has super-agent Scott Boras earned his reputation for getting the most cash and the longest contracts for his clients?

Believe it or not, 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.

Vince Gennaro is the author of Diamond Dollars: The Economics of Winning in Baseball and a consultant to MLB teams. He teaches in the Graduate Sports Management programs at Columbia University and Manhattanville College. He is also on the Advisory Board of The Perfect Game Foundation and the Board of Directors of the Society for American Baseball Research (SABR), whose upcoming annual convention will feature Scott Boras as the keynote speaker. A non-profit organization with 6,700 members, SABR is a perfect fit for anyone who has an interest in baseball research, statistics and history. Vince's website is www.vincegennaro.com

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January 4, 2011 9:00 am

Prospectus Hit and Run: Class of 2011: The Right Fielders

7

Jay Jaffe

Taking a look at players on the Hall of Fame ballot who played right of center, including one who performed for years at altitude.

Like Edgar Martinez, Larry Walker could flat-out rake. In his 17-year career with the Expos, Rockies, and Cardinals, Walker won three batting titles with averages of at least .363—three of the top 20 batting averages of the last 30 years, including the second-highest (.379) in 1999. Unlike Martinez, Walker could also play defense; he won seven Gold Gloves in an 11-year span, and had four straight seasons where he was at least 10 runs above average in right field. As he debuts on the Hall of Fame ballot, the cream of the crop among its five right fielders, the primary question about Walker is how much of his perceived value comes out in the wash after adjusting for him having spent the middle of his career in pre-humidor Coors Field. Will JAWS chew through the meat of his career?

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Attempting to plot the career path of those who may reach the 300-win plateau.

I’m excited to join Baseball Prospectus. If you’ve read any of my previous work, you may know me as something of a PITCHf/x guy. I’ve been learning about and writing about PITCHf/x since the pitch-tracking system was installed in major-league ballparks in 2007, so that description is apt. My interests extend beyond PITCHf/x to the physics of baseball and the details of the pitcher-hitter confrontation.

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A look at the surprise home run hitters of 2010, relative to their pre-season PECOTA forecasts.

On Tuesday night in Kansas City, Blue Jays right fielder Jose Bautista launched his major league-leading 26th home run, continuing one of the most unexpected power surges in recent memory. Long known as a journeyman with decent patience and a modicum of power, few expected Bautista at this stage of his career to suddenly turn into a long-ball machine. It’s always fun to see players suddenly show a propensity for the long ball—perhaps we identify with players who manage the baseball equivalent of the young Marty McFly balling up his fist and decking Biff with an unexpected haymaker. 

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A look at 10 men who should be considered to run a baseball operations department.

Welcome to Top 10 Week. All week long, various BP authors will be revealing their Top 10s in various categories. Today we start off with Will Carroll ranking the 10 best general manager candidates.

A couple years back, I did a list of the "next GM" crop. It's one of those innocuous exercises that nonetheless tells us a lot about what's going on inside of the front offices. We hear about GMs, about trades, about drafts, but even in Moneyball and earlier in Dollar Sign on the Muscle, we seldom hear about the day-to-day operations carried out by a group of people that is overworked, underpaid, and most importantly, vastly overqualified. This is a group that years ago would be more likely to be putting together a hedge fund, working for the State Department, or something a bit more "important" than the game of baseball. With the money of the modern era, teams got smarter, fast. 

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May 17, 2010 9:00 am

Ahead in the Count: The Cost of OPP

32

Matt Swartz

Clubs who are down with re-signing their own free agents get better value than those who sign other people's players.

After remembering the 1981 hit "Should I Stay or Should I Go" by The Clash with last week’s title on the same topic, we move forward a decade to a 1991 Naughty by Nature hit—and we introduce the money to the equation this time (if you’re down with that).  In this article, I will show that players who re-sign with their clubs on multi-year deals provide far more bang for their buck than players who sign contracts with new teams.

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April 27, 2010 9:30 am

Ahead in the Count: Ryan Howard and the New MORP

83

Matt Swartz

Putting new valuation into action to evaluate the big bopper's big extension.

Just days after my two-part series introduced the new MORP to evaluate baseball contracts, the Phillies provided me with an excellent opportunity to put it into action by signing Ryan Howard to a five-year contract extension yesterday.

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March 11, 2010 11:00 am

Contractual Matters: AL East

18

Jeff Euston

A look at the division that houses the game's biggest spenders.

Only the strong survive in the American League East. The division includes baseball’s two biggest revenue-generating machines and three other clubs whose revenues and payrolls reside tens of millions of dollars down the road. Continuing our 2010 payroll forecast (we’ve covered the NL Central, the AL Central, and the NL East), let’s examine the spending habits of the Yankees, Red Sox, Rays, Blue Jays, and Orioles.

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Dispelling the idea that all hitters reach their prime at the same age.

My grandfather used to say that in heaven, everyone was 25. He figured that was the perfect age in life. You're old enough that you're not a kid any more, but young enough to enjoy everything. Grandpa lived to age 93, and more than six years later, I still miss the guy. This one's for you, Grandpa.

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January 13, 2010 12:17 pm

Prospectus Hit and Run: 10 Men Out

77

Jay Jaffe

A review of the best candidates at every position among the eligibles for the BBWAA and the Veterans Committee ballots.

One of the great things about having an intelligent and inquisitive readership here at Baseball Prospectus is that interacting with our readers often yields strong ideas for articles. Case in point: during last week's chat in which I discussed JAWS and the Hall of Fame voting results, loyal reader and long-suffering Orioles fan TGisriel lobbed an article idea right into my wheelhouse:

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January 11, 2010 2:50 pm

How Do Baseball Players Age?

125

J.C. Bradbury

The old assumption that players peak around the age of 27 has long been the accepted standard, but should it be?

Recently, there's been a decent amount of chatter regarding how baseball players age, and I have to admit that it's mostly my fault. In a study that was recently published in Journal of Sports Sciences, I find that players tend to peak around the age of 29; this finding has been met with resistance from some individuals in the sabermetric community, where 27 has long been considered the age when players peak. Will Carroll and Christina Kahrl graciously asked if I would be willing to defend my findings on Baseball Prospectus. I agreed, and I thank Will and Christina for the opportunity to do so.

Due to the length of the explanation, I have broken the analysis into two parts. Part I explains the empirical problems faced when estimating aging, and examines why past sabermetric studies have failed to properly measure player aging; Part II explains my recent study.

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Baseball's rumor mill got an early kick-start last week when the San Diego Padres reached an agreement to trade ace right-hander Jake Peavy to the Chicago White Sox.

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