December 7, 2013
And here's the full roster.
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About John WalshJohn Walsh is a research physicist who, despite living 4000 miles from Fenway Park, remains an avid fan of the Red Sox. He welcomes questions and comments via e-mail.
Note: This page displays up to 200 articles at a time. To view a subset of a writer's work, click on one of the following years:
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John Walsh's Articles
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John measures the strike zone and learns about the nature of umpires.
Twenty-five years ago Bill James predicted that baseball would wise up and figure out what kind of player should bat leadoff. Was he right?
Wherein we learn about Ruth's difficulties hitting the long ball in Boston and Ott's easy time at the Polo Grounds, with some bonus material on The Splinter and The Clipper.
Mantle and Robinson meet in the 1952 World Series. I think.
The second half of John's investigations of batsmen grounding into double plays, including the best and worst rally-killers of the last half century.
Should Mets fans be hopeful or worried about the upcoming season?
A look at something that OPS overlooks. Or, why Miguel Tejada is not Grady Sizemore.
John gives his annual report on outfield arms. We find some new names at the top of the list and some familiar ones at the bottom.
Wherein we continue our comparison of two Red Sox greats: Carl Yastrzemski and Manny Ramirez. Will Carl's defense overcome Manny's superior bat?
Wherein we examine the relative claims to second-best Red Sox left fielder ever, taking into account hitting, baserunning, catching the ball and throwing the same.
How much control does a pitcher really have? Perhaps not as much as we're led to believe.
John answers questions from all over.
Conventional wisdom has it that the changeup should never be thrown inside. John has a look to see if there is any wisdom in the conventional wisdom.
Keith Hernandez, in his 1993 book Pure Baseball, has some very good stuff on pitching.
The supposed art of place hitting.
Which is the better pitch: an 87-mph fastball on the outside corner or 96 down the middle? John has a look using (of course) PITCHf/x.
You can already feel your shoulders slump.
Can the Mets live up to expectations in 2008?
Who throws the best pitch in baseball?
Can the average Joe be a successful scout of major league talent? Yes!
John digs into play-by-play data to unearth the best (and worst) outfield arms of 2007. As usual, there are some surprises.
Analysis of the four workhorses of the pitcher's arsenal: fastball, slider, change-up and curveball.
John tries to pin down the elusive knuckler using Pitch f/x data.
Left-handed batters on average hit for higher averages than right handers. The reasons for that may surprise you.
An investigation of Pedro Martinez in 2007.
Everything you need to know about identifying pitches using pitch-f/x data.
Is it better to swing at a strike than a ball? Yes. How much better? A lot.
John investigates the accuracy of umpires' eyes. He employs a million-dollar pitch-tracking system instead of an eye-chart.
Did you know that right-handed batters have to defend a bigger strike zone than lefties?
Another use for detailed pitch data: investigating the ailing shoulder of Curt Schilling.
John shows how you can identify different pitch types using data from MLB's Enhanced Gameday. He then digs deeper into the sinker and wonders how anybody can throw the pitch.
Not all ground balls are created equal.
All these defensive systems making your head spin? John looks at infield defense in a simpler way.
John looks at the history of hitting to the opposite field. Are hitters using the opposite field more now than in the past?
Thoughts on the Mets winning another division title in 2007. Or not.
John Walsh tells us which batters would benefit most from a move to Fenway Park.
The best and worst outfield arms of 2006.
A look at who benefits from the Green Monster and who doesn't.
The American League is becoming the premier league in MLB. Not only for its hitters, but it turns out AL pitchers are superior as well.
A look back at the Soriano-Wilkerson trade.
John looks at some pretty good performances in 2006, some you might not have heard much about.
A look at Chien-Ming Wang and what the future might hold for him.
Ruminations on a World Series off day.
A look at the changes in baseball at altitude in 2006.
A look at the essence of Jeff Francoeur, wherein we try to ascertain what his future holds.
John has a look at the much-maligned Run-Batted-In.
A look at where the Mets have been in 2006 and where they are going
A sort of baseball Q & A, with some other stuff thrown in.
John borrows an idea from Bill James and has a look at the best and worst percentage players in the game.
Strange and unusual happenings in the world of baseball.
John has a look at small ball offenses in 2005. Which teams were playing small ball and which weren't?
Where have all the triples gone?
Some more thoughts on left-handed catchers, most of them from reader e-mail.
John ranks this year's crop of left-handed catchers. Then he tries to understand why there aren't any.
It's been a while since the Mets made the playoffs. That might be changing.
The best arms of 2005: center and left fielders.
A look at the 2005 season from a (very) different perspective.
John has a look at the best (and worst) outfield arms.
A look at what happens when the count goes to 3-0, with a digression on a couple of very short ballplayers, both real and fictional, and some reflections on baseball's Unwritten Code.
John concludes his study on how much that speedster on first base disrupts the pitcher, if at all.
Does a proficient base stealer on first base distract or disrupt the pitcher?
A follow-up to John's sacrifice fly study
John answers the age-old question.