Archive for January 2008

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.