Sabermetric Primers

Anatomy of a Luck vs. Skill Evaluation

Bill Petti | Anatomy of a Luck vs. Skill Evaluation

Everything You Always Wanted to Know About UZR But Were Afraid to Ask

The ability to substantiate defensive performance in an analytical form has become, in essence, almost a necessity for sabermetricians in need of verification of whether a fielder is a solid...

Is Ubaldo Jimenez the Rockies Worst Starting Pitcher?

Very few pitchers over the last couple of seasons have been as fun to watch as Ubaldo Jimenez. The right-hander has made two straight Opening Day starts and has since been tagged with "ace" status....

The Definitive Sabermetric Guide to Managing

Shouldn't managers do their job more innovatively and sabermetrically? Shouldn't their GM's push them to do so?

A Missing Element in Pitcher Batted Ball Tendency?

Simply looking at percentages isn't enough! The true impact of a pitcher's batted ball splits cannot be determined without looking at his strikeout rate.

A Pitch F/x Primer: Some tips on Run Values, Pitch Classifications, and Heat Maps

Since 2008 (really 2007), Pitchf/x data has tracked every pitch thrown in the major leagues. As a result, the sabermetric community has learned a great deal about how various pitches and pitchers themselves work by analyzing this data. Here's how it could be misused.

Baseball Stat Acronyms Pronunciation Guide

Baseball Stat Acronyms Pronuciation Guide

RA versus ERA 1871-2010: Baseball Databank Data Dump 2.3.1

Earned Run Average distorts the contribution of pitchers in multiple ways, yet it is still widely used. Until everyone gets on board with a Runs Allowed scale, here are the easy conversions.

Statistical Head Scratchers: The Hit Tool

While it may not be impossible, it is clearly not only difficult to define the hit tool, but also to isolate it statistically. At least in theory, I think a combination of both line drive percentage and contact rate best exemplify the underpinnings behind the concept our experts articulated above.

Baseball-Reference's WAR in Plain English

Rick Reuschel leads all eligible non-Hall of Famers in Baseball-Reference's pitching Wins Above Replacement. (photo via Wikipedia) "My Thing" is comparing players across eras to formulate fun...

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