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January 25, 2012

Spinning Yarn: Last Pitch

by Mike Fast

One of our finest analytical minds says farewell and rides off into the sabermetric sunset to join an MLB team, introducing our newest addition in the process.

December 21, 2011

Spinning Yarn: Hit-and-Run Success is No Accident

by Mike Fast

The hit-and-run is much maligned as a small-ball tactic, but it's a surprisingly successful strategy.

November 22, 2011

Spinning Yarn: How Does Quality of Contact Relate to BABIP?

by Mike Fast

Mike continues his investigation of HITf/x data to glean more insights into whether pitchers can prevent hits on balls in play.

November 16, 2011

Spinning Yarn: Who Controls How Hard the Ball is Hit?

by Mike Fast

When a batter and pitch face off, which has a greater effect on how hard the ball is hit, and what can that tell us about pitcher BABIP?

October 26, 2011

Spinning Yarn: Can We Predict Hot and Cold Zones for Hitters?

by Mike Fast

When is hot truly hot, and when is it not?

September 24, 2011

Spinning Yarn: Removing the Mask Encore Presentation

by Mike Fast

In case you missed Mike Fast's extraordinary research into quantifying the heretofore hidden contributions of catchers, we're moving it back to the top of the list for the weekend.

September 7, 2011

Spinning Yarn: Home Plate Umpire Positioning

by Mike Fast

Does the way an umpire positions himself behind home plate affect the boundaries of his strike zone?

August 17, 2011

Spinning Yarn: Why are Batters Hit by Pitches?

by Mike Fast

What factors determine how often hitters take one for the team?

August 4, 2011

Premium Article Spinning Yarn: Counsell for the Defense

by Mike Fast

Dissecting Craig Counsell's 45-at-bat hitless streak

July 20, 2011

Spinning Yarn: A Zone of Their Own

by Mike Fast

As Jose Bautista can attest, the percentage of pitches a batter sees in the strike zone tells us a good deal about his capabilities.

June 15, 2011

Spinning Yarn: Vogelsong Poetry

by Mike Fast

Examining the approach that has made Ryan Vogelsong a giant among Giants with the aid of PITCHf/x.

June 1, 2011

Spinning Yarn: The Real Strike Zone, Part 2

by Mike Fast

When it comes to determining the actual upper and lower boundaries of the zone, pitchers may have more to tell us than the players at the plate.

May 11, 2011

Spinning Yarn: Speed Traps

by Mike Fast

How can we distinguish between benign fluctuations in fastball speed and those that indicate injury or ineffectiveness ahead?

April 27, 2011

Spinning Yarn: A Soria Subject

by Mike Fast

Do his early-season struggles suggest that Royals closer Joakim Soria's best days lie behind him, or can he succeed with a different style?

March 30, 2011

Spinning Yarn: Do Spring Speeds Matter?

by Mike Fast

Mike examines whether velocity changes in March and April can reveal whether the radar gun will be a pitcher's friend or foe throughout the season.

March 2, 2011

Spinning Yarn: How Accurate is PitchTrax?

by Mike Fast

Before you yell at the umpire, consider making a few adjustments to your dataset.

February 16, 2011

Spinning Yarn: The Real Strike Zone

by Mike Fast

Examining umpire calling and catcher framing leads to thought-provoking questions about the amorphous nature of the strike zone.

January 19, 2011

Premium Article Spinning Yarn: Rafael Soriano in King Mo's Court

by Mike Fast

With the addition of Soriano, the Yankees have another hurler with a strong cut fastball.

December 16, 2010

Premium Article Spinning Yarn: Why The Yankees Need Andy Pettitte

by Mike Fast

A look at PitchF/X data illustrates how important it is to the Bronx Bombers that the left-hander put off retirement for at least one more year.

December 9, 2010

Spinning Yarn: The Forkball

by Mike Fast

What are some of the distinguishing characters of one of baseball's most unknown pitches?

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