xRV: The best pitches and pitchers of 2020

Earlier this summer, I informally introduced a pitch quality metric called Expected Run Value (xRV). This was in a piece for South Side Hit Pen, Sports Illustrated’s White Sox site. The article analyzed two unsung heroes of Chicago’s bullpen, Evan Marshall and Jimmy Cordero, as measured by various metrics including xRV. The basis of xRV... Continue Reading →

ShiftR : An Introduction

Back in 2016, a mere 13% of MLB plate appearances involved a shifted defense. In 2020, that percentage has nearly tripled to 36%. Strategic defensive positioning has become widely accepted and increasingly prevalent in MLB. Since all MLB teams have an analytics department, most teams are likely leveraging internal analysis to develop a strategic defense... Continue Reading →

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