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 →

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