RESEARCH: Welcome, Expected Wins

If you take a gander at a starting pitcher's player page, you'll see a new statistic tucked in next to xERA: Expected Wins (xW). This measures, for starting pitchers, the number of wins we would expect them to have given: 1) how well they have pitched, as reflected by ERA, and 2) how strong their team's offense is, as reflected in runs per game.

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  For more information about the terms used in this article, see our Glossary Primer.