Win Expectancy

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The chance of winning, at a certain point in the game. This game state is typically based on the inning, score, base, and out. However, you can include any parameter, including but not limited to, the count, park, identity of the players, the climate, and anything else that has an impact on the chances of a team winning a game.

The Win Expectancy is, at its core, based on the Run Expectancy (RE). An offshoot of Win Expectancy is Win Probability Added (WPA).

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