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Nathaniel Read Silver (b. 1978, East Lansing, Michigan; now residing in Chicago, Illinois) is Managing Partner of Baseball Prospectus. He is best known for inventing PECOTA, a system for forecasting the performance and career development of Major League Baseball players. In 2007 he began to publish analyses and predictions of U.S. presidential primaries and the general election, initially under the pseudonym "Poblano" and later under his own name.

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