Nate Silver, the statistician who attained national fame for his accurate projections about the 2008 and 2012 presidential elections, is parting ways with The New York Times and moving his FiveThirtyEight franchise to ESPN, the sports empire controlled by the Walt Disney Company, according to ESPN employees with direct knowledge of his plans.

At ESPN, Mr. Silver is expected to have a wide-ranging portfolio. Along with his writing and number-crunching, he will most likely be a regular contributor to “Olbermann,” the late-night ESPN2 talk show hosted by Keith Olbermann that will have its debut at the end of August. In political years, he will also have a role at ABC News, which is owned by Disney.

An ESPN spokeswoman declined to comment on Friday night. Mr. Silver declined to comment. The employees, who spoke on the condition of anonymity, said that Mr. Silver’s deal could be announced as soon as Monday.

Before creating statistical models for elections, Mr. Silver was a baseball sabermetrician who built a highly effective system for projecting how players would perform in the future. For a time he was a managing partner of Baseball Prospectus.