The Washington Nationals today announced they have exercised Davey Johnson’s managerial option for the 2012 season. Johnson took over as Nationals manager on June 27, when Jim Riggleman quit.

The Nationals won 15 of their last 20 games to bring Johnson’s record to 40-43 as a D.C.-based big league club finished as high as third place for the first time since 1945.

A former World Series winning player and manager, Johnson has managed the Nationals, Dodgers, Orioles, Reds, and Mets in 15 seasons, compiling a 1188-931 record and a .561 career winning percentage. In 15 big league seasons, Johnson’s clubs finished first or second 11 times, including five division titles, one pennant and one World Championship earned with the Mets in 1986. Johnson’s clubs authored six 90-win campaigns and his 1986 and ’88 Mets registered 108 and 100 victories, respectively.In 1997, Johnson was named American League Manager of the Year after guiding the Orioles to a 98-64 (.605) record to win the AL East.

He is the only player in the history of the game to have hit behind the legitimate all-time home run king Hank Aaron and Japan’s all-time home run king, Sadaharu Oh.