1909 Pittsburgh Pirates season

1909 Pittsburgh Pirates
World Series Champions
National League Champions
LeagueNational League
BallparkExposition Park (since 1891)
Forbes Field
CityPittsburgh, Pennsylvania[a]
OwnersBarney Dreyfuss
ManagersFred Clarke
← 1908 Seasons 1910 →

The 1909 Pittsburgh[b] Pirates season was the 28th season for the Pittsburgh Pirates franchise, during which they won the National League pennant with a record of 110–42 and their first World Series over the Detroit Tigers. Led by shortstop Honus Wagner and outfielder-manager Fred Clarke, the Pirates scored the most runs in the majors. Wagner led the league in batting average, on-base percentage, slugging percentage, and runs batted in. Pirates owner Barney Dreyfuss opened the Pirates' new ballpark, named Forbes Field, on June 30, 1909.[1]

The Pirates' 110 wins remain a team record, a record they set in the last game of the season by beating the Cincinnati Reds 7–4 in muddy conditions on October 5. It is in fact the best regular season win percentage by any World Series winning team.


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  1. ^ Crazy '08: How a cast of Cranks, Rogues, Boneheads and Magnates created the Greatest Year in Baseball History, p. 105, by Cait Murphy, Smithsonian Books, a Division of Harper Collins, 2007, ISBN 978-0-06-088937-1