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.
The 1909 Pirates in a poster celebrating their National League pennant. Frank Chance of the Chicago Cubs and John McGraw of the New York Giants, two teams the Pirates beat for the pennant, are being made to walk the plank.
In the World Series, Pittsburg faced the American League champion Detroit Tigers, led by triple crown winner Ty Cobb. The matchup was largely billed as one between the major leagues’ two superstars. Wagner thoroughly outplayed Cobb, and rookie Babe Adams won all three of his starts, as the Pirates won in seven games.
^In 1891 the United States Board on Geographic Names forced the city of Pittsburgh to undergo a controversial name change by having them drop the "h" at the end of the name, making the team's official name the "Pittsburg Pirates" from the adoption of the Pirates nickname until Pittsburgh was able to get the "h" restored to its name in 1911.
^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