Footnotes
- a The Finish column lists regular season results and excludes postseason play.
- b The Wins and Losses columns list regular season results and exclude any postseason play. Regular and postseason records are combined only at the bottom of the list.
- c The GB column lists "Games Back" from the team that finished in first place that season. It is determined by finding the difference in wins plus the difference in losses divided by two. In seasons that the Pirates finished in first place, the figure represents the number of games they finished ahead of the second place team.
- d NLCS stands for National League Championship Series.
- e MVP stands for Most Valuable Player.
- f CYA stands for Cy Young Award.
- g MOY stands for Manager of the Year.
- h ROY stands for National League Rookie of the Year.
- i The 1972 Major League Baseball strike forced the cancellation of the first seven games (thirteen game-days) of the season.
- j The 1981 Major League Baseball strike caused the season to split into two halves. This caused Major League Baseball to hold the Divisional Series so that the first- and second-half champions could play each other to determine playoff spots for the NLCS and World Series.
- k The 1994 Major League Baseball strike ended the season on August 11, as well as cancelling the entire postseason.
- l The official Pirates website uses the spelling of "Alleghenies" rather than "Alleghenys".
- m The Pirates first season at Recreation Park.
- n The Pirates final season at Recreation Park.
- o The Pirates first season at Exposition Park.
- p On June 29, 1909, the Pirates played their final game at Exposition Park. The two teams opened Forbes Field the following day, June 30, 1909.
- q The Pirates played their final game at Forbes Field on June 28, 1970. Three Rivers Stadium hosted its first Pirates' game on July 16, 1970.
- r The Pirates' final season at Three Rivers Stadium.
- s The Pirates first season at PNC Park.
Read more about this topic: List Of Pittsburgh Pirates Seasons