1920 Pittsburgh Pirates season

The 1920 Pittsburgh Pirates season was the 39th in franchise history; the 34th in the National League.

Regular season

 * Pirates pitcher Babe Adams had outstanding control, allowing only 18 bases on balls in 263 innings pitched.
 * October 2, 1920: The Cincinnati Reds and the Pirates played in the last tripleheader to date and the only one in the modern World Series era (post-1903). Umpire Peter Harrison officiated all three games.

Game log

 * Legend:      = Win       = Loss       = Tie Bold = Pirates team member
 * Legend:      = Win       = Loss       = Tie Bold = Pirates team member

Starters by position
''Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Other batters
''Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Starting pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Other pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Relief pitchers
Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts