The 1890 Chicago Pirates baseball team was a member of the short lived Players' League.
They compiled a 75–62 record, good for fourth place, ten games behind the league champion Boston Reds.
After the season, the league folded, and the Pirates were bought out by the Chicago Colts.
Catchers Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg.
= Batting average; HR = Home runs; RBI = Runs batted in Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts