1991 Seattle Mariners season

It was the first winning season in franchise history,[1] as the Mariners finished fifth in the American League West with a record of 83–79 (.512).

[3] After the season, the contract of third-year manager Jim Lefebvre was not renewed despite his performance,[4][5] and he was succeeded by third-base coach Bill Plummer in 1992.

[6][7] This was the last full season under the ownership of Jeff Smulyan; the club was sold the following July.

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