1985 Seattle Mariners season

The Seattle Mariners season was their ninth since the franchise creation. They finished sixth in the American League West with a record of . Chuck Cottier, who managed the team in the final month of the 1984 season, managed the team for the entire year and had his contract renewed, before being fired in May 1986.

Outfielder Phil Bradley was the team's sole All-Star Game selection. Gorman Thomas won the Comeback Player of the Year Award. Thomas hit 32 home runs, a franchise record that stood until Ken Griffey Jr. hit 40 home runs in .

Pitchers Bill Swift, Brian Snyder, and Bill Wilkinson made their MLB debuts for the 1985 Mariners.

Regular season

July 9: Against the Toronto Blue Jays at the Kingdome in Seattle, Jays catcher Buck Martinez executed a double play by tagging out two runners at home plate. In the third inning, Phil Bradley was on second when Gorman Thomas singled. Bradley was tagged out at home, on a throw from Jesse Barfield to Martinez with a collision in which Martinez broke his ankle; he was sitting on the ground in agony and threw the ball to third base in an attempt to tag out Thomas. The throw went into left field and Thomas continued running; left fielder George Bell threw the ball back to Martinez, still seated on the ground in pain, who tagged Thomas out.

Season standings

Record vs. opponents

Notable transactions

June 3, 1985: Mike Schooler was drafted by the Mariners in the second round of the 1985 Major League Baseball draft.
June 20: Mike Stanton was released by the Mariners.

Roster

Player stats

Batting

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

Pitching

Starting pitchers

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

Other pitchers