The 1991 Seattle Mariners season was the 15th since the franchise's creation. It was the first winning season in franchise history, as the Mariners finished fifth in the American League West with a record of . Home attendance at the Kingdome was the highest to date, exceeding 2.1 million.
After the season, the contract of third-year manager Jim Lefebvre was not renewed despite his performance, and he was succeeded by third-base coach Bill Plummer in 1992.
This was the last full season under the ownership of Jeff Smulyan; the club was sold the following July.
Offseason November 25, 1990: Rich Amaral was signed as a free agent by the Mariners.Rich Amaral page at Baseball Reference
Regular season July 18, 1991: Ken Griffey Jr. and Omar Vizquel each had five hits in one game at Milwaukee. September 30: Nolan Ryan of the Texas Rangers struck out Tino Martinez of the M's for the 5,500th strikeout in his career. Griffey, age 21, became the youngest player in 35 years to reach 100 RBI in a season. October 4: The Mariners defeated the Chicago White Sox to win their 82nd game, guaranteeing with their first winning season in franchise history.
Season standings
Record vs. opponents
Notable transactions May 17, 1991: The Mariners traded cash and a player to be named later to the New York Yankees for Mike Blowers; Jim Blueberg (minors) was sent to the Yankees on June 22.Mike Blowers page at Baseball Reference June 22: Randy Kramer signed with the Mariners.Randy Kramer page at Baseball Reference
Roster 1991 Seattle Mariners Roster Pitchers Catchers
Infielders Outfielders Manager
Coaches (bench) (hitting) (first base) (pitching) (third base) (bullpen)
Game log Regular season
|- style="text-align:center;" | Legend: = Win = Loss = PostponementBold = Mariners team member
Player stats = Indicates team leader
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 Pos Player G AB H Avg. HR RBI C Dave Valle 132 324 63 .194 8 32 1B Pete O'Brien 152 560 139 .248 17 88 2B Harold Reynolds 161 631 160 .254 3 57 3B Edgar Martínez 150 544 167 .307 14 52 SS Omar Vizquel 142 426 98 .230 1 41 LF Greg Briley 139 381 99 .260 2 26 CF Ken Griffey Jr. 154 548 179 .327 22 100 RF Jay Buhner 137 406 99 .244 27 77 DH Alvin Davis 145 462 102 .221 12 69
Other batters Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in Player G AB H Avg. HR RBI Dave Cochrane 65 178 44 .247 2 22 Henry Cotto 66 177 54 .305 6 23 Tracy Jones 79 175 44 .251 3 24 Scott Bradley 83 172 35 .203 0 11 Jeff Schaefer 84 164 41 .250 1 11 Tino Martinez 36 112 23 .205 4 9 Alonzo Powell 57 111 24 .216 3 12 Ken Griffey Sr. 30 85 24 .282 1 9 Rich Amaral 14 16 1 .063 0 0 Patrick Lennon 9 8 1 .125 0 1 Matt Sinatro 5 8 2 .250 0 1 Chris Howard 9 6 1 .167 0 0
Pitching
Starting pitchers Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts Player G IP W L ERA SO Randy Johnson 33 201.1 13 10 3.98 228 Brian Holman 30 195.1 13 14 3.69 108 Rich DeLucia 32 182.0 12 13 5.09 98 Bill Krueger 35 175.0 11 8 3.60 91 Erik Hanson 27 174.2 8 8 3.81 143
Other pitchers Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts Player G IP W L ERA SO Scott Bankhead 17 60.2 3 6 4.90 28 Pat Rice 7 21.0 1 1 3.00 12 Dave Fleming 9 17.2 1 0 6.62 11
Relief pitchers Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts Player G W L SV ERA SO Bill Swift 71 1 2 17 1.99 48 Mike Jackson 72 7 7 14 3.25 74 Russ Swan 63 6 2 2 3.43 33 Rob Murphy 57 0 1 4 3.00 34 Mike Schooler 34 3 3 7 3.67 31 Calvin Jones 27 2 2 2 2.53 42 Dave Burba 22 2 2 1 3.68 16 Gene Harris 8 0 0 1 4.05 6 Keith Comstock 1 0 0 0 54.00 0
Awards and honors Harold Reynolds won the Roberto Clemente Award Ken Griffey Jr. was the team's lone All-Star Game selection and won a Gold Glove Award.
Farm system
SourceJohnson, Lloyd, and Wolff, Miles, ed., The Encyclopedia of Minor League Baseball, 2nd and 3rd editions. Durham, North Carolina: Baseball America, 1997 and 2007
References
External links 1991 Seattle Mariners at Baseball Reference 1991 Seattle Mariners team page at www.baseball-almanac.com