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1980 Seattle Mariners Trades and Transactions
(Franchise Encyclopedia: 1979 / 1981)
59-103, Finished 7th in AL West
View League Standings and Leaders
Scored 610 runs, Allowed 793 runs. Pythagorean W-L: 62-100
Manager: Darrell Johnson (39-65) and Maury Wills (20-38)
Ballpark: Kingdome (ballparks.com)
Attendance: 836,204 (13th of 14)
Park Factors  Over 100 favors batters, under 100 favors pitchers.
  multi-year: Batting - 101, Pitching - 103;   one-year: Batting - 103, Pitching - 105
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Baseball Hall of Fame: Team Uniforms

1979 / 1981 Trades and Transactions

Transactions listed are from November 1 of previous year to April 1 of the following year.

October 4, 1979

Released Bill Plummer.

November 1, 1979

Wayne Twitchell granted Free Agency.

Bobby Valentine granted Free Agency.

Traded Ruppert Jones and Jim Lewis to the New York Yankees. Received Rick Anderson, Jim Beattie, Juan Beniquez and Jerry Narron.

November 9, 1979

Purchased Dan O'Brien from the St. Louis Cardinals.

November 21, 1979

Purchased Kip Young from the Detroit Tigers.

December 1, 1979

Willie Horton granted Free Agency.

December 5, 1979

Traded John Montague to the California Angels. Received a player to be named later. The California Angels sent Jim Anderson (December 5, 1979) to the Seattle Mariners to complete the trade.

December 6, 1979

Traded a player to be named later, Rob Pietroburgo (minors) and Rafael Vasquez to the Cleveland Indians. Received Ted Cox. The Seattle Mariners sent Bud Anderson (March 29, 1980) to the Cleveland Indians to complete the trade.

December 20, 1979

Signed Willie Horton as a free agent.

1980

Released Leroy Stanton.

January 11, 1980

Drafted Bill Mooneyham in the 1st round (13th pick) of the 1980 amateur draft (January Secondary), but did not sign the player.

Drafted Dan Firova in the 2nd round of the 1980 amateur draft (January Secondary).

March 20, 1980

Signed Len Randle as a free agent.

March 25, 1980

Released Danny Walton.

March 29, 1980

Released Dan O'Brien.

April 1, 1980 (Standings)

Sold Len Randle to the Chicago Cubs.

Traded Odell Jones to the Pittsburgh Pirates. Received a player to be named later and cash. The Pittsburgh Pirates sent Larry Andersen (October 29, 1980) to the Seattle Mariners to complete the trade.

April 6, 1980 (Standings)

Signed Kim Allen as a free agent.

April 9, 1980 (Standings)

Selected Dave Heaverlo off waivers from the Oakland Athletics.

April 14, 1980 (Standings)

Signed Manny Sarmiento as a free agent.

April 24, 1980 (Standings)

Purchased Dave Roberts from the Pittsburgh Pirates.

June 3, 1980 (Standings)

Drafted Harold Reynolds in the 1st round (2nd pick) of the 1980 amateur draft (June Secondary).

Drafted Darnell Coles in the 1st round (6th pick) of the 1980 amateur draft. Player signed June 13, 1980.

Drafted Matt Young in the 2nd round of the 1980 amateur draft.

Drafted Donell Nixon in the 10th round of the 1980 amateur draft.

Drafted Ed Vande Berg in the 13th round of the 1980 amateur draft.

Drafted John Moses in the 16th round of the 1980 amateur draft.

Drafted Rusty McNealy in the 17th round of the 1980 amateur draft.

Drafted Ernest Riles in the 21st round of the 1980 amateur draft, but did not sign the player.

June 14, 1980 (Standings)

Signed Paul Serna as an amateur free agent.

June 16, 1980 (Standings)

Purchased Casey Parsons from the San Francisco Giants.

June 19, 1980 (Standings)

Sold Charlie Beamon to the Toronto Blue Jays.

June 20, 1980 (Standings)

Purchased Marc Hill from the San Francisco Giants.

August 8, 1980 (Standings)

Released Bob Stinson.

October 22, 1980

Bill Stein granted Free Agency.

October 24, 1980

Juan Beniquez granted Free Agency.

November 4, 1980

Dave Roberts granted Free Agency.

November 18, 1980

Traded a player to be named later and Larry Milbourne to the New York Yankees. Received Brad Gulden and $150,000. The Seattle Mariners sent Brad Gulden (May 18, 1981) to the New York Yankees to complete the trade.

November 28, 1980

Marc Hill granted Free Agency.

December 6, 1980

Purchased Mario Guerrero from the Oakland Athletics.

December 8, 1980

Drafted Gary Gray from the Cleveland Indians in the 1980 rule 5 draft.

John Hobbs drafted by the Minnesota Twins in the 1980 rule 5 draft.

December 12, 1980

Traded Larry Cox, Rick Honeycutt, Willie Horton, Mario Mendoza and Leon Roberts to the Texas Rangers. Received Steve Finch (minors), Brian Allard, Rick Auerbach, Ken Clay, Jerry Don Gleaton and Richie Zisk.

Traded Byron McLaughlin to the Minnesota Twins. Received Willie Norwood.

December 19, 1980

Traded Steve Stroughter to the Minnesota Twins. Received Mike Bacsik.

February 17, 1981

Signed Dave Skaggs as a free agent.

March 7, 1981

Traded Carlos Diaz to the Atlanta Braves. Received Jeff Burroughs.

March 26, 1981

Released Ted Cox.

Released Rob Dressler.

Released Dave Heaverlo.

Released Willie Norwood.

Traded Rod Craig to the Cleveland Indians. Received Wayne Cage.

March 28, 1981

Released Mike Bacsik.

March 31, 1981

Released Dave Skaggs.

April 1, 1981

Released Mario Guerrero.

The transaction information used here was obtained free of charge from and is copyrighted by RetroSheet. Last transaction is September 30, 2009.

1979 / 1981 Trades and Transactions

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