1986 Oakland Athletics season

The Oakland Athletics' 1986 season was a season in American baseball. It involved the A's finishing third in the American League West with a record of 76 wins and 86 losses.

Offseason

 * November 13, 1985: Bárbaro Garbey was traded by the Detroit Tigers to the Oakland Athletics for Dave Collins.
 * December 10, 1985: Mike Heath and Tim Conroy were traded by the Athletics to the St. Louis Cardinals for Joaquín Andújar.
 * January 17, 1986: Phil Stephenson and Bob Bathe (minors) were traded by the Athletics to the Chicago Cubs for Gary Jones (minors) and John Cox (minors).
 * February 1, 1986: Lenn Sakata was signed as a free agent with the Oakland Athletics.
 * March 21, 1986: Bárbaro Garbey was released by the Oakland Athletics.
 * March 30, 1986: Charlie O'Brien, Steve Kiefer, Mike Fulmer (minors) and Pete Kendrick (minors) were traded by the Athletics to the Milwaukee Brewers for Moose Haas.

Regular season

 * August 22, 1986: Mark McGwire made his major league debut against the New York Yankees. He had three at-bats and no hits. Three days later, McGwire hit his first major league home run off Walt Terrell of the Detroit Tigers in an 8-4 win.
 * September 12, 1986: In a game against the Cleveland Indians, Terry Steinbach hit a home run in his first Major League at-bat. Steinbach became the 54th player to achieve the feat.

Notable transactions

 * April 4, 1986: Jerry Willard was signed as a free agent by the Athletics.
 * May 20, 1986: Keith Atherton was traded by the Oakland Athletics to the Minnesota Twins for a player to be named later and cash. The Minnesota Twins sent Eric Broersma (minors) (May 23, 1986) to the Oakland Athletics to complete the trade.
 * May 23, 1986: Dave Stewart was signed as a free agent with the Oakland Athletics.
 * June 1, 1986: Dave Von Ohlen was purchased by the Athletics from the Miami Marlins.
 * July 10, 1986: Mike Bordick was signed by the Athletics as an amateur free agent.
 * July 10, 1986: Ozzie Canseco was signed as a free agent by the Oakland Athletics.
 * July 18, 1986: Rick Langford was released by the Athletics.

Draft picks

 * June 2, 1986: Bret Barberie was drafted by the Athletics in the 1st round (22nd pick) of the 1986 Major League Baseball draft (secondary phase), but did not sign.

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''

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

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

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

Awards and honors

 * José Canseco, American League Rookie of the Year
 * Dave Kingman, American League Record, Most Home Runs in the Final Season of a Career (35)