1986 Oakland Athletics season

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 were traded by the Athletics to the Chicago Cubs for Gary Jones and John Cox.
• 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 and Pete Kendrick 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.

  Season standings

Record vs. opponents

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 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 of the 1986 Major League Baseball draft, but did not sign.

  Roster

Player stats

Batting

Starters by position

Other batters

Pitching

Starting pitchers

Other pitchers

Relief pitchers

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

  Farm system