| Friday, January 10 |
| Former Athletic Roy Johnson dies in Scottsdale, AZ at the age of 91. |
| Wednesday, January 15 |
| Former Athletic Fred Thomas dies in Rice Lake, WI at the age of 94. |
| Friday, March 7 |
| Former Athletic Jimmy Moore dies in Memphis, TN at the age of 83. |
| Monday, April 7 |
| » Major-league debuts: John Kruk (Padres) |
| Tuesday, April 8 |
| » Lost to Twins (1-0), 3-2 | Oakland-Alameda County Stadium (0-1) | 0-1 | |
| » W: Frank Viola (1-0) L: Chris Codiroli (0-1) S: Ron Davis (1) | Second | 1 out |
| Wednesday, April 9 |
| » Lost to Twins (2-0), 5-4 | Oakland-Alameda County Stadium (0-2) | 0-2 | Lost 2 |
| » W: Mike Smithson (1-0) L: Jay Howell (0-1) | Third | 2 out |
| Thursday, April 10 |
| » Defeated Twins (2-1), 3-0 | Oakland-Alameda County Stadium (1-2) | 1-2 | |
| » W: Moose Haas (1-0) L: John Butcher (0-1) S: Jay Howell (1) | Second | 1 out |
| Friday, April 11 |
| » Lost to Angels (2-2), 10-3 | Oakland-Alameda County Stadium (1-3) | 1-3 | |
| » W: Ron Romanick (1-0) L: Rick Langford (0-1) S: Ken Forsch (1) | Third | 2 out |
| Saturday, April 12 |
| » Lost to Angels (3-2), 9-3 | Oakland-Alameda County Stadium (1-4) | 1-4 | Lost 2 |
| » W: Kirk McCaskill (1-0) L: Joaquin Andujar (0-1) | Third | 2 out |
| Sunday, April 13 |
| » Defeated Angels (3-3), 11-7 | Oakland-Alameda County Stadium (2-4) | 2-4 | |
| » W: Chris Codiroli (1-1) L: Mike Witt (0-1) | Third | 2 out |
| Monday, April 14 |
| » Defeated Twins (3-4), 7-6 | Hubert H. Humphrey Metrodome (1-0) | 3-4 | Won 2 |
| » W: Keith Atherton (1-0) L: Roy Smith (0-1) S: Jay Howell (2) | Second | 1 out |
| Tuesday, April 15 |
| » Defeated Twins (3-5), 8-2 | Hubert H. Humphrey Metrodome (2-0) | 4-4 | Won 3 |
| » W: Moose Haas (2-0) L: Bill Latham (0-1) | Third | 1 out |
| Wednesday, April 16 |
| » Lost to Twins (4-5), 7-5 | Hubert H. Humphrey Metrodome (2-1) | 4-5 | |
| » W: Ron Davis (1-0) L: Keith Atherton (1-1) | Fourth | 1½ out |
| Friday, April 18 |
| » Defeated Mariners (5-5), 4-1 | Kingdome (1-0) | 5-5 | |
| » W: Chris Codiroli (2-1) L: Mike Moore (1-1) S: Jay Howell (3) | Fourth | 1½ out |
| Saturday, April 19 |
| » Defeated Mariners (5-6), 7-2 | Kingdome (2-0) | 6-5 | Won 2 |
| » W: Jose Rijo (1-0) L: Mark Langston (0-2) | Third | ½ out |
| Sunday, April 20 |
| » Defeated Mariners (5-7), 9-3 | Kingdome (3-0) | 7-5 | Won 3 |
| » W: Moose Haas (3-0) L: Matt Young (2-1) | Second | ½ out |
| Monday, April 21 |
| » Defeated Angels (8-6), 6-2 | Anaheim Stadium (1-0) | 8-5 | Won 4 |
| » W: Joaquin Andujar (1-1) L: Ron Romanick (2-1) S: Steve Ontiveros (1) | First | -- |
| Tuesday, April 22 |
| » Lost to Angels (9-6), 5-1 | Anaheim Stadium (1-1) | 8-6 | |
| » W: Kirk McCaskill (2-1) L: Rick Langford (0-2) | Second | ½ out |
| Wednesday, April 23 |
| » Lost to Angels (10-6), 5-0 | Anaheim Stadium (1-2) | 8-7 | Lost 2 |
| » W: Mike Witt (2-1) L: Chris Codiroli (2-2) | Third | 1½ out |
| Thursday, April 24 |
| » Lost to Mariners (7-9), 3-1 | Oakland-Alameda County Stadium (2-5) | 8-8 | Lost 3 |
| » W: Mark Langston (1-2) L: Jose Rijo (1-1) S: Karl Best (1) | Third | 2 out |
| Friday, April 25 |
| » Defeated Mariners (7-10), 11-2 | Oakland-Alameda County Stadium (3-5) | 9-8 | |
| » W: Moose Haas (4-0) L: Matt Young (2-2) | Third | 1 out |
| Saturday, April 26 |
| » Defeated Mariners (7-11), 5-3 | Oakland-Alameda County Stadium (4-5) | 10-8 | Won 2 |
| » W: Joaquin Andujar (2-1) L: Milt Wilcox (0-4) | Second | 1 out |
| Sunday, April 27 |
| » Defeated Mariners (7-12), 1-0 | Oakland-Alameda County Stadium (5-5) | 11-8 | Won 3 |
| » W: Rick Langford (1-2) L: Mike Morgan (1-2) S: Jay Howell (4) | Second | 1 out |
| Tuesday, April 29 |
| » Lost to Brewers (8-9), 5-4 | County Stadium (0-1) | 11-9 | |
| » W: Bob McClure (2-0) L: Jay Howell (0-2) | Second | 2 out |
| Wednesday, April 30 |
| » Lost to Brewers (9-9), 5-1 | County Stadium (0-2) | 11-10 | Lost 2 |
| » W: Teddy Higuera (3-1) L: Jose Rijo (1-2) | Second | 2 out |
| Thursday, May 1 |
| » Defeated Brewers (9-10), 7-2 | County Stadium (1-2) | 12-10 | |
| » W: Moose Haas (5-0) L: Tim Leary (2-2) | Second | 2 out |
| Friday, May 2 |
| » Defeated Red Sox (12-9), 4-1 | Fenway Park (1-0) | 13-10 | Won 2 |
| » W: Joaquin Andujar (3-1) L: Al Nipper (2-3) | Second | 1 out |
| Saturday, May 3 |
| » Lost to Red Sox (13-9), 4-3 | Fenway Park (1-1) | 13-11 | |
| » W: Sammy Stewart (2-1) L: Chris Codiroli (2-3) S: Bob Stanley (3) | Second | 1 out |
| Sunday, May 4 |
| » Lost to Red Sox (14-9), 4-1 | Fenway Park (1-2) | 13-12 | Lost 2 |
| » W: Roger Clemens (5-0) L: Rick Langford (1-3) S: Bob Stanley (4) | Second | 1 out |
| Monday, May 5 |
| » Lost to Blue Jays (11-14), 10-6 | Exhibition Stadium (0-1) | 13-13 | Lost 3 |
| » W: Mark Eichhorn (3-2) L: Bill Krueger (0-1) | Second | 1 out |
| Tuesday, May 6 |
| » Defeated Blue Jays (11-15), 17-3 | Exhibition Stadium (1-1) | 14-13 | |
| » W: Moose Haas (6-0) L: Jimmy Key (0-3) | Second | 1 out |
| Wednesday, May 7 |
| » Defeated Brewers (14-11), 7-6 | Oakland-Alameda County Stadium (6-5) | 15-13 | Won 2 |
| » W: Joaquin Andujar (4-1) L: Bill Wegman (0-2) S: Steve Ontiveros (2) | Second | 1 out |
| Thursday, May 8 |
| » Defeated Brewers (14-12), 2-1 | Oakland-Alameda County Stadium (7-5) | 16-13 | Won 3 |
| » W: Chris Codiroli (3-3) L: Teddy Higuera (4-2) S: Steve Ontiveros (3) | First | -- |
| Friday, May 9 |
| » Lost to Red Sox (18-10), 9-6 | Oakland-Alameda County Stadium (7-6) | 16-14 | |
| » W: Bob Stanley (1-1) L: Keith Atherton (1-2) S: Joe Sambito (2) | First | -- |
| Saturday, May 10 |
| » Lost to Red Sox (19-10), 4-2 | Oakland-Alameda County Stadium (7-7) | 16-15 | Lost 2 |
| » W: Bruce Hurst (3-2) L: Steve Ontiveros (0-1) | First | -- |
| Sunday, May 11 |
| » Lost to Red Sox (20-10), 6-5 | Oakland-Alameda County Stadium (7-8) | 16-16 | Lost 3 |
| » W: Oil Can Boyd (3-3) L: Moose Haas (6-1) S: Joe Sambito (3) | Third | 2 out |
| Monday, May 12 |
| » Lost to Blue Jays (14-18), 5-3 | Oakland-Alameda County Stadium (7-9) | 16-17 | Lost 4 |
| » W: Jim Clancy (3-2) L: Joaquin Andujar (4-2) S: Mark Eichhorn (2) | Third | 2 out |
| Tuesday, May 13 |
| » Defeated Blue Jays (14-19), 6-3 | Oakland-Alameda County Stadium (8-9) | 17-17 | |
| » W: Bill Mooneyham (1-0) L: Dennis Lamp (0-3) | Third | 2 out |
| Wednesday, May 14 |
| » Defeated Blue Jays (14-20), 9-4 | Oakland-Alameda County Stadium (9-9) | 18-17 | Won 2 |
| » W: Curt Young (1-0) L: Dave Stieb (0-5) | Third | 1 out |
| Friday, May 16 |
| » Defeated Orioles (18-15), 8-4 | Memorial Stadium (1-0) | 19-17 | Won 3 |
| » W: Moose Haas (7-1) L: Storm Davis (3-2) | Third | 1 out |
| Saturday, May 17 |
| » Lost to Orioles (19-15), 8-2 | Memorial Stadium (1-1) | 19-18 | |
| » W: Scott McGregor (3-3) L: Rick Langford (1-4) | Third | 1 out |
| Sunday, May 18 |
| » Lost to Orioles (20-15), 13-4 | Memorial Stadium (1-2) | 19-19 | Lost 2 |
| » W: Rich Bordi (2-0) L: Chris Codiroli (3-4) | Third | 1½ out |
| Tuesday, May 20 |
| » Defeated Yankees (23-15), 2-1 | Yankee Stadium (1-0) | 20-19 | |
| » W: Curt Young (2-0) L: Ron Guidry (4-3) S: Jay Howell (5) | Third | 1½ out |
| Wednesday, May 21 |
| » Lost to Yankees (24-15), 10-4 | Yankee Stadium (1-1) | 20-20 | |
| » W: Joe Niekro (5-2) L: Eric Plunk (0-1) | Third | 1½ out |
| Thursday, May 22 |
| » Lost to Yankees (25-15), 4-3 | Yankee Stadium (1-2) | 20-21 | Lost 2 |
| » W: Dave Righetti (3-1) L: Jay Howell (0-3) | Third | 1½ out |
| Friday, May 23 |
| » Defeated Tigers (18-20), 5-1 | Tiger Stadium (1-0) | 21-21 | |
| » W: Jose Rijo (2-2) L: Dave LaPoint (1-3) | Third | ½ out |
| Saturday, May 24 |
| » Lost to Tigers (19-20), 4-1 | Tiger Stadium (1-1) | 21-22 | |
| » W: Jack Morris (4-4) L: Chris Codiroli (3-5) | Third | 1 out |
| Sunday, May 25 |
| » Lost to Tigers (20-20), 2-1 | Tiger Stadium (1-2) | 21-23 | Lost 2 |
| » W: Walt Terrell (6-1) L: Curt Young (2-1) | Third | 1 out |
| Monday, May 26 |
| » Lost to Tigers (21-20), 5-4 | Tiger Stadium (1-3) | 21-24 | Lost 3 |
| » W: Guillermo Hernandez (2-2) L: Jay Howell (0-4) | Third | 2 out |
| Wednesday, May 28 |
| » Lost to Orioles (26-17), 9-5 | Oakland-Alameda County Stadium (9-10) | 21-25 | Lost 4 |
| » W: Rich Bordi (3-0) L: Steve Ontiveros (0-2) | Fourth | 3½ out |
| Thursday, May 29 |
| » Lost to Orioles (27-17), 8-6 | Oakland-Alameda County Stadium (9-11) | 21-26 | Lost 5 |
| » W: Brad Havens (2-1) L: Chris Codiroli (3-6) S: Don Aase (12) | Fourth | 4 out |
| Friday, May 30 |
| » Defeated Yankees (30-17), 6-3 | Oakland-Alameda County Stadium (10-11) | 22-26 | |
| » W: Curt Young (3-1) L: Joe Niekro (5-3) S: Bill Mooneyham (1) | Fourth | 3 out |
| » Major-league debuts: Doug Drabek (Yankees) |
| Saturday, May 31 |
| » Defeated Yankees (30-18), 4-3 | Oakland-Alameda County Stadium (11-11) | 23-26 | Won 2 |
| » W: Steve Ontiveros (1-2) L: Ron Guidry (4-4) | Fourth | 2 out |
| Sunday, June 1 |
| » Lost to Yankees (31-18), 7-1 | Oakland-Alameda County Stadium (11-12) | 23-27 | |
| » W: Tommy John (3-0) L: Dave Leiper (0-1) | Third | 2 out |
| Monday, June 2 |
| » Defeated Tigers (23-24), 7-1 | Oakland-Alameda County Stadium (12-12) | 24-27 | |
| » W: Chris Codiroli (4-6) L: Dan Petry (4-5) | Fourth | 2 out |
| Tuesday, June 3 |
| » Defeated Tigers (23-25), 6-4 | Oakland-Alameda County Stadium (13-12) | 25-27 | Won 2 |
| » W: Curt Young (4-1) L: Dave LaPoint (2-4) S: Jose Rijo (1) | Fourth | 2 out |
| Wednesday, June 4 |
| » Lost to Tigers (24-25), 8-5 | Oakland-Alameda County Stadium (13-13) | 25-28 | |
| » W: Jack Morris (5-4) L: Eric Plunk (0-2) S: Guillermo Hernandez (8) | Fourth | 3 out |
| Thursday, June 5 |
| » Lost to White Sox (20-31), 9-5 | Comiskey Park I (0-1) | 25-29 | Lost 2 |
| » W: Neil Allen (2-0) L: Moose Haas (7-2) | Fourth | 3½ out |
| Friday, June 6 |
| » Lost to White Sox (21-31), 6-4 | Comiskey Park I (0-2) | 25-30 | Lost 3 |
| » W: Richard Dotson (4-5) L: Rick Langford (1-5) S: Joel McKeon (1) | Fourth | 4½ out |
| Saturday, June 7 |
| » Lost to White Sox (22-31), 10-3 | Comiskey Park I (0-3) | 25-31 | Lost 4 |
| » W: Joe Cowley (2-3) L: Chris Codiroli (4-7) | Fourth | 6 out |
| Sunday, June 8 |
| » Lost to White Sox (23-31), 8-5 | Comiskey Park I (0-4) | 25-32 | Lost 5 |
| » W: Joel Davis (3-3) L: Curt Young (4-2) S: Dave J. Schmidt (2) | Fourth | 7 out |
| Monday, June 9 |
| » Lost to Indians (27-28), 6-5 | Cleveland Stadium (0-1) | 25-33 | Lost 6 |
| » W: Scott Bailes (7-4) L: Jose Rijo (2-3) | Third | 7 out |
| Tuesday, June 10 |
| » Lost to Indians (28-28), 8-7 | Cleveland Stadium (0-2) | 25-34 | Lost 7 |
| » W: Rich Yett (3-0) L: Jose Rijo (2-4) | Fifth | 8 out |
| Wednesday, June 11 |
| » Lost to Indians (29-28), 7-4 | Cleveland Stadium (0-3) | 25-35 | Lost 8 |
| » W: Ken Schrom (5-2) L: Rick Langford (1-6) S: Scott Bailes (5) | Fourth | 9 out |
| Friday, June 13 |
| » Lost to Rangers (34-25), 2-1 | Oakland-Alameda County Stadium (13-14) | 25-36 | Lost 9 |
| » W: Jose Guzman (6-6) L: Curt Young (4-3) S: Greg Harris (12) | Fourth | 10 out |
| Saturday, June 14 |
| » Defeated Rangers (34-26), 3-2 | Oakland-Alameda County Stadium (14-14) | 26-36 | |
| » W: Eric Plunk (1-2) L: Ed Correa (4-4) S: Steve Ontiveros (4) | Fourth | 9 out |
| Sunday, June 15 |
| » Defeated Rangers (34-27), 9-2 | Oakland-Alameda County Stadium (15-14) | 27-36 | Won 2 |
| » W: Chris Codiroli (5-7) L: Bobby Witt (3-5) S: Doug Bair (1) | Third | 8 out |
| Monday, June 16 |
| » Lost to Royals (32-31), 3-2 | Oakland-Alameda County Stadium (15-15) | 27-37 | |
| » W: Buddy Black (4-4) L: Jose Rijo (2-5) S: Dan Quisenberry (6) | Third | 8 out |
| Tuesday, June 17 |
| » Lost to Royals (33-31), 2-1 | Oakland-Alameda County Stadium (15-16) | 27-38 | Lost 2 |
| » W: Danny Jackson (3-4) L: Bill Mooneyham (1-1) S: Dan Quisenberry (7) | Third | 8 out |
| Wednesday, June 18 |
| » Defeated Royals (33-32), 1-0 | Oakland-Alameda County Stadium (16-16) | 28-38 | |
| » W: Curt Young (5-3) L: Bret Saberhagen (4-7) | Fourth | 7 out |
| Thursday, June 19 |
| » Lost to Rangers (35-30), 3-2 | Arlington Stadium (0-1) | 28-39 | |
| » W: Ed Correa (5-4) L: Eric Plunk (1-3) | Fourth | 8 out |
| Friday, June 20 |
| » Lost to Rangers (36-30), 10-7 | Arlington Stadium (0-2) | 28-40 | Lost 2 |
| » W: Bobby Witt (4-5) L: Chris Codiroli (5-8) S: Greg Harris (13) | Fifth | 9 out |
| Saturday, June 21 |
| » Lost to Rangers (37-30), 3-2 | Arlington Stadium (0-3) | 28-41 | Lost 3 |
| » W: Charlie Hough (6-3) L: Rick Langford (1-7) | Sixth | 10 out |
| Sunday, June 22 |
| » Lost to Rangers (38-30), 5-4 | Arlington Stadium (0-4) | 28-42 | Lost 4 |
| » W: Dale Mohorcic (1-0) L: Jose Rijo (2-6) S: Greg Harris (14) | Sixth | 11 out |
| Monday, June 23 |
| » Lost to Royals (35-34), 6-3 | Royals Stadium (0-1) | 28-43 | Lost 5 |
| » W: Danny Jackson (4-4) L: Curt Young (5-4) S: Steve Farr (4) | Sixth | 11 out |
| Tuesday, June 24 |
| » Defeated Royals (35-35), 8-4 | Royals Stadium (1-1) | 29-43 | |
| » W: Eric Plunk (2-3) L: Bret Saberhagen (4-8) S: Steve Ontiveros (5) | Fifth | 10 out |
| Wednesday, June 25 |
| » Lost to Royals (36-35), 5-4 | Royals Stadium (1-2) | 29-44 | |
| » W: Steve Farr (5-1) L: Bill Mooneyham (1-2) | Sixth | 11 out |
| Thursday, June 26 |
| » Lost to Royals (37-35), 9-2 | Royals Stadium (1-3) | 29-45 | Lost 2 |
| » Manager: Jeff Newman |
| » W: Charlie Leibrandt (8-5) L: Rick Langford (1-8) | Sixth | 11½ out |
| Friday, June 27 |
| » Defeated White Sox (30-41), 8-6 | Oakland-Alameda County Stadium (17-16) | 30-45 | |
| » W: Bill Mooneyham (2-2) L: Gene Nelson (4-4) S: Steve Ontiveros (6) | Sixth | 10½ out |
| Saturday, June 28 |
| » Lost to White Sox (31-41), 4-1 | Oakland-Alameda County Stadium (17-17) | 30-46 | |
| » W: Richard Dotson (6-7) L: Curt Young (5-5) S: Bob James (11) | Sixth | 11½ out |
| Sunday, June 29 |
| » Lost to White Sox (32-41), 6-5 | Oakland-Alameda County Stadium (17-18) | 30-47 | Lost 2 |
| » W: Bob James (3-4) L: Doug Bair (0-1) | Seventh | 11½ out |
| Monday, June 30 |
| » Lost to Indians (38-35), 8-3 | Oakland-Alameda County Stadium (17-19) | 30-48 | Lost 3 |
| » W: Tom Candiotti (6-6) L: Jose Rijo (2-7) | Seventh | 11½ out |
| Tuesday, July 1 |
| » Lost to Indians (39-35), 9-0 | Oakland-Alameda County Stadium (17-20) | 30-49 | Lost 4 |
| » W: John Butcher (1-5) L: Rick Langford (1-9) | Seventh | 12 out |
| Wednesday, July 2 |
| » Lost to Indians (40-35), 7-3 | Oakland-Alameda County Stadium (17-21) | 30-50 | Lost 5 |
| » W: Dickie Noles (2-1) L: Bill Mooneyham (2-3) S: Scott Bailes (7) | Seventh | 13 out |
| Friday, July 4 |
| » Lost to Brewers (39-38), 5-4 | County Stadium (1-3) | 30-51 | Lost 6 |
| » W: Dan Plesac (5-5) L: Doug Bair (0-2) | Seventh | 14 out |
| Former Athletic Oscar Roettger dies in St.Louis, MO at the age of 87. |
| Saturday, July 5 |
| » Lost to Brewers (40-38), 2-1 | County Stadium (1-4) | 30-52 | Lost 7 |
| » W: Danny Darwin (5-4) L: Eric Plunk (2-4) | Seventh | 15 out |
| Sunday, July 6 |
| » Defeated Brewers (40-39), 6-3 | County Stadium (2-4) | 31-52 | |
| » W: Jose Rijo (3-7) L: Tim Leary (6-8) S: Steve Ontiveros (7) | Seventh | 14 out |
| Monday, July 7 |
| » Defeated Red Sox (52-29), 6-4 | Fenway Park (2-2) | 32-52 | Won 2 |
| » Manager: Tony LaRussa |
| » W: Dave Stewart (1-0) L: Roger Clemens (14-2) S: Doug Bair (2) | Seventh | 13½ out |
| Tuesday, July 8 |
| » Lost to Red Sox (53-29), 8-7 | Fenway Park (2-3) | 32-53 | |
| » W: Oil Can Boyd (11-6) L: Rick Langford (1-10) S: Steve Crawford (3) | Seventh | 14½ out |
| Wednesday, July 9 |
| » Lost to Red Sox (54-29), 7-6 | Fenway Park (2-4) | 32-54 | Lost 2 |
| » W: Jeff Sellers (3-3) L: Curt Young (5-6) S: Joe Sambito (9) | Seventh | 15½ out |
| Thursday, July 10 |
| » Lost to Blue Jays (46-41), 8-4 | Exhibition Stadium (1-2) | 32-55 | Lost 3 |
| » W: Jim Clancy (9-5) L: Eric Plunk (2-5) | Seventh | 15½ out |
| Friday, July 11 |
| » Lost to Blue Jays (47-41), 6-5 | Exhibition Stadium (1-3) | 32-56 | Lost 4 |
| » W: Mark Eichhorn (7-3) L: Jose Rijo (3-8) S: Tom Henke (14) | Seventh | 16½ out |
| Saturday, July 12 |
| » Defeated Blue Jays (47-42), 5-3 | Exhibition Stadium (2-3) | 33-56 | |
| » W: Dave Stewart (2-0) L: Jimmy Key (8-6) S: Steve Ontiveros (8) | Seventh | 15½ out |
| Sunday, July 13 |
| » Defeated Blue Jays (47-43), 10-5 | Exhibition Stadium (3-3) | 34-56 | Won 2 |
| » W: Curt Young (6-6) L: Bill Caudill (2-1) S: Dave Leiper (1) | Seventh | 15½ out |
| Friday, July 18 |
| » Defeated Brewers (41-46), 6-1 | Oakland-Alameda County Stadium (18-21) | 35-56 | Won 3 |
| » W: Joaquin Andujar (5-2) L: Juan Nieves (8-4) S: Steve Ontiveros (9) | Seventh | 14 out |
| » Major-league debuts: Glenn Braggs (Brewers) |
| Saturday, July 19 |
| » Defeated Brewers (41-47), 3-2 | Oakland-Alameda County Stadium (19-21) | 36-56 | Won 4 |
| » W: Bill Mooneyham (3-3) L: Mark Clear (2-4) S: Doug Bair (3) | Seventh | 14 out |
| Sunday, July 20 |
| » Lost to Brewers (42-47), 7-2 | Oakland-Alameda County Stadium (19-22) | 36-57 | |
| » W: Teddy Higuera (11-7) L: Eric Plunk (2-6) | Seventh | 13½ out |
| » Defeated Brewers (42-48), 4-2 | Oakland-Alameda County Stadium (20-22) | 37-57 | |
| » W: Jose Rijo (4-8) L: Tim Leary (6-10) | Seventh | 13½ out |
| Monday, July 21 |
| » Defeated Red Sox (57-35), 5-2 | Oakland-Alameda County Stadium (21-22) | 38-57 | Won 2 |
| » W: Curt Young (7-6) L: Bruce Hurst (5-4) | Seventh | 12½ out |
| Tuesday, July 22 |
| » Defeated Red Sox (57-36), 4-2 | Oakland-Alameda County Stadium (22-22) | 39-57 | Won 3 |
| » W: Joaquin Andujar (6-2) L: Tom Seaver (4-8) S: Steve Ontiveros (10) | Seventh | 11½ out |
| Wednesday, July 23 |
| » Defeated Red Sox (57-37), 9-2 | Oakland-Alameda County Stadium (23-22) | 40-57 | Won 4 |
| » W: Dave Stewart (3-0) L: Al Nipper (4-7) | Sixth | 11½ out |
| Friday, July 25 |
| » Defeated Blue Jays (52-46), 6-5 | Oakland-Alameda County Stadium (24-22) | 41-57 | Won 5 |
| » W: Doug Bair (1-2) L: Bill Caudill (2-3) | Sixth | 10½ out |
| Saturday, July 26 |
| » Defeated Blue Jays (52-47), 2-0 | Oakland-Alameda County Stadium (25-22) | 42-57 | Won 6 |
| » W: Eric Plunk (3-6) L: John Cerutti (5-3) S: Joaquin Andujar (1) | Sixth | 10½ out |
| Sunday, July 27 |
| » Defeated Blue Jays (52-48), 1-0 | Oakland-Alameda County Stadium (26-22) | 43-57 | Won 7 |
| » W: Dave Leiper (1-1) L: Stan Clarke (0-1) | Sixth | 10½ out |
| Monday, July 28 |
| » Lost to Angels (53-45), 6-3 | Oakland-Alameda County Stadium (26-23) | 43-58 | |
| » W: Kirk McCaskill (12-6) L: Joaquin Andujar (6-3) S: Donnie Moore (11) | Sixth | 11½ out |
| Tuesday, July 29 |
| » Defeated Angels (53-46), 4-2 | Oakland-Alameda County Stadium (27-23) | 44-58 | |
| » W: Dave Stewart (4-0) L: Ray Chadwick (0-1) S: Jay Howell (6) | Fifth | 10½ out |
| Wednesday, July 30 |
| » Lost to Angels (54-46), 6-2 | Oakland-Alameda County Stadium (27-24) | 44-59 | |
| » W: John Candelaria (4-1) L: Dave Leiper (1-2) S: Donnie Moore (12) | Sixth | 11½ out |
| Thursday, July 31 |
| » Lost to Angels (55-46), 8-5 | Oakland-Alameda County Stadium (27-25) | 44-60 | Lost 2 |
| » W: Mike Witt (11-7) L: Eric Plunk (3-7) | Seventh | 12½ out |
| Friday, August 1 |
| » Lost to Twins (44-58), 10-1 | Hubert H. Humphrey Metrodome (2-2) | 44-61 | Lost 3 |
| » W: Bert Blyleven (10-10) L: Curt Young (7-7) | Seventh | 13½ out |
| » Major-league debuts: Darrel Akerfelds (Athletics) |
| Saturday, August 2 |
| » Lost to Twins (45-58), 8-0 | Hubert H. Humphrey Metrodome (2-3) | 44-62 | Lost 4 |
| » W: Mike Smithson (9-9) L: Joaquin Andujar (6-4) | Seventh | 13½ out |
| Sunday, August 3 |
| » Defeated Twins (45-59), 5-4 | Hubert H. Humphrey Metrodome (3-3) | 45-62 | |
| » W: Doug Bair (2-2) L: Keith Atherton (5-4) S: Jay Howell (7) | Seventh | 12½ out |
| Monday, August 4 |
| » Lost to Mariners (48-59), 9-8 | Kingdome (3-1) | 45-63 | |
| » W: Karl Best (2-2) L: Bill Mooneyham (3-4) S: Mike Moore (1) | Seventh | 12½ out |
| Tuesday, August 5 |
| » Defeated Mariners (48-60), 10-4 | Kingdome (4-1) | 46-63 | |
| » W: Curt Young (8-7) L: Jim Beattie (0-6) | Seventh | 12½ out |
| Wednesday, August 6 |
| » Defeated Mariners (48-61), 7-5 | Kingdome (5-1) | 47-63 | Won 2 |
| » W: Jay Howell (1-4) L: Matt Young (7-5) | Seventh | 11½ out |
| Friday, August 8 |
| » Defeated Twins (47-61), 5-2 | Oakland-Alameda County Stadium (28-25) | 48-63 | Won 3 |
| » W: Joaquin Andujar (7-4) L: Mike Smithson (9-10) S: Doug Bair (4) | Sixth | 12 out |
| Saturday, August 9 |
| » Lost to Twins (48-61), 9-2 | Oakland-Alameda County Stadium (28-26) | 48-64 | |
| » W: Frank Viola (12-8) L: Dave Stewart (4-1) | Sixth | 13 out |
| Sunday, August 10 |
| » Defeated Twins (48-62), 6-2 | Oakland-Alameda County Stadium (29-26) | 49-64 | |
| » W: Curt Young (9-7) L: Neal Heaton (4-11) S: Jay Howell (8) | Fifth | 12½ out |
| » Defeated Twins (48-63), 6-5 | Oakland-Alameda County Stadium (30-26) | 50-64 | Won 2 |
| » W: Jose Rijo (5-8) L: Keith Atherton (5-5) S: Jay Howell (9) | Fifth | 12½ out |
| Monday, August 11 |
| » Lost to Mariners (49-65), 6-4 | Oakland-Alameda County Stadium (30-27) | 50-65 | |
| » W: Pete Ladd (7-3) L: Doug Bair (2-3) | Sixth | 12½ out |
| Tuesday, August 12 |
| » Defeated Mariners (49-66), 3-2 | Oakland-Alameda County Stadium (31-27) | 51-65 | |
| » W: Jay Howell (2-4) L: Pete Ladd (7-4) | Fifth | 12½ out |
| Wednesday, August 13 |
| » Defeated Mariners (49-67), 4-1 | Oakland-Alameda County Stadium (32-27) | 52-65 | Won 2 |
| » W: Dave Stewart (5-1) L: Mike Morgan (8-12) S: Jay Howell (10) | Fifth | 11½ out |
| Friday, August 15 |
| » Lost to Angels (63-52), 6-4 | Anaheim Stadium (1-3) | 52-66 | |
| » W: John Candelaria (6-1) L: Jose Rijo (5-9) S: Donnie Moore (14) | Fourth | 12½ out |
| Saturday, August 16 |
| » Lost to Angels (64-52), 5-2 | Anaheim Stadium (1-4) | 52-67 | Lost 2 |
| » W: Mike Witt (14-7) L: Curt Young (9-8) | Fifth | 13½ out |
| Sunday, August 17 |
| » Lost to Angels (65-52), 7-3 | Anaheim Stadium (1-5) | 52-68 | Lost 3 |
| » W: Don Sutton (11-9) L: Joaquin Andujar (7-5) S: Gary Lucas (1) | Fifth | 14½ out |
| Tuesday, August 19 |
| » Defeated Orioles (62-57), 4-1 | Memorial Stadium (2-2) | 53-68 | |
| » W: Dave Stewart (6-1) L: Storm Davis (9-10) S: Jay Howell (11) | Fifth | 14 out |
| Friday, August 22 |
| » Lost to Yankees (67-55), 3-2 | Yankee Stadium (1-3) | 53-69 | |
| » W: Dennis Rasmussen (13-4) L: Joaquin Andujar (7-6) S: Dave Righetti (30) | Fifth | 14 out |
| » Major-league debuts: Mark McGwire (Athletics) |
| Saturday, August 23 |
| » Defeated Yankees (67-56), 2-1 | Yankee Stadium (2-3) | 54-69 | |
| » W: Curt Young (10-8) L: Dave Righetti (7-7) S: Jay Howell (12) | Fourth | 13 out |
| Sunday, August 24 |
| » Defeated Yankees (67-57), 11-4 | Yankee Stadium (3-3) | 55-69 | Won 2 |
| » W: Dave Stewart (7-1) L: Rod Scurry (1-2) | Fourth | 13 out |
| Monday, August 25 |
| » Defeated Tigers (67-60), 8-4 | Tiger Stadium (2-3) | 56-69 | Won 3 |
| » W: Jose Rijo (6-9) L: Walt Terrell (11-10) | Fourth | 13 out |
| Tuesday, August 26 |
| » Lost to Tigers (68-60), 8-7 | Tiger Stadium (2-4) | 56-70 | |
| » W: Mark Thurmond (7-8) L: Dave Von Ohlen (0-1) S: Guillermo Hernandez (21) | Fourth | 14 out |
| Thursday, August 28 |
| » Defeated Orioles (64-61), 5-4 | Oakland-Alameda County Stadium (33-27) | 57-70 | |
| » W: Dave Leiper (2-2) L: Don Aase (5-5) | Fourth | 13½ out |
| » Defeated Orioles (64-62), 8-7 | Oakland-Alameda County Stadium (34-27) | 58-70 | Won 2 |
| » W: Bill Mooneyham (4-4) L: Don Aase (5-6) | Fourth | 13½ out |
| Friday, August 29 |
| » Defeated Orioles (64-63), 4-3 | Oakland-Alameda County Stadium (35-27) | 59-70 | Won 3 |
| » W: Eric Plunk (4-7) L: Storm Davis (9-12) S: Jay Howell (13) | Third | 13 out |
| » Defeated Orioles (64-64), 4-0 | Oakland-Alameda County Stadium (36-27) | 60-70 | Won 4 |
| » W: Dave Stewart (8-1) L: John Habyan (0-1) | Third | 13 out |
| Saturday, August 30 |
| » Lost to Orioles (65-64), 5-4 | Oakland-Alameda County Stadium (36-28) | 60-71 | |
| » W: Odell Jones (2-1) L: Jose Rijo (6-10) | Third | 14 out |
| Sunday, August 31 |
| » Defeated Orioles (65-65), 7-0 | Oakland-Alameda County Stadium (37-28) | 61-71 | |
| » W: Joaquin Andujar (8-6) L: Mike Boddicker (14-9) | Fourth | 14 out |
| Monday, September 1 |
| » Defeated Yankees (70-62), 9-8 | Oakland-Alameda County Stadium (38-28) | 62-71 | Won 2 |
| » W: Bill Krueger (1-1) L: Mike Armstrong (0-1) S: Dave Von Ohlen (1) | Third | 13 out |
| Tuesday, September 2 |
| » Lost to Yankees (71-62), 9-8 | Oakland-Alameda County Stadium (38-29) | 62-72 | |
| » W: Brian Fisher (8-5) L: Jay Howell (2-5) S: Dave Righetti (34) | Third | 14 out |
| Wednesday, September 3 |
| » Defeated Yankees (71-63), 5-3 | Oakland-Alameda County Stadium (39-29) | 63-72 | |
| » W: Dave Stewart (9-1) L: Tim Stoddard (4-4) | Third | 14 out |
| Friday, September 5 |
| » Lost to Tigers (71-65), 9-4 | Oakland-Alameda County Stadium (39-30) | 63-73 | |
| » W: Chuck Cary (1-2) L: Dave Von Ohlen (0-2) S: Mark Thurmond (1) | Third | 14 out |
| Saturday, September 6 |
| » Defeated Tigers (71-66), 5-4 | Oakland-Alameda County Stadium (40-30) | 64-73 | |
| » W: Joaquin Andujar (9-6) L: Bill Campbell (3-6) | Third | 14 out |
| Sunday, September 7 |
| » Defeated Tigers (71-67), 8-4 | Oakland-Alameda County Stadium (41-30) | 65-73 | Won 2 |
| » W: Curt Young (11-8) L: Dan Petry (4-8) S: Bill Mooneyham (2) | Third | 14 out |
| Tuesday, September 9 |
| » Lost to White Sox (61-76), 4-1 | Comiskey Park I (0-5) | 65-74 | |
| » W: Joe Cowley (9-9) L: Dave Stewart (9-2) S: Bobby Thigpen (6) | Third | 15 out |
| Wednesday, September 10 |
| » Defeated White Sox (61-77), 6-2 | Comiskey Park I (1-5) | 66-74 | |
| » W: Jose Rijo (7-10) L: Pete Filson (0-1) | Third | 15 out |
| Thursday, September 11 |
| » Defeated White Sox (61-78), 2-1 | Comiskey Park I (2-5) | 67-74 | Won 2 |
| » W: Joaquin Andujar (10-6) L: Richard Dotson (10-14) | Third | 14½ out |
| Friday, September 12 |
| » Lost to Indians (70-71), 9-3 | Cleveland Stadium (0-4) | 67-75 | |
| » W: Greg Swindell (2-1) L: Bill Krueger (1-2) | Third | 14½ out |
| » Major-league debuts: Terry Steinbach (Athletics) |
| Saturday, September 13 |
| » Lost to Indians (71-71), 8-6 | Cleveland Stadium (0-5) | 67-76 | Lost 2 |
| » W: Bryan Oelkers (3-3) L: Bill Mooneyham (4-5) S: Frank Wills (3) | Fourth | 15½ out |
| Sunday, September 14 |
| » Lost to Indians (72-71), 5-2 | Cleveland Stadium (0-6) | 67-77 | Lost 3 |
| » W: Ken Schrom (13-7) L: Jose Rijo (7-11) S: Doug Jones (1) | Fourth | 15½ out |
| Monday, September 15 |
| » Lost to Rangers (74-70), 6-2 | Oakland-Alameda County Stadium (41-31) | 67-78 | Lost 4 |
| » W: Charlie Hough (13-10) L: Dave Stewart (9-3) S: Dale Mohorcic (7) | Fourth | 16½ out |
| Tuesday, September 16 |
| » Lost to Rangers (75-70), 10-6 | Oakland-Alameda County Stadium (41-32) | 67-79 | Lost 5 |
| » W: Ron Meridith (1-0) L: Dave Von Ohlen (0-3) S: Greg Harris (17) | Fourth | 17½ out |
| Wednesday, September 17 |
| » Lost to Rangers (76-70), 4-0 | Oakland-Alameda County Stadium (41-33) | 67-80 | Lost 6 |
| » W: Ed Correa (10-13) L: Rick Rodriguez (0-1) S: Mitch Williams (8) | Fourth | 18½ out |
| Friday, September 19 |
| » Defeated Indians (74-73), 5-1 | Oakland-Alameda County Stadium (42-33) | 68-80 | |
| » W: Curt Young (12-8) L: Phil Niekro (11-11) | Fourth | 18 out |
| Saturday, September 20 |
| » Lost to Indians (75-73), 6-5 | Oakland-Alameda County Stadium (42-34) | 68-81 | |
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