| Tuesday, February 14 |
| Former Athletic Loren Babe dies in Omaha, NE at the age of 57. |
| Monday, April 2 |
| » Major-league debuts: Ross Jones (Mets) |
| Tuesday, April 3 |
| » Defeated Brewers (0-1), 6-5 | Oakland-Alameda County Stadium (1-0) | 1-0 | |
| » W: Tom Burgmeier (1-0) L: Rollie Fingers (0-1) | First | -- |
| Wednesday, April 4 |
| » Defeated Brewers (0-2), 4-3 | Oakland-Alameda County Stadium (2-0) | 2-0 | Won 2 |
| » W: Ray Burris (1-0) L: Mike Caldwell (0-1) S: Bill Caudill (1) | First | -- |
| Thursday, April 5 |
| » Major-league debuts: Jeff Reed (Twins) |
| Friday, April 6 |
| » Defeated Red Sox (2-2), 3-1 | Oakland-Alameda County Stadium (3-0) | 3-0 | Won 3 |
| » W: Lary Sorensen (1-0) L: Oil Can Boyd (0-1) S: Bill Caudill (2) | First | -- |
| Saturday, April 7 |
| » Lost to Red Sox (3-2), 3-0 | Oakland-Alameda County Stadium (3-1) | 3-1 | |
| » W: Bruce Hurst (1-1) L: Mike Warren (0-1) | First | -- |
| Sunday, April 8 |
| » Defeated Red Sox (3-3), 14-2 | Oakland-Alameda County Stadium (4-1) | 4-1 | |
| » W: Steve McCatty (1-0) L: Mike Brown (0-1) S: Jeff Bettendorf (1) | First | -- |
| » Major-league debuts: Jeff Bettendorf (Athletics) |
| Monday, April 9 |
| » Defeated Blue Jays (3-3), 4-3 | Oakland-Alameda County Stadium (5-1) | 5-1 | Won 2 |
| » W: Bill Caudill (1-0) L: Dennis Lamp (0-2) | First | -- |
| Tuesday, April 10 |
| » Lost to Blue Jays (4-3), 3-0 | Oakland-Alameda County Stadium (5-2) | 5-2 | |
| » W: Luis Leal (2-0) L: Lary Sorensen (1-1) S: Roy Lee Jackson (1) | Second | ½ out |
| Thursday, April 12 |
| » Lost to Angels (4-5), 3-2 | Oakland-Alameda County Stadium (5-3) | 5-3 | Lost 2 |
| » W: Geoff Zahn (1-0) L: Mike Warren (0-2) S: Luis Sanchez (1) | Second | 1½ out |
| Friday, April 13 |
| » Defeated Angels (4-6), 2-1 | Oakland-Alameda County Stadium (6-3) | 6-3 | |
| » W: Bill Caudill (2-0) L: Tommy John (0-1) | Second | ½ out |
| Saturday, April 14 |
| » Defeated Angels (4-7), 4-3 | Oakland-Alameda County Stadium (7-3) | 7-3 | Won 2 |
| » W: Bill Caudill (3-0) L: Curt Kaufman (0-2) | First | -- |
| Sunday, April 15 |
| » Lost to Angels (5-7), 12-8 | Oakland-Alameda County Stadium (7-4) | 7-4 | |
| » W: Mike Witt (1-1) L: Lary Sorensen (1-2) S: Doug Corbett (1) | Second | ½ out |
| Monday, April 16 |
| » Defeated Mariners (7-4), 9-6 | Kingdome (1-0) | 8-4 | |
| » W: Mike Warren (1-2) L: Matt Young (2-1) S: Bill Caudill (3) | First | -- |
| Tuesday, April 17 |
| » Defeated Mariners (7-5), 6-2 | Kingdome (2-0) | 9-4 | Won 2 |
| » W: Steve McCatty (2-0) L: Mike Moore (1-1) S: Chris Codiroli (1) | First | -- |
| Wednesday, April 18 |
| » Lost to Mariners (8-5), 5-4 | Kingdome (2-1) | 9-5 | |
| » W: Paul Mirabella (1-0) L: Keith Atherton (0-1) | First | -- |
| Friday, April 20 |
| » Lost to Red Sox (4-9), 3-1 | Fenway Park (0-1) | 9-6 | Lost 2 |
| » W: Bruce Hurst (2-2) L: Tim Conroy (0-1) S: Bob Stanley (1) | Second | ½ out |
| Saturday, April 21 |
| » Defeated Red Sox (4-10), 5-2 | Fenway Park (1-1) | 10-6 | |
| » W: Mike Warren (2-2) L: Mike Brown (0-2) S: Tom Burgmeier (1) | First | -- |
| Sunday, April 22 |
| » Lost to Red Sox (5-10), 12-8 | Fenway Park (1-2) | 10-7 | |
| » W: Dennis Eckersley (1-2) L: Steve McCatty (2-1) S: Bob Stanley (2) | Second | 1 out |
| Tuesday, April 24 |
| » Lost to Brewers (6-9), 3-2 | County Stadium (0-1) | 10-8 | Lost 2 |
| » W: Pete Ladd (1-0) L: Lary Sorensen (1-3) | Second | ½ out |
| Wednesday, April 25 |
| » Lost to Blue Jays (11-8), 11-0 | Exhibition Stadium (0-1) | 10-9 | Lost 3 |
| » W: Luis Leal (3-0) L: Tim Conroy (0-2) | Third | 1 out |
| Thursday, April 26 |
| » Defeated Blue Jays (11-9), 7-4 | Exhibition Stadium (1-1) | 11-9 | |
| » W: Mike Warren (3-2) L: Jim Gott (0-2) S: Tom Burgmeier (2) | Second | ½ out |
| Friday, April 27 |
| » Defeated Twins (10-11), 5-3 | Oakland-Alameda County Stadium (8-4) | 12-9 | Won 2 |
| » W: Steve McCatty (3-1) L: Larry Pashnick (0-1) S: Bill Caudill (4) | First | -- |
| Saturday, April 28 |
| » Defeated Twins (10-12), 7-0 | Oakland-Alameda County Stadium (9-4) | 13-9 | Won 3 |
| » W: Ray Burris (2-0) L: Albert Williams (1-3) | First | -- |
| Sunday, April 29 |
| » Lost to Twins (11-12), 5-2 | Oakland-Alameda County Stadium (9-5) | 13-10 | |
| » W: Frank Viola (1-3) L: Lary Sorensen (1-4) S: Ron Davis (3) | First | -- |
| » Defeated Twins (11-13), 3-0 | Oakland-Alameda County Stadium (10-5) | 14-10 | |
| » W: Chris Codiroli (1-0) L: Mike Smithson (3-2) S: Bill Caudill (5) | First | -- |
| Tuesday, May 1 |
| » Lost to Angels (16-11), 4-1 | Anaheim Stadium (0-1) | 14-11 | |
| » W: Tommy John (2-2) L: Mike Warren (3-3) S: Luis Sanchez (3) | Second | 1 out |
| Wednesday, May 2 |
| » Defeated Angels (16-12), 7-6 | Anaheim Stadium (1-1) | 15-11 | |
| » W: Keith Atherton (1-1) L: Ron Romanick (3-2) S: Bill Caudill (6) | First | -- |
| Friday, May 4 |
| » Lost to Twins (13-15), 3-1 | Hubert H. Humphrey Metrodome (0-1) | 15-12 | |
| » W: Frank Viola (2-3) L: Ray Burris (2-1) S: Ron Davis (5) | Second | 1 out |
| Saturday, May 5 |
| » Lost to Twins (14-15), 5-4 | Hubert H. Humphrey Metrodome (0-2) | 15-13 | Lost 2 |
| » W: Larry Pashnick (2-1) L: Chris Codiroli (1-1) | Second | 2 out |
| Sunday, May 6 |
| » Lost to Twins (15-15), 4-3 | Hubert H. Humphrey Metrodome (0-3) | 15-14 | Lost 3 |
| » W: Ed Hodge (1-0) L: Mike Warren (3-4) S: Ron Davis (6) | Second | 2 out |
| Monday, May 7 |
| » Defeated Mariners (15-15), 6-5 | Oakland-Alameda County Stadium (11-5) | 16-14 | |
| » W: Bill Caudill (4-0) L: Roy Thomas (2-1) | Second | 1 out |
| Tuesday, May 8 |
| » Defeated Mariners (15-16), 3-2 | Oakland-Alameda County Stadium (12-5) | 17-14 | Won 2 |
| » W: Bill Caudill (5-0) L: Dave Beard (2-1) | First | -- |
| Wednesday, May 9 |
| » Lost to Mariners (16-16), 4-1 | Oakland-Alameda County Stadium (12-6) | 17-15 | |
| » W: Mike Stanton (2-1) L: Keith Atherton (1-2) | Second | ½ out |
| Friday, May 11 |
| » Lost to Orioles (17-15), 4-3 | Memorial Stadium (0-1) | 17-16 | Lost 2 |
| » W: Mike Boddicker (3-3) L: Mike Warren (3-5) S: Tippy Martinez (5) | Second | ½ out |
| Saturday, May 12 |
| » Defeated Orioles (17-16), 12-2 | Memorial Stadium (1-1) | 18-16 | |
| » W: Bill Krueger (1-0) L: Dennis Martinez (1-2) | Second | ½ out |
| Sunday, May 13 |
| » Lost to Orioles (18-16), 5-1 | Memorial Stadium (1-2) | 18-17 | |
| » W: Storm Davis (3-0) L: Steve McCatty (3-2) | Second | ½ out |
| Monday, May 14 |
| » Lost to Yankees (14-19), 3-1 | Yankee Stadium (0-1) | 18-18 | Lost 2 |
| » W: Phil Niekro (6-1) L: Lary Sorensen (1-5) S: Dave Righetti (3) | Fourth | 1 out |
| Tuesday, May 15 |
| » Lost to Yankees (15-19), 9-6 | Yankee Stadium (0-2) | 18-19 | Lost 3 |
| » W: Ron Guidry (2-2) L: Ray Burris (2-2) S: Dave Righetti (4) | Fourth | 1½ out |
| Wednesday, May 16 |
| » Lost to Yankees (16-19), 7-6 | Yankee Stadium (0-3) | 18-20 | Lost 4 |
| » W: Clay Christiansen (1-1) L: Bill Caudill (5-1) | Fourth | 1½ out |
| Friday, May 18 |
| » Lost to Tigers (30-5), 8-4 | Tiger Stadium (0-1) | 18-21 | Lost 5 |
| » W: Dan Petry (6-1) L: Bill Krueger (1-1) | Fourth | 2½ out |
| Saturday, May 19 |
| » Lost to Tigers (31-5), 5-4 | Tiger Stadium (0-2) | 18-22 | Lost 6 |
| » W: Jack Morris (8-1) L: Steve McCatty (3-3) S: Aurelio Lopez (5) | Fifth | 3½ out |
| Sunday, May 20 |
| » Lost to Tigers (32-5), 4-3 | Tiger Stadium (0-3) | 18-23 | Lost 7 |
| » W: Milt Wilcox (6-0) L: Lary Sorensen (1-6) S: Willie Hernandez (6) | Fifth | 4½ out |
| Tuesday, May 22 |
| » Defeated Orioles (22-19), 6-4 | Oakland-Alameda County Stadium (13-6) | 19-23 | |
| » W: Ray Burris (3-2) L: Mike Boddicker (4-4) S: Bill Caudill (7) | Fourth | 3½ out |
| Wednesday, May 23 |
| » Lost to Orioles (23-19), 9-5 | Oakland-Alameda County Stadium (13-7) | 19-24 | |
| » W: Bill Swaggerty (1-0) L: Mike Warren (3-6) S: Tippy Martinez (7) | Fourth | 3½ out |
| Thursday, May 24 |
| » Defeated Orioles (23-20), 3-2 | Oakland-Alameda County Stadium (14-7) | 20-24 | |
| » W: Bill Krueger (2-1) L: Storm Davis (4-1) S: Bill Caudill (8) | Fourth | 2½ out |
| Friday, May 25 |
| » Defeated Yankees (18-24), 10-7 | Oakland-Alameda County Stadium (15-7) | 21-24 | Won 2 |
| » Manager: Jackie Moore |
| » W: Keith Atherton (2-2) L: Ron Guidry (2-4) S: Bill Caudill (9) | Third | 2½ out |
| Saturday, May 26 |
| » Lost to Yankees (19-24), 8-4 | Oakland-Alameda County Stadium (15-8) | 21-25 | |
| » W: Ray Fontenot (1-4) L: Lary Sorensen (1-7) | Fifth | 2½ out |
| Sunday, May 27 |
| » Defeated Yankees (19-25), 7-1 | Oakland-Alameda County Stadium (16-8) | 22-25 | |
| » W: Ray Burris (4-2) L: Jose Rijo (1-5) | Third | 1½ out |
| Monday, May 28 |
| » Lost to Tigers (36-8), 6-2 | Oakland-Alameda County Stadium (16-9) | 22-26 | |
| » W: Jack Morris (10-1) L: Chris Codiroli (1-2) | Fourth | 2½ out |
| Tuesday, May 29 |
| » Defeated Tigers (36-9), 8-5 | Oakland-Alameda County Stadium (17-9) | 23-26 | |
| » W: Bill Krueger (3-1) L: Milt Wilcox (6-2) S: Bill Caudill (10) | Third | 2½ out |
| Wednesday, May 30 |
| » Lost to Tigers (37-9), 2-1 | Oakland-Alameda County Stadium (17-10) | 23-27 | |
| » W: Willie Hernandez (2-0) L: Steve McCatty (3-4) S: Aurelio Lopez (7) | Third | 2½ out |
| Friday, June 1 |
| » Lost to White Sox (23-26), 6-4 | Comiskey Park I (0-1) | 23-28 | Lost 2 |
| » W: Juan Agosto (1-0) L: Lary Sorensen (1-8) | Fifth | 3½ out |
| Saturday, June 2 |
| » Defeated White Sox (23-27), 6-3 | Comiskey Park I (1-1) | 24-28 | |
| » W: Ray Burris (5-2) L: Richard Dotson (7-3) S: Bill Caudill (11) | Fourth | 3½ out |
| Sunday, June 3 |
| » Lost to White Sox (24-27), 3-2 | Comiskey Park I (1-2) | 24-29 | |
| » W: Bert Roberge (1-0) L: Jeff Jones (0-1) | Sixth | 4½ out |
| Monday, June 4 |
| » Defeated Indians (17-32), 7-3 | Cleveland Stadium (1-0) | 25-29 | |
| » W: Bill Krueger (4-1) L: Neal Heaton (3-5) S: Bill Caudill (12) | Fifth | 3½ out |
| Tuesday, June 5 |
| » Defeated Indians (17-33), 4-2 | Cleveland Stadium (2-0) | 26-29 | Won 2 |
| » W: Keith Atherton (3-2) L: Mike Jeffcoat (1-1) | Third | 3½ out |
| Wednesday, June 6 |
| » Lost to Indians (18-33), 7-6 | Cleveland Stadium (2-1) | 26-30 | |
| » W: Mike Jeffcoat (2-1) L: Jeff Jones (0-2) S: Ernie Camacho (7) | Sixth | 3½ out |
| Friday, June 8 |
| » Lost to Rangers (22-35), 8-4 | Arlington Stadium (0-1) | 26-31 | Lost 2 |
| » W: Frank Tanana (6-6) L: Ray Burris (5-3) | Sixth | 3½ out |
| Saturday, June 9 |
| » Lost to Rangers (23-35), 4-3 | Arlington Stadium (0-2) | 26-32 | Lost 3 |
| » W: Dave Schmidt (1-3) L: Keith Atherton (3-3) | Sixth | 4½ out |
| Sunday, June 10 |
| » Lost to Rangers (24-35), 3-1 | Arlington Stadium (0-3) | 26-33 | Lost 4 |
| » W: Charlie Hough (6-6) L: Bill Krueger (4-2) | Sixth | 5½ out |
| Monday, June 11 |
| » Lost to Rangers (25-35), 6-3 | Arlington Stadium (0-4) | 26-34 | Lost 5 |
| » W: Mike Mason (3-4) L: Steve McCatty (3-5) S: Dave Tobik (4) | Sixth | 6 out |
| Tuesday, June 12 |
| » Lost to Indians (22-34), 11-5 | Oakland-Alameda County Stadium (17-11) | 26-35 | Lost 6 |
| » W: Rick Sutcliffe (4-5) L: Tim Conroy (0-3) | Sixth | 7 out |
| Wednesday, June 13 |
| » Defeated Indians (22-35), 3-1 | Oakland-Alameda County Stadium (18-11) | 27-35 | |
| » W: Bill Caudill (6-1) L: Bert Blyleven (4-3) | Sixth | 6 out |
| Thursday, June 14 |
| » Defeated Indians (22-36), 7-6 | Oakland-Alameda County Stadium (19-11) | 28-35 | Won 2 |
| » W: Keith Atherton (4-3) L: Ernie Camacho (1-7) S: Bill Caudill (13) | Sixth | 6 out |
| Friday, June 15 |
| » Defeated White Sox (30-32), 2-1 | Oakland-Alameda County Stadium (20-11) | 29-35 | Won 3 |
| » W: Keith Atherton (5-3) L: La Marr Hoyt (6-6) | Sixth | 6 out |
| Saturday, June 16 |
| » Defeated White Sox (30-33), 6-4 | Oakland-Alameda County Stadium (21-11) | 30-35 | Won 4 |
| » W: Steve McCatty (4-5) L: Floyd Bannister (4-6) S: Bill Caudill (14) | Fifth | 6 out |
| Sunday, June 17 |
| » Lost to White Sox (31-33), 9-4 | Oakland-Alameda County Stadium (21-12) | 30-36 | |
| » W: Tom Seaver (6-4) L: Jeff Jones (0-3) S: Juan Agosto (1) | Fifth | 6 out |
| Monday, June 18 |
| » Defeated Royals (27-35), 10-2 | Oakland-Alameda County Stadium (22-12) | 31-36 | |
| » W: Ray Burris (6-3) L: Larry Gura (7-3) | Fourth | 5 out |
| Tuesday, June 19 |
| » Lost to Royals (28-35), 6-2 | Oakland-Alameda County Stadium (22-13) | 31-37 | |
| » W: Bud Black (7-5) L: Chris Codiroli (1-3) S: Dan Quisenberry (17) | Fourth | 5 out |
| Wednesday, June 20 |
| » Defeated Royals (28-36), 8-1 | Oakland-Alameda County Stadium (23-13) | 32-37 | |
| » W: Bill Krueger (5-2) L: Mark Gubicza (3-7) | Fourth | 4 out |
| Friday, June 22 |
| » Lost to Rangers (32-38), 4-0 | Oakland-Alameda County Stadium (23-14) | 32-38 | |
| » W: Mike Mason (5-4) L: Steve McCatty (4-6) S: Dave Tobik (5) | Fifth | 5 out |
| Saturday, June 23 |
| » Defeated Rangers (32-39), 5-1 | Oakland-Alameda County Stadium (24-14) | 33-38 | |
| » W: Tim Conroy (1-3) L: Danny Darwin (5-4) | Fourth | 4 out |
| Sunday, June 24 |
| » Defeated Rangers (32-40), 4-2 | Oakland-Alameda County Stadium (25-14) | 34-38 | Won 2 |
| » W: Bill Caudill (7-1) L: Dave Tobik (1-5) | Fourth | 3 out |
| Monday, June 25 |
| » Lost to Royals (31-37), 16-0 | Royals Stadium (0-1) | 34-39 | |
| » W: Mark Gubicza (4-7) L: Bill Krueger (5-3) | Fourth | 3 out |
| Tuesday, June 26 |
| » Defeated Royals (31-38), 8-4 | Royals Stadium (1-1) | 35-39 | |
| » W: Lary Sorensen (2-8) L: Paul Splittorff (1-3) S: Bill Caudill (15) | Third | 2½ out |
| » Defeated Royals (31-39), 6-1 | Royals Stadium (2-1) | 36-39 | Won 2 |
| » W: Curt Young (1-0) L: Charlie Leibrandt (2-3) | Third | 2½ out |
| Wednesday, June 27 |
| » Defeated Royals (31-40), 9-5 | Royals Stadium (3-1) | 37-39 | Won 3 |
| » W: Steve McCatty (5-6) L: Larry Gura (8-4) | Third | 2½ out |
| Thursday, June 28 |
| » Lost to Blue Jays (44-30), 9-6 | Exhibition Stadium (1-2) | 37-40 | |
| » W: Jim Gott (4-2) L: Keith Atherton (5-4) | Third | 3½ out |
| Friday, June 29 |
| » Defeated Blue Jays (44-31), 2-1 | Exhibition Stadium (2-2) | 38-40 | |
| » W: Ray Burris (7-3) L: Dave Stieb (8-3) S: Bill Caudill (16) | Third | 2½ out |
| Saturday, June 30 |
| » Lost to Blue Jays (45-31), 6-1 | Exhibition Stadium (2-3) | 38-41 | |
| » W: Doyle Alexander (6-4) L: Bill Krueger (5-4) | Third | 3½ out |
| » Major-league debuts: Mickey Tettleton (Athletics) |
| Sunday, July 1 |
| » Lost to Blue Jays (46-31), 7-6 | Exhibition Stadium (2-4) | 38-42 | Lost 2 |
| » W: Jim Acker (2-4) L: Keith Atherton (5-5) S: Roy Lee Jackson (4) | Fourth | 4½ out |
| Monday, July 2 |
| » Defeated Red Sox (36-42), 9-6 | Fenway Park (2-2) | 39-42 | |
| » W: Bill Caudill (8-1) L: Mark Clear (5-2) S: Lary Sorensen (1) | Fourth | 4½ out |
| Tuesday, July 3 |
| » Lost to Red Sox (37-42), 6-5 | Fenway Park (2-3) | 39-43 | |
| » W: Bob Stanley (4-6) L: Lary Sorensen (2-9) | Fourth | 4½ out |
| Wednesday, July 4 |
| » Lost to Red Sox (38-42), 13-9 | Fenway Park (2-4) | 39-44 | Lost 2 |
| » W: Steve Crawford (3-0) L: Gorman Heimueller (0-1) | Fourth | 4½ out |
| Thursday, July 5 |
| » Lost to Brewers (39-43), 7-5 | County Stadium (0-2) | 39-45 | Lost 3 |
| » W: Jaime Cocanower (7-7) L: Bill Krueger (5-5) S: Rollie Fingers (18) | Fourth | 4½ out |
| Friday, July 6 |
| » Defeated Brewers (39-44), 7-6 | County Stadium (1-2) | 40-45 | |
| » W: Ray Burris (8-3) L: Pete Ladd (3-5) S: Bill Caudill (17) | Fourth | 3 out |
| » Defeated Brewers (39-45), 11-0 | County Stadium (2-2) | 41-45 | Won 2 |
| » W: Curt Young (2-0) L: Mike Caldwell (4-6) | Fourth | 3 out |
| Saturday, July 7 |
| » Defeated Brewers (39-46), 8-2 | County Stadium (3-2) | 42-45 | Won 3 |
| » W: Steve McCatty (6-6) L: Don Sutton (6-8) | Fourth | 3 out |
| Sunday, July 8 |
| » Defeated Brewers (39-47), 4-1 | County Stadium (4-2) | 43-45 | Won 4 |
| » W: Lary Sorensen (3-9) L: Chuck Porter (6-4) S: Bill Caudill (18) | Fourth | 3 out |
| Thursday, July 12 |
| » Defeated Blue Jays (50-35), 7-4 | Oakland-Alameda County Stadium (26-14) | 44-45 | Won 5 |
| » W: Bill Krueger (6-5) L: Dennis Lamp (4-4) S: Bill Caudill (19) | Fourth | 2 out |
| Friday, July 13 |
| » Lost to Blue Jays (51-35), 6-3 | Oakland-Alameda County Stadium (26-15) | 44-46 | |
| » W: Luis Leal (10-2) L: Ray Burris (8-4) S: Roy Lee Jackson (6) | Fourth | 2 out |
| Saturday, July 14 |
| » Lost to Blue Jays (52-35), 2-1 | Oakland-Alameda County Stadium (26-16) | 44-47 | Lost 2 |
| » W: Dave Stieb (10-3) L: Bill Caudill (8-2) | Fourth | 3 out |
| Sunday, July 15 |
| » Lost to Blue Jays (53-35), 6-3 | Oakland-Alameda County Stadium (26-17) | 44-48 | Lost 3 |
| » W: Jim Clancy (7-10) L: Curt Young (2-1) S: Roy Lee Jackson (7) | Fourth | 4 out |
| Monday, July 16 |
| » Lost to Red Sox (44-45), 4-1 | Oakland-Alameda County Stadium (26-18) | 44-49 | Lost 4 |
| » W: Bruce Hurst (9-5) L: Lary Sorensen (3-10) S: Bob Stanley (15) | Fourth | 5 out |
| Tuesday, July 17 |
| » Lost to Red Sox (45-45), 6-1 | Oakland-Alameda County Stadium (26-19) | 44-50 | Lost 5 |
| » W: Bob Ojeda (7-7) L: Bill Krueger (6-6) | Fourth | 6 out |
| Wednesday, July 18 |
| » Defeated Red Sox (45-46), 7-2 | Oakland-Alameda County Stadium (27-19) | 45-50 | |
| » W: Ray Burris (9-4) L: Oil Can Boyd (4-7) | Fourth | 5 out |
| Thursday, July 19 |
| » Defeated Brewers (41-53), 4-1 | Oakland-Alameda County Stadium (28-19) | 46-50 | Won 2 |
| » W: Steve McCatty (7-6) L: Moose Haas (6-7) | Fourth | 4½ out |
| Friday, July 20 |
| » Lost to Brewers (42-53), 9-7 | Oakland-Alameda County Stadium (28-20) | 46-51 | |
| » W: Tom Tellmann (4-2) L: Bill Caudill (8-3) S: Rollie Fingers (21) | Fourth | 4½ out |
| Saturday, July 21 |
| » Lost to Brewers (43-53), 7-4 | Oakland-Alameda County Stadium (28-21) | 46-52 | Lost 2 |
| » W: Rick Waits (2-2) L: Chuck Rainey (5-8) S: Rollie Fingers (22) | Fourth | 4½ out |
| Sunday, July 22 |
| » Defeated Brewers (43-54), 5-4 | Oakland-Alameda County Stadium (29-21) | 47-52 | |
| » W: Bill Krueger (7-6) L: Mike Caldwell (4-7) S: Bill Caudill (20) | Fourth | 3½ out |
| Monday, July 23 |
| » Lost to Twins (48-48), 14-4 | Hubert H. Humphrey Metrodome (0-4) | 47-53 | |
| » W: John Butcher (8-6) L: Ray Burris (9-5) | Third | 4½ out |
| Tuesday, July 24 |
| » Lost to Twins (49-48), 6-4 | Hubert H. Humphrey Metrodome (0-5) | 47-54 | Lost 2 |
| » W: Pete Filson (5-2) L: Steve McCatty (7-7) S: Len Whitehouse (1) | Fifth | 4½ out |
| Wednesday, July 25 |
| » Defeated Twins (49-49), 1-0 | Hubert H. Humphrey Metrodome (1-5) | 48-54 | |
| » W: Curt Young (3-1) L: Ken Schrom (2-5) S: Bill Caudill (21) | Fifth | 4½ out |
| Friday, July 27 |
| » Lost to Mariners (47-56), 12-2 | Kingdome (2-2) | 48-55 | |
| » W: Salome Barojas (6-3) L: Bill Krueger (7-7) | Fifth | 4½ out |
| Saturday, July 28 |
| » Lost to Mariners (48-56), 2-1 | Kingdome (2-3) | 48-56 | Lost 2 |
| » W: Mark Langston (9-8) L: Ray Burris (9-6) S: Ed Vande Berg (5) | Fifth | 5 out |
| Sunday, July 29 |
| » Lost to Mariners (49-56), 4-1 | Kingdome (2-4) | 48-57 | Lost 3 |
| » W: Mike Moore (5-9) L: Steve McCatty (7-8) | Sixth | 6 out |
| Monday, July 30 |
| » Lost to Angels (52-51), 5-4 | Oakland-Alameda County Stadium (29-22) | 48-58 | Lost 4 |
| » W: Doug Corbett (3-1) L: Bill Caudill (8-4) S: Luis Sanchez (10) | Sixth | 7 out |
| Tuesday, July 31 |
| » Lost to Angels (53-51), 7-3 | Oakland-Alameda County Stadium (29-23) | 48-59 | Lost 5 |
| » W: Ron Romanick (10-9) L: Lary Sorensen (3-11) | Sixth | 8 out |
| Wednesday, August 1 |
| » Lost to Angels (54-51), 6-4 | Oakland-Alameda County Stadium (29-24) | 48-60 | Lost 6 |
| » W: Tommy John (6-9) L: Bill Krueger (7-8) | Sixth | 8 out |
| Friday, August 3 |
| » Defeated Mariners (50-59), 5-3 | Oakland-Alameda County Stadium (30-24) | 49-60 | |
| » W: Ray Burris (10-6) L: Mike Moore (5-10) S: Bill Caudill (22) | Fifth | 7 out |
| » Defeated Mariners (50-60), 11-7 | Oakland-Alameda County Stadium (31-24) | 50-60 | Won 2 |
| » W: Chuck Rainey (6-8) L: Mark Langston (9-9) S: Keith Atherton (1) | Fifth | 7 out |
| Saturday, August 4 |
| » Defeated Mariners (50-61), 4-2 | Oakland-Alameda County Stadium (32-24) | 51-60 | Won 3 |
| » W: Curt Young (4-1) L: Jim Beattie (9-12) S: Bill Caudill (23) | Fifth | 6½ out |
| Sunday, August 5 |
| » Defeated Mariners (50-62), 5-4 | Oakland-Alameda County Stadium (33-24) | 52-60 | Won 4 |
| » W: Lary Sorensen (4-11) L: Ed Vande Berg (7-11) S: Bill Caudill (24) | Fifth | 6 out |
| Monday, August 6 |
| » Lost to Twins (57-52), 7-4 | Oakland-Alameda County Stadium (33-25) | 52-61 | |
| » W: Mike Smithson (12-9) L: Bill Krueger (7-9) S: Ron Davis (22) | Fifth | 7 out |
| Tuesday, August 7 |
| » Lost to Twins (58-52), 2-1 | Oakland-Alameda County Stadium (33-26) | 52-62 | Lost 2 |
| » W: Frank Viola (12-10) L: Steve McCatty (7-9) | Fifth | 8 out |
| Wednesday, August 8 |
| » Defeated Twins (58-53), 5-0 | Oakland-Alameda County Stadium (34-26) | 53-62 | |
| » W: Ray Burris (11-6) L: John Butcher (9-7) S: Bill Caudill (25) | Fifth | 7 out |
| Thursday, August 9 |
| » Defeated Angels (58-55), 5-4 | Anaheim Stadium (2-1) | 54-62 | Won 2 |
| » W: Curt Young (5-1) L: Geoff Zahn (10-9) S: Bill Caudill (26) | Fifth | 6 out |
| Friday, August 10 |
| » Defeated Angels (58-56), 7-6 | Anaheim Stadium (3-1) | 55-62 | Won 3 |
| » W: Keith Atherton (6-5) L: Luis Sanchez (7-4) S: Bill Caudill (27) | Fifth | 6 out |
| Saturday, August 11 |
| » Defeated Angels (58-57), 3-2 | Anaheim Stadium (4-1) | 56-62 | Won 4 |
| » W: Tom Burgmeier (2-0) L: Luis Sanchez (7-5) | Fifth | 5 out |
| Sunday, August 12 |
| » Lost to Angels (59-57), 10-9 | Anaheim Stadium (4-2) | 56-63 | |
| » W: Luis Sanchez (8-5) L: Bill Caudill (8-5) | Fifth | 6 out |
| Tuesday, August 14 |
| » Defeated Orioles (62-56), 4-3 | Memorial Stadium (2-2) | 57-63 | |
| » W: Tom Burgmeier (3-0) L: Sammy Stewart (4-2) | Fifth | 6½ out |
| Wednesday, August 15 |
| » Defeated Orioles (62-57), 6-1 | Memorial Stadium (3-2) | 58-63 | Won 2 |
| » W: Curt Young (6-1) L: Dennis Martinez (4-7) | Fourth | 5½ out |
| Thursday, August 16 |
| » Defeated Orioles (62-58), 8-1 | Memorial Stadium (4-2) | 59-63 | Won 3 |
| » W: Lary Sorensen (5-11) L: Storm Davis (12-6) | Fifth | 4½ out |
| Friday, August 17 |
| » Defeated Yankees (62-59), 7-3 | Yankee Stadium (1-3) | 60-63 | Won 4 |
| » W: Bill Krueger (8-9) L: Ray Fontenot (6-7) | Fourth | 4½ out |
| Saturday, August 18 |
| » Lost to Yankees (63-59), 8-0 | Yankee Stadium (1-4) | 60-64 | |
| » W: John Montefusco (1-2) L: Steve McCatty (7-10) S: Mike Armstrong (1) | Fifth | 6 out |
| Sunday, August 19 |
| » Lost to Yankees (64-59), 9-6 | Yankee Stadium (1-5) | 60-65 | Lost 2 |
| » W: Jay Howell (6-4) L: Bill Caudill (8-6) S: Dave Righetti (22) | Fifth | 6 out |
| Monday, August 20 |
| » Lost to Tigers (82-44), 14-1 | Tiger Stadium (0-4) | 60-66 | Lost 3 |
| » W: Jack Morris (16-8) L: Curt Young (6-2) | Fourth | 6½ out |
| Tuesday, August 21 |
| » Lost to Tigers (83-44), 12-6 | Tiger Stadium (0-5) | 60-67 | Lost 4 |
| » W: Milt Wilcox (14-7) L: Lary Sorensen (5-12) | Fourth | 7 out |
| Wednesday, August 22 |
| » Lost to Tigers (84-44), 11-4 | Tiger Stadium (0-6) | 60-68 | Lost 5 |
| » W: Juan Berenguer (7-8) L: Bill Krueger (8-10) | Fourth | 8½ out |
| Friday, August 24 |
| » Lost to Orioles (68-59), 4-2 | Oakland-Alameda County Stadium (34-27) | 60-69 | Lost 6 |
| » W: Mike Boddicker (16-8) L: Steve McCatty (7-11) | Fourth | 8 out |
| Saturday, August 25 |
| » Lost to Orioles (69-59), 4-2 | Oakland-Alameda County Stadium (34-28) | 60-70 | Lost 7 |
| » W: Mike Flanagan (11-11) L: Ray Burris (11-7) S: Sammy Stewart (9) | Fourth | 9 out |
| Sunday, August 26 |
| » Lost to Orioles (70-59), 13-6 | Oakland-Alameda County Stadium (34-29) | 60-71 | Lost 8 |
| » W: Tom Underwood (1-0) L: Curt Young (6-3) S: Sammy Stewart (10) | Fifth | 9 out |
| Monday, August 27 |
| » Lost to Yankees (70-60), 8-7 | Oakland-Alameda County Stadium (34-30) | 60-72 | Lost 9 |
| » W: Dave Righetti (4-4) L: Bill Caudill (8-7) | Fifth | 9 out |
| Tuesday, August 28 |
| » Defeated Yankees (70-61), 4-3 | Oakland-Alameda County Stadium (35-30) | 61-72 | |
| » W: Bill Caudill (9-7) L: Dale Murray (1-2) | Fifth | 9 out |
| Wednesday, August 29 |
| » Lost to Yankees (71-61), 4-1 | Oakland-Alameda County Stadium (35-31) | 61-73 | |
| » W: John Montefusco (2-2) L: Steve McCatty (7-12) S: Jay Howell (6) | Fifth | 9 out |
| Friday, August 31 |
| » Defeated Tigers (87-48), 7-6 | Oakland-Alameda County Stadium (36-31) | 62-73 | |
| » W: Keith Atherton (7-5) L: Dave Rozema (7-5) | Fifth | 7½ out |
| Saturday, September 1 |
| » Defeated Tigers (87-49), 7-5 | Oakland-Alameda County Stadium (37-31) | 63-73 | Won 2 |
| » W: Curt Young (7-3) L: Juan Berenguer (7-9) S: Chuck Rainey (1) | Fifth | 6½ out |
| Sunday, September 2 |
| » Lost to Tigers (88-49), 6-3 | Oakland-Alameda County Stadium (37-32) | 63-74 | |
| » W: Dan Petry (16-8) L: Tim Conroy (1-4) S: Willie Hernandez (27) | Fifth | 6½ out |
| Monday, September 3 |
| » Defeated White Sox (63-73), 8-2 | Comiskey Park I (2-2) | 64-74 | |
| » W: Chris Codiroli (2-3) L: Floyd Bannister (12-9) | Fourth | 6½ out |
| Tuesday, September 4 |
| » Lost to White Sox (64-73), 12-2 | Comiskey Park I (2-3) | 64-75 | |
| » W: Tom Seaver (13-9) L: Steve McCatty (7-13) | Fifth | 6½ out |
| Wednesday, September 5 |
| » Defeated White Sox (64-74), 5-4 | Comiskey Park I (3-3) | 65-75 | |
| » W: Ray Burris (12-7) L: Richard Dotson (13-12) S: Bill Caudill (28) | Fourth | 5½ out |
| Thursday, September 6 |
| » Lost to White Sox (65-74), 7-3 | Comiskey Park I (3-4) | 65-76 | |
| » W: La Marr Hoyt (12-15) L: Curt Young (7-4) | Fourth | 6 out |
| Friday, September 7 |
| » Lost to Indians (63-79), 13-2 | Cleveland Stadium (2-2) | 65-77 | Lost 2 |
| » W: Bert Blyleven (16-6) L: Tim Conroy (1-5) | Fourth | 7 out |
| Saturday, September 8 |
| » Defeated Indians (63-80), 9-5 | Cleveland Stadium (3-2) | 66-77 | |
| » W: Chris Codiroli (3-3) L: Neal Heaton (9-14) S: Bill Caudill (29) | Third | 7 out |
| Sunday, September 9 |
| » Lost to Indians (64-80), 7-5 | Cleveland Stadium (3-3) | 66-78 | |
| » W: Jamie Easterly (3-1) L: Steve McCatty (7-14) S: Tom Waddell (6) | Fifth | 8 out |
| Monday, September 10 |
| » Defeated White Sox (66-77), 1-0 | Oakland-Alameda County Stadium (38-32) | 67-78 | |
| » W: Ray Burris (13-7) L: Richard Dotson (13-13) S: Bill Caudill (30) | Fourth | 7 out |
| Tuesday, September 11 |
| » Defeated White Sox (66-78), 4-1 | Oakland-Alameda County Stadium (39-32) | 68-78 | Won 2 |
| » W: Curt Young (8-4) L: La Marr Hoyt (12-16) S: Bill Caudill (31) | Fourth | 7 out |
| Wednesday, September 12 |
| » Lost to White Sox (67-78), 4-2 | Oakland-Alameda County Stadium (39-33) | 68-79 | |
| » W: Britt Burns (3-11) L: Tim Conroy (1-6) S: Ron Reed (10) | Third | 7 out |
| Friday, September 14 |
| » Lost to Indians (67-81), 6-1 | Oakland-Alameda County Stadium (39-34) | 68-80 | Lost 2 |
| » W: Neal Heaton (10-14) L: Chris Codiroli (3-4) | Fourth | 7 out |
| Saturday, September 15 |
| » Lost to Indians (68-81), 6-3 | Oakland-Alameda County Stadium (39-35) | 68-81 | Lost 3 |
| » W: Jerry Ujdur (1-0) L: Ray Burris (13-8) S: Ernie Camacho (20) | Fourth | 8 out |
| Sunday, September 16 |
| » Lost to Indians (69-81), 8-4 | Oakland-Alameda County Stadium (39-36) | 68-82 | Lost 4 |
| » W: Tom Waddell (6-4) L: Keith Atherton (7-6) S: Ernie Camacho (21) | Fourth | 9 out |
| Monday, September 17 |
| » Defeated Rangers (65-84), 5-3 | Oakland-Alameda County Stadium (40-36) | 69-82 | |
| » W: Bill Krueger (9-10) L: Mike Mason (9-13) S: Bill Caudill (32) | Fourth | 9 out |
| Tuesday, September 18 |
| » Defeated Rangers (65-85), 5-2 | Oakland-Alameda County Stadium (41-36) | 70-82 | Won 2 |
| » W: Chris Codiroli (4-4) L: Frank Tanana (15-14) S: Bill Caudill (33) | Fourth | 9 out |
| Wednesday, September 19 |
| » Defeated Rangers (65-86), 8-7 | Oakland-Alameda County Stadium (42-36) | 71-82 | Won 3 |
| » W: Steve McCatty (8-14) L: Tom Henke (1-1) | Fifth | 8 out |
| Friday, September 21 |
| » Lost to Royals (79-74), 7-4 | Royals Stadium (3-2) | 71-83 | |
| » W: Frank Wills (2-3) L: Lary Sorensen (5-13) S: Dan Quisenberry (42) | Fourth | 8½ out |
| Saturday, September 22 |
| » Lost to Royals (80-74), 4-2 | Royals Stadium (3-3) | 71-84 | Lost 2 |
| » W: Bud Black (17-11) L: Ray Burris (13-9) S: Dan Quisenberry (43) | Fourth | 9½ out |
| Sunday, September 23 |
| » Defeated Royals (80-75), 5-1 | Royals Stadium (4-3) | 72-84 | |
| » W: Chris Codiroli (5-4) L: Mike Jones (2-3) S: Bill Caudill (34) | Third | 8½ out |
| Monday, September 24 |
| » Defeated Rangers (67-88), 10-6 | Arlington Stadium (1-4) | 73-84 | Won 2 |
| » W: Lary Sorensen (6-13) L: Dwayne Henry (0-1) S: Keith Atherton (2) | Fourth | 9 out |
| Tuesday, September 25 |
| » Defeated Rangers (67-89), 7-5 | Arlington Stadium (2-4) | 74-84 | Won 3 |
| » W: Curt Young (9-4) L: Charlie Hough (16-13) S: Bill Caudill (35) | Fourth | 9 out |
| Wednesday, September 26 |
| » Defeated Rangers (67-90), 7-5 | Arlington Stadium (3-4) | 75-84 | Won 4 |
| » W: Dave Leiper (1-0) L: Danny Darwin (8-12) S: Bill Caudill (36) | Fourth | 8 out |
| Friday, September 28 |
| » Lost to Royals (84-76), 6-5 | Oakland-Alameda County Stadium (42-37) | 75-85 | |
| » W: Charlie Leibrandt (11-7) L: Ray Burris (13-10) S: Dan Quisenberry (44) | Fourth | 9 out |
| Saturday, September 29 |
| » Defeated Royals (84-77), 6-2 | Oakland-Alameda County Stadium (43-37) | 76-85 | |
| » W: Chris Codiroli (6-4) L: Bret Saberhagen (10-11) | Fourth | 8 out |
| Sunday, September 30 |
| » Defeated Royals (84-78), 8-2 | Oakland-Alameda County Stadium (44-37) | 77-85 | Won 2 |
| » W: Bill Krueger (10-10) L: Mark Gubicza (10-14) | Third | 7 out |
| Thursday, December 20 |
| Former Athletic Gonzalo Marquez dies in Valencia, Venezuela at the age of 39. |
Game information provided by Retrosheet (www.retrosheet.org) |