| Saturday, January 12 |
| Future Athletic Bobby Crosby is born in Lakewood, CA. |
| Monday, March 17 |
| Former Athletic Bob Hooper dies in New Brunswick, NJ at the age of 58. |
| Thursday, April 10 |
| » Lost to Twins (1-0), 9-7 | Oakland-Alameda County Stadium (0-1) | 0-1 | |
| » W: Doug Corbett (1-0) L: Steve McCatty (0-1) | Third | 1 out |
| » Major-league debuts: Mike Davis (Athletics) Sal Butera and Doug Corbett (Twins) |
| Friday, April 11 |
| » Defeated Twins (1-1), 1-0 | Oakland-Alameda County Stadium (1-1) | 1-1 | |
| » W: Matt Keough (1-0) L: Pete Redfern (0-1) | Third | 1 out |
| Saturday, April 12 |
| » Lost to Twins (2-1), 6-0 | Oakland-Alameda County Stadium (1-2) | 1-2 | |
| » W: Geoff Zahn (1-0) L: Brian Kingman (0-1) | Fourth | 1½ out |
| Sunday, April 13 |
| » Defeated Twins (2-2), 4-1 | Oakland-Alameda County Stadium (2-2) | 2-2 | |
| » W: Mike Norris (1-0) L: Roger Erickson (0-1) | Third | 1 out |
| Monday, April 14 |
| » Lost to Mariners (4-1), 7-1 | Oakland-Alameda County Stadium (2-3) | 2-3 | |
| » W: Glenn Abbott (1-0) L: Steve McCatty (0-2) | Fifth | 2 out |
| Tuesday, April 15 |
| » Defeated Mariners (4-2), 12-3 | Oakland-Alameda County Stadium (3-3) | 3-3 | |
| » W: Steve McCatty (1-2) L: Mike Parrott (1-1) | Fourth | 1½ out |
| Wednesday, April 16 |
| » Defeated Mariners (4-3), 6-1 | Oakland-Alameda County Stadium (4-3) | 4-3 | Won 2 |
| » W: Matt Keough (2-0) L: Jim Beattie (0-1) | Third | 1 out |
| Friday, April 18 |
| » Defeated Angels (4-3), 6-3 | Oakland-Alameda County Stadium (5-3) | 5-3 | Won 3 |
| » W: Brian Kingman (1-1) L: Bruce Kison (0-2) | Third | 1 out |
| Saturday, April 19 |
| » Defeated Angels (4-4), 3-1 | Oakland-Alameda County Stadium (6-3) | 6-3 | Won 4 |
| » W: Mike Norris (2-0) L: Don Aase (1-1) S: Jeff Jones (1) | Second | 1 out |
| Sunday, April 20 |
| » Defeated Angels (4-5), 6-1 | Oakland-Alameda County Stadium (7-3) | 7-3 | Won 5 |
| » W: Matt Keough (3-0) L: Chris Knapp (0-1) | First | -- |
| » Defeated Angels (4-6), 8-2 | Oakland-Alameda County Stadium (8-3) | 8-3 | Won 6 |
| » W: Steve McCatty (2-2) L: Frank Tanana (1-1) | First | -- |
| Monday, April 21 |
| » Defeated Mariners (7-6), 4-2 | Kingdome (1-0) | 9-3 | Won 7 |
| » W: Jeff Jones (1-0) L: Shane Rawley (0-1) | First | -- |
| Tuesday, April 22 |
| » Lost to Mariners (8-6), 5-4 | Kingdome (1-1) | 9-4 | |
| » W: Rick Honeycutt (3-0) L: Brian Kingman (1-2) S: Byron McLaughlin (1) | First | -- |
| Wednesday, April 23 |
| » Defeated Mariners (8-7), 5-2 | Kingdome (2-1) | 10-4 | |
| » W: Rick Langford (1-0) L: Byron McLaughlin (1-1) | First | -- |
| Friday, April 25 |
| » Lost to Twins (7-8), 10-3 | Metropolitan Stadium (0-1) | 10-5 | |
| » W: Jerry Koosman (2-1) L: Matt Keough (3-1) | Second | ½ out |
| Saturday, April 26 |
| » Lost to Twins (8-8), 5-1 | Metropolitan Stadium (0-2) | 10-6 | Lost 2 |
| » W: Pete Redfern (2-1) L: Steve McCatty (2-3) | Second | 1½ out |
| Future Athletic Mike Wood is born in West Palm Beach, FL. |
| Sunday, April 27 |
| » Lost to Twins (9-8), 20-11 | Metropolitan Stadium (0-3) | 10-7 | Lost 3 |
| » W: Doug Corbett (3-0) L: Brian Kingman (1-3) | Second | 1½ out |
| Monday, April 28 |
| » Defeated Angels (7-9), 8-0 | Anaheim Stadium (1-0) | 11-7 | |
| » W: Rick Langford (2-0) L: Bruce Kison (1-3) | Second | 1 out |
| Tuesday, April 29 |
| » Defeated Angels (7-10), 4-2 | Anaheim Stadium (2-0) | 12-7 | Won 2 |
| » W: Mike Norris (3-0) L: Frank Tanana (1-2) | Second | 1 out |
| Wednesday, April 30 |
| » Lost to Angels (8-10), 2-1 | Anaheim Stadium (2-1) | 12-8 | |
| » W: Don Aase (3-1) L: Matt Keough (3-2) | Second | 1 out |
| Friday, May 2 |
| » Defeated Tigers (7-12), 10-6 | Oakland-Alameda County Stadium (9-3) | 13-8 | |
| » W: Steve McCatty (3-3) L: Dave Rozema (2-2) | First | -- |
| Saturday, May 3 |
| » Defeated Tigers (7-13), 5-3 | Oakland-Alameda County Stadium (10-3) | 14-8 | Won 2 |
| » W: Brian Kingman (2-3) L: Jack Morris (3-3) S: Jeff Jones (2) | First | -- |
| Sunday, May 4 |
| » Lost to Tigers (8-13), 4-0 | Oakland-Alameda County Stadium (10-4) | 14-9 | |
| » W: Milt Wilcox (2-2) L: Rick Langford (2-1) | First | -- |
| » Defeated Tigers (8-14), 1-0 | Oakland-Alameda County Stadium (11-4) | 15-9 | |
| » W: Mike Norris (4-0) L: Dan Schatzeder (1-4) | First | -- |
| Monday, May 5 |
| » Defeated Indians (7-14), 5-1 | Oakland-Alameda County Stadium (12-4) | 16-9 | Won 2 |
| » W: Matt Keough (4-2) L: John Denny (1-3) | First | -- |
| Tuesday, May 6 |
| » Lost to Indians (8-14), 4-3 | Oakland-Alameda County Stadium (12-5) | 16-10 | |
| » W: Len Barker (4-1) L: Steve McCatty (3-4) | First | -- |
| Wednesday, May 7 |
| » Lost to Indians (9-14), 2-1 | Oakland-Alameda County Stadium (12-6) | 16-11 | Lost 2 |
| » W: Rick Waits (2-3) L: Brian Kingman (2-4) | First | -- |
| Saturday, May 10 |
| » Defeated Blue Jays (15-10), 4-3 | Oakland-Alameda County Stadium (13-6) | 17-11 | |
| » W: Rick Langford (3-1) L: Jerry Garvin (0-2) | First | -- |
| Sunday, May 11 |
| » Defeated Blue Jays (15-11), 12-1 | Oakland-Alameda County Stadium (14-6) | 18-11 | Won 2 |
| » W: Mike Norris (5-0) L: Dave Lemanczyk (2-4) | First | -- |
| Tuesday, May 13 |
| » Lost to Tigers (13-16), 4-3 | Tiger Stadium (0-1) | 18-12 | |
| » W: Jack Morris (4-4) L: Matt Keough (4-3) S: Aurelio Lopez (4) | First | -- |
| Wednesday, May 14 |
| » Lost to Tigers (14-16), 6-5 | Tiger Stadium (0-2) | 18-13 | Lost 2 |
| » W: Aurelio Lopez (2-2) L: Jeff Jones (1-1) | First | -- |
| Friday, May 16 |
| » Lost to Blue Jays (17-12), 1-0 | Exhibition Stadium (0-1) | 18-14 | Lost 3 |
| » W: Jesse Jefferson (2-1) L: Mike Norris (5-1) | First | -- |
| Saturday, May 17 |
| » Defeated Blue Jays (17-13), 4-2 | Exhibition Stadium (1-1) | 19-14 | |
| » W: Matt Keough (5-3) L: Joey McLaughlin (1-2) | First | -- |
| Sunday, May 18 |
| » Lost to Blue Jays (18-13), 12-1 | Exhibition Stadium (1-2) | 19-15 | |
| » W: Paul Mirabella (4-2) L: Rick Langford (3-2) | Second | ½ out |
| Monday, May 19 |
| » Lost to Royals (19-15), 6-5 | Royals Stadium (0-1) | 19-16 | Lost 2 |
| » W: Dan Quisenberry (2-1) L: Dave Hamilton (0-1) | Third | 1½ out |
| Tuesday, May 20 |
| » Lost to Royals (20-15), 1-0 | Royals Stadium (0-2) | 19-17 | Lost 3 |
| » W: Rich Gale (1-5) L: Mike Norris (5-2) S: Dan Quisenberry (7) | Third | 2½ out |
| Wednesday, May 21 |
| » Defeated Royals (20-16), 4-2 | Royals Stadium (1-2) | 20-17 | |
| » W: Bob Lacey (1-0) L: Dan Quisenberry (2-2) | Third | 1½ out |
| Thursday, May 22 |
| » Lost to Royals (21-16), 16-3 | Royals Stadium (1-3) | 20-18 | |
| » W: Renie Martin (5-1) L: Matt Keough (5-4) | Third | 2 out |
| Friday, May 23 |
| » Lost to Rangers (20-18), 3-1 | Oakland-Alameda County Stadium (14-7) | 20-19 | Lost 2 |
| » W: Fergie Jenkins (3-3) L: Rick Langford (3-3) | Fourth | 2½ out |
| Saturday, May 24 |
| » Defeated Rangers (20-19), 15-7 | Oakland-Alameda County Stadium (15-7) | 21-19 | |
| » W: Steve McCatty (4-4) L: Gaylord Perry (3-2) | Third | 2½ out |
| Sunday, May 25 |
| » Lost to Rangers (21-19), 7-3 | Oakland-Alameda County Stadium (15-8) | 21-20 | |
| » W: Doc Medich (4-2) L: Mike Norris (5-3) S: Jim Kern (2) | Fifth | 3½ out |
| Monday, May 26 |
| » Defeated Royals (24-17), 4-1 | Oakland-Alameda County Stadium (16-8) | 22-20 | |
| » W: Matt Keough (6-4) L: Renie Martin (5-2) | Fourth | 2½ out |
| Tuesday, May 27 |
| » Lost to Royals (25-17), 4-2 | Oakland-Alameda County Stadium (16-9) | 22-21 | |
| » W: Dennis Leonard (4-4) L: Brian Kingman (2-5) | Fourth | 3½ out |
| Wednesday, May 28 |
| » Defeated Royals (25-18), 6-3 | Oakland-Alameda County Stadium (17-9) | 23-21 | |
| » W: Rick Langford (4-3) L: Rich Gale (1-6) | Third | 2½ out |
| Friday, May 30 |
| » Defeated Rangers (22-22), 6-3 | Arlington Stadium (1-0) | 24-21 | Won 2 |
| » W: Steve McCatty (5-4) L: Gaylord Perry (3-3) | Second | 2½ out |
| Saturday, May 31 |
| » Defeated Rangers (22-23), 4-3 | Arlington Stadium (2-0) | 25-21 | Won 3 |
| » W: Mike Norris (6-3) L: Doc Medich (4-3) S: Bob Lacey (1) | Second | 2½ out |
| Sunday, June 1 |
| » Lost to Rangers (23-23), 7-3 | Arlington Stadium (2-1) | 25-22 | |
| » W: Danny Darwin (4-1) L: Matt Keough (6-5) | Second | 2½ out |
| Monday, June 2 |
| » Lost to Indians (22-24), 10-5 | Cleveland Stadium (0-1) | 25-23 | Lost 2 |
| » W: Wayne Garland (1-0) L: Brian Kingman (2-6) | Second | 2½ out |
| Tuesday, June 3 |
| » Lost to Indians (23-24), 6-4 | Cleveland Stadium (0-2) | 25-24 | Lost 3 |
| » W: Victor Cruz (3-2) L: Rick Langford (4-4) | Third | 3½ out |
| Wednesday, June 4 |
| » Lost to Indians (24-24), 5-3 | Cleveland Stadium (0-3) | 25-25 | Lost 4 |
| » W: Dan Spillner (5-3) L: Steve McCatty (5-5) S: Victor Cruz (2) | Third | 4½ out |
| Friday, June 6 |
| » Lost to Red Sox (24-25), 14-8 | Oakland-Alameda County Stadium (17-10) | 25-26 | Lost 5 |
| » W: Chuck Rainey (6-1) L: Mike Norris (6-4) | Third | 6 out |
| Saturday, June 7 |
| » Defeated Red Sox (24-26), 4-1 | Oakland-Alameda County Stadium (18-10) | 26-26 | |
| » W: Matt Keough (7-5) L: Mike Torrez (1-6) | Third | 6 out |
| Sunday, June 8 |
| » Lost to Red Sox (25-26), 6-1 | Oakland-Alameda County Stadium (18-11) | 26-27 | |
| » W: Tom Burgmeier (3-1) L: Dave Hamilton (0-2) | Third | 7 out |
| Monday, June 9 |
| » Lost to Orioles (27-26), 3-2 | Oakland-Alameda County Stadium (18-12) | 26-28 | Lost 2 |
| » W: Mike Flanagan (6-4) L: Rick Langford (4-5) | Third | 7½ out |
| Tuesday, June 10 |
| » Defeated Orioles (27-27), 7-4 | Oakland-Alameda County Stadium (19-12) | 27-28 | |
| » W: Steve McCatty (6-5) L: Scott McGregor (5-3) | Third | 7½ out |
| Wednesday, June 11 |
| » Defeated Orioles (27-28), 6-2 | Oakland-Alameda County Stadium (20-12) | 28-28 | Won 2 |
| » W: Mike Norris (7-4) L: Sammy Stewart (2-6) | Third | 7 out |
| Friday, June 13 |
| » Defeated Yankees (34-21), 4-3 | Oakland-Alameda County Stadium (21-12) | 29-28 | Won 3 |
| » W: Brian Kingman (3-6) L: Ron Guidry (6-3) | Third | 7½ out |
| » Lost to Yankees (35-21), 6-4 | Oakland-Alameda County Stadium (21-13) | 29-29 | |
| » W: Ron Davis (3-3) L: Matt Keough (7-6) S: Rich Gossage (7) | Third | 7½ out |
| Saturday, June 14 |
| » Lost to Yankees (36-21), 2-1 | Oakland-Alameda County Stadium (21-14) | 29-30 | Lost 2 |
| » W: Ed Figueroa (2-2) L: Rick Langford (4-6) S: Rich Gossage (8) | Third | 7½ out |
| Sunday, June 15 |
| » Lost to Yankees (37-21), 8-2 | Oakland-Alameda County Stadium (21-15) | 29-31 | Lost 3 |
| » W: Luis Tiant (5-3) L: Steve McCatty (6-6) | Third | 8½ out |
| Monday, June 16 |
| » Defeated Red Sox (31-28), 11-8 | Fenway Park (1-0) | 30-31 | |
| » W: Mike Norris (8-4) L: Chuck Rainey (7-2) | Third | 7½ out |
| Tuesday, June 17 |
| » Lost to Red Sox (32-28), 6-2 | Fenway Park (1-1) | 30-32 | |
| » W: Mike Torrez (3-6) L: Matt Keough (7-7) | Third | 8½ out |
| Wednesday, June 18 |
| » Lost to Orioles (32-30), 3-2 | Memorial Stadium (0-1) | 30-33 | Lost 2 |
| » W: Mike Flanagan (7-5) L: Jeff Jones (1-2) | Third | 9½ out |
| Thursday, June 19 |
| » Lost to Orioles (33-30), 4-3 | Memorial Stadium (0-2) | 30-34 | Lost 3 |
| » W: Scott McGregor (6-3) L: Rick Langford (4-7) | Third | 9½ out |
| Friday, June 20 |
| » Lost to Yankees (42-21), 15-7 | Yankee Stadium (0-1) | 30-35 | Lost 4 |
| » W: Luis Tiant (6-3) L: Steve McCatty (6-7) S: Ron Davis (3) | Third | 9½ out |
| Saturday, June 21 |
| » Lost to Yankees (43-21), 5-3 | Yankee Stadium (0-2) | 30-36 | Lost 5 |
| » W: Tommy John (10-2) L: Mike Norris (8-5) S: Rich Gossage (10) | Fourth | 9½ out |
| Sunday, June 22 |
| » Defeated Yankees (43-22), 5-2 | Yankee Stadium (1-2) | 31-36 | |
| » W: Matt Keough (8-7) L: Tom Underwood (7-4) | Second | 9½ out |
| Monday, June 23 |
| » Lost to Brewers (36-29), 8-0 | Oakland-Alameda County Stadium (21-16) | 31-37 | |
| » W: Reggie Cleveland (5-2) L: Brian Kingman (3-7) | Third | 9½ out |
| Tuesday, June 24 |
| » Lost to Brewers (37-29), 5-3 | Oakland-Alameda County Stadium (21-17) | 31-38 | Lost 2 |
| » W: Bill Travers (6-3) L: Rick Langford (4-8) S: Bob McClure (6) | Fourth | 10 out |
| Wednesday, June 25 |
| » Lost to Brewers (38-29), 5-2 | Oakland-Alameda County Stadium (21-18) | 31-39 | Lost 3 |
| » W: Moose Haas (8-6) L: Steve McCatty (6-8) | Fourth | 11 out |
| Friday, June 27 |
| » Defeated White Sox (33-36), 3-1 | Oakland-Alameda County Stadium (22-18) | 32-39 | |
| » W: Mike Norris (9-5) L: Ross Baumgarten (1-5) | Fourth | 11 out |
| Saturday, June 28 |
| » Lost to White Sox (34-36), 3-0 | Oakland-Alameda County Stadium (22-19) | 32-40 | |
| » W: Rich Wortham (4-3) L: Matt Keough (8-8) S: Ed Farmer (17) | Fourth | 12 out |
| Sunday, June 29 |
| » Lost to White Sox (35-36), 3-0 | Oakland-Alameda County Stadium (22-20) | 32-41 | Lost 2 |
| » W: Britt Burns (9-5) L: Brian Kingman (3-8) S: Mike Proly (4) | Fourth | 12 out |
| Monday, June 30 |
| » Lost to Brewers (41-30), 5-2 | County Stadium (0-1) | 32-42 | Lost 3 |
| » W: Bill Travers (7-3) L: Rick Langford (4-9) | Fourth | 12 out |
| Tuesday, July 1 |
| » Lost to Brewers (42-30), 5-2 | County Stadium (0-2) | 32-43 | Lost 4 |
| » W: Moose Haas (9-6) L: Steve McCatty (6-9) | Sixth | 12 out |
| » Major-league debuts: Jeff Cox (Athletics) |
| Wednesday, July 2 |
| » Defeated Brewers (42-31), 5-3 | County Stadium (1-2) | 33-43 | |
| » W: Mike Norris (10-5) L: Bob McClure (1-3) | Fourth | 12 out |
| Thursday, July 3 |
| » Defeated Brewers (42-32), 7-5 | County Stadium (2-2) | 34-43 | Won 2 |
| » W: Matt Keough (9-8) L: Mike Caldwell (7-5) S: Bob Lacey (2) | Fourth | 11 out |
| Friday, July 4 |
| » Defeated White Sox (36-40), 2-0 | Comiskey Park I (1-0) | 35-43 | Won 3 |
| » W: Brian Kingman (4-8) L: Britt Burns (9-6) | Fourth | 11 out |
| Saturday, July 5 |
| » Defeated White Sox (36-41), 5-0 | Comiskey Park I (2-0) | 36-43 | Won 4 |
| » W: Rick Langford (5-9) L: Richard Dotson (7-4) | Fourth | 11 out |
| » Major-league debuts: Randy Johnson (White Sox) |
| Sunday, July 6 |
| » Lost to White Sox (37-41), 2-0 | Comiskey Park I (2-1) | 36-44 | |
| » W: Steve Trout (4-8) L: Mike Norris (10-6) | Fourth | 11½ out |
| » Lost to White Sox (38-41), 5-4 | Comiskey Park I (2-2) | 36-45 | Lost 2 |
| » W: Ed Farmer (6-3) L: Bob Lacey (1-1) | Fourth | 11½ out |
| Thursday, July 10 |
| » Lost to Angels (30-48), 5-1 | Oakland-Alameda County Stadium (22-21) | 36-46 | Lost 3 |
| » W: Frank Tanana (4-9) L: Matt Keough (9-9) | Fifth | 12 out |
| » Defeated Angels (30-49), 5-4 | Oakland-Alameda County Stadium (23-21) | 37-46 | |
| » W: Rick Langford (6-9) L: Don Aase (5-9) | Fifth | 12 out |
| Friday, July 11 |
| » Defeated Angels (30-50), 6-2 | Oakland-Alameda County Stadium (24-21) | 38-46 | Won 2 |
| » W: Brian Kingman (5-8) L: Chris Knapp (2-6) S: Jeff Jones (3) | Fifth | 12 out |
| Saturday, July 12 |
| » Defeated Angels (30-51), 5-4 | Anaheim Stadium (3-1) | 39-46 | Won 3 |
| » W: Mike Norris (11-6) L: Dave Lemanczyk (3-9) S: Craig Minetto (1) | Fourth | 11 out |
| Sunday, July 13 |
| » Lost to Angels (31-51), 5-4 | Anaheim Stadium (3-2) | 39-47 | |
| » W: John Montague (2-1) L: Dave Hamilton (0-3) | Third | 12 out |
| Monday, July 14 |
| » Defeated Angels (31-52), 6-4 | Anaheim Stadium (4-2) | 40-47 | |
| » W: Rick Langford (7-9) L: Bruce Kison (3-6) | Fourth | 12 out |
| Wednesday, July 16 |
| » Lost to Tigers (44-37), 7-2 | Oakland-Alameda County Stadium (24-22) | 40-48 | |
| » W: Roger Weaver (2-0) L: Brian Kingman (5-9) | Fourth | 13½ out |
| Thursday, July 17 |
| » Defeated Tigers (44-38), 5-2 | Oakland-Alameda County Stadium (25-22) | 41-48 | |
| » W: Matt Keough (10-9) L: Jack Morris (11-8) | Third | 12½ out |
| Friday, July 18 |
| » Defeated Indians (41-44), 9-1 | Oakland-Alameda County Stadium (26-22) | 42-48 | Won 2 |
| » W: Mike Norris (12-6) L: Dan Spillner (7-8) | Third | 12½ out |
| Saturday, July 19 |
| » Defeated Indians (41-45), 3-0 | Oakland-Alameda County Stadium (27-22) | 43-48 | Won 3 |
| » W: Steve McCatty (7-9) L: Rick Waits (7-9) | Third | 11½ out |
| Sunday, July 20 |
| » Defeated Indians (41-46), 6-5 | Oakland-Alameda County Stadium (28-22) | 44-48 | Won 4 |
| » W: Rick Langford (8-9) L: Victor Cruz (4-5) | Third | 11½ out |
| Monday, July 21 |
| » Lost to Blue Jays (39-49), 1-0 | Oakland-Alameda County Stadium (28-23) | 44-49 | |
| » W: Dave Stieb (10-6) L: Brian Kingman (5-10) | Third | 12½ out |
| Tuesday, July 22 |
| » Lost to Blue Jays (40-49), 6-2 | Oakland-Alameda County Stadium (28-24) | 44-50 | Lost 2 |
| » W: Jesse Jefferson (3-6) L: Matt Keough (10-10) S: Jerry Garvin (5) | Third | 12 out |
| » Defeated Blue Jays (40-50), 5-1 | Oakland-Alameda County Stadium (29-24) | 45-50 | |
| » W: Mike Norris (13-6) L: Paul Mirabella (4-9) | Third | 12 out |
| Wednesday, July 23 |
| » Defeated Blue Jays (40-51), 6-2 | Oakland-Alameda County Stadium (30-24) | 46-50 | Won 2 |
| » W: Steve McCatty (8-9) L: Jack Kucek (2-3) | Third | 12 out |
| Friday, July 25 |
| » Defeated Tigers (49-40), 5-3 | Tiger Stadium (1-2) | 47-50 | Won 3 |
| » W: Rick Langford (9-9) L: Bruce Robbins (1-1) | Third | 12½ out |
| Saturday, July 26 |
| » Lost to Tigers (50-40), 7-0 | Tiger Stadium (1-3) | 47-51 | |
| » W: Dan Schatzeder (6-6) L: Brian Kingman (5-11) | Third | 12½ out |
| Sunday, July 27 |
| » Lost to Tigers (51-40), 4-2 | Tiger Stadium (1-4) | 47-52 | Lost 2 |
| » W: Milt Wilcox (10-6) L: Craig Minetto (0-1) | Third | 13 out |
| » Defeated Tigers (51-41), 4-0 | Tiger Stadium (2-4) | 48-52 | |
| » W: Matt Keough (11-10) L: Jack Morris (11-9) S: Bob Lacey (3) | Third | 13 out |
| Monday, July 28 |
| » Defeated Blue Jays (43-53), 5-3 | Exhibition Stadium (2-2) | 49-52 | Won 2 |
| » W: Mike Norris (14-6) L: Mike Barlow (0-1) | Third | 12½ out |
| Tuesday, July 29 |
| » Defeated Blue Jays (43-54), 6-5 | Exhibition Stadium (3-2) | 50-52 | Won 3 |
| » W: Bob Lacey (2-1) L: Jerry Garvin (2-5) | Third | 12½ out |
| Wednesday, July 30 |
| » Defeated Blue Jays (43-55), 11-1 | Exhibition Stadium (4-2) | 51-52 | Won 4 |
| » W: Rick Langford (10-9) L: Dave Stieb (10-8) | Second | 11½ out |
| Friday, August 1 |
| » Defeated Indians (49-48), 2-1 | Cleveland Stadium (1-3) | 52-52 | Won 5 |
| » W: Brian Kingman (6-11) L: Rick Waits (7-10) S: Dave Beard (1) | Second | 12 out |
| Sunday, August 3 |
| » Defeated Indians (49-49), 11-3 | Cleveland Stadium (2-3) | 53-52 | Won 6 |
| » W: Matt Keough (12-10) L: Wayne Garland (5-4) S: Jeff Jones (4) | Second | 12 out |
| » Lost to Indians (50-49), 4-2 | Cleveland Stadium (2-4) | 53-53 | |
| » W: Len Barker (12-7) L: Mike Norris (14-7) | Second | 12 out |
| Monday, August 4 |
| » Defeated Twins (47-58), 11-2 | Oakland-Alameda County Stadium (31-24) | 54-53 | |
| » W: Steve McCatty (9-9) L: Geoff Zahn (10-13) | Second | 12 out |
| Tuesday, August 5 |
| » Defeated Twins (47-59), 3-2 | Oakland-Alameda County Stadium (32-24) | 55-53 | Won 2 |
| » W: Rick Langford (11-9) L: Jerry Koosman (9-10) | Second | 12 out |
| Wednesday, August 6 |
| » Defeated Twins (47-60), 3-1 | Oakland-Alameda County Stadium (33-24) | 56-53 | Won 3 |
| » W: Brian Kingman (7-11) L: Roger Erickson (3-9) | Second | 12 out |
| Friday, August 8 |
| » Lost to Mariners (40-68), 2-1 | Oakland-Alameda County Stadium (33-25) | 56-54 | |
| » W: Shane Rawley (6-5) L: Matt Keough (12-11) S: Dave Roberts (3) | Second | 13½ out |
| Saturday, August 9 |
| » Defeated Mariners (40-69), 2-1 | Oakland-Alameda County Stadium (34-25) | 57-54 | |
| » W: Mike Norris (15-7) L: Rick Honeycutt (8-12) | Second | 12½ out |
| Sunday, August 10 |
| » Lost to Mariners (41-69), 2-1 | Oakland-Alameda County Stadium (34-26) | 57-55 | |
| » W: Dave Heaverlo (5-1) L: Steve McCatty (9-10) S: Shane Rawley (8) | Second | 13 out |
| » Defeated Mariners (41-70), 6-1 | Oakland-Alameda County Stadium (35-26) | 58-55 | |
| » W: Rick Langford (12-9) L: Byron McLaughlin (1-5) | Second | 13 out |
| Tuesday, August 12 |
| » Lost to Twins (49-63), 3-2 | Metropolitan Stadium (0-4) | 58-56 | |
| » W: Doug Corbett (8-3) L: Brian Kingman (7-12) | Second | 13½ out |
| Wednesday, August 13 |
| » Defeated Twins (49-64), 6-2 | Metropolitan Stadium (1-4) | 59-56 | |
| » W: Matt Keough (13-11) L: Fernando Arroyo (2-5) | Second | 13½ out |
| Thursday, August 14 |
| » Defeated Twins (49-65), 2-1 | Metropolitan Stadium (2-4) | 60-56 | Won 2 |
| » W: Mike Norris (16-7) L: Doug Corbett (8-4) | Second | 13 out |
| Friday, August 15 |
| » Defeated Mariners (41-74), 11-3 | Kingdome (3-1) | 61-56 | Won 3 |
| » W: Rick Langford (13-9) L: Glenn Abbott (8-8) | Second | 13 out |
| Saturday, August 16 |
| » Defeated Mariners (41-75), 8-3 | Kingdome (4-1) | 62-56 | Won 4 |
| » W: Steve McCatty (10-10) L: Byron McLaughlin (1-6) | Second | 13 out |
| Sunday, August 17 |
| » Lost to Mariners (42-75), 4-3 | Kingdome (4-2) | 62-57 | |
| » W: Rob Dressler (2-6) L: Brian Kingman (7-13) S: Shane Rawley (9) | Second | 14 out |
| Tuesday, August 19 |
| » Lost to Red Sox (61-54), 7-5 | Oakland-Alameda County Stadium (35-27) | 62-58 | Lost 2 |
| » W: Bob Stanley (8-6) L: Craig Minetto (0-2) S: Tom Burgmeier (18) | Second | 15½ out |
| Wednesday, August 20 |
| » Defeated Red Sox (61-55), 2-1 | Oakland-Alameda County Stadium (36-27) | 63-58 | |
| » W: Mike Norris (17-7) L: Dennis Eckersley (9-11) S: Bob Lacey (4) | Second | 15½ out |
| Thursday, August 21 |
| » Lost to Red Sox (62-55), 5-1 | Oakland-Alameda County Stadium (36-28) | 63-59 | |
| » W: John Tudor (4-2) L: Rick Langford (13-10) | Second | 15½ out |
| Friday, August 22 |
| » Lost to Orioles (72-48), 3-2 | Oakland-Alameda County Stadium (36-29) | 63-60 | Lost 2 |
| » W: Sammy Stewart (4-7) L: Steve McCatty (10-11) | Second | 15½ out |
| Saturday, August 23 |
| » Lost to Orioles (73-48), 4-2 | Oakland-Alameda County Stadium (36-30) | 63-61 | Lost 3 |
| » W: Steve Stone (21-4) L: Brian Kingman (7-14) S: Tim Stoddard (19) | Second | 16½ out |
| Sunday, August 24 |
| » Lost to Orioles (74-48), 3-0 | Oakland-Alameda County Stadium (36-31) | 63-62 | Lost 4 |
| » W: Mike Flanagan (13-9) L: Matt Keough (13-12) | Second | 17½ out |
| Monday, August 25 |
| » Defeated Yankees (75-49), 9-1 | Oakland-Alameda County Stadium (37-31) | 64-62 | |
| » W: Mike Norris (18-7) L: Tommy John (17-7) | Second | 17½ out |
| Tuesday, August 26 |
| » Defeated Yankees (75-50), 3-1 | Oakland-Alameda County Stadium (38-31) | 65-62 | Won 2 |
| » W: Rick Langford (14-10) L: Luis Tiant (6-9) | Second | 17½ out |
| Thursday, August 28 |
| » Lost to Red Sox (67-56), 3-2 | Fenway Park (1-2) | 65-63 | |
| » W: Tom Burgmeier (5-3) L: Steve McCatty (10-12) S: Bob Stanley (12) | Second | 18 out |
| Friday, August 29 |
| » Lost to Red Sox (68-56), 6-3 | Fenway Park (1-3) | 65-64 | Lost 2 |
| » W: Mike Torrez (8-12) L: Brian Kingman (7-15) S: Tom Burgmeier (19) | Second | 19 out |
| Saturday, August 30 |
| » Lost to Red Sox (69-56), 7-6 | Fenway Park (1-4) | 65-65 | Lost 3 |
| » W: Bill Campbell (4-0) L: Bob Lacey (2-2) | Second | 19 out |
| Sunday, August 31 |
| » Lost to Red Sox (70-56), 5-1 | Fenway Park (1-5) | 65-66 | Lost 4 |
| » W: John Tudor (6-2) L: Mike Norris (18-8) S: Bob Stanley (13) | Second | 20 out |
| Monday, September 1 |
| » Lost to Yankees (79-51), 5-0 | Yankee Stadium (1-3) | 65-67 | Lost 5 |
| » W: Tom Underwood (11-9) L: Rick Langford (14-11) | Third | 20 out |
| Tuesday, September 2 |
| » Lost to Yankees (80-51), 6-1 | Yankee Stadium (1-4) | 65-68 | Lost 6 |
| » W: Rudy May (12-5) L: Steve McCatty (10-13) | Third | 20½ out |
| Wednesday, September 3 |
| » Lost to Yankees (81-51), 8-3 | Yankee Stadium (1-5) | 65-69 | Lost 7 |
| » W: Tommy John (19-7) L: Brian Kingman (7-16) | Third | 20½ out |
| Thursday, September 4 |
| » Defeated Orioles (79-53), 7-1 | Memorial Stadium (1-2) | 66-69 | |
| » W: Matt Keough (14-12) L: Mike Flanagan (13-11) | Third | 19½ out |
| Friday, September 5 |
| » Lost to Orioles (80-53), 8-7 | Memorial Stadium (1-3) | 66-70 | |
| » W: Tim Stoddard (4-3) L: Jeff Jones (1-3) | Third | 20½ out |
| Saturday, September 6 |
| » Defeated Orioles (80-54), 3-2 | Memorial Stadium (2-3) | 67-70 | |
| » W: Rick Langford (15-11) L: Jim Palmer (15-10) | Third | 19½ out |
| Sunday, September 7 |
| » Defeated Orioles (80-55), 5-2 | Memorial Stadium (3-3) | 68-70 | Won 2 |
| » W: Steve McCatty (11-13) L: Steve Stone (22-6) | Third | 19½ out |
| Monday, September 8 |
| » Lost to Rangers (69-68), 6-2 | Oakland-Alameda County Stadium (38-32) | 68-71 | |
| » W: John Butcher (1-0) L: Brian Kingman (7-17) | Third | 19½ out |
| » Major-league debuts: John Butcher (Rangers) |
| Tuesday, September 9 |
| » Defeated Rangers (69-69), 6-3 | Oakland-Alameda County Stadium (39-32) | 69-71 | |
| » W: Matt Keough (15-12) L: Ed Figueroa (3-10) S: Jeff Jones (5) | Third | 18½ out |
| Wednesday, September 10 |
| » Defeated Rangers (69-70), 3-1 | Oakland-Alameda County Stadium (40-32) | 70-71 | Won 2 |
| » W: Mike Norris (19-8) L: Jon Matlack (9-7) | Third | 17½ out |
| Friday, September 12 |
| » Defeated Royals (88-54), 9-5 | Oakland-Alameda County Stadium (41-32) | 71-71 | Won 3 |
| » W: Rick Langford (16-11) L: Craig Chamberlain (0-1) | Second | 17 out |
| Saturday, September 13 |
| » Defeated Royals (88-55), 6-2 | Oakland-Alameda County Stadium (42-32) | 72-71 | Won 4 |
| » W: Steve McCatty (12-13) L: Larry Gura (18-7) | Second | 16 out |
| Sunday, September 14 |
| » Lost to Royals (89-55), 4-3 | Oakland-Alameda County Stadium (42-33) | 72-72 | |
| » W: Paul Splittorff (12-10) L: Brian Kingman (7-18) S: Dan Quisenberry (33) | Second | 17 out |
| Monday, September 15 |
| » Lost to Rangers (70-73), 2-0 | Arlington Stadium (2-2) | 72-73 | Lost 2 |
| » W: Jon Matlack (10-7) L: Matt Keough (15-13) S: John Henry Johnson (3) | Second | 17½ out |
| Tuesday, September 16 |
| » Defeated Rangers (70-74), 4-2 | Arlington Stadium (3-2) | 73-73 | |
| » W: Mike Norris (20-8) L: Danny Darwin (11-3) | Second | 17 out |
| Wednesday, September 17 |
| » Defeated Rangers (70-75), 6-4 | Arlington Stadium (4-2) | 74-73 | Won 2 |
| » W: Rick Langford (17-11) L: John Butcher (1-2) S: Bob Lacey (5) | Second | 16½ out |
| Thursday, September 18 |
| » Lost to Rangers (71-75), 10-6 | Arlington Stadium (4-3) | 74-74 | |
| » W: Danny Darwin (12-3) L: Steve McCatty (12-14) S: John Henry Johnson (4) | Second | 17½ out |
| Friday, September 19 |
| » Lost to Royals (92-56), 13-3 | Royals Stadium (1-4) | 74-75 | Lost 2 |
| » W: Paul Splittorff (13-10) L: Brian Kingman (7-19) | Second | 18½ out |
| Saturday, September 20 |
| » Defeated Royals (92-57), 9-0 | Royals Stadium (2-4) | 75-75 | |
| » W: Matt Keough (16-13) L: Mike Jones (0-1) | Second | 17½ out |
| » Major-league debuts: Ken Phelps (Royals) |
| Sunday, September 21 |
| » Defeated Royals (92-58), 9-3 | Royals Stadium (3-4) | 76-75 | Won 2 |
| » W: Mike Norris (21-8) L: Dennis Leonard (19-10) | Second | 16½ out |
| Tuesday, September 23 |
| » Defeated White Sox (62-87), 6-4 | Oakland-Alameda County Stadium (43-33) | 77-75 | Won 3 |
| » W: Rick Langford (18-11) L: Mike Proly (4-10) | Second | 15 out |
| Wednesday, September 24 |
| » Defeated White Sox (62-88), 7-1 | Oakland-Alameda County Stadium (44-33) | 78-75 | Won 4 |
| » W: Steve McCatty (13-14) L: Steve Trout (8-15) | Second | 14 out |
| Thursday, September 25 |
| » Lost to White Sox (63-88), 6-4 | Oakland-Alameda County Stadium (44-34) | 78-76 | |
| » W: Mike Proly (5-10) L: Brian Kingman (7-20) S: Ed Farmer (28) | Second | 14½ out |
| Friday, September 26 |
| » Lost to Brewers (83-72), 10-7 | Oakland-Alameda County Stadium (44-35) | 78-77 | Lost 2 |
| » W: Reggie Cleveland (10-8) L: Mike Norris (21-9) S: Bob McClure (10) | Second | 14½ out |
| Saturday, September 27 |