| Monday, April 4 |
| » Defeated Orioles (0-1), 12-0 | Memorial Stadium (1-0) | 1-0 | |
| » W: Teddy Higuera (1-0) L: Mike Boddicker (0-1) | First | -- |
| » Major-league debuts: Oswaldo Peraza (Orioles) Joey Meyer (Brewers) |
| Wednesday, April 6 |
| » Defeated Orioles (0-2), 3-1 | Memorial Stadium (2-0) | 2-0 | Won 2 |
| » W: Chris Bosio (1-0) L: Mike Morgan (0-1) | First | -- |
| Friday, April 8 |
| » Lost to Yankees (3-0), 6-4 | Yankee Stadium (0-1) | 2-1 | |
| » W: Richard Dotson (1-0) L: Juan Nieves (0-1) S: Dave Righetti (2) | Third | 1 out |
| Saturday, April 9 |
| » Lost to Yankees (4-0), 4-1 | Yankee Stadium (0-2) | 2-2 | Lost 2 |
| » W: Al Leiter (1-0) L: Bill Wegman (0-1) S: Dave Righetti (3) | Fourth | 2 out |
| Sunday, April 10 |
| » Lost to Yankees (5-0), 7-6 | Yankee Stadium (0-3) | 2-3 | Lost 3 |
| » W: Tim Stoddard (1-0) L: Chuck Crim (0-1) S: Cecilio Guante (1) | Fourth | 3 out |
| Tuesday, April 12 |
| » Lost to Red Sox (4-3), 3-1 | Fenway Park (0-1) | 2-4 | Lost 4 |
| » W: Bruce Hurst (1-0) L: Chris Bosio (1-1) S: Lee Smith (3) | Fifth | 3½ out |
| Wednesday, April 13 |
| » Lost to Red Sox (5-3), 6-3 | Fenway Park (0-2) | 2-5 | Lost 5 |
| » W: Oil Can Boyd (2-0) L: Juan Nieves (0-2) S: Lee Smith (4) | Sixth | 4½ out |
| Thursday, April 14 |
| » Lost to Red Sox (6-3), 2-0 | Fenway Park (0-3) | 2-6 | Lost 6 |
| » W: Roger Clemens (2-0) L: Bill Wegman (0-2) | Sixth | 5½ out |
| Friday, April 15 |
| » Lost to Yankees (9-1), 7-1 | County Stadium (0-1) | 2-7 | Lost 7 |
| » W: Tommy John (1-0) L: Mike Birkbeck (0-1) | Sixth | 6½ out |
| Saturday, April 16 |
| » Defeated Yankees (9-2), 9-2 | County Stadium (1-1) | 3-7 | |
| » W: Chris Bosio (2-1) L: Rick Rhoden (1-2) | Sixth | 6 out |
| Sunday, April 17 |
| » Defeated Yankees (9-3), 6-3 | County Stadium (2-1) | 4-7 | Won 2 |
| » W: Teddy Higuera (2-0) L: John Candelaria (1-1) S: Dan Plesac (1) | Sixth | 6 out |
| Tuesday, April 19 |
| » Defeated Orioles (0-13), 9-5 | County Stadium (3-1) | 5-7 | Won 3 |
| » W: Juan Nieves (1-2) L: Mark Thurmond (0-3) S: Chuck Crim (1) | Fifth | 5 out |
| Wednesday, April 20 |
| » Defeated Orioles (0-14), 8-6 | County Stadium (4-1) | 6-7 | Won 4 |
| » W: Bill Wegman (1-2) L: Mike Boddicker (0-4) S: Dan Plesac (2) | Fifth | 5 out |
| Thursday, April 21 |
| » Defeated Orioles (0-15), 7-1 | County Stadium (5-1) | 7-7 | Won 5 |
| » W: Chris Bosio (3-1) L: Scott McGregor (0-3) | Fourth | 4½ out |
| Sunday, April 24 |
| » Lost to Red Sox (11-5), 4-0 | County Stadium (5-2) | 7-8 | |
| » W: Roger Clemens (4-0) L: Teddy Higuera (2-1) | Sixth | 5½ out |
| Monday, April 25 |
| » Lost to Red Sox (12-5), 5-1 | County Stadium (5-3) | 7-9 | Lost 2 |
| » W: Bruce Hurst (3-0) L: Bill Wegman (1-3) | Sixth | 6 out |
| Tuesday, April 26 |
| » Lost to Rangers (8-10), 3-1 | Arlington Stadium (0-1) | 7-10 | Lost 3 |
| » W: Jose Guzman (3-1) L: Chris Bosio (3-2) | Sixth | 7 out |
| Wednesday, April 27 |
| » Defeated Rangers (8-11), 4-3 | Arlington Stadium (1-1) | 8-10 | |
| » W: Juan Nieves (2-2) L: Paul Kilgus (2-2) S: Dan Plesac (3) | Sixth | 7 out |
| Friday, April 29 |
| » Lost to Royals (12-9), 7-2 | County Stadium (5-4) | 8-11 | |
| » W: Bret Saberhagen (3-2) L: Mike Birkbeck (0-2) | Sixth | 7 out |
| Saturday, April 30 |
| » Defeated Royals (12-10), 4-1 | County Stadium (6-4) | 9-11 | |
| » W: Bill Wegman (2-3) L: Charlie Leibrandt (1-5) S: Dan Plesac (4) | Fifth | 6 out |
| Sunday, May 1 |
| » Defeated Royals (12-11), 10-6 | County Stadium (7-4) | 10-11 | Won 2 |
| » W: Chris Bosio (4-2) L: Mark Gubicza (3-2) S: Dan Plesac (5) | Fifth | 5 out |
| Monday, May 2 |
| » Defeated Twins (9-14), 4-3 | County Stadium (8-4) | 11-11 | Won 3 |
| » W: Juan Nieves (3-2) L: Bert Blyleven (1-3) S: Odell Jones (1) | Fifth | 5 out |
| Tuesday, May 3 |
| » Defeated Twins (9-15), 4-3 | County Stadium (9-4) | 12-11 | Won 4 |
| » W: Teddy Higuera (3-1) L: Allan Anderson (1-1) | Fifth | 4½ out |
| Wednesday, May 4 |
| » Defeated Rangers (10-15), 6-5 | County Stadium (10-4) | 13-11 | Won 5 |
| » W: Mike Birkbeck (1-2) L: Charlie Hough (3-4) S: Dan Plesac (6) | Fifth | 4½ out |
| Thursday, May 5 |
| » Defeated Rangers (10-16), 9-1 | County Stadium (11-4) | 14-11 | Won 6 |
| » W: Bill Wegman (3-3) L: Bobby Witt (0-5) | Fifth | 4½ out |
| Friday, May 6 |
| » Defeated Royals (14-14), 4-0 | Royals Stadium (1-0) | 15-11 | Won 7 |
| » W: Chris Bosio (5-2) L: Floyd Bannister (4-2) | Third | 3½ out |
| Saturday, May 7 |
| » Defeated Royals (14-15), 4-2 | Royals Stadium (2-0) | 16-11 | Won 8 |
| » W: Juan Nieves (4-2) L: Bret Saberhagen (4-3) S: Dan Plesac (7) | Third | 2½ out |
| Sunday, May 8 |
| » Defeated Royals (14-16), 6-2 | Royals Stadium (3-0) | 17-11 | Won 9 |
| » W: Dan Plesac (1-0) L: Dan Quisenberry (0-1) | Third | 1½ out |
| Monday, May 9 |
| » Defeated Twins (11-18), 9-6 | Hubert H. Humphrey Metrodome (1-0) | 18-11 | Won 10 |
| » W: Odell Jones (1-0) L: Jeff Reardon (0-2) S: Chuck Crim (2) | Second | 1 out |
| Tuesday, May 10 |
| » Lost to Twins (12-18), 9-3 | Hubert H. Humphrey Metrodome (1-1) | 18-12 | |
| » W: Frank Viola (5-1) L: Bill Wegman (3-4) | Third | 2 out |
| Wednesday, May 11 |
| » Lost to Twins (13-18), 2-1 | Hubert H. Humphrey Metrodome (1-2) | 18-13 | Lost 2 |
| » W: Keith Atherton (1-1) L: Chris Bosio (5-3) S: Jeff Reardon (6) | Fourth | 3 out |
| Thursday, May 12 |
| » Lost to Indians (20-13), 3-1 | County Stadium (11-5) | 18-14 | Lost 3 |
| » W: Tom Candiotti (5-1) L: Chuck Crim (0-2) | Fifth | 3½ out |
| Friday, May 13 |
| » Lost to Indians (21-13), 4-3 | County Stadium (11-6) | 18-15 | Lost 4 |
| » W: Greg Swindell (7-1) L: Teddy Higuera (3-2) S: Doug Jones (5) | Fifth | 3½ out |
| Saturday, May 14 |
| » Lost to Indians (22-13), 6-4 | County Stadium (11-7) | 18-16 | Lost 5 |
| » W: John Farrell (4-2) L: Mike Birkbeck (1-3) S: Bill Laskey (1) | Fifth | 4½ out |
| Sunday, May 15 |
| » Defeated Indians (22-14), 9-5 | County Stadium (12-7) | 19-16 | |
| » W: Bill Wegman (4-4) L: Scott Bailes (2-4) S: Paul Mirabella (1) | Fifth | 4½ out |
| Monday, May 16 |
| » Defeated Tigers (21-15), 3-1 | County Stadium (13-7) | 20-16 | Won 2 |
| » W: Chris Bosio (6-3) L: Walt Terrell (1-1) S: Dan Plesac (8) | Fifth | 4½ out |
| Tuesday, May 17 |
| » Lost to Tigers (22-15), 8-4 | County Stadium (13-8) | 20-17 | |
| » W: Paul Gibson (2-1) L: Juan Nieves (4-3) | Fifth | 4½ out |
| Wednesday, May 18 |
| » Lost to Tigers (23-15), 3-1 | County Stadium (13-9) | 20-18 | Lost 2 |
| » W: Doyle Alexander (4-2) L: Teddy Higuera (3-3) | Fifth | 5 out |
| Friday, May 20 |
| » Lost to Blue Jays (17-23), 3-1 | County Stadium (13-10) | 20-19 | Lost 3 |
| » W: Jim Clancy (2-4) L: Bill Wegman (4-5) S: David Wells (2) | Fifth | 5 out |
| Saturday, May 21 |
| » Lost to Blue Jays (18-23), 4-0 | County Stadium (13-11) | 20-20 | Lost 4 |
| » W: Dave Stieb (6-3) L: Chris Bosio (6-4) S: Tom Henke (8) | Fifth | 6 out |
| Sunday, May 22 |
| » Defeated Blue Jays (18-24), 7-1 | County Stadium (14-11) | 21-20 | |
| » W: Mike Birkbeck (2-3) L: Mike Flanagan (4-3) | Fifth | 6 out |
| Monday, May 23 |
| » Defeated Blue Jays (18-25), 9-7 | County Stadium (15-11) | 22-20 | Won 2 |
| » W: Odell Jones (2-0) L: Todd Stottlemyre (1-6) S: Dan Plesac (9) | Fifth | 6 out |
| Tuesday, May 24 |
| » Defeated Tigers (26-16), 7-0 | Tiger Stadium (1-0) | 23-20 | Won 3 |
| » W: Tom Filer (1-0) L: Doyle Alexander (4-3) | Fifth | 6 out |
| Wednesday, May 25 |
| » Lost to Tigers (27-16), 4-3 | Tiger Stadium (1-1) | 23-21 | |
| » W: Jeff Robinson (5-2) L: Juan Nieves (4-4) S: Willie Hernandez (2) | Fifth | 7 out |
| Thursday, May 26 |
| » Lost to Tigers (28-16), 4-3 | Tiger Stadium (1-2) | 23-22 | Lost 2 |
| » W: Frank Tanana (8-2) L: Chris Bosio (6-5) S: Eric King (1) | Fifth | 7½ out |
| Friday, May 27 |
| » Lost to Indians (30-16), 6-3 | Cleveland Stadium (0-1) | 23-23 | Lost 3 |
| » W: Scott Bailes (4-4) L: Mike Birkbeck (2-4) S: Doug Jones (10) | Fifth | 8½ out |
| Saturday, May 28 |
| » Defeated Indians (30-17), 2-0 | Cleveland Stadium (1-1) | 24-23 | |
| » W: Odell Jones (3-0) L: Rich Yett (3-3) S: Dan Plesac (10) | Fifth | 7½ out |
| Sunday, May 29 |
| » Defeated Indians (30-18), 7-2 | Cleveland Stadium (2-1) | 25-23 | Won 2 |
| » W: Tom Filer (2-0) L: Tom Candiotti (6-3) | Fourth | 7½ out |
| Monday, May 30 |
| » Defeated Blue Jays (21-29), 4-1 | Exhibition Stadium (1-0) | 26-23 | Won 3 |
| » W: Teddy Higuera (4-3) L: Jim Clancy (2-6) S: Dan Plesac (11) | Fourth | 6½ out |
| Tuesday, May 31 |
| » Lost to Blue Jays (22-29), 9-0 | Exhibition Stadium (1-1) | 26-24 | |
| » W: Dave Stieb (7-3) L: Chris Bosio (6-6) | Fifth | 7½ out |
| Wednesday, June 1 |
| » Lost to Blue Jays (23-29), 7-2 | Exhibition Stadium (1-2) | 26-25 | Lost 2 |
| » W: Mike Flanagan (5-3) L: Mike Birkbeck (2-5) S: Duane Ward (3) | Fifth | 7½ out |
| Thursday, June 2 |
| » Defeated Angels (19-33), 9-4 | County Stadium (16-11) | 27-25 | |
| » W: Don August (1-0) L: Chuck Finley (3-7) S: Dan Plesac (12) | Fifth | 7 out |
| » Major-league debuts: Don August (Brewers) |
| Friday, June 3 |
| » Defeated Angels (19-34), 8-2 | County Stadium (17-11) | 28-25 | Won 2 |
| » W: Tom Filer (3-0) L: Mike Witt (2-7) | Fourth | 7 out |
| » Major-league debuts: Darryl Hamilton (Brewers) |
| Saturday, June 4 |
| » Defeated Angels (19-35), 1-0 | County Stadium (18-11) | 29-25 | Won 3 |
| » W: Teddy Higuera (5-3) L: Dan Petry (2-5) | Fourth | 6 out |
| » Major-league debuts: Joe Redfield (Angels) |
| Sunday, June 5 |
| » Lost to Angels (20-35), 6-5 | County Stadium (18-12) | 29-26 | |
| » W: De Wayne Buice (2-3) L: Chuck Crim (0-3) | Fourth | 7 out |
| Monday, June 6 |
| » Lost to Mariners (24-33), 2-0 | Kingdome (0-1) | 29-27 | Lost 2 |
| » W: Scott Bankhead (1-2) L: Don August (1-1) S: Mike Moore (1) | Fourth | 7 out |
| Tuesday, June 7 |
| » Lost to Mariners (25-33), 5-4 | Kingdome (0-2) | 29-28 | Lost 3 |
| » W: Mike Moore (3-6) L: Paul Mirabella (0-1) | Fourth | 8 out |
| Wednesday, June 8 |
| » Defeated Mariners (25-34), 8-7 | Kingdome (1-2) | 30-28 | |
| » W: Mark Clear (1-0) L: Mike Jackson (2-2) S: Dan Plesac (13) | Fourth | 7 out |
| Friday, June 10 |
| » Lost to White Sox (25-32), 1-0 | Comiskey Park I (0-1) | 30-29 | |
| » W: Bill Long (2-2) L: Teddy Higuera (5-4) | Fourth | 7 out |
| Saturday, June 11 |
| » Lost to White Sox (26-32), 5-3 | Comiskey Park I (0-2) | 30-30 | Lost 2 |
| » W: Jerry Reuss (5-2) L: Paul Mirabella (0-2) S: Bobby Thigpen (11) | Fourth | 8 out |
| Sunday, June 12 |
| » Defeated White Sox (26-33), 16-2 | Comiskey Park I (1-2) | 31-30 | |
| » W: Don August (2-1) L: Joel Davis (0-1) | Fourth | 8 out |
| Monday, June 13 |
| » Defeated Mariners (26-38), 3-1 | County Stadium (19-12) | 32-30 | Won 2 |
| » W: Bill Wegman (5-5) L: Mike Campbell (3-8) S: Dan Plesac (14) | Fourth | 8 out |
| Tuesday, June 14 |
| » Defeated Mariners (26-39), 5-1 | County Stadium (20-12) | 33-30 | Won 3 |
| » W: Tom Filer (4-0) L: Mike Moore (3-7) | Fourth | 7 out |
| Wednesday, June 15 |
| » Defeated Mariners (26-40), 5-1 | County Stadium (21-12) | 34-30 | Won 4 |
| » W: Teddy Higuera (6-4) L: Mark Langston (5-7) S: Dan Plesac (15) | Fourth | 6 out |
| Thursday, June 16 |
| » Lost to White Sox (28-35), 3-1 | County Stadium (21-13) | 34-31 | |
| » W: Jerry Reuss (6-2) L: Chris Bosio (6-7) S: Bobby Thigpen (13) | Fourth | 6½ out |
| Friday, June 17 |
| » Defeated White Sox (28-36), 7-2 | County Stadium (22-13) | 35-31 | |
| » W: Don August (3-1) L: Bill Long (2-3) S: Chuck Crim (3) | Fourth | 5½ out |
| Saturday, June 18 |
| » Defeated White Sox (28-37), 6-3 | County Stadium (23-13) | 36-31 | Won 2 |
| » W: Bill Wegman (6-5) L: Melido Perez (6-3) S: Dan Plesac (16) | Fourth | 5½ out |
| Sunday, June 19 |
| » Lost to White Sox (29-37), 5-0 | County Stadium (23-14) | 36-32 | |
| » W: Dave LaPoint (5-7) L: Tom Filer (4-1) | Fourth | 5½ out |
| Monday, June 20 |
| » Lost to Athletics (43-25), 5-4 | County Stadium (23-15) | 36-33 | Lost 2 |
| » W: Eric Plunk (5-1) L: Chuck Crim (0-4) S: Dennis Eckersley (21) | Fourth | 6 out |
| Tuesday, June 21 |
| » Lost to Athletics (44-25), 4-2 | County Stadium (23-16) | 36-34 | Lost 3 |
| » W: Curt Young (5-4) L: Chris Bosio (6-8) S: Dennis Eckersley (22) | Fifth | 7 out |
| Wednesday, June 22 |
| » Lost to Athletics (45-25), 6-2 | County Stadium (23-17) | 36-35 | Lost 4 |
| » W: Dave Stewart (10-5) L: Don August (3-2) | Fourth | 8 out |
| Friday, June 24 |
| » Defeated Angels (30-42), 5-4 | Anaheim Stadium (1-0) | 37-35 | |
| » W: Paul Mirabella (1-2) L: Bryan Harvey (2-2) S: Chuck Crim (4) | Fourth | 7 out |
| Saturday, June 25 |
| » Lost to Angels (31-42), 7-3 | Anaheim Stadium (1-1) | 37-36 | |
| » W: Mike Witt (6-7) L: Tom Filer (4-2) | Fourth | 8 out |
| Sunday, June 26 |
| » Lost to Angels (32-42), 4-2 | Anaheim Stadium (1-2) | 37-37 | Lost 2 |
| » W: Willie Fraser (5-7) L: Teddy Higuera (6-5) S: Bryan Harvey (7) | Fifth | 8 out |
| Monday, June 27 |
| » Lost to Athletics (47-28), 5-4 | Oakland-Alameda County Stadium (0-1) | 37-38 | Lost 3 |
| » W: Dennis Eckersley (2-1) L: Dan Plesac (1-1) | Sixth | 9 out |
| Tuesday, June 28 |
| » Defeated Athletics (47-29), 4-1 | Oakland-Alameda County Stadium (1-1) | 38-38 | |
| » W: Don August (4-2) L: Storm Davis (5-4) | Fifth | 9 out |
| Wednesday, June 29 |
| » Lost to Athletics (48-29), 7-2 | Oakland-Alameda County Stadium (1-2) | 38-39 | |
| » W: Bob Welch (10-4) L: Bill Wegman (6-6) | Fifth | 9 out |
| Friday, July 1 |
| » Lost to Twins (43-33), 5-4 | County Stadium (23-18) | 38-40 | Lost 2 |
| » W: Frank Viola (13-2) L: Tom Filer (4-3) S: Jeff Reardon (21) | Sixth | 10 out |
| Saturday, July 2 |
| » Lost to Twins (44-33), 8-2 | County Stadium (23-19) | 38-41 | Lost 3 |
| » W: Charlie Lea (5-3) L: Chris Bosio (6-9) | Fifth | 11 out |
| Sunday, July 3 |
| » Defeated Twins (44-34), 4-3 | County Stadium (24-19) | 39-41 | |
| » W: Bill Wegman (7-6) L: Keith Atherton (5-3) S: Dan Plesac (17) | Fifth | 10 out |
| Monday, July 4 |
| » Lost to Twins (45-34), 3-1 | County Stadium (24-20) | 39-42 | |
| » W: Allan Anderson (5-6) L: Don August (4-3) S: Jeff Reardon (22) | Fifth | 11 out |
| Tuesday, July 5 |
| » Defeated Royals (43-39), 3-1 | Royals Stadium (4-0) | 40-42 | |
| » W: Mike Birkbeck (3-5) L: Floyd Bannister (8-7) S: Dan Plesac (18) | Fifth | 10 out |
| Wednesday, July 6 |
| » Defeated Royals (43-40), 4-2 | Royals Stadium (5-0) | 41-42 | Won 2 |
| » W: Tom Filer (5-3) L: Bret Saberhagen (10-7) S: Dan Plesac (19) | Fifth | 10 out |
| Thursday, July 7 |
| » Lost to Royals (44-40), 7-3 | Royals Stadium (5-1) | 41-43 | |
| » W: Charlie Leibrandt (5-10) L: Chris Bosio (6-10) | Fifth | 11 out |
| Friday, July 8 |
| » Defeated Twins (47-36), 5-3 | Hubert H. Humphrey Metrodome (2-2) | 42-43 | |
| » W: Bill Wegman (8-6) L: Bert Blyleven (7-7) S: Dan Plesac (20) | Fifth | 10 out |
| Saturday, July 9 |
| » Defeated Twins (47-37), 5-4 | Hubert H. Humphrey Metrodome (3-2) | 43-43 | Won 2 |
| » W: Chuck Crim (1-4) L: Jeff Reardon (0-3) S: Dan Plesac (21) | Fifth | 10 out |
| Sunday, July 10 |
| » Defeated Twins (47-38), 3-2 | Hubert H. Humphrey Metrodome (4-2) | 44-43 | Won 3 |
| » W: Chuck Crim (2-4) L: Keith Atherton (5-4) S: Dan Plesac (22) | Fourth | 9 out |
| Thursday, July 14 |
| » Defeated Rangers (40-47), 6-2 | Arlington Stadium (2-1) | 45-43 | Won 4 |
| » W: Bill Wegman (9-6) L: Charlie Hough (8-10) S: Chuck Crim (5) | Third | 8 out |
| Friday, July 15 |
| » Defeated Rangers (40-48), 4-2 | Arlington Stadium (3-1) | 46-43 | Won 5 |
| » W: Teddy Higuera (7-5) L: Jose Guzman (9-7) S: Dan Plesac (23) | Third | 7 out |
| Saturday, July 16 |
| » Defeated Rangers (40-49), 4-3 | Arlington Stadium (4-1) | 47-43 | Won 6 |
| » W: Odell Jones (4-0) L: Jeff Russell (8-3) S: Dan Plesac (24) | Fourth | 7 out |
| Sunday, July 17 |
| » Lost to Rangers (41-49), 3-0 | Arlington Stadium (4-2) | 47-44 | |
| » W: Bobby Witt (1-6) L: Chris Bosio (6-11) | Fourth | 7 out |
| Monday, July 18 |
| » Defeated Royals (46-46), 6-1 | County Stadium (25-20) | 48-44 | |
| » W: Mike Birkbeck (4-5) L: Floyd Bannister (8-8) | Fourth | 7 out |
| Tuesday, July 19 |
| » Defeated Royals (46-47), 3-1 | County Stadium (26-20) | 49-44 | Won 2 |
| » W: Bill Wegman (10-6) L: Bret Saberhagen (10-9) S: Dan Plesac (25) | Fourth | 6 out |
| Wednesday, July 20 |
| » Lost to Royals (47-47), 4-0 | County Stadium (26-21) | 49-45 | |
| » W: Jeff Montgomery (3-1) L: Tom Filer (5-4) | Fourth | 7 out |
| Thursday, July 21 |
| » Defeated Rangers (42-51), 6-1 | County Stadium (27-21) | 50-45 | |
| » W: Don August (5-3) L: Jose Guzman (9-8) | Fourth | 6½ out |
| Friday, July 22 |
| » Defeated Rangers (42-52), 2-1 | County Stadium (28-21) | 51-45 | Won 2 |
| » W: Chuck Crim (3-4) L: Mitch Williams (1-3) | Fourth | 5½ out |
| Saturday, July 23 |
| » Lost to Rangers (43-52), 7-4 | County Stadium (28-22) | 51-46 | |
| » W: Bobby Witt (2-6) L: Chuck Crim (3-5) | Fourth | 5½ out |
| Sunday, July 24 |
| » Lost to Rangers (44-52), 6-4 | County Stadium (28-23) | 51-47 | Lost 2 |
| » W: Paul Kilgus (8-9) L: Bill Wegman (10-7) S: Mitch Williams (13) | Third | 5½ out |
| Monday, July 25 |
| » Lost to Yankees (56-40), 3-2 | Yankee Stadium (0-4) | 51-48 | Lost 3 |
| » W: John Candelaria (11-6) L: Teddy Higuera (7-6) | Fourth | 6½ out |
| Tuesday, July 26 |
| » Lost to Yankees (57-40), 3-2 | Yankee Stadium (0-5) | 51-49 | Lost 4 |
| » W: Rick Rhoden (6-6) L: Don August (5-4) S: Dave Righetti (14) | Fourth | 7½ out |
| Wednesday, July 27 |
| » Lost to Yankees (58-40), 16-3 | Yankee Stadium (0-6) | 51-50 | Lost 5 |
| » W: Tommy John (8-3) L: Chris Bosio (6-12) | Fourth | 8½ out |
| Thursday, July 28 |
| » Defeated Yankees (58-41), 6-1 | Yankee Stadium (1-6) | 52-50 | |
| » W: Mike Birkbeck (5-5) L: Ron Guidry (1-2) S: Chuck Crim (6) | Fourth | 8 out |
| Friday, July 29 |
| » Lost to Red Sox (57-43), 6-4 | Fenway Park (0-4) | 52-51 | |
| » W: Bruce Hurst (11-4) L: Bill Wegman (10-8) S: Lee Smith (17) | Fifth | 9 out |
| » Lost to Red Sox (58-43), 5-4 | Fenway Park (0-5) | 52-52 | Lost 2 |
| » W: Dennis Lamp (5-3) L: Chris Bosio (6-13) S: Bob Stanley (3) | Fifth | 9 out |
| Saturday, July 30 |
| » Lost to Red Sox (59-43), 3-2 | Fenway Park (0-6) | 52-53 | Lost 3 |
| » W: Roger Clemens (15-5) L: Teddy Higuera (7-7) | Fifth | 10 out |
| Sunday, July 31 |
| » Lost to Red Sox (60-43), 5-0 | Fenway Park (0-7) | 52-54 | Lost 4 |
| » W: Mike Boddicker (7-12) L: Don August (5-5) | Fifth | 11 out |
| Tuesday, August 2 |
| » Defeated Yankees (60-43), 11-5 | County Stadium (29-23) | 53-54 | |
| » W: Mike Birkbeck (6-5) L: Tommy John (8-4) | Fourth | 10½ out |
| Wednesday, August 3 |
| » Defeated Yankees (60-44), 6-5 | County Stadium (30-23) | 54-54 | Won 2 |
| » W: Chuck Crim (4-5) L: Dave Righetti (3-2) S: Dan Plesac (26) | Third | 9½ out |
| » Major-league debuts: Dave Eiland (Yankees) |
| Friday, August 5 |
| » Lost to Orioles (36-71), 4-1 | Memorial Stadium (2-1) | 54-55 | |
| » W: Jose Bautista (6-9) L: Teddy Higuera (7-8) | Fourth | 11 out |
| » Defeated Orioles (36-72), 3-1 | Memorial Stadium (3-1) | 55-55 | |
| » W: Don August (6-5) L: Mike Morgan (1-6) S: Dan Plesac (27) | Fourth | 11 out |
| Saturday, August 6 |
| » Lost to Orioles (37-72), 7-2 | Memorial Stadium (3-2) | 55-56 | |
| » W: Oswaldo Peraza (5-4) L: Tom Filer (5-5) | Fourth | 12 out |
| Sunday, August 7 |
| » Defeated Orioles (37-73), 7-2 | Memorial Stadium (4-2) | 56-56 | |
| » W: Mike Birkbeck (7-5) L: Jeff Ballard (5-10) | Fourth | 11 out |
| Monday, August 8 |
| » Major-league debuts: Rick Reed (Pirates) |
| Tuesday, August 9 |
| » Defeated Red Sox (63-48), 3-2 | County Stadium (31-23) | 57-56 | Won 2 |
| » W: Chuck Crim (5-5) L: Roger Clemens (15-7) | Fourth | 11 out |
| » Lost to Red Sox (64-48), 5-1 | County Stadium (31-24) | 57-57 | |
| » W: Mike Boddicker (8-13) L: Bill Wegman (10-9) S: Bob Stanley (4) | Fourth | 11 out |
| Wednesday, August 10 |
| » Defeated Red Sox (64-49), 8-3 | County Stadium (32-24) | 58-57 | |
| » W: Teddy Higuera (8-8) L: Mike Smithson (6-4) | Fourth | 11 out |
| Thursday, August 11 |
| » Defeated Red Sox (64-50), 4-0 | County Stadium (33-24) | 59-57 | Won 2 |
| » W: Don August (7-5) L: Wes Gardner (5-3) | Fourth | 10½ out |
| Friday, August 12 |
| » Defeated Orioles (37-77), 8-3 | County Stadium (34-24) | 60-57 | Won 3 |
| » W: Mike Birkbeck (8-5) L: Oswaldo Peraza (5-5) | Fourth | 9½ out |
| Saturday, August 13 |
| » Lost to Orioles (38-77), 5-0 | County Stadium (34-25) | 60-58 | |
| » W: Jeff Ballard (6-10) L: Tom Filer (5-6) | Fourth | 9½ out |
| Sunday, August 14 |
| » Lost to Orioles (39-77), 11-9 | County Stadium (34-26) | 60-59 | Lost 2 |
| » W: Dave Schmidt (5-3) L: Juan Nieves (4-5) S: Mark Thurmond (2) | Fourth | 10½ out |
| Monday, August 15 |
| » Defeated Orioles (39-78), 4-1 | County Stadium (35-26) | 61-59 | |
| » W: Teddy Higuera (9-8) L: Jose Bautista (6-11) S: Dan Plesac (28) | Fourth | 9½ out |
| Tuesday, August 16 |
| » Lost to Indians (56-63), 6-5 | Cleveland Stadium (2-2) | 61-60 | |
| » W: Scott Bailes (8-11) L: Chuck Crim (5-6) | Fourth | 9½ out |
| Wednesday, August 17 |
| » Lost to Indians (57-63), 11-7 | Cleveland Stadium (2-3) | 61-61 | Lost 2 |
| » W: John Farrell (13-7) L: Mike Birkbeck (8-6) | Fourth | 9½ out |
| Thursday, August 18 |
| » Lost to Indians (58-63), 4-3 | Cleveland Stadium (2-4) | 61-62 | Lost 3 |
| » W: Rich Yett (7-4) L: Bill Wegman (10-10) S: Doug Jones (27) | Fifth | 10½ out |
| Friday, August 19 |
| » Defeated Blue Jays (60-62), 7-4 | Exhibition Stadium (2-2) | 62-62 | |
| » W: Juan Nieves (5-5) L: Duane Ward (8-2) S: Dan Plesac (29) | Fourth | 10½ out |
| Saturday, August 20 |
| » Defeated Blue Jays (60-63), 8-1 | Exhibition Stadium (3-2) | 63-62 | Won 2 |
| » W: Teddy Higuera (10-8) L: Mike Flanagan (11-10) | Fourth | 10½ out |
| Sunday, August 21 |
| » Lost to Blue Jays (61-63), 8-4 | Exhibition Stadium (3-3) | 63-63 | |
| » W: Jimmy Key (8-3) L: Don August (7-6) | Fourth | 11½ out |
| Monday, August 22 |
| » Defeated Indians (59-66), 7-3 | County Stadium (36-26) | 64-63 | |
| » W: Mike Birkbeck (9-6) L: John Farrell (13-8) S: Chuck Crim (7) | Fourth | 10½ out |
| Tuesday, August 23 |
| » Lost to Indians (60-66), 6-2 | County Stadium (36-27) | 64-64 | |
| » W: Rich Yett (8-4) L: Bill Wegman (10-11) | Fifth | 10½ out |
| Wednesday, August 24 |
| » Lost to Indians (61-66), 7-2 | County Stadium (36-28) | 64-65 | Lost 2 |
| » W: Tom Candiotti (10-8) L: Tom Filer (5-7) S: Doug Jones (29) | Fifth | 10½ out |
| Thursday, August 25 |
| » Defeated Yankees (68-57), 4-1 | County Stadium (37-28) | 65-65 | |
| » W: Teddy Higuera (11-8) L: Richard Dotson (9-7) | Fourth | 10 out |
| Friday, August 26 |
| » Lost to Tigers (74-53), 3-2 | County Stadium (37-29) | 65-66 | |
| » W: Mike Henneman (7-3) L: Chris Bosio (6-14) S: Willie Hernandez (8) | Fourth | 11 out |
| Saturday, August 27 |
| » Defeated Tigers (74-54), 6-5 | County Stadium (38-29) | 66-66 | |
| » W: Chuck Crim (6-6) L: Paul Gibson (3-2) | Fourth | 10 out |
| Sunday, August 28 |
| » Defeated Tigers (74-55), 12-10 | County Stadium (39-29) | 67-66 | Won 2 |
| » W: Odell Jones (5-0) L: Mike Henneman (7-4) S: Chris Bosio (1) | Fourth | 9 out |
| Monday, August 29 |
| » Lost to Blue Jays (65-66), 6-1 | County Stadium (39-30) | 67-67 | |
| » W: Jim Clancy (8-13) L: Tom Filer (5-8) | Fourth | 9 out |
| Tuesday, August 30 |
| » Defeated Blue Jays (65-67), 6-2 | County Stadium (40-30) | 68-67 | |
| » W: Teddy Higuera (12-8) L: Jeff Musselman (5-3) | Fourth | 8 out |
| Wednesday, August 31 |
| » Defeated Blue Jays (65-68), 4-2 | County Stadium (41-30) | 69-67 | Won 2 |
| » W: Don August (8-6) L: Mike Flanagan (11-12) S: Chuck Crim (8) | Fourth | 8 out |
| Thursday, September 1 |
| » Defeated Tigers (75-58), 6-2 | Tiger Stadium (2-2) | 70-67 | Won 3 |
| » W: Mike Birkbeck (10-6) L: Doyle Alexander (11-10) S: Chris Bosio (2) | Fourth | 7 out |
| Friday, September 2 |
| » Defeated Tigers (75-59), 5-0 | Tiger Stadium (3-2) | 71-67 | Won 4 |
| » W: Bill Wegman (11-11) L: Frank Tanana (14-9) | Fourth | 6 out |
| Saturday, September 3 |
| » Defeated Tigers (75-60), 7-3 | Tiger Stadium (4-2) | 72-67 | Won 5 |
| » W: Paul Mirabella (2-2) L: Steve Searcy (0-2) | Fourth | 5 out |
| » Major-league debuts: Gary Sheffield (Brewers) |
| Sunday, September 4 |
| » Defeated Tigers (75-61), 6-1 | Tiger Stadium (5-2) | 73-67 | Won 6 |
| » W: Teddy Higuera (13-8) L: Walt Terrell (7-12) | Third | 4 out |
| Monday, September 5 |
| » Defeated White Sox (59-78), 5-2 | County Stadium (42-30) | 74-67 | Won 7 |
| » W: Don August (9-6) L: Shawn Hillegas (3-5) S: Juan Nieves (1) | Fourth | 4 out |
| Wednesday, September 7 |
| » Lost to White Sox (60-78), 7-2 | County Stadium (42-31) | 74-68 | |
| » W: Jerry Reuss (11-8) L: Mike Birkbeck (10-7) S: Bobby Thigpen (30) | Third | 4½ out |
| Friday, September 9 |
| » Defeated Mariners (57-84), 2-1 | County Stadium (43-31) | 75-68 | |
| » W: Chris Bosio (7-14) L: Mark Langston (11-11) | Fourth | 4½ out |
| Saturday, September 10 |
| » Lost to Mariners (58-84), 1-0 | County Stadium (43-32) | 75-69 | |
| » W: Erik Hanson (1-1) L: Teddy Higuera (13-9) S: Mike Schooler (12) | Fourth | 5½ out |
| Sunday, September 11 |
| » Defeated Mariners (58-85), 5-3 | County Stadium (44-32) | 76-69 | |
| » W: Don August (10-6) L: Mike Campbell (6-9) S: Dan Plesac (30) | Fourth | 4½ out |
| Monday, September 12 |
| » Lost to White Sox (62-80), 2-1 | Comiskey Park I (1-3) | 76-70 | |
| » W: Barry Jones (2-3) L: Dan Plesac (1-2) | Fourth | 5½ out |
| Tuesday, September 13 |
| » Defeated White Sox (62-81), 4-0 | Comiskey Park I (2-3) | 77-70 | |
| » W: Juan Nieves (6-5) L: Ken Patterson (0-2) | Fourth | 5½ out |
| Wednesday, September 14 |
| » Defeated White Sox (62-82), 4-2 | Comiskey Park I (3-3) | 78-70 | Won 2 |
| » W: Bill Wegman (12-11) L: Bill Long (7-11) S: Paul Mirabella (2) | Third | 5½ out |
| Friday, September 16 |
| » Defeated Mariners (60-87), 5-1 | Kingdome (2-2) | 79-70 | Won 3 |
| » W: Don August (11-6) L: Erik Hanson (1-2) | Fourth | 5 out |
| Saturday, September 17 |
| » Lost to Mariners (61-87), 11-0 | Kingdome (2-3) | 79-71 | |
| » W: Mike Moore (9-14) L: Mike Birkbeck (10-8) | Fourth | 6 out |
| Sunday, September 18 |
| » Defeated Mariners (61-88), 10-2 | Kingdome (3-3) | 80-71 | |
| » W: Juan Nieves (7-5) L: Mike Campbell (6-10) | Second | 6 out |
| Monday, September 19 |
| » Defeated Angels (75-76), 4-2 | Anaheim Stadium (2-2) | 81-71 | Won 2 |
| » W: Bill Wegman (13-11) L: Mike Witt (13-14) S: Chuck Crim (9) | Second | 5 out |
| Tuesday, September 20 |
| » Defeated Angels (75-77), 6-5 | Anaheim Stadium (3-2) | 82-71 | Won 3 |
| » W: Teddy Higuera (14-9) L: Greg Minton (4-5) S: Chris Bosio (3) | Second | 5 out |
| Wednesday, September 21 |
| » Defeated Angels (75-78), 10-3 | Anaheim Stadium (4-2) | 83-71 | Won 4 |
| » W: Don August (12-6) L: Willie Fraser (12-11) S: Paul Mirabella (3) | Second | 4 out |
| Friday, September 23 |
| » Lost to Athletics (99-55), 9-8 | County Stadium (44-33) | 83-72 | |
| » W: Gene Nelson (9-6) L: Chris Bosio (7-15) S: Todd Burns (1) | Second | 5 out |
| Saturday, September 24 |
| » Lost to Athletics (100-55), 5-2 | County Stadium (44-34) | 83-73 | Lost 2 |
| » W: Dave Stewart (20-12) L: Bill Wegman (13-12) S: Dennis Eckersley (44) | Third | 5 out |
| Sunday, September 25 |
| » Defeated Athletics (100-56), 4-2 | County Stadium (45-34) | 84-73 | |
| » W: Teddy Higuera (15-9) L: Storm Davis (16-6) S: Chris Bosio (4) | Third | 5 out |
| Tuesday, September 27 |
| » Defeated Angels (75-83), 6-5 | County Stadium (46-34) | 85-73 | Won 2 |
| » W: Don August (13-6) L: Willie Fraser (12-12) S: Chris Bosio (5) | Second | 3½ out |
| Wednesday, September 28 |
| » Defeated Angels (75-84), 4-3 | County Stadium (47-34) | 86-73 | Won 3 |
| » W: Chuck Crim (7-6) L: Sherman Corbett (2-1) S: Paul Mirabella (4) | Second | 2½ out |
| Friday, September 30 |
| » Lost to Athletics (103-57), 7-1 | Oakland-Alameda County Stadium (1-3) | 86-74 | |
| » W: Dave Stewart (21-12) L: Bill Wegman (13-13) | Second | 3 out |
| Saturday, October 1 |
| » Defeated Athletics (103-58), 8-3 | Oakland-Alameda County Stadium (2-3) | 87-74 | |
| » W: Teddy Higuera (16-9) L: Storm Davis (16-7) S: Chris Bosio (6) | Second | 2 out |
| Sunday, October 2 |
| » Lost to Athletics (104-58), 4-0 | Oakland-Alameda County Stadium (2-4) | 87-75 | |
| » W: Bob Welch (17-9) L: Don August (13-7) | Third | 2 out |
Game information provided by Retrosheet (www.retrosheet.org) |