| Saturday, February 17 |
| Former Mariner Larry Cox dies in Bellefontaine, OH at the age of 43. |
| Monday, April 9 |
| » Defeated Angels (0-1), 7-4 | Anaheim Stadium (1-0) | 1-0 | |
| » W: Brian Holman (1-0) L: Bert Blyleven (0-1) S: Mike Schooler (1) | First | -- |
| Tuesday, April 10 |
| » Lost to Angels (1-1), 7-0 | Anaheim Stadium (1-1) | 1-1 | |
| » W: Chuck Finley (1-0) L: Randy Johnson (0-1) S: Mark Eichhorn (1) | Second | 1 out |
| » Major-league debuts: Brent Knackert (Mariners) |
| Wednesday, April 11 |
| » Lost to Angels (2-1), 1-0 | Anaheim Stadium (1-2) | 1-2 | Lost 2 |
| » W: Mark Langston (1-0) L: Gary Eave (0-1) S: Mike Witt (1) | Fourth | 1½ out |
| Friday, April 13 |
| » Lost to Athletics (3-1), 15-7 | Kingdome (0-1) | 1-3 | Lost 3 |
| » W: Scott Sanderson (1-0) L: Scott Bankhead (0-1) | Sixth | 2 out |
| Saturday, April 14 |
| » Lost to Athletics (4-1), 5-2 | Kingdome (0-2) | 1-4 | Lost 4 |
| » W: Dave Stewart (2-0) L: Matt Young (0-1) S: Dennis Eckersley (2) | Seventh | 3 out |
| Sunday, April 15 |
| » Lost to Athletics (5-1), 3-0 | Kingdome (0-3) | 1-5 | Lost 5 |
| » W: Bob Welch (2-0) L: Brian Holman (1-1) S: Dennis Eckersley (3) | Seventh | 4 out |
| Monday, April 16 |
| » Defeated Twins (2-6), 6-3 | Kingdome (1-3) | 2-5 | |
| » W: Randy Johnson (1-1) L: David West (0-2) S: Mike Schooler (2) | Sixth | 3½ out |
| Tuesday, April 17 |
| » Lost to Twins (3-6), 6-5 | Kingdome (1-4) | 2-6 | |
| » W: Juan Berenguer (1-0) L: Keith Comstock (0-1) S: Rick Aguilera (3) | Seventh | 4½ out |
| Wednesday, April 18 |
| » Lost to Twins (4-6), 4-3 | Kingdome (1-5) | 2-7 | Lost 2 |
| » W: Terry Leach (1-0) L: Matt Young (0-2) S: Rick Aguilera (4) | Seventh | 5½ out |
| Thursday, April 19 |
| » Lost to Athletics (8-1), 5-2 | Oakland-Alameda County Stadium (0-1) | 2-8 | Lost 3 |
| » W: Dave Stewart (3-0) L: Gary Eave (0-2) | Sixth | 6½ out |
| Friday, April 20 |
| » Defeated Athletics (8-2), 6-1 | Oakland-Alameda County Stadium (1-1) | 3-8 | |
| » W: Brian Holman (2-1) L: Bob Welch (2-1) | Sixth | 5½ out |
| Saturday, April 21 |
| » Lost to Athletics (9-2), 7-6 | Oakland-Alameda County Stadium (1-2) | 3-9 | |
| » W: Dennis Eckersley (1-0) L: Jerry Reed (0-1) | Sixth | 6½ out |
| Sunday, April 22 |
| » Defeated Athletics (9-3), 5-2 | Oakland-Alameda County Stadium (2-2) | 4-9 | |
| » W: Erik Hanson (1-0) L: Scott Sanderson (2-1) S: Mike Jackson (1) | Seventh | 5½ out |
| Tuesday, April 24 |
| » Lost to Yankees (5-6), 6-2 | Yankee Stadium (0-1) | 4-10 | |
| » W: Dave LaPoint (1-1) L: Matt Young (0-3) | Seventh | 6½ out |
| Wednesday, April 25 |
| » Defeated Yankees (5-7), 5-2 | Yankee Stadium (1-1) | 5-10 | |
| » W: Brian Holman (3-1) L: Pascual Perez (1-2) S: Mike Schooler (3) | Seventh | 6½ out |
| Thursday, April 26 |
| » Defeated Yankees (5-8), 6-2 | Yankee Stadium (2-1) | 6-10 | Won 2 |
| » W: Randy Johnson (2-1) L: Andy Hawkins (0-2) S: Bill Swift (1) | Sixth | 6½ out |
| Friday, April 27 |
| » Defeated Orioles (7-10), 4-3 | Memorial Stadium (1-0) | 7-10 | Won 3 |
| » W: Erik Hanson (2-0) L: Jeff Ballard (0-3) S: Mike Schooler (4) | Fifth | 5½ out |
| Saturday, April 28 |
| » Defeated Orioles (7-11), 4-3 | Memorial Stadium (2-0) | 8-10 | Won 4 |
| » W: Mike Jackson (1-0) L: Kevin Hickey (0-2) S: Mike Schooler (5) | Fourth | 4½ out |
| Sunday, April 29 |
| » Lost to Orioles (8-11), 5-4 | Memorial Stadium (2-1) | 8-11 | |
| » W: Mark Williamson (1-0) L: Mike Jackson (1-1) | Fifth | 5½ out |
| Monday, April 30 |
| » Lost to Red Sox (11-8), 11-0 | Fenway Park (0-1) | 8-12 | Lost 2 |
| » W: Mike Boddicker (2-3) L: Brian Holman (3-2) | Fifth | 6½ out |
| Tuesday, May 1 |
| » Lost to Red Sox (12-8), 8-2 | Fenway Park (0-2) | 8-13 | Lost 3 |
| » W: Eric Hetzel (1-1) L: Randy Johnson (2-2) | Sixth | 7½ out |
| Wednesday, May 2 |
| » Defeated Red Sox (12-9), 9-2 | Fenway Park (1-2) | 9-13 | |
| » W: Erik Hanson (3-0) L: Greg Harris (2-1) | Sixth | 7½ out |
| Thursday, May 3 |
| » Defeated Angels (10-12), 10-8 | Kingdome (2-5) | 10-13 | Won 2 |
| » W: Brent Knackert (1-0) L: Chuck Finley (3-2) S: Mike Schooler (6) | Fifth | 7 out |
| Friday, May 4 |
| » Lost to Orioles (10-13), 9-8 | Kingdome (2-6) | 10-14 | |
| » W: Kevin Hickey (1-2) L: Mike Jackson (1-2) S: Gregg Olson (5) | Sixth | 8 out |
| Saturday, May 5 |
| » Defeated Orioles (10-14), 5-2 | Kingdome (3-6) | 11-14 | |
| » W: Brian Holman (4-2) L: Dave Johnson (2-2) S: Mike Schooler (7) | Fifth | 7 out |
| Sunday, May 6 |
| » Defeated Orioles (10-15), 5-4 | Kingdome (4-6) | 12-14 | Won 2 |
| » W: Bill Swift (1-0) L: Mark Williamson (1-1) S: Mike Schooler (8) | Fifth | 7 out |
| Monday, May 7 |
| » Lost to Red Sox (14-11), 5-4 | Kingdome (4-7) | 12-15 | |
| » W: Greg Harris (3-1) L: Erik Hanson (3-1) S: Rob Murphy (1) | Fifth | 8 out |
| Tuesday, May 8 |
| » Defeated Red Sox (14-12), 2-1 | Kingdome (5-7) | 13-15 | |
| » W: Bill Swift (2-0) L: Wes Gardner (0-1) | Fifth | 8 out |
| Wednesday, May 9 |
| » Lost to Red Sox (15-12), 4-1 | Kingdome (5-8) | 13-16 | |
| » W: Roger Clemens (5-2) L: Gary Eave (0-3) | Fifth | 9 out |
| Thursday, May 10 |
| » Defeated Angels (11-18), 5-2 | Kingdome (6-8) | 14-16 | |
| » W: Brian Holman (5-2) L: Kirk McCaskill (2-2) S: Mike Schooler (9) | Fifth | 8½ out |
| Friday, May 11 |
| » Lost to Yankees (11-16), 8-5 | Kingdome (6-9) | 14-17 | |
| » W: Lee Guetterman (2-1) L: Gene Harris (0-1) S: Dave Righetti (7) | Fourth | 9½ out |
| Saturday, May 12 |
| » Lost to Yankees (12-16), 4-1 | Kingdome (6-10) | 14-18 | Lost 2 |
| » W: Tim Leary (2-3) L: Erik Hanson (3-2) | Fifth | 9½ out |
| Sunday, May 13 |
| » Defeated Yankees (12-17), 10-5 | Kingdome (7-10) | 15-18 | |
| » W: Matt Young (1-3) L: Greg Cadaret (1-3) | Fifth | 8½ out |
| Tuesday, May 15 |
| » Defeated Blue Jays (20-14), 4-3 | Skydome (1-0) | 16-18 | Won 2 |
| » W: Keith Comstock (1-1) L: Jim Acker (0-1) S: Mike Schooler (10) | Fourth | 7 out |
| Wednesday, May 16 |
| » Defeated Blue Jays (20-15), 4-2 | Skydome (2-0) | 17-18 | Won 3 |
| » W: Brian Holman (6-2) L: Todd Stottlemyre (4-4) S: Mike Schooler (11) | Fourth | 7 out |
| Thursday, May 17 |
| » Defeated Blue Jays (20-16), 14-6 | Skydome (3-0) | 18-18 | Won 4 |
| » W: Randy Johnson (3-2) L: Jimmy Key (4-2) | Fourth | 6½ out |
| Friday, May 18 |
| » Lost to Indians (18-16), 5-0 | Cleveland Stadium (0-1) | 18-19 | |
| » W: Bud Black (4-1) L: Erik Hanson (3-3) | Fourth | 6½ out |
| Saturday, May 19 |
| » Lost to Indians (19-16), 4-3 | Cleveland Stadium (0-2) | 18-20 | Lost 2 |
| » W: Jesse Orosco (2-1) L: Matt Young (1-4) S: Doug Jones (14) | Fourth | 7½ out |
| Sunday, May 20 |
| » Defeated Indians (19-17), 8-7 | Cleveland Stadium (1-2) | 19-20 | |
| » W: Mike Schooler (1-0) L: Jesse Orosco (2-2) | Fourth | 6½ out |
| Monday, May 21 |
| » Defeated Brewers (21-14), 9-4 | County Stadium (1-0) | 20-20 | Won 2 |
| » W: Bryan Clark (1-0) L: Dan Plesac (0-2) | Fourth | 6½ out |
| Tuesday, May 22 |
| » Lost to Brewers (22-14), 3-2 | County Stadium (1-1) | 20-21 | |
| » W: Mark Knudson (3-1) L: Bill Swift (2-1) | Fourth | 7½ out |
| Wednesday, May 23 |
| » Defeated Indians (19-20), 4-1 | Kingdome (8-10) | 21-21 | |
| » W: Erik Hanson (4-3) L: Bud Black (4-2) S: Mike Schooler (12) | Fourth | 7½ out |
| Thursday, May 24 |
| » Lost to Indians (20-20), 5-3 | Kingdome (8-11) | 21-22 | |
| » W: Jesse Orosco (3-2) L: Matt Young (1-5) S: Doug Jones (15) | Fourth | 8½ out |
| Friday, May 25 |
| » Lost to Blue Jays (22-22), 3-1 | Kingdome (8-12) | 21-23 | Lost 2 |
| » W: Jim Acker (1-1) L: Bill Swift (2-2) S: Tom Henke (5) | Fourth | 9½ out |
| Saturday, May 26 |
| » Lost to Blue Jays (23-22), 11-4 | Kingdome (8-13) | 21-24 | Lost 3 |
| » W: Frank Wills (4-2) L: Brian Holman (6-3) | Fifth | 10½ out |
| Sunday, May 27 |
| » Lost to Blue Jays (24-22), 5-1 | Kingdome (8-14) | 21-25 | Lost 4 |
| » W: John Cerutti (2-5) L: Randy Johnson (3-3) | Fifth | 11 out |
| Monday, May 28 |
| » Defeated Brewers (22-20), 4-3 | Kingdome (9-14) | 22-25 | |
| » W: Erik Hanson (5-3) L: Jaime Navarro (1-1) S: Mike Schooler (13) | Fifth | 10 out |
| Tuesday, May 29 |
| » Lost to Brewers (23-20), 5-3 | Kingdome (9-15) | 22-26 | |
| » W: Chuck Crim (2-1) L: Mike Jackson (1-3) S: Dan Plesac (9) | Fifth | 10 out |
| Wednesday, May 30 |
| » Defeated Brewers (23-21), 2-1 | Kingdome (10-15) | 23-26 | |
| » W: Bryan Clark (2-0) L: Chris Bosio (4-3) S: Mike Schooler (14) | Fifth | 10 out |
| Friday, June 1 |
| » Lost to Tigers (21-29), 9-7 | Kingdome (10-16) | 23-27 | |
| » W: Jack Morris (3-7) L: Scott Bankhead (0-2) S: Mike Henneman (12) | Fifth | 11½ out |
| Saturday, June 2 |
| » Defeated Tigers (21-30), 2-0 | Kingdome (11-16) | 24-27 | |
| » W: Randy Johnson (4-3) L: Jeff Robinson (4-5) | Fifth | 10½ out |
| Sunday, June 3 |
| » Lost to Tigers (22-30), 2-0 | Kingdome (11-17) | 24-28 | |
| » W: Frank Tanana (4-3) L: Erik Hanson (5-4) S: Mike Henneman (13) | Fifth | 10½ out |
| Tuesday, June 5 |
| » Defeated White Sox (30-18), 10-6 | Comiskey Park I (1-0) | 25-28 | |
| » W: Brian Holman (7-3) L: Greg Hibbard (4-4) | Fifth | 10½ out |
| Wednesday, June 6 |
| » Lost to White Sox (31-18), 5-0 | Comiskey Park I (1-1) | 25-29 | |
| » W: Melido Perez (5-4) L: Matt Young (1-6) | Fifth | 11½ out |
| Thursday, June 7 |
| » Defeated White Sox (31-19), 2-1 | Comiskey Park I (2-1) | 26-29 | |
| » W: Randy Johnson (5-3) L: Donn Pall (0-1) | Fifth | 10½ out |
| Friday, June 8 |
| » Defeated Tigers (25-31), 5-2 | Tiger Stadium (1-0) | 27-29 | Won 2 |
| » W: Erik Hanson (6-4) L: Frank Tanana (4-4) S: Mike Jackson (2) | Fifth | 11 out |
| » Lost to Tigers (26-31), 6-3 | Tiger Stadium (1-1) | 27-30 | |
| » W: Mike Henneman (2-4) L: Keith Comstock (1-2) | Fifth | 11 out |
| Saturday, June 9 |
| » Defeated Tigers (26-32), 5-2 | Tiger Stadium (2-1) | 28-30 | |
| » W: Russ Swan (1-1) L: Dan Petry (5-3) | Fifth | 11 out |
| Sunday, June 10 |
| » Lost to Tigers (27-32), 4-3 | Tiger Stadium (2-2) | 28-31 | |
| » W: Jack Morris (5-7) L: Brian Holman (7-4) S: Mike Henneman (15) | Fifth | 12 out |
| Monday, June 11 |
| » Lost to White Sox (35-19), 3-1 | Kingdome (11-18) | 28-32 | Lost 2 |
| » W: Melido Perez (6-4) L: Matt Young (1-7) S: Ken Patterson (1) | Fifth | 12 out |
| Tuesday, June 12 |
| » Defeated White Sox (35-20), 5-2 | Kingdome (12-18) | 29-32 | |
| » W: Randy Johnson (6-3) L: Adam Peterson (0-1) S: Mike Schooler (15) | Fifth | 11 out |
| Wednesday, June 13 |
| » Lost to White Sox (36-20), 11-2 | Kingdome (12-19) | 29-33 | |
| » W: Jack McDowell (3-3) L: Erik Hanson (6-5) | Fifth | 12 out |
| Thursday, June 14 |
| » Defeated Rangers (26-35), 5-4 | Kingdome (13-19) | 30-33 | |
| » W: Keith Comstock (2-2) L: Kenny Rogers (2-2) | Fifth | 11 out |
| Friday, June 15 |
| » Lost to Rangers (27-35), 4-3 | Kingdome (13-20) | 30-34 | |
| » W: Kevin Brown (8-4) L: Brian Holman (7-5) | Fifth | 12 out |
| Saturday, June 16 |
| » Defeated Rangers (27-36), 5-0 | Kingdome (14-20) | 31-34 | |
| » W: Matt Young (2-7) L: Nolan Ryan (5-4) | Fifth | 12 out |
| Sunday, June 17 |
| » Defeated Rangers (27-37), 6-3 | Kingdome (15-20) | 32-34 | Won 2 |
| » W: Randy Johnson (7-3) L: Bobby Witt (3-8) | Fifth | 12 out |
| Monday, June 18 |
| » Lost to Royals (26-36), 6-2 | Royals Stadium (0-1) | 32-35 | |
| » W: Mark Gubicza (4-6) L: Erik Hanson (6-6) | Fifth | 12 out |
| Tuesday, June 19 |
| » Lost to Royals (27-36), 2-1 | Royals Stadium (0-2) | 32-36 | Lost 2 |
| » W: Steve Farr (5-3) L: Russ Swan (1-2) S: Jeff Montgomery (5) | Fifth | 12 out |
| Wednesday, June 20 |
| » Defeated Royals (27-37), 3-2 | Royals Stadium (1-2) | 33-36 | |
| » W: Brian Holman (8-5) L: Kevin Appier (2-3) S: Mike Schooler (16) | Fourth | 12 out |
| Friday, June 22 |
| » Lost to Rangers (31-37), 5-2 | Arlington Stadium (0-1) | 33-37 | |
| » W: Nolan Ryan (6-4) L: Matt Young (2-8) | Fifth | 12 out |
| Saturday, June 23 |
| » Defeated Rangers (31-38), 8-6 | Arlington Stadium (1-1) | 34-37 | |
| » W: Mike Jackson (2-3) L: Kenny Rogers (2-3) S: Mike Schooler (17) | Fifth | 11 out |
| Sunday, June 24 |
| » Defeated Rangers (31-39), 11-5 | Arlington Stadium (2-1) | 35-37 | Won 2 |
| » W: Erik Hanson (7-6) L: Charlie Hough (7-5) | Fourth | 10 out |
| Tuesday, June 26 |
| » Lost to Royals (30-39), 4-1 | Kingdome (15-21) | 35-38 | |
| » W: Tom Gordon (5-4) L: Brian Holman (8-6) S: Jeff Montgomery (6) | Fifth | 11½ out |
| Wednesday, June 27 |
| » Defeated Royals (30-40), 3-2 | Kingdome (16-21) | 36-38 | |
| » W: Mike Jackson (3-3) L: Mark Davis (1-4) S: Mike Schooler (18) | Fifth | 10½ out |
| Thursday, June 28 |
| » Defeated Royals (30-41), 6-4 | Kingdome (17-21) | 37-38 | Won 2 |
| » W: Keith Comstock (3-2) L: Mark Davis (1-5) S: Mike Schooler (19) | Fourth | 10 out |
| Friday, June 29 |
| » Defeated Brewers (33-39), 4-2 | Kingdome (18-21) | 38-38 | Won 3 |
| » W: Randy Johnson (8-3) L: Chuck Crim (2-4) S: Mike Schooler (20) | Fourth | 10 out |
| Saturday, June 30 |
| » Defeated Brewers (33-40), 6-2 | Kingdome (19-21) | 39-38 | Won 4 |
| » W: Erik Hanson (8-6) L: Teddy Higuera (5-2) | Third | 10 out |
| Sunday, July 1 |
| » Defeated Brewers (33-41), 6-5 | Kingdome (20-21) | 40-38 | Won 5 |
| » W: Keith Comstock (4-2) L: Paul Mirabella (2-2) | Third | 9 out |
| Tuesday, July 3 |
| » Lost to Indians (38-38), 9-4 | Cleveland Stadium (1-3) | 40-39 | |
| » W: Al Nipper (2-1) L: Matt Young (2-9) | Third | 10½ out |
| Wednesday, July 4 |
| » Defeated Indians (38-39), 3-2 | Cleveland Stadium (2-3) | 41-39 | |
| » W: Randy Johnson (9-3) L: Charles Nagy (0-2) S: Mike Schooler (21) | Third | 9½ out |
| Thursday, July 5 |
| » Defeated Indians (38-40), 4-1 | Cleveland Stadium (3-3) | 42-39 | Won 2 |
| » W: Erik Hanson (9-6) L: Tom Candiotti (9-4) S: Mike Schooler (22) | Third | 8½ out |
| Friday, July 6 |
| » Lost to Blue Jays (46-37), 1-0 | Skydome (3-1) | 42-40 | |
| » W: David Wells (6-2) L: Brian Holman (8-7) S: Tom Henke (16) | Third | 9 out |
| Saturday, July 7 |
| » Lost to Blue Jays (47-37), 4-2 | Skydome (3-2) | 42-41 | Lost 2 |
| » W: Jimmy Key (5-4) L: Russ Swan (1-3) S: Duane Ward (7) | Third | 9 out |
| Sunday, July 8 |
| » Defeated Blue Jays (47-38), 6-3 | Skydome (4-2) | 43-41 | |
| » W: Matt Young (3-9) L: Todd Stottlemyre (9-8) | Third | 9 out |
| Wednesday, July 11 |
| » Defeated Angels (41-44), 2-1 | Kingdome (21-21) | 44-41 | Won 2 |
| » W: Erik Hanson (10-6) L: Mark Langston (4-10) S: Mike Schooler (23) | Third | 9 out |
| Thursday, July 12 |
| » Lost to Indians (41-42), 5-4 | Kingdome (21-22) | 44-42 | |
| » W: Rudy Seanez (2-1) L: Mike Schooler (1-1) S: Doug Jones (24) | Third | 10 out |
| Friday, July 13 |
| » Lost to Indians (42-42), 13-7 | Kingdome (21-23) | 44-43 | Lost 2 |
| » W: Tom Candiotti (10-4) L: Matt Young (3-10) | Third | 10 out |
| Saturday, July 14 |
| » Lost to Indians (43-42), 3-0 | Kingdome (21-24) | 44-44 | Lost 3 |
| » W: Bud Black (8-4) L: Randy Johnson (9-4) S: Doug Jones (25) | Third | 11 out |
| » Major-league debuts: Luis Sojo (Mariners) |
| Sunday, July 15 |
| » Defeated Indians (43-43), 7-0 | Kingdome (22-24) | 45-44 | |
| » W: Bill Swift (3-2) L: Charles Nagy (0-3) | Third | 11 out |
| Monday, July 16 |
| » Lost to Blue Jays (49-41), 4-3 | Kingdome (22-25) | 45-45 | |
| » W: Jimmy Key (6-4) L: Erik Hanson (10-7) S: Tom Henke (17) | Third | 12 out |
| Tuesday, July 17 |
| » Defeated Blue Jays (49-42), 7-5 | Kingdome (23-25) | 46-45 | |
| » W: Mike Jackson (4-3) L: Duane Ward (1-5) S: Mike Schooler (24) | Third | 11 out |
| Wednesday, July 18 |
| » Defeated Blue Jays (49-43), 5-2 | Kingdome (24-25) | 47-45 | Won 2 |
| » W: Matt Young (4-10) L: Todd Stottlemyre (9-10) | Third | 11½ out |
| Thursday, July 19 |
| » Lost to Brewers (41-48), 4-0 | County Stadium (1-2) | 47-46 | |
| » W: Bill Krueger (5-5) L: Randy Johnson (9-5) S: Jaime Navarro (1) | Third | 12 out |
| Friday, July 20 |
| » Defeated Brewers (41-49), 6-4 | County Stadium (2-2) | 48-46 | |
| » W: Keith Comstock (5-2) L: Randy Veres (0-2) S: Mike Schooler (25) | Third | 11 out |
| Saturday, July 21 |
| » Lost to Brewers (42-49), 10-3 | County Stadium (2-3) | 48-47 | |
| » W: Ron Robinson (6-3) L: Erik Hanson (10-8) S: Randy Veres (1) | Third | 11 out |
| Sunday, July 22 |
| » Defeated Brewers (42-50), 4-3 | County Stadium (3-3) | 49-47 | |
| » W: Brian Holman (9-7) L: Teddy Higuera (6-5) S: Mike Schooler (26) | Third | 11 out |
| Tuesday, July 24 |
| » Defeated Twins (45-51), 8-2 | Hubert H. Humphrey Metrodome (1-0) | 50-47 | Won 2 |
| » W: Matt Young (5-10) L: David West (5-7) | Third | 11½ out |
| Wednesday, July 25 |
| » Lost to Twins (46-51), 6-0 | Hubert H. Humphrey Metrodome (1-1) | 50-48 | |
| » W: Kevin Tapani (10-5) L: Randy Johnson (9-6) S: John Candelaria (4) | Third | 12½ out |
| Thursday, July 26 |
| » Defeated Twins (46-52), 6-4 | Hubert H. Humphrey Metrodome (2-1) | 51-48 | |
| » W: Bill Swift (4-2) L: Allan Anderson (4-13) S: Mike Schooler (27) | Third | 11½ out |
| Friday, July 27 |
| » Defeated Angels (48-52), 8-1 | Kingdome (25-25) | 52-48 | Won 2 |
| » W: Erik Hanson (11-8) L: Mark Langston (4-13) | Third | 10½ out |
| Saturday, July 28 |
| » Defeated Angels (48-53), 2-1 | Kingdome (26-25) | 53-48 | Won 3 |
| » W: Brian Holman (10-7) L: Kirk McCaskill (7-7) S: Mike Schooler (28) | Third | 10 out |
| Sunday, July 29 |
| » Lost to Angels (49-53), 6-2 | Kingdome (26-26) | 53-49 | |
| » W: Jim Abbott (7-9) L: Matt Young (5-11) S: Bryan Harvey (12) | Third | 10 out |
| Monday, July 30 |
| » Lost to Athletics (64-39), 6-2 | Oakland-Alameda County Stadium (2-3) | 53-50 | Lost 2 |
| » W: Rick Honeycutt (2-2) L: Randy Johnson (9-7) S: Dennis Eckersley (32) | Third | 11 out |
| Tuesday, July 31 |
| » Defeated Athletics (64-40), 7-2 | Oakland-Alameda County Stadium (3-3) | 54-50 | |
| » W: Bill Swift (5-2) L: Mike Moore (9-10) | Third | 10 out |
| » Major-league debuts: Joe Bitker (Athletics) |
| Wednesday, August 1 |
| » Lost to Athletics (65-40), 1-0 | Oakland-Alameda County Stadium (3-4) | 54-51 | |
| » W: Dave Stewart (14-8) L: Mike Schooler (1-2) | Fourth | 11 out |
| Thursday, August 2 |
| » Defeated Twins (50-56), 7-2 | Kingdome (27-26) | 55-51 | |
| » W: Brian Holman (11-7) L: Mark Guthrie (3-4) | Third | 11 out |
| Friday, August 3 |
| » Lost to Twins (51-56), 6-2 | Kingdome (27-27) | 55-52 | |
| » W: Rick Aguilera (4-3) L: Mike Schooler (1-3) | Fourth | 12 out |
| Saturday, August 4 |
| » Defeated Twins (51-57), 4-3 | Kingdome (28-27) | 56-52 | |
| » W: Mike Jackson (5-3) L: Jack Savage (0-1) | Fourth | 11 out |
| Sunday, August 5 |
| » Defeated Twins (51-58), 4-0 | Kingdome (29-27) | 57-52 | Won 2 |
| » W: Gene Harris (1-1) L: Allan Anderson (4-15) S: Keith Comstock (1) | Third | 11 out |
| Monday, August 6 |
| » Major-league debuts: Randy Tomlin (Pirates) |
| Tuesday, August 7 |
| » Lost to Yankees (44-64), 3-1 | Kingdome (29-28) | 57-53 | |
| » W: Mike Witt (1-4) L: Erik Hanson (11-9) S: Dave Righetti (23) | Fourth | 12 out |
| Wednesday, August 8 |
| » Lost to Yankees (45-64), 6-4 | Kingdome (29-29) | 57-54 | Lost 2 |
| » W: Eric Plunk (5-2) L: Keith Comstock (5-3) S: Dave Righetti (24) | Fourth | 12 out |
| Thursday, August 9 |
| » Lost to Yankees (46-64), 1-0 | Kingdome (29-30) | 57-55 | Lost 3 |
| » W: Tim Leary (6-14) L: Matt Young (5-12) S: Lee Guetterman (1) | Fourth | 13 out |
| Friday, August 10 |
| » Defeated Red Sox (60-51), 4-1 | Kingdome (30-30) | 58-55 | |
| » W: Randy Johnson (10-7) L: Dana Kiecker (4-5) S: Mike Schooler (29) | Third | 13 out |
| Saturday, August 11 |
| » Lost to Red Sox (61-51), 4-2 | Kingdome (30-31) | 58-56 | |
| » W: Daryl Irvine (1-0) L: Mike Schooler (1-4) | Fourth | 14 out |
| Sunday, August 12 |
| » Lost to Red Sox (62-51), 7-2 | Kingdome (30-32) | 58-57 | Lost 2 |
| » W: Tom Bolton (7-1) L: Mike Jackson (5-4) | Fourth | 15 out |
| Monday, August 13 |
| » Lost to Orioles (56-58), 3-2 | Kingdome (30-33) | 58-58 | Lost 3 |
| » W: Ben McDonald (5-0) L: Brian Holman (11-8) S: Gregg Olson (27) | Fourth | 16 out |
| Tuesday, August 14 |
| » Defeated Orioles (56-59), 7-1 | Kingdome (31-33) | 59-58 | |
| » W: Matt Young (6-12) L: Dave Johnson (11-8) | Fourth | 15 out |
| Wednesday, August 15 |
| » Defeated Orioles (56-60), 2-0 | Kingdome (32-33) | 60-58 | Won 2 |
| » W: Randy Johnson (11-7) L: Pete Harnisch (9-7) | Fourth | 15 out |
| Friday, August 17 |
| » Lost to Yankees (47-70), 3-2 | Yankee Stadium (2-2) | 60-59 | |
| » W: Lee Guetterman (8-4) L: Bill Swift (5-3) S: Dave Righetti (25) | Fourth | 16 out |
| Saturday, August 18 |
| » Lost to Yankees (48-70), 6-0 | Yankee Stadium (2-3) | 60-60 | Lost 2 |
| » W: Mike Witt (2-5) L: Brian Holman (11-9) | Fourth | 17 out |
| Sunday, August 19 |
| » Lost to Yankees (49-70), 3-1 | Yankee Stadium (2-4) | 60-61 | Lost 3 |
| » W: Tim Leary (7-15) L: Matt Young (6-13) S: Dave Righetti (26) | Fourth | 17 out |
| Monday, August 20 |
| » Lost to Rangers (63-59), 6-5 | Arlington Stadium (2-2) | 60-62 | Lost 4 |
| » W: Mike Jeffcoat (4-5) L: Mike Jackson (5-5) | Fifth | 17 out |
| » Major-league debuts: Tino Martinez (Mariners) |
| Tuesday, August 21 |
| » Defeated Rangers (63-60), 4-3 | Arlington Stadium (3-2) | 61-62 | |
| » W: Randy Johnson (12-7) L: Charlie Hough (10-9) S: Mike Schooler (30) | Fourth | 16 out |
| Wednesday, August 22 |
| » Lost to Rangers (64-60), 5-4 | Arlington Stadium (3-3) | 61-63 | |
| » W: Nolan Ryan (12-6) L: Bill Swift (5-4) S: Brad Arnsberg (4) | Fifth | 17 out |
| Thursday, August 23 |
| » Lost to Royals (62-62), 4-1 | Royals Stadium (1-3) | 61-64 | Lost 2 |
| » W: Kevin Appier (10-4) L: Brian Holman (11-10) S: Jeff Montgomery (19) | Fifth | 17½ out |
| Friday, August 24 |
| » Lost to Royals (63-62), 4-3 | Royals Stadium (1-4) | 61-65 | Lost 3 |
| » W: Steve Farr (10-5) L: Gene Harris (1-2) | Fifth | 18½ out |
| Saturday, August 25 |
| » Defeated Royals (63-63), 6-3 | Royals Stadium (2-4) | 62-65 | |
| » W: Erik Hanson (12-9) L: Storm Davis (7-9) S: Bill Swift (2) | Fifth | 17½ out |
| Sunday, August 26 |
| » Lost to Royals (64-63), 8-2 | Royals Stadium (2-5) | 62-66 | |
| » W: Jim Campbell (1-0) L: Randy Johnson (12-8) | Sixth | 17½ out |
| Tuesday, August 28 |
| » Defeated Tigers (60-69), 4-3 | Kingdome (33-33) | 63-66 | |
| » W: Keith Comstock (6-3) L: Paul Gibson (3-4) | Sixth | 17½ out |
| Wednesday, August 29 |
| » Lost to Tigers (61-69), 4-2 | Kingdome (33-34) | 63-67 | |
| » W: Walt Terrell (5-9) L: Matt Young (6-14) S: Jerry Don Gleaton (9) | Sixth | 17½ out |
| Thursday, August 30 |
| » Lost to Tigers (62-69), 3-2 | Kingdome (33-35) | 63-68 | Lost 2 |
| » W: Mike Henneman (7-6) L: Mike Jackson (5-6) | Sixth | 18½ out |
| Friday, August 31 |
| » Defeated Royals (65-66), 5-2 | Kingdome (34-35) | 64-68 | |
| » W: Randy Johnson (13-8) L: Storm Davis (7-10) S: Bill Swift (3) | Sixth | 18½ out |
| Saturday, September 1 |
| » Defeated Royals (65-67), 3-0 | Kingdome (35-35) | 65-68 | Won 2 |
| » W: Russ Swan (2-3) L: Steve Crawford (5-4) S: Bill Swift (4) | Sixth | 17½ out |
| Sunday, September 2 |
| » Lost to Royals (66-67), 8-0 | Kingdome (35-36) | 65-69 | |
| » W: Tom Gordon (10-9) L: Brian Holman (11-11) | Sixth | 18½ out |
| Monday, September 3 |
| » Defeated Orioles (60-73), 6-2 | Memorial Stadium (3-1) | 66-69 | |
| » W: Matt Young (7-14) L: Anthony Telford (1-2) | Sixth | 18½ out |
| Tuesday, September 4 |
| » Defeated Orioles (60-74), 7-2 | Memorial Stadium (4-1) | 67-69 | Won 2 |
| » W: Erik Hanson (13-9) L: Pete Harnisch (10-10) | Fourth | 18½ out |
| Wednesday, September 5 |
| » Defeated Orioles (60-75), 9-5 | Memorial Stadium (5-1) | 68-69 | Won 3 |
| » W: Keith Comstock (7-3) L: Kevin Hickey (1-3) | Fifth | 18½ out |
| Friday, September 7 |
| » Lost to Red Sox (77-60), 5-4 | Fenway Park (1-3) | 68-70 | |
| » W: Jeff Gray (2-3) L: Mike Jackson (5-7) | Fifth | 19½ out |
| Saturday, September 8 |
| » Lost to Red Sox (78-60), 10-2 | Fenway Park (1-4) | 68-71 | Lost 2 |
| » W: Tom Bolton (9-2) L: Scott Medvin (0-1) | Fifth | 20½ out |
| » Major-league debuts: Dave Burba Rich DeLucia and Mike Gardiner (Mariners) |
| Sunday, September 9 |
| » Defeated Red Sox (78-61), 3-1 | Fenway Park (2-4) | 69-71 | |
| » W: Matt Young (8-14) L: Joe Hesketh (1-4) S: Bill Swift (5) | Fourth | 20½ out |
| Monday, September 10 |
| » Defeated Athletics (89-51), 5-2 | Kingdome (36-36) | 70-71 | Won 2 |
| » W: Erik Hanson (14-9) L: Bob Welch (23-6) S: Keith Comstock (2) | Fourth | 19½ out |
| Tuesday, September 11 |
| » Lost to Athletics (90-51), 10-2 | Kingdome (36-37) | 70-72 | |
| » W: Curt Young (9-5) L: Randy Johnson (13-9) | Fifth | 20½ out |
| » Major-league debuts: Jose Melendez (Mariners) |
| Wednesday, September 12 |
| » Lost to Athletics (91-51), 9-3 | Kingdome (36-38) | 70-73 | Lost 2 |
| » W: Scott Sanderson (16-9) L: Mike Gardiner (0-1) | Fifth | 21½ out |
| Thursday, September 13 |
| » Lost to Angels (73-71), 7-1 | Anaheim Stadium (1-3) | 70-74 | Lost 3 |
| » W: Chuck Finley (18-6) L: Keith Comstock (7-4) | Fifth | 21½ out |
| Friday, September 14 |
| » Lost to Angels (74-71), 7-5 | Anaheim Stadium (1-4) | 70-75 | Lost 4 |
| » W: Bob McClure (2-0) L: Matt Young (8-15) S: Bryan Harvey (23) | Fifth | 22½ out |
| Saturday, September 15 |
| » Defeated Angels (74-72), 7-2 | Anaheim Stadium (2-4) | 71-75 | |
| » W: Erik Hanson (15-9) L: Jim Abbott (10-13) | Fifth | 22½ out |
| Sunday, September 16 |
| » Defeated Angels (74-73), 5-3 | Anaheim Stadium (3-4) | 72-75 | Won 2 |
| » W: Bill Swift (6-4) L: Bryan Harvey (3-4) S: Mike Jackson (3) | Fifth | 22½ out |
| Monday, September 17 |
| » Lost to Rangers (78-69), 10-4 | Kingdome (36-39) | 72-76 | |
| » W: Bobby Witt (16-9) L: Mike Gardiner (0-2) | Fifth | 22½ out |
| Tuesday, September 18 |
| » Defeated Rangers (78-70), 7-3 | Kingdome (37-39) | 73-76 | |
| » W: Rich DeLucia (1-0) L: Mike Jeffcoat (4-6) | Fifth | 21½ out |
| Wednesday, September 19 |
| » Lost to Rangers (79-70), 6-5 | Kingdome (37-40) | 73-77 | |
| » W: John Barfield (4-2) L: Matt Young (8-16) S: Kenny Rogers (15) | Fifth | 22½ out |
| Thursday, September 20 |
| » Defeated White Sox (86-64), 7-3 | Kingdome (38-40) | 74-77 | |
| » W: Erik Hanson (16-9) L: Greg Hibbard (13-9) | Fifth | 22 out |
| Friday, September 21 |
| » Lost to White Sox (87-64), 5-4 | Kingdome (38-41) | 74-78 | |
| » W: Eric King (11-4) L: Randy Johnson (13-10) S: Bobby Thigpen (52) | Fifth | 23 out |
| Saturday, September 22 |
| » Lost to White Sox (88-64), 14-5 | Kingdome (38-42) | 74-79 | Lost 2 |
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