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| Season Summary | 76-86, Final Rank:4, GB: 17.0 | |
| Days in First | 2 | last on Wednesday, Apr 7, counts only the days a team played and was in first at the end of the day |
| 3 | last on Apr 7, counts all days of the season including off days | |
| Biggest Lead | never led | |
| Farthest Behind | 17 | last on Sunday, Oct 3, for days on which they played |
| Most Games over .500 | 7 | last on Thursday, Jul 8 |
| Most Games under .500 | 10 | last on Sunday, Oct 3 |
| Longest Winning Streak | 5 | Saturday, May 22 to Thursday, May 27 |
| Longest Losing Streak | 7 | Tuesday, Aug 17 to Tuesday, Aug 24 |
| Most Runs Allowed | 13 | Saturday, Jun 26 |
| Most Runs Scored | 11 | Tuesday, Apr 6 |
| Longest Game (innings) | 20 | Tuesday, Apr 13 |
| Times Shutout by Opponent | 6 | |
| Times Opponent Shutout | 11 | |
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| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Tuesday, Apr 6 | boxscore | SEA | @ | MIN | W | 11 | 7 | 1-0 | 1 | Tied | Bannister | Redfern | Stanton | 2:32 | 52,279 | + | |
| 2 | 2 | Wednesday, Apr 7 | boxscore | SEA | @ | MIN | L | 5 | 7 | 1-1 | 1 | Tied | Erickson | Beattie | Corbett | 2:50 | 5,213 | - | |
| 3 | 3 | Thursday, Apr 8 | boxscore | SEA | @ | MIN | L | 1 | 4 | 1-2 | 5 | 1.0 | Havens | Nelson | Corbett | 2:32 | 10,412 | -- | |
| 4 | 4 | Friday, Apr 9 | boxscore | SEA | @ | OAK | L | 3 | 5 | 1-3 | 7 | 2.0 | McCatty | Perry | Owchinko | 2:44 | 28,139 | --- | |
| 5 | 5 | Sunday, Apr 11 | boxscore | SEA | @ | OAK | W | 6 | 3 | 16 | 2-3 | 7 | 2.0 | Caudill | McLaughlin | 5:18 | 0 | + | |
| 6 | 6 | Sunday, Apr 11 | boxscore | SEA | @ | OAK | L | 1 | 3 | 2-4 | 7 | 2.0 | Langford | Moore | 2:32 | 19,003 | - | ||
| 7 | 7 | Tuesday, Apr 13 | boxscore | SEA | @ | CAL | L | 3 | 4 | 20 | 2-5 | 7 | 3.0 | Sanchez | Nelson | 6:06 | 33,574 | -- | |
| 8 | 8 | Wednesday, Apr 14 | boxscore | SEA | @ | CAL | L | 1 | 2 | 10 | 2-6 | 7 | 4.0 | Renko | Vande Berg | 2:37 | 23,905 | --- | |
| 9 | 9 | Thursday, Apr 15 | boxscore | SEA | @ | CAL | L | 2 | 3 | 2-7 | 7 | 5.0 | Moreno | Perry | 2:22 | 22,410 | ---- | ||
| 10 | 10 | Friday, Apr 16 | boxscore | SEA | OAK | W | 5 | 0 | 3-7 | 7 | 4.5 | Bannister | Norris | 2:33 | 23,856 | + | |||
| 11 | 11 | Saturday, Apr 17 | boxscore | SEA | OAK | L | 3 | 10 | 3-8 | 7 | 6.0 | Keough | Moore | 2:49 | 29,379 | - | |||
| 12 | 12 | Sunday, Apr 18 | boxscore | SEA | OAK | W | 4 | 3 | 4-8 | 7 | 6.0 | Vande Berg | Underwood | 2:51 | 8,960 | + | |||
| 13 | 13 | Monday, Apr 19 | boxscore | SEA | CAL | L | 1 | 3 | 4-9 | 7 | 6.5 | Witt | Nelson | Aase | 2:43 | 5,494 | - | ||
| 14 | 14 | Tuesday, Apr 20 | boxscore | SEA | CAL | W | 6 | 4 | 5-9 | 7 | 5.5 | Perry | Moreno | Stanton | 2:48 | 7,419 | + | ||
| 15 | 15 | Wednesday, Apr 21 | boxscore | SEA | CAL | W | 5 | 3 | 6-9 | 6 | 4.5 | Bannister | Renko | Caudill | 2:38 | 4,961 | ++ | ||
| 16 | 16 | Thursday, Apr 22 | boxscore | SEA | MIN | W | 8 | 4 | 7-9 | 6 | 4.0 | Moore | Redfern | Stanton | 2:49 | 4,601 | +++ | ||
| 17 | 17 | Friday, Apr 23 | boxscore | SEA | MIN | L | 4 | 12 | 7-10 | 6 | 5.0 | Erickson | Nunez | 2:53 | 5,665 | - | |||
| 18 | 18 | Saturday, Apr 24 | boxscore | SEA | MIN | W | 3 | 2 | 8-10 | 6 | 4.5 | Vande Berg | Davis | Caudill | 2:23 | 18,651 | + | ||
| 19 | 19 | Sunday, Apr 25 | boxscore | SEA | MIN | W | 5 | 4 | 11 | 9-10 | 4 | 4.5 | Caudill | Felton | 3:19 | 7,203 | ++ | ||
| 20 | 20 | Tuesday, Apr 27 | boxscore | SEA | @ | CLE | W &H | 7 | 4 | 11 | 10-10 | 4 | 4.5 | Caudill | Spillner | Vande Berg | 3:43 | 3,275 | +++ |
| 21 | 21 | Wednesday, Apr 28 | boxscore | SEA | @ | CLE | L | 1 | 6 | 10-11 | 4 | 4.5 | Barker | Moore | 2:38 | 3,889 | - | ||
| 22 | 22 | Thursday, Apr 29 | boxscore | SEA | @ | CLE | L | 1 | 5 | 10-12 | 5 | 5.5 | Sorensen | Nelson | 2:15 | 3,984 | -- | ||
| 23 | 23 | Friday, Apr 30 | boxscore | SEA | @ | NYY | W | 6 | 3 | 11-12 | 5 | 4.5 | Perry | Gossage | Caudill | 2:32 | 20,121 | + | |
| 24 | 24 | Saturday, May 1 | boxscore | SEA | @ | NYY | L | 1 | 5 | 11-13 | 5 | 5.5 | Frazier | Beattie | 2:46 | 20,118 | - | ||
| 25 | 25 | Sunday, May 2 | boxscore | SEA | @ | NYY | L | 2 | 4 | 11-14 | 5 | 5.5 | Guidry | Bannister | Gossage | 2:31 | 35,029 | -- | |
| 26 | 26 | Monday, May 3 | boxscore | SEA | @ | BAL | L | 0 | 6 | 11-15 | 5 | 6.5 | Flanagan | Moore | 2:21 | 9,241 | --- | ||
| 27 | 27 | Tuesday, May 4 | boxscore | SEA | @ | BAL | W | 4 | 3 | 12-15 | 5 | 5.5 | Nelson | Stewart | Vande Berg | 2:29 | 8,040 | + | |
| 28 | 28 | Thursday, May 6 | boxscore | SEA | NYY | W | 7 | 3 | 13-15 | 5 | 4.5 | Perry | Alexander | 2:29 | 27,369 | ++ | |||
| 29 | 29 | Friday, May 7 | boxscore | SEA | NYY | W | 5 | 2 | 14-15 | 5 | 3.5 | Bannister | Morgan | Caudill | 2:37 | 11,721 | +++ | ||
| 30 | 30 | Saturday, May 8 | boxscore | SEA | NYY | L | 4 | 9 | 14-16 | 5 | 4.5 | Guidry | Beattie | Gossage | 2:58 | 36,716 | - | ||
| 31 | 31 | Sunday, May 9 | boxscore | SEA | NYY | L | 0 | 3 | 14-17 | 5 | 5.5 | John | Nelson | Gossage | 2:13 | 7,577 | -- | ||
| 32 | 32 | Monday, May 10 | boxscore | SEA | CLE | W | 6 | 4 | 15-17 | 5 | 5.5 | Vande Berg | Sutcliffe | Caudill | 3:11 | 4,625 | + | ||
| 33 | 33 | Tuesday, May 11 | boxscore | SEA | CLE | L | 4 | 5 | 14 | 15-18 | 5 | 5.5 | Whitson | Caudill | 4:20 | 14,454 | - | ||
| 34 | 34 | Wednesday, May 12 | boxscore | SEA | CLE | L | 5 | 8 | 15-19 | 5 | 6.5 | Sutcliffe | Bannister | 3:22 | 4,691 | -- | |||
| 35 | 35 | Thursday, May 13 | boxscore | SEA | BAL | L | 1 | 3 | 15-20 | 5 | 7.5 | Martinez | Beattie | 2:46 | 5,304 | --- | |||
| 36 | 36 | Friday, May 14 | boxscore | SEA | BAL | L | 4 | 11 | 15-21 | 5 | 7.5 | Stewart | Nelson | Palmer | 2:31 | 6,489 | ---- | ||
| 37 | 37 | Saturday, May 15 | boxscore | SEA | BAL | W | 3 | 2 | 16-21 | 5 | 7.5 | Caudill | McGregor | 2:30 | 23,682 | + | |||
| 38 | 38 | Sunday, May 16 | boxscore | SEA | BAL | L | 4 | 5 | 10 | 16-22 | 5 | 8.5 | Martinez | Perry | Stoddard | 3:21 | 6,504 | - | |
| 39 | 39 | Tuesday, May 18 | boxscore | SEA | @ | BOS | W | 3 | 0 | 17-22 | 5 | 8.5 | Bannister | Eckersley | 2:02 | 16,436 | + | ||
| 40 | 40 | Wednesday, May 19 | boxscore | SEA | @ | BOS | L | 5 | 6 | 12 | 17-23 | 5 | 9.5 | Clear | Caudill | 3:33 | 12,927 | - | |
| 41 | 41 | Thursday, May 20 | boxscore | SEA | @ | BOS | L | 2 | 11 | 17-24 | 5 | 9.5 | Tudor | Moore | 2:43 | 14,587 | -- | ||
| 42 | 42 | Friday, May 21 | boxscore | SEA | @ | MIL | L | 1 | 4 | 17-25 | 5 | 10.5 | McClure | Perry | Fingers | 2:13 | 11,545 | --- | |
| 43 | 43 | Saturday, May 22 | boxscore | SEA | @ | MIL | W | 7 | 1 | 18-25 | 5 | 10.5 | Nelson | Lerch | 2:18 | 25,630 | + | ||
| 44 | 44 | Sunday, May 23 | boxscore | SEA | @ | MIL | W | 6 | 5 | 11 | 19-25 | 5 | 9.5 | Caudill | Fingers | 3:25 | 17,387 | ++ | |
| 45 | 45 | Tuesday, May 25 | boxscore | SEA | DET | W | 7 | 6 | 20-25 | 5 | 9.5 | Caudill | Sosa | 3:00 | 6,406 | +++ | |||
| 46 | 46 | Wednesday, May 26 | boxscore | SEA | DET | W | 4 | 2 | 21-25 | 5 | 9.0 | Perry | Morris | Caudill | 2:29 | 7,775 | ++++ | ||
| 47 | 47 | Thursday, May 27 | boxscore | SEA | BOS | W | 10 | 6 | 22-25 | 5 | 8.5 | Nelson | Torrez | 2:03 | 6,186 | +++++ | |||
| 48 | 48 | Friday, May 28 | boxscore | SEA | BOS | L | 2 | 3 | 22-26 | 5 | 9.0 | Eckersley | Bannister | Clear | 2:13 | 10,634 | - | ||
| 49 | 49 | Saturday, May 29 | boxscore | SEA | BOS | W | 4 | 2 | 23-26 | 4 | 9.0 | Moore | Hurst | Caudill | 2:17 | 25,756 | + | ||
| 50 | 50 | Sunday, May 30 | boxscore | SEA | BOS | W | 2 | 1 | 24-26 | 4 | 8.0 | Beattie | Tudor | 2:04 | 9,857 | ++ | |||
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 51 | 51 | Monday, May 31 | boxscore | SEA | MIL | W | 5 | 4 | 11 | 25-26 | 4 | 7.0 | Stanton | Augustine | 3:07 | 8,424 | +++ | ||
| 52 | 52 | Tuesday, Jun 1 | boxscore | SEA | MIL | L | 1 | 2 | 25-27 | 4 | 7.0 | Vuckovich | Nelson | Fingers | 2:19 | 5,321 | - | ||
| 53 | 53 | Wednesday, Jun 2 | boxscore | SEA | MIL | L | 2 | 5 | 25-28 | 5 | 7.0 | Caldwell | Bannister | 2:30 | 8,937 | -- | |||
| 54 | 54 | Friday, Jun 4 | boxscore | SEA | @ | DET | W | 4 | 0 | 26-28 | 4 | 6.0 | Beattie | Morris | 2:39 | 32,404 | + | ||
| 55 | 55 | Sunday, Jun 6 | boxscore | SEA | @ | DET | L | 2 | 10 | 26-29 | 4 | 5.5 | Petry | Perry | 2:25 | 18,378 | - | ||
| 56 | 56 | Monday, Jun 7 | boxscore | SEA | @ | TEX | W | 6 | 0 | 27-29 | 4 | 5.5 | Nelson | Matlack | 2:05 | 8,484 | + | ||
| 57 | 57 | Tuesday, Jun 8 | boxscore | SEA | @ | TEX | W | 2 | 1 | 14 | 28-29 | 4 | 5.5 | Caudill | Mirabella | Andersen | 3:40 | 8,971 | ++ |
| 58 | 58 | Wednesday, Jun 9 | boxscore | SEA | @ | TEX | W | 4 | 3 | 11 | 29-29 | 4 | 5.5 | Vande Berg | Comer | 2:50 | 8,459 | +++ | |
| 59 | 59 | Friday, Jun 11 | boxscore | SEA | @ | KCR | L | 2 | 3 | 12 | 29-30 | 4 | 6.0 | Quisenberry | Vande Berg | 3:14 | 34,824 | - | |
| 60 | 60 | Saturday, Jun 12 | boxscore | SEA | @ | KCR | W | 3 | 2 | 30-30 | 4 | 5.0 | Nelson | Creel | Caudill | 2:53 | 32,098 | + | |
| 61 | 61 | Sunday, Jun 13 | boxscore | SEA | @ | KCR | W | 7 | 1 | 31-30 | 4 | 4.5 | Bannister | Gura | 2:26 | 30,683 | ++ | ||
| 62 | 62 | Monday, Jun 14 | boxscore | SEA | TEX | W | 4 | 0 | 32-30 | 4 | 4.0 | Beattie | Matlack | Stanton | 2:11 | 10,795 | +++ | ||
| 63 | 63 | Tuesday, Jun 15 | boxscore | SEA | TEX | L | 2 | 5 | 32-31 | 4 | 5.0 | Tanana | Moore | Comer | 2:53 | 9,900 | - | ||
| 64 | 64 | Wednesday, Jun 16 | boxscore | SEA | TEX | W | 7 | 2 | 33-31 | 4 | 4.0 | Perry | Hough | Caudill | 2:33 | 10,066 | + | ||
| 65 | 65 | Thursday, Jun 17 | boxscore | SEA | TEX | L | 1 | 5 | 33-32 | 4 | 5.0 | Honeycutt | Nelson | 2:27 | 8,446 | - | |||
| 66 | 66 | Friday, Jun 18 | boxscore | SEA | KCR | L | 1 | 4 | 33-33 | 4 | 6.0 | Gura | Caudill | Quisenberry | 3:04 | 13,057 | -- | ||
| 67 | 67 | Saturday, Jun 19 | boxscore | SEA | KCR | W | 10 | 3 | 34-33 | 4 | 5.0 | Beattie | Creel | 2:37 | 22,150 | + | |||
| 68 | 68 | Sunday, Jun 20 | boxscore | SEA | KCR | L | 5 | 7 | 34-34 | 4 | 6.0 | Splittorff | Perry | Quisenberry | 2:57 | 17,468 | - | ||
| 69 | 69 | Monday, Jun 21 | boxscore | SEA | TOR | W | 5 | 4 | 35-34 | 4 | 6.0 | Moore | Leal | Caudill | 2:25 | 7,486 | + | ||
| 70 | 70 | Tuesday, Jun 22 | boxscore | SEA | TOR | W | 6 | 5 | 36-34 | 4 | 5.0 | Clark | Jackson | Caudill | 2:49 | 7,933 | ++ | ||
| 71 | 71 | Wednesday, Jun 23 | boxscore | SEA | TOR | L | 3 | 5 | 11 | 36-35 | 4 | 6.0 | McLaughlin | Stanton | 3:02 | 9,007 | - | ||
| 72 | 72 | Friday, Jun 25 | boxscore | SEA | CHW | W | 1 | 0 | 37-35 | 4 | 5.5 | Beattie | Hoyt | Caudill | 2:10 | 28,815 | + | ||
| 73 | 73 | Saturday, Jun 26 | boxscore | SEA | CHW | L | 3 | 13 | 37-36 | 4 | 6.5 | Burns | Perry | 2:57 | 30,950 | - | |||
| 74 | 74 | Sunday, Jun 27 | boxscore | SEA | CHW | W | 6 | 5 | 38-36 | 4 | 6.5 | Nelson | Trout | Caudill | 2:48 | 19,359 | + | ||
| 75 | 75 | Tuesday, Jun 29 | boxscore | SEA | @ | TOR | W | 4 | 1 | 39-36 | 4 | 6.5 | Bannister | Clancy | Stanton | 2:07 | 13,097 | ++ | |
| 76 | 76 | Wednesday, Jun 30 | boxscore | SEA | @ | TOR | W | 10 | 4 | 40-36 | 4 | 5.5 | Beattie | Stieb | 2:22 | 12,339 | +++ | ||
| 77 | 77 | Thursday, Jul 1 | boxscore | SEA | @ | TOR | W | 4 | 3 | 41-36 | 4 | 4.5 | Perry | Leal | Caudill | 2:43 | 21,004 | ++++ | |
| 78 | 78 | Saturday, Jul 3 | boxscore | SEA | @ | CHW | L | 6 | 7 | 41-37 | 4 | 4.0 | Koosman | Stanton | 3:11 | 20,198 | - | ||
| 79 | 79 | Sunday, Jul 4 | boxscore | SEA | @ | CHW | W | 3 | 1 | 42-37 | 4 | 3.5 | Bannister | Dotson | Caudill | 3:07 | 21,762 | + | |
| 80 | 80 | Monday, Jul 5 | boxscore | SEA | NYY | W | 5 | 4 | 43-37 | 3 | 3.0 | Vande Berg | Frazier | Caudill | 3:10 | 36,471 | ++ | ||
| 81 | 81 | Tuesday, Jul 6 | boxscore | SEA | NYY | L | 7 | 8 | 12 | 43-38 | 3 | 4.0 | May | Vande Berg | 3:37 | 26,002 | - | ||
| 82 | 82 | Wednesday, Jul 7 | boxscore | SEA | BAL | W | 8 | 7 | 44-38 | 3 | 4.0 | Caudill | Stoddard | 3:11 | 12,405 | + | |||
| 83 | 83 | Thursday, Jul 8 | boxscore | SEA | BAL | W | 4 | 3 | 45-38 | 3 | 3.0 | Moore | Flanagan | Caudill | 2:39 | 13,538 | ++ | ||
| 84 | 84 | Friday, Jul 9 | boxscore | SEA | CLE | L | 4 | 7 | 45-39 | 3 | 3.0 | Denny | Bannister | Spillner | 2:42 | 14,437 | - | ||
| 85 | 85 | Saturday, Jul 10 | boxscore | SEA | CLE | L | 1 | 7 | 45-40 | 4 | 3.0 | Sutcliffe | Beattie | 2:59 | 23,893 | -- | |||
| 86 | 86 | Sunday, Jul 11 | boxscore | SEA | CLE | L | 3 | 4 | 45-41 | 4 | 4.0 | Barker | Caudill | 2:43 | 11,645 | --- | |||
| 87 | 87 | Thursday, Jul 15 | boxscore | SEA | @ | BAL | L | 2 | 3 | 45-42 | 4 | 5.0 | McGregor | Beattie | Stewart | 2:34 | 14,592 | ---- | |
| 88 | 88 | Friday, Jul 16 | boxscore | SEA | @ | BAL | W | 6 | 0 | 46-42 | 4 | 5.0 | Bannister | Martinez | 2:25 | 13,259 | + | ||
| 89 | 89 | Saturday, Jul 17 | boxscore | SEA | @ | BAL | L | 4 | 8 | 46-43 | 4 | 5.0 | Davis | Perry | 3:18 | 21,082 | - | ||
| 90 | 90 | Sunday, Jul 18 | boxscore | SEA | @ | BAL | L | 3 | 4 | 46-44 | 4 | 5.0 | Stewart | Moore | 2:49 | 15,169 | -- | ||
| 91 | 91 | Monday, Jul 19 | boxscore | SEA | @ | NYY | L | 3 | 5 | 46-45 | 4 | 6.0 | John | Nelson | Gossage | 2:29 | 16,408 | --- | |
| 92 | 92 | Tuesday, Jul 20 | boxscore | SEA | @ | NYY | W | 6 | 5 | 47-45 | 4 | 6.0 | Caudill | Rawley | 3:05 | 20,321 | + | ||
| 93 | 93 | Wednesday, Jul 21 | boxscore | SEA | @ | NYY | W | 6 | 5 | 12 | 48-45 | 4 | 5.0 | Caudill | Frazier | 3:35 | 23,531 | ++ | |
| 94 | 94 | Friday, Jul 23 | boxscore | SEA | @ | CLE | L | 3 | 4 | 11 | 48-46 | 4 | 5.0 | Spillner | Vande Berg | 3:28 | 13,352 | - | |
| 95 | 95 | Saturday, Jul 24 | boxscore | SEA | @ | CLE | W | 9 | 0 | 49-46 | 3 | 4.0 | Moore | Barker | 2:50 | 27,583 | + | ||
| 96 | 96 | Sunday, Jul 25 | boxscore | SEA | @ | CLE | L | 3 | 5 | 49-47 | 4 | 5.0 | Sorensen | Beattie | Spillner | 2:45 | 14,500 | - | |
| 97 | 97 | Monday, Jul 26 | boxscore | SEA | MIN | L | 4 | 10 | 49-48 | 4 | 5.0 | O'Connor | Bannister | 2:47 | 12,021 | -- | |||
| 98 | 98 | Tuesday, Jul 27 | boxscore | SEA | MIN | W | 9 | 7 | 50-48 | 3 | 5.0 | Clark | Pacella | Caudill | 2:47 | 19,753 | + | ||
| 99 | 99 | Wednesday, Jul 28 | boxscore | SEA | MIN | W | 6 | 2 | 51-48 | 3 | 5.0 | Perry | Castillo | Stanton | 2:32 | 14,703 | ++ | ||
| 100 | 100 | Thursday, Jul 29 | boxscore | SEA | @ | CAL | L | 1 | 3 | 51-49 | 3 | 6.0 | Renko | Moore | Sanchez | 2:31 | 26,512 | - | |
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 101 | 101 | Friday, Jul 30 | boxscore | SEA | @ | CAL | L | 0 | 2 | 51-50 | 3 | 7.0 | Forsch | Beattie | 1:55 | 31,581 | -- | ||
| 102 | 102 | Saturday, Jul 31 | boxscore | SEA | @ | CAL | W | 9 | 3 | 52-50 | 3 | 6.0 | Bannister | Goltz | 2:39 | 41,770 | + | ||
| 103 | 103 | Sunday, Aug 1 | boxscore | SEA | @ | CAL | L | 4 | 9 | 52-51 | 4 | 7.0 | Zahn | Bordi | 2:32 | 27,025 | - | ||
| 104 | 104 | Monday, Aug 2 | boxscore | SEA | @ | OAK | L | 5 | 6 | 52-52 | 4 | 7.0 | Keough | Stanton | 2:49 | 18,751 | -- | ||
| 105 | 105 | Tuesday, Aug 3 | boxscore | SEA | @ | OAK | W | 3 | 2 | 53-52 | 4 | 7.0 | Moore | Langford | Caudill | 2:39 | 10,318 | + | |
| 106 | 106 | Wednesday, Aug 4 | boxscore | SEA | @ | OAK | W | 5 | 2 | 54-52 | 4 | 6.5 | Beattie | Kingman | 2:28 | 0 | ++ | ||
| 107 | 107 | Wednesday, Aug 4 | boxscore | SEA | @ | OAK | L | 3 | 8 | 54-53 | 4 | 6.5 | McCatty | Bordi | Beard | 2:54 | 19,526 | - | |
| 108 | 108 | Friday, Aug 6 | boxscore | SEA | CAL | L | 9 | 11 | 54-54 | 4 | 7.5 | Sanchez | Bannister | Hassler | 3:15 | 20,074 | -- | ||
| 109 | 109 | Saturday, Aug 7 | boxscore | SEA | CAL | L | 1 | 3 | 54-55 | 4 | 8.0 | Witt | Perry | 2:30 | 40,775 | --- | |||
| 110 | 110 | Sunday, Aug 8 | boxscore | SEA | CAL | L | 5 | 9 | 54-56 | 4 | 9.0 | Renko | Moore | Hassler | 3:13 | 13,281 | ---- | ||
| 111 | 111 | Monday, Aug 9 | boxscore | SEA | OAK | L | 4 | 9 | 54-57 | 4 | 9.5 | Kingman | Beattie | 3:19 | 11,045 | ----- | |||
| 112 | 112 | Tuesday, Aug 10 | boxscore | SEA | OAK | W | 4 | 2 | 55-57 | 4 | 8.5 | Vande Berg | McCatty | 2:50 | 11,509 | + | |||
| 113 | 113 | Wednesday, Aug 11 | boxscore | SEA | OAK | W | 7 | 4 | 56-57 | 4 | 8.5 | Bannister | Langford | Caudill | 2:30 | 13,861 | ++ | ||
| 114 | 114 | Friday, Aug 13 | boxscore | SEA | @ | MIN | L | 1 | 3 | 56-58 | 4 | 10.0 | Castillo | Perry | 2:20 | 7,696 | - | ||
| 115 | 115 | Saturday, Aug 14 | boxscore | SEA | @ | MIN | W | 3 | 1 | 57-58 | 4 | 9.0 | Stanton | Havens | Caudill | 2:56 | 7,756 | + | |
| 116 | 116 | Sunday, Aug 15 | boxscore | SEA | @ | MIN | W | 10 | 2 | 58-58 | 4 | 8.5 | Beattie | Felton | 2:26 | 7,677 | ++ | ||
| 117 | 117 | Monday, Aug 16 | boxscore | SEA | @ | DET | L | 1 | 3 | 58-59 | 4 | 9.0 | Morris | Bannister | 2:05 | 14,290 | - | ||
| 118 | 118 | Tuesday, Aug 17 | boxscore | SEA | @ | DET | W | 5 | 4 | 59-59 | 4 | 9.5 | Clark | Wilcox | Caudill | 2:41 | 0 | + | |
| 119 | 119 | Tuesday, Aug 17 | boxscore | SEA | @ | DET | L | 2 | 3 | 59-60 | 4 | 9.5 | Pashnick | Stoddard | Tobik | 2:12 | 17,697 | - | |
| 120 | 120 | Wednesday, Aug 18 | boxscore | SEA | @ | DET | L | 2 | 7 | 59-61 | 4 | 9.5 | Petry | Perry | Underwood | 3:00 | 16,584 | -- | |
| 121 | 121 | Friday, Aug 20 | boxscore | SEA | MIL | L | 5 | 6 | 59-62 | 4 | 10.0 | Caldwell | Moore | Ladd | 3:04 | 13,029 | --- | ||
| 122 | 122 | Saturday, Aug 21 | boxscore | SEA | MIL | L | 2 | 3 | 59-63 | 4 | 11.0 | Medich | Clark | Fingers | 2:50 | 20,749 | ---- | ||
| 123 | 123 | Sunday, Aug 22 | boxscore | SEA | MIL | L | 5 | 8 | 59-64 | 4 | 12.0 | Slaton | Bannister | 2:24 | 9,290 | ----- | |||
| 124 | 124 | Monday, Aug 23 | boxscore | SEA | BOS | L | 3 | 4 | 59-65 | 4 | 13.0 | Clear | Caudill | 3:14 | 11,748 | ------ | |||
| 125 | 125 | Tuesday, Aug 24 | boxscore | SEA | BOS | L | 4 | 5 | 12 | 59-66 | 4 | 13.0 | Burgmeier | Caudill | 3:18 | 27,087 | ------- | ||
| 126 | 126 | Thursday, Aug 26 | boxscore | SEA | DET | W | 5 | 4 | 60-66 | 4 | 12.5 | Caudill | Morris | 2:49 | 7,907 | + | |||
| 127 | 127 | Friday, Aug 27 | boxscore | SEA | DET | L | 1 | 6 | 60-67 | 4 | 13.5 | Wilcox | Beattie | Tobik | 2:23 | 8,986 | - | ||
| 128 | 128 | Saturday, Aug 28 | boxscore | SEA | DET | W | 4 | 3 | 61-67 | 4 | 13.5 | Musselman | Tobik | 3:02 | 10,120 | + | |||
| 129 | 129 | Sunday, Aug 29 | boxscore | SEA | DET | L | 2 | 6 | 61-68 | 4 | 14.5 | Ujdur | Perry | 3:07 | 8,998 | - | |||
| 130 | 130 | Monday, Aug 30 | boxscore | SEA | @ | MIL | W | 3 | 2 | 10 | 62-68 | 4 | 14.5 | Vande Berg | Slaton | 3:06 | 13,008 | + | |
| 131 | 131 | Tuesday, Aug 31 | boxscore | SEA | @ | MIL | L | 2 | 8 | 62-69 | 4 | 14.5 | Caldwell | Clark | 2:55 | 8,631 | - | ||
| 132 | 132 | Wednesday, Sep 1 | boxscore | SEA | @ | MIL | L | 3 | 7 | 62-70 | 4 | 14.5 | Medich | Stanton | 2:39 | 10,782 | -- | ||
| 133 | 133 | Friday, Sep 3 | boxscore | SEA | @ | BOS | L | 8 | 10 | 62-71 | 4 | 15.5 | Tudor | Bannister | Stanley | 3:00 | 22,586 | --- | |
| 134 | 134 | Saturday, Sep 4 | boxscore | SEA | @ | BOS | W | 4 | 3 | 63-71 | 4 | 14.5 | Perry | Hurst | Caudill | 2:47 | 21,744 | + | |
| 135 | 135 | Sunday, Sep 5 | boxscore | SEA | @ | BOS | L | 5 | 6 | 10 | 63-72 | 4 | 14.5 | Clear | Caudill | 3:03 | 22,717 | - | |
| 136 | 136 | Monday, Sep 6 | boxscore | SEA | KCR | W | 6 | 2 | 64-72 | 4 | 13.5 | Bannister | Black | 2:34 | 10,030 | + | |||
| 137 | 137 | Tuesday, Sep 7 | boxscore | SEA | KCR | W | 5 | 2 | 65-72 | 4 | 12.5 | Moore | Splittorff | Caudill | 2:56 | 6,191 | ++ | ||
| 138 | 138 | Wednesday, Sep 8 | boxscore | SEA | KCR | L | 2 | 6 | 65-73 | 4 | 13.5 | Blue | Beattie | 2:56 | 7,925 | - | |||
| 139 | 139 | Friday, Sep 10 | boxscore | SEA | @ | TEX | W | 5 | 2 | 66-73 | 4 | 12.5 | Perry | Tanana | Vande Berg | 2:38 | 8,351 | + | |
| 140 | 140 | Saturday, Sep 11 | boxscore | SEA | @ | TEX | L | 2 | 5 | 66-74 | 4 | 13.5 | Hough | Bannister | 2:08 | 8,676 | - | ||
| 141 | 141 | Sunday, Sep 12 | boxscore | SEA | @ | TEX | W | 1 | 0 | 67-74 | 4 | 13.5 | Stoddard | Smithson | Caudill | 2:11 | 6,418 | + | |
| 142 | 142 | Monday, Sep 13 | boxscore | SEA | @ | KCR | L | 0 | 8 | 67-75 | 4 | 14.5 | Blue | Moore | 2:59 | 19,508 | - | ||
| 143 | 143 | Tuesday, Sep 14 | boxscore | SEA | @ | KCR | L | 2 | 5 | 67-76 | 4 | 15.5 | Castro | Beattie | Tufts | 2:47 | 16,826 | -- | |
| 144 | 144 | Wednesday, Sep 15 | boxscore | SEA | @ | KCR | L | 4 | 5 | 11 | 67-77 | 4 | 16.5 | Quisenberry | Caudill | 3:51 | 17,151 | --- | |
| 145 | 145 | Thursday, Sep 16 | boxscore | SEA | @ | KCR | W | 4 | 2 | 68-77 | 4 | 15.5 | Vande Berg | Leonard | Stanton | 2:38 | 16,809 | + | |
| 146 | 146 | Friday, Sep 17 | boxscore | SEA | TEX | W | 6 | 0 | 69-77 | 4 | 14.5 | Stoddard | Smithson | 2:20 | 5,535 | ++ | |||
| 147 | 147 | Saturday, Sep 18 | boxscore | SEA | TEX | L | 4 | 10 | 69-78 | 4 | 14.5 | Mason | Moore | Butcher | 3:02 | 10,174 | - | ||
| 148 | 148 | Sunday, Sep 19 | boxscore | SEA | TEX | W | 9 | 7 | 70-78 | 4 | 13.5 | Nunez | Honeycutt | Caudill | 2:38 | 6,339 | + | ||
| 149 | 149 | Monday, Sep 20 | boxscore | SEA | CHW | W | 5 | 2 | 71-78 | 4 | 13.5 | Clark | Hoyt | Vande Berg | 2:53 | 4,429 | ++ | ||
| 150 | 150 | Tuesday, Sep 21 | boxscore | SEA | CHW | W | 5 | 4 | 72-78 | 4 | 13.5 | Caudill | Hickey | 2:54 | 5,157 | +++ | |||
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 151 | 151 | Wednesday, Sep 22 | boxscore | SEA | CHW | W | 8 | 4 | 73-78 | 4 | 13.5 | Stoddard | Dotson | Vande Berg | 2:51 | 5,057 | ++++ | ||
| 152 | 152 | Thursday, Sep 23 | boxscore | SEA | CHW | L | 4 | 12 | 73-79 | 4 | 13.5 | Koosman | Moore | 2:37 | 6,543 | - | |||
| 153 | 153 | Friday, Sep 24 | boxscore | SEA | TOR | W | 3 | 2 | 74-79 | 4 | 13.5 | Vande Berg | Murray | 2:23 | 14,071 | + | |||
| 154 | 154 | Saturday, Sep 25 | boxscore | SEA | TOR | W | 7 | 0 | 75-79 | 4 | 13.5 | Clark | Leal | 2:20 | 18,818 | ++ | |||
| 155 | 155 | Sunday, Sep 26 | boxscore | SEA | TOR | L | 2 | 6 | 75-80 | 4 | 13.5 | Stieb | Bannister | 2:17 | 6,742 | - | |||
| 156 | 156 | Monday, Sep 27 | boxscore | SEA | @ | CHW | W | 8 | 4 | 76-80 | 4 | 14.0 | Perry | Koosman | 2:53 | 0 | + | ||
| 157 | 157 | Monday, Sep 27 | boxscore | SEA | @ | CHW | L | 1 | 4 | 76-81 | 4 | 14.0 | Kern | Stoddard | Barojas | 2:28 | 6,054 | - | |
| 158 | 158 | Tuesday, Sep 28 | boxscore | SEA | @ | CHW | L | 1 | 3 | 76-82 | 4 | 14.0 | Lamp | Moore | Barojas | 2:38 | 5,647 | -- | |
| 159 | 159 | Wednesday, Sep 29 | boxscore | SEA | @ | CHW | L | 5 | 6 | 76-83 | 4 | 14.0 | Hoyt | Nunez | Barojas | 2:52 | 19,531 | --- | |
| 160 | 160 | Friday, Oct 1 | boxscore | SEA | @ | TOR | L | 0 | 2 | 76-84 | 4 | 15.0 | Stieb | Bannister | 2:09 | 11,171 | ---- | ||
| 161 | 161 | Saturday, Oct 2 | boxscore | SEA | @ | TOR | L | 0 | 3 | 76-85 | 4 | 16.0 | Gott | Stoddard | Jackson | 2:33 | 12,472 | ----- | |
| 162 | 162 | Sunday, Oct 3 | boxscore | SEA | @ | TOR | L | 2 | 5 | 76-86 | 4 | 17.0 | Clancy | Caudill | 2:36 | 19,064 | ------ | ||
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak |
Rank and Games Behind are at the end of all games played on that date.