| West | W | L | Pct | GB |
| Oakland | 104 | 58 | .642 | -- |
| Minnesota | 91 | 71 | .562 | 13.0 |
| KC Royals | 84 | 77 | .522 | 19.5 |
| California | 75 | 87 | .463 | 29.0 |
| Chi White Sox | 71 | 90 | .441 | 32.5 |
| Texas | 70 | 91 | .435 | 33.5 |
| Seattle | 68 | 93 | .422 | 35.5 |
| Pitcher | Game | Season | Result | Decision | IP | H | R | ER | HR | BB | SO | WP | BK | HB | TBF | Pitches | Str | Bal | Str% | Career G | Career W-L | Feat Description | |
| Frank Dimichele | 1988-04-08 | 1988 | L 8-2 vs OAK | 1.1 | 2 | 2 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 6 | 15 | 10 | 5 | 67% | 1 | 0-0 | 1st career game | ||
| Ray Krawczyk | 1988-04-17 | 1988 | W 7-4 @ SEA | Sv | 1.1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 23 | 16 | 7 | 70% | 28 | 0-3 | 1st career save | |
| Bryan Harvey | 1988-04-29 | 1988 | W 9-5 @ TOR | W | 3 | 2 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 10 | 42 | 26 | 16 | 62% | 7 | 1-0 | 1st career win | |
| Bryan Harvey | 1988-05-09 | 1988 | W 2-1 vs CLE | Sv | 1.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4 | 19 | 12 | 7 | 63% | 11 | 1-0 | 1st career save | |
| Mike Witt | 1988-05-28 | 1988 | W 5-0 vs BAL | W | SHO | 9 | 7 | 0 | 0 | 0 | 3 | 5 | 0 | 0 | 0 | 34 | 98 | 67 | 31 | 68% | 248 | 89-79 | Complete game/Shutout |
| Sherman Corbett | 1988-05-29 | 1988 | L 3-2 vs BAL | 3 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 10 | 35 | 21 | 14 | 60% | 1 | 0-0 | 1st career game | ||
| Greg Minton | 1988-05-30 | 1988 | L 5-2 vs BOS | 1.1 | 2 | 2 | 2 | 0 | 2 | 1 | 0 | 0 | 0 | 7 | 26 | 14 | 12 | 54% | 600 | 50-57 | 600th career game | ||
| Dan Petry | 1988-06-10 | 1988 | W 1-0 vs KCA | W | SHO | 9 | 3 | 0 | 0 | 0 | 2 | 7 | 0 | 0 | 0 | 31 | 124 | 79 | 45 | 64% | 270 | 110-86 | Complete game/Shutout, 3-hitter |
| Mike Witt | 1988-06-14 | 1988 | W 3-0 vs TEX | W | SHO | 9 | 4 | 0 | 0 | 0 | 4 | 6 | 0 | 0 | 0 | 34 | 0 | 0 | 0 | -- | 251 | 91-80 | Complete game/Shutout |
| Kirk McCaskill | 1988-06-16 | 1988 | W 3-0 vs TEX | W | SHO | 9 | 3 | 0 | 0 | 0 | 3 | 10 | 0 | 1 | 0 | 34 | 0 | 0 | 0 | -- | 91 | 36-33 | 10 Strikeouts, Complete game/Shutout, 3-hitter |
| Donnie Moore | 1988-06-20 | 1988 | W 6-5 @ MIN | W | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 8 | 21 | 15 | 6 | 71% | 400 | 41-40 | 400th career game | |
| Stu Cliburn | 1988-06-22 | 1988 | L 3-1 @ MIN | 4 | 2 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 14 | 37 | 32 | 5 | 86% | 63 | 11-3 | Threw 86% strikes | ||
| Chuck Finley | 1988-06-24 | 1988 | L 5-4 vs MIL | 9 | 7 | 3 | 3 | 2 | 5 | 10 | 0 | 1 | 0 | 38 | 145 | 87 | 58 | 60% | 75 | 9-16 | 10 Strikeouts | ||
| Sherman Corbett | 1988-06-28 | 1988 | L 8-2 vs MIN | 1.2 | 3 | 2 | 2 | 0 | 1 | 4 | 0 | 0 | 0 | 8 | 36 | 20 | 16 | 56% | 9 | 0-0 | Struck out at least 2 batters per inning (1.2+ ip) | ||
| Terry Clark | 1988-07-07 | 1988 | W 7-1 @ CLE | W | 5 | 5 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 18 | 55 | 34 | 21 | 62% | 1 | 1-0 | 1st career win, 1st career game | |
| Donnie Moore | 1988-07-08 | 1988 | W 10-6 @ CLE | 1.2 | 6 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 28 | 22 | 6 | 79% | 407 | 41-40 | Threw 79% strikes | ||
| Kirk McCaskill | 1988-07-14 | 1988 | W 2-0 vs DET | W | SHO | 9 | 4 | 0 | 0 | 0 | 3 | 6 | 0 | 0 | 0 | 33 | 109 | 69 | 40 | 63% | 96 | 40-33 | Complete game/Shutout |
| Kirk McCaskill | 1988-07-25 | 1988 | W 2-1 vs OAK | W | CG | 9 | 3 | 1 | 1 | 0 | 2 | 7 | 0 | 0 | 0 | 32 | 108 | 71 | 37 | 66% | 98 | 41-33 | 3-hitter |
| Bryan Harvey | 1988-07-27 | 1988 | W 9-8 vs OAK | 3 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 9 | 29 | 22 | 7 | 76% | 37 | 4-3 | Threw 76% strikes | ||
| Sherman Corbett | 1988-07-30 | 1988 | W 15-14 @ CHA | W | 3.2 | 4 | 2 | 2 | 0 | 2 | 2 | 0 | 0 | 0 | 17 | 43 | 26 | 17 | 60% | 17 | 1-0 | 1st career win | |
| Stu Cliburn | 1988-07-30 | 1988 | W 15-14 @ CHA | 2.1 | 2 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 9 | 29 | 22 | 7 | 76% | 71 | 13-3 | Threw 76% strikes | ||
| Willie Fraser | 1988-08-10 | 1988 | W 2-1 vs SEA | W | CG | 9 | 1 | 1 | 1 | 1 | 2 | 3 | 0 | 0 | 1 | 32 | 117 | 77 | 40 | 66% | 61 | 18-20 | 1-hitter |
| Sherman Corbett | 1988-08-21 | 1988 | W 3-2 @ BAL | Sv | 2 | 3 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 9 | 37 | 27 | 10 | 73% | 24 | 2-0 | 1st career save | |
| Terry Clark | 1988-08-27 | 1988 | W 12-0 vs NYA | W | SHO | 9 | 7 | 0 | 0 | 0 | 3 | 5 | 0 | 0 | 0 | 36 | 126 | 81 | 45 | 64% | 10 | 6-2 | Complete game/Shutout |
| Mike Witt | 1988-09-08 | 1988 | W 4-3 @ TEX | W | 8 | 6 | 3 | 3 | 0 | 2 | 0 | 0 | 0 | 1 | 34 | 106 | 63 | 43 | 59% | 267 | 100-85 | 100th career win | |
| Vance Lovelace | 1988-09-10 | 1988 | L 3-2 @ TEX | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 5 | 1 | 4 | 20% | 1 | 0-0 | 1st career game | ||
| Dan Petry | 1988-09-15 | 1988 | L 2-1 vs KCA | L | CG | 9 | 3 | 2 | 2 | 1 | 1 | 3 | 0 | 0 | 0 | 31 | 105 | 68 | 37 | 65% | 276 | 110-88 | 3-hitter |
| Jack Lazorko | 1988-09-21 | 1988 | L 10-3 vs MIL | 2.1 | 4 | 3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 11 | 30 | 23 | 7 | 77% | 68 | 5-8 | Threw 77% strikes | ||