| 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 |
| Date | Pitcher | Hand | Age | Game Result | Opp | GS# | Career | Dec | IP | H | R | ER | HR | BB | SO | Pit | Bal | Str | Str% | W-L | ERA | WHIP |
| 1988-04-04 | Mike Witt | R | 28 | L 5-8 | @ CHA | 1 | 206 | L | 6.1 | 4 | 5 | 5 | 1 | 2 | 4 | 95 | 36 | 59 | 62% | 0-1 | 7.50 | 1.00 |
| 1988-04-06 | Dan Petry | R | 29 | W 4-2 | @ CHA | 1 | 246 | - | 6.0 | 4 | 0 | 0 | 0 | 1 | 5 | 82 | 28 | 54 | 66% | 0-0 | 0.00 | 0.83 |
| 1988-04-07 | Chuck Finley | L | 25 | L 1-2 | @ CHA | 1 | 4 | L | 6.1 | 5 | 2 | 1 | 0 | 2 | 5 | 112 | 45 | 67 | 60% | 0-1 | 1.50 | 1.17 |
| 1988-04-08 | Kirk McCaskill | R | 27 | W 2-8 | vs OAK | 1 | 76 | L | 5.2 | 6 | 4 | 4 | 2 | 3 | 2 | 93 | 44 | 49 | 53% | 0-1 | 6.00 | 1.50 |
| 1988-04-09 | Mike Witt | R | 28 | W 6-8 | vs OAK | 2 | 207 | - | 7.0 | 7 | 2 | 2 | 0 | 2 | 3 | 121 | 50 | 71 | 59% | 0-1 | 4.85 | 1.15 |
| 1988-04-10 | Willie Fraser | R | 24 | L 6-4 | vs OAK | 1 | 25 | W | 6.0 | 4 | 3 | 3 | 1 | 4 | 5 | 110 | 46 | 64 | 58% | 1-0 | 4.50 | 1.33 |
| 1988-04-12 | Dan Petry | R | 29 | L 15-6 | vs CHA | 2 | 247 | W | 5.1 | 6 | 4 | 4 | 1 | 2 | 1 | 67 | 23 | 44 | 66% | 1-0 | 3.27 | 1.18 |
| 1988-04-13 | Chuck Finley | L | 25 | L 5-2 | vs CHA | 2 | 5 | W | 8.0 | 5 | 2 | 2 | 1 | 3 | 7 | 103 | 41 | 62 | 60% | 1-1 | 1.93 | 1.07 |
| 1988-04-15 | Mike Witt | R | 28 | W 5-3 | @ SEA | 3 | 208 | W | 9.0 | 6 | 3 | 1 | 0 | 2 | 5 | 124 | 43 | 81 | 65% | 1-1 | 3.27 | 1.05 |
| 1988-04-16 | Willie Fraser | R | 24 | L 6-7 | @ SEA | 2 | 26 | - | 5.2 | 6 | 4 | 4 | 2 | 4 | 1 | 89 | 38 | 51 | 57% | 1-0 | 5.25 | 1.50 |
| 1988-04-17 | Kirk McCaskill | R | 27 | W 7-4 | @ SEA | 2 | 77 | W | 7.0 | 7 | 3 | 3 | 1 | 2 | 2 | 100 | 41 | 59 | 59% | 1-1 | 4.85 | 1.38 |
| 1988-04-18 | Dan Petry | R | 29 | L 4-5 | @ OAK | 3 | 248 | - | 7.0 | 7 | 3 | 3 | 0 | 4 | 3 | 112 | 45 | 67 | 60% | 1-0 | 3.50 | 1.33 |
| 1988-04-19 | Chuck Finley | L | 25 | L 3-8 | @ OAK | 3 | 6 | L | 7.2 | 6 | 7 | 7 | 0 | 4 | 5 | 115 | 49 | 66 | 57% | 1-2 | 4.09 | 1.14 |
| 1988-04-20 | Mike Witt | R | 28 | L 8-9 | @ OAK | 4 | 209 | - | 5.0 | 10 | 5 | 5 | 0 | 5 | 6 | 106 | 50 | 56 | 53% | 1-1 | 4.33 | 1.41 |
| 1988-04-21 | Willie Fraser | R | 24 | L 11-6 | vs SEA | 3 | 27 | W | 6.1 | 8 | 5 | 2 | 1 | 2 | 5 | 84 | 33 | 51 | 61% | 2-0 | 4.50 | 1.56 |
| 1988-04-22 | Kirk McCaskill | R | 27 | W 4-7 | vs SEA | 3 | 78 | L | 6.2 | 11 | 7 | 7 | 0 | 1 | 5 | 103 | 38 | 65 | 63% | 1-2 | 6.63 | 1.58 |
| 1988-04-23 | Dan Petry | R | 29 | W 4-11 | vs SEA | 4 | 249 | L | 6.1 | 6 | 8 | 8 | 2 | 5 | 3 | 118 | 52 | 66 | 56% | 1-1 | 5.40 | 1.40 |
| 1988-04-24 | Chuck Finley | L | 25 | W 2-4 | vs SEA | 4 | 7 | L | 8.0 | 6 | 4 | 3 | 0 | 3 | 3 | 115 | 44 | 71 | 62% | 1-3 | 3.90 | 1.13 |
| 1988-04-26 | Mike Witt | R | 28 | L 0-6 | @ DET | 5 | 210 | L | 5.0 | 7 | 6 | 6 | 0 | 2 | 4 | 104 | 40 | 64 | 62% | 1-2 | 5.34 | 1.47 |
| 1988-04-27 | Willie Fraser | R | 24 | W 4-3 | @ DET | 4 | 28 | W | 7.1 | 5 | 3 | 2 | 1 | 7 | 0 | 107 | 48 | 59 | 55% | 3-0 | 3.96 | 1.60 |
| 1988-04-28 | Kirk McCaskill | R | 27 | L 1-2 | @ DET | 4 | 79 | L | 8.0 | 4 | 2 | 1 | 0 | 6 | 3 | 123 | 55 | 68 | 55% | 1-3 | 5.00 | 1.48 |
| 1988-04-29 | Dan Petry | R | 29 | W 9-5 | @ TOR | 5 | 250 | - | 5.1 | 5 | 5 | 5 | 0 | 5 | 1 | 94 | 43 | 51 | 54% | 1-1 | 6.00 | 1.50 |
| 1988-04-30 | Chuck Finley | L | 25 | W 6-1 | @ TOR | 5 | 8 | W | 9.0 | 5 | 1 | 1 | 0 | 1 | 4 | 123 | 44 | 79 | 64% | 2-3 | 3.23 | 1.03 |
| 1988-05-01 | Mike Witt | R | 28 | L 4-6 | @ TOR | 6 | 211 | L | 3.1 | 8 | 6 | 5 | 1 | 1 | 2 | 82 | 35 | 47 | 57% | 1-3 | 6.00 | 1.56 |
| 1988-05-02 | Willie Fraser | R | 24 | L 0-3 | @ CLE | 5 | 29 | L | 4.1 | 7 | 3 | 2 | 0 | 4 | 1 | 74 | 33 | 41 | 55% | 3-1 | 3.90 | 1.70 |
| 1988-05-03 | Kirk McCaskill | R | 27 | W 8-4 | @ CLE | 5 | 80 | - | 4.1 | 9 | 4 | 4 | 0 | 4 | 2 | 98 | 43 | 55 | 56% | 1-3 | 5.34 | 1.66 |
| 1988-05-04 | Dan Petry | R | 29 | W 0-1 | vs DET | 6 | 251 | L | 9.0 | 8 | 1 | 1 | 1 | 3 | 4 | 134 | 52 | 82 | 61% | 1-2 | 4.85 | 1.44 |
| 1988-05-05 | Chuck Finley | L | 25 | W 5-8 | vs DET | 6 | 9 | L | 1.1 | 6 | 4 | 4 | 0 | 1 | 1 | 41 | 19 | 22 | 54% | 2-4 | 4.05 | 1.18 |
| 1988-05-06 | Mike Witt | R | 28 | W 2-3 | vs TOR | 7 | 212 | L | 9.0 | 6 | 3 | 3 | 1 | 2 | 7 | 120 | 42 | 78 | 65% | 1-4 | 5.40 | 1.42 |
| 1988-05-07 | Willie Fraser | R | 24 | W 4-9 | vs TOR | 6 | 30 | L | 6.1 | 8 | 6 | 6 | 2 | 1 | 4 | 113 | 39 | 74 | 65% | 3-2 | 4.75 | 1.67 |
| 1988-05-08 | Kirk McCaskill | R | 27 | L 8-1 | vs TOR | 6 | 81 | W | 7.0 | 5 | 1 | 0 | 0 | 1 | 7 | 127 | 43 | 84 | 66% | 2-3 | 4.38 | 1.51 |
| 1988-05-09 | Dan Petry | R | 29 | L 2-1 | vs CLE | 7 | 252 | W | 7.2 | 8 | 1 | 1 | 1 | 2 | 2 | 80 | 24 | 56 | 70% | 2-2 | 4.21 | 1.40 |
| 1988-05-10 | Chuck Finley | L | 25 | W 1-7 | vs CLE | 7 | 10 | L | 6.0 | 9 | 3 | 3 | 1 | 3 | 3 | 98 | 32 | 66 | 67% | 2-5 | 4.11 | 1.28 |
| 1988-05-11 | Mike Witt | R | 28 | W 3-4 | vs CLE | 8 | 213 | - | 10.0 | 7 | 3 | 2 | 0 | 1 | 9 | 147 | 49 | 98 | 67% | 1-4 | 4.75 | 1.31 |
| 1988-05-13 | Kirk McCaskill | R | 27 | W 5-4 | @ NYA | 7 | 82 | - | 6.0 | 8 | 4 | 2 | 1 | 3 | 5 | 120 | 52 | 68 | 57% | 2-3 | 4.20 | 1.56 |
| 1988-05-14 | Dan Petry | R | 30 | L 2-6 | @ NYA | 8 | 253 | L | 4.2 | 6 | 5 | 5 | 2 | 2 | 2 | 68 | 25 | 43 | 63% | 2-3 | 4.76 | 1.45 |
| 1988-05-15 | Chuck Finley | L | 25 | L 2-9 | @ NYA | 8 | 11 | L | 3.1 | 4 | 4 | 4 | 0 | 1 | 2 | 64 | 28 | 36 | 56% | 2-6 | 4.50 | 1.28 |
| 1988-05-18 | Mike Witt | R | 28 | L 7-8 | @ BAL | 9 | 214 | L | 6.1 | 6 | 8 | 8 | 1 | 8 | 4 | 111 | 52 | 59 | 53% | 1-5 | 5.46 | 1.41 |
| 1988-05-19 | Kirk McCaskill | R | 27 | W 2-1 | @ BAL | 8 | 83 | - | 8.0 | 8 | 1 | 1 | 0 | 5 | 1 | 122 | 53 | 69 | 57% | 2-3 | 3.74 | 1.57 |
| 1988-05-19 | Dan Petry | R | 30 | W 9-6 | @ BAL | 9 | 254 | - | 6.0 | 9 | 6 | 6 | 2 | 1 | 2 | 94 | 36 | 58 | 62% | 2-3 | 5.21 | 1.47 |
| 1988-05-20 | Chuck Finley | L | 25 | W 4-2 | @ BOS | 9 | 12 | - | 7.0 | 7 | 1 | 1 | 0 | 5 | 2 | 121 | 55 | 66 | 55% | 2-6 | 4.11 | 1.33 |
| 1988-05-21 | Ray Krawczyk | R | 29 | L 4-8 | @ BOS | 1 | 1 | L | 4.2 | 9 | 8 | 8 | 1 | 2 | 4 | 96 | 31 | 65 | 68% | 0-1 | 5.09 | 1.61 |
| 1988-05-22 | Willie Fraser | R | 24 | L 4-12 | @ BOS | 7 | 31 | L | 5.0 | 9 | 7 | 6 | 1 | 2 | 1 | 103 | 40 | 63 | 61% | 4-3 | 6.28 | 1.77 |
| 1988-05-23 | Mike Witt | R | 28 | W 2-5 | vs NYA | 10 | 215 | L | 6.1 | 7 | 4 | 4 | 0 | 6 | 1 | 122 | 50 | 72 | 59% | 1-6 | 5.51 | 1.48 |
| 1988-05-24 | Kirk McCaskill | R | 27 | W 3-5 | vs NYA | 9 | 84 | L | 7.0 | 9 | 5 | 5 | 2 | 1 | 5 | 108 | 45 | 63 | 58% | 2-4 | 4.05 | 1.55 |
| 1988-05-25 | Dan Petry | R | 30 | W 2-4 | vs NYA | 10 | 255 | - | 7.0 | 9 | 2 | 2 | 1 | 4 | 1 | 107 | 43 | 64 | 60% | 2-3 | 4.92 | 1.52 |
| 1988-05-27 | Chuck Finley | L | 26 | L 4-2 | vs BAL | 10 | 13 | W | 7.2 | 6 | 2 | 2 | 1 | 2 | 4 | 124 | 45 | 79 | 64% | 3-6 | 3.94 | 1.31 |
| 1988-05-28 | Mike Witt | R | 28 | L 5-0 | vs BAL | 11 | 216 | W | 9.0 | 7 | 0 | 0 | 0 | 3 | 5 | 98 | 31 | 67 | 68% | 2-6 | 4.86 | 1.43 |
| 1988-05-29 | Kirk McCaskill | R | 27 | W 2-3 | vs BAL | 10 | 85 | - | 4.0 | 4 | 1 | 1 | 0 | 0 | 4 | 55 | 17 | 38 | 69% | 2-4 | 3.94 | 1.52 |
| 1988-05-30 | Dan Petry | R | 30 | W 2-5 | vs BOS | 11 | 256 | L | 4.0 | 9 | 3 | 3 | 1 | 1 | 0 | 69 | 25 | 44 | 64% | 2-4 | 5.03 | 1.57 |
| 1988-05-31 | Willie Fraser | R | 24 | W 3-4 | vs BOS | 8 | 32 | L | 6.2 | 6 | 4 | 4 | 0 | 5 | 3 | 111 | 42 | 69 | 62% | 4-4 | 6.12 | 1.74 |
| 1988-06-02 | Chuck Finley | L | 26 | L 4-9 | @ MIL | 11 | 14 | L | 6.0 | 6 | 5 | 5 | 0 | 4 | 4 | 103 | 40 | 63 | 61% | 3-7 | 4.24 | 1.34 |
| 1988-06-03 | Mike Witt | R | 28 | L 2-8 | @ MIL | 12 | 217 | L | 5.2 | 13 | 8 | 8 | 2 | 1 | 3 | 103 | 43 | 60 | 58% | 2-7 | 5.38 | 1.50 |
| 1988-06-04 | Dan Petry | R | 30 | L 0-1 | @ MIL | 12 | 257 | L | 8.0 | 3 | 1 | 1 | 1 | 1 | 6 | 94 | 31 | 63 | 67% | 2-5 | 4.62 | 1.46 |
| 1988-06-05 | Kirk McCaskill | R | 27 | W 6-5 | @ MIL | 11 | 86 | - | 6.0 | 5 | 2 | 2 | 2 | 3 | 9 | 110 | 52 | 58 | 53% | 2-4 | 3.86 | 1.50 |
| 1988-06-06 | Willie Fraser | R | 24 | L 4-6 | @ TEX | 9 | 33 | L | 5.2 | 7 | 6 | 5 | 1 | 5 | 5 | 128 | 59 | 69 | 54% | 4-5 | 6.27 | 1.77 |
| 1988-06-07 | Chuck Finley | L | 26 | W 1-0 | @ TEX | 12 | 15 | W | 8.2 | 5 | 0 | 0 | 0 | 0 | 7 | 117 | 39 | 78 | 67% | 4-7 | 3.76 | 1.25 |
| 1988-06-08 | Mike Witt | R | 28 | W 5-2 | @ TEX | 13 | 218 | W | 8.0 | 6 | 2 | 2 | 0 | 3 | 8 | 121 | 43 | 78 | 64% | 3-7 | 5.10 | 1.47 |
| 1988-06-10 | Dan Petry | R | 30 | L 1-0 | vs KCA | 13 | 258 | W | 9.0 | 3 | 0 | 0 | 0 | 2 | 7 | 124 | 45 | 79 | 64% | 3-5 | 4.13 | 1.36 |
| 1988-06-11 | Kirk McCaskill | R | 27 | W 0-7 | vs KCA | 12 | 87 | L | 6.1 | 8 | 4 | 4 | 0 | 5 | 6 | 137 | 58 | 79 | 58% | 2-5 | 4.03 | 1.55 |
| 1988-06-12 | Willie Fraser | R | 24 | W 4-6 | vs KCA | 10 | 34 | L | 6.1 | 7 | 4 | 4 | 1 | 2 | 3 | 90 | 33 | 57 | 63% | 4-6 | 6.24 | 1.74 |
| 1988-06-13 | Chuck Finley | L | 26 | W 3-5 | vs KCA | 13 | 16 | L | 5.0 | 7 | 5 | 4 | 0 | 2 | 1 | 78 | 33 | 45 | 58% | 4-8 | 3.96 | 1.29 |
| 1988-06-14 | Mike Witt | R | 28 | L 3-0 | vs TEX | 14 | 219 | W | 9.0 | 4 | 0 | 0 | 0 | 4 | 6 | 0 | 0 | 0 | -- | 4-7 | 4.64 | 1.41 |
| 1988-06-15 | Dan Petry | R | 30 | W 3-6 | vs TEX | 14 | 259 | - | 7.0 | 5 | 3 | 3 | 1 | 3 | 3 | 101 | 40 | 61 | 60% | 3-5 | 4.11 | 1.35 |
| 1988-06-16 | Kirk McCaskill | R | 27 | L 3-0 | vs TEX | 13 | 88 | W | 9.0 | 3 | 0 | 0 | 0 | 3 | 10 | 0 | 0 | 0 | -- | 3-5 | 3.60 | 1.46 |
| 1988-06-17 | Willie Fraser | R | 24 | W 9-7 | @ KCA | 11 | 35 | - | 5.2 | 9 | 6 | 6 | 0 | 1 | 1 | 109 | 43 | 66 | 61% | 4-6 | 6.49 | 1.74 |
| 1988-06-18 | Chuck Finley | L | 26 | W 6-3 | @ KCA | 14 | 17 | - | 5.0 | 6 | 3 | 3 | 0 | 1 | 2 | 75 | 30 | 45 | 60% | 4-8 | 4.04 | 1.29 |
| 1988-06-19 | Mike Witt | R | 28 | W 5-0 | @ KCA | 15 | 220 | W | 8.2 | 8 | 0 | 0 | 0 | 2 | 5 | 122 | 47 | 75 | 61% | 5-7 | 4.25 | 1.39 |
| 1988-06-20 | Dan Petry | R | 30 | W 6-5 | @ MIN | 15 | 260 | - | 5.0 | 4 | 1 | 1 | 0 | 2 | 0 | 71 | 33 | 38 | 54% | 3-5 | 3.99 | 1.34 |
| 1988-06-21 | Kirk McCaskill | R | 27 | W 5-4 | @ MIN | 14 | 89 | - | 6.2 | 5 | 4 | 4 | 0 | 1 | 4 | 84 | 32 | 52 | 62% | 3-5 | 3.72 | 1.41 |
| 1988-06-22 | Willie Fraser | R | 24 | L 1-3 | @ MIN | 12 | 36 | L | 3.0 | 3 | 3 | 2 | 0 | 0 | 1 | 52 | 19 | 33 | 63% | 4-7 | 6.46 | 1.70 |
| 1988-06-24 | Chuck Finley | L | 26 | W 4-5 | vs MIL | 15 | 18 | - | 9.0 | 7 | 3 | 3 | 2 | 5 | 10 | 145 | 58 | 87 | 60% | 4-8 | 3.95 | 1.30 |
| 1988-06-25 | Mike Witt | R | 28 | L 7-3 | vs MIL | 16 | 221 | W | 9.0 | 10 | 3 | 2 | 0 | 0 | 7 | 102 | 26 | 76 | 75% | 6-7 | 4.08 | 1.37 |
| 1988-06-26 | Willie Fraser | R | 24 | L 4-2 | vs MIL | 13 | 37 | W | 7.0 | 4 | 2 | 1 | 1 | 1 | 5 | 93 | 25 | 68 | 73% | 5-7 | 6.00 | 1.62 |
| 1988-06-27 | Kirk McCaskill | R | 27 | L 16-7 | vs MIN | 15 | 90 | W | 5.0 | 10 | 4 | 4 | 1 | 1 | 5 | 102 | 39 | 63 | 62% | 4-5 | 3.90 | 1.45 |
| 1988-06-28 | Jack Lazorko | R | 32 | W 2-8 | vs MIN | 1 | 13 | L | 4.0 | 8 | 4 | 3 | 1 | 2 | 4 | 67 | 23 | 44 | 66% | 0-1 | 6.75 | 2.50 |
| 1988-06-29 | Chuck Finley | L | 26 | L 2-1 | vs MIN | 16 | 19 | W | 7.0 | 4 | 1 | 1 | 1 | 3 | 4 | 95 | 41 | 54 | 57% | 5-8 | 3.77 | 1.28 |
| 1988-07-01 | Mike Witt | R | 28 | L 0-11 | @ DET | 17 | 222 | L | 3.0 | 7 | 7 | 3 | 1 | 3 | 1 | 64 | 26 | 38 | 59% | 6-8 | 4.20 | 1.42 |
| 1988-07-02 | Willie Fraser | R | 24 | L 1-6 | @ DET | 14 | 38 | L | 7.0 | 7 | 6 | 6 | 3 | 3 | 5 | 124 | 49 | 75 | 60% | 5-8 | 6.14 | 1.60 |
| 1988-07-03 | Kirk McCaskill | R | 27 | W 10-4 | @ DET | 16 | 91 | W | 7.1 | 8 | 2 | 0 | 0 | 1 | 7 | 129 | 45 | 84 | 65% | 5-5 | 3.63 | 1.44 |
| 1988-07-04 | Jack Lazorko | R | 32 | W 11-6 | @ TOR | 2 | 14 | - | 4.1 | 7 | 5 | 5 | 2 | 4 | 3 | 80 | 32 | 48 | 60% | 0-1 | 9.00 | 2.63 |
| 1988-07-05 | Mike Witt | R | 28 | L 1-4 | @ TOR | 18 | 223 | L | 8.0 | 9 | 4 | 4 | 0 | 1 | 2 | 109 | 41 | 68 | 62% | 6-9 | 4.22 | 1.41 |
| 1988-07-06 | Willie Fraser | R | 24 | W 5-4 | @ TOR | 15 | 39 | - | 7.0 | 5 | 2 | 2 | 1 | 2 | 3 | 98 | 40 | 58 | 59% | 5-8 | 5.87 | 1.55 |
| 1988-07-07 | Terry Clark | R | 28 | W 7-1 | @ CLE | 1 | 1 | W | 5.0 | 5 | 1 | 1 | 0 | 0 | 1 | 55 | 21 | 34 | 62% | 1-0 | 1.80 | 1.00 |
| 1988-07-08 | Kirk McCaskill | R | 27 | W 10-6 | @ CLE | 17 | 92 | W | 7.0 | 6 | 4 | 3 | 0 | 1 | 1 | 92 | 34 | 58 | 63% | 6-5 | 3.65 | 1.41 |
| 1988-07-09 | Mike Witt | R | 28 | W 8-5 | @ CLE | 19 | 224 | - | 6.1 | 9 | 4 | 3 | 0 | 0 | 3 | 84 | 26 | 58 | 69% | 6-9 | 4.23 | 1.41 |
| 1988-07-10 | Willie Fraser | R | 24 | W 7-5 | @ CLE | 16 | 40 | W | 6.0 | 8 | 2 | 2 | 1 | 2 | 5 | 127 | 41 | 86 | 68% | 6-8 | 5.69 | 1.56 |
| 1988-07-14 | Kirk McCaskill | R | 27 | L 2-0 | vs DET | 18 | 93 | W | 9.0 | 4 | 0 | 0 | 0 | 3 | 6 | 109 | 40 | 69 | 63% | 7-5 | 3.38 | 1.37 |
| 1988-07-15 | Mike Witt | R | 28 | L 6-4 | vs DET | 20 | 225 | W | 7.1 | 8 | 4 | 4 | 1 | 1 | 2 | 104 | 34 | 70 | 67% | 7-9 | 4.28 | 1.40 |
| 1988-07-16 | Willie Fraser | R | 24 | W 1-10 | vs DET | 17 | 41 | L | 5.0 | 6 | 5 | 5 | 2 | 1 | 0 | 74 | 30 | 44 | 59% | 6-9 | 5.85 | 1.55 |
| 1988-07-17 | Terry Clark | R | 28 | L 4-0 | vs DET | 2 | 2 | W | 8.0 | 5 | 0 | 0 | 0 | 1 | 3 | 104 | 37 | 67 | 64% | 2-0 | 0.69 | 0.85 |
| 1988-07-18 | Chuck Finley | L | 26 | W 2-12 | vs TOR | 17 | 20 | L | 2.2 | 9 | 8 | 8 | 0 | 1 | 1 | 58 | 26 | 32 | 55% | 5-9 | 4.33 | 1.33 |
| 1988-07-19 | Kirk McCaskill | R | 27 | W 6-7 | vs TOR | 19 | 94 | - | 6.2 | 11 | 6 | 6 | 0 | 3 | 3 | 129 | 53 | 76 | 59% | 7-5 | 3.61 | 1.40 |
| 1988-07-20 | Willie Fraser | R | 24 | L 7-6 | vs TOR | 18 | 42 | - | 4.0 | 7 | 4 | 4 | 1 | 4 | 3 | 92 | 37 | 55 | 60% | 6-9 | 5.97 | 1.60 |
| 1988-07-22 | Terry Clark | R | 28 | L 7-4 | vs CLE | 3 | 3 | W | 7.1 | 7 | 2 | 2 | 1 | 1 | 4 | 113 | 39 | 74 | 65% | 3-0 | 1.35 | 0.95 |
| 1988-07-23 | Chuck Finley | L | 26 | L 5-4 | vs CLE | 18 | 21 | - | 1.0 | 3 | 3 | 3 | 0 | 2 | 1 | 34 | 16 | 18 | 53% | 5-9 | 4.54 | 1.37 |
| 1988-07-24 | Willie Fraser | R | 24 | W 2-9 | vs CLE | 19 | 43 | L | 4.0 | 8 | 6 | 6 | 2 | 1 | 1 | 76 | 31 | 45 | 59% | 6-10 | 6.24 | 1.62 |
| 1988-07-25 | Kirk McCaskill | R | 27 | L 2-1 | vs OAK | 20 | 95 | W | 9.0 | 3 | 1 | 1 | 0 | 2 | 7 | 108 | 37 | 71 | 66% | 8-5 | 3.44 | 1.35 |
| 1988-07-26 | Mike Witt | R | 28 | W 2-6 | vs OAK | 21 | 226 | L | 7.0 | 6 | 6 | 2 | 1 | 2 | 6 | 100 | 40 | 60 | 60% | 7-10 | 4.20 | 1.39 |
| 1988-07-27 | Terry Clark | R | 28 | L 9-8 | vs OAK | 4 | 4 | - | 5.0 | 8 | 7 | 7 | 1 | 2 | 3 | 82 | 30 | 52 | 63% | 3-0 | 3.60 | 1.16 |
| 1988-07-28 | Chuck Finley | L | 26 | W 7-6 | @ CHA | 19 | 22 | - | 6.0 | 7 | 4 | 4 | 1 | 2 | 6 | 91 | 29 | 62 | 68% | 5-9 | 4.62 | 1.37 |
| 1988-07-29 | Willie Fraser | R | 24 | W 4-2 | @ CHA | 20 | 44 | W | 6.2 | 5 | 2 | 2 | 0 | 3 | 4 | 130 | 51 | 79 | 61% | 7-10 | 6.08 | 1.61 |
| 1988-07-30 | Kirk McCaskill | R | 27 | W 15-14 | @ CHA | 21 | 96 | - | 2.0 | 7 | 8 | 7 | 0 | 4 | 2 | 66 | 31 | 35 | 53% | 8-5 | 3.85 | 1.41 |
| 1988-07-31 | Mike Witt | R | 28 | W 7-5 | @ CHA | 22 | 227 | W | 6.0 | 12 | 5 | 5 | 0 | 3 | 2 | 112 | 51 | 61 | 54% | 8-10 | 4.32 | 1.44 |
| 1988-08-01 | Terry Clark | R | 28 | W 8-4 | @ SEA | 5 | 5 | W | 9.0 | 10 | 4 | 4 | 1 | 2 | 2 | 108 | 37 | 71 | 66% | 4-0 | 3.71 | 1.21 |
| 1988-08-02 | Chuck Finley | L | 26 | W 10-2 | @ SEA | 20 | 23 | W | 9.0 | 7 | 2 | 2 | 1 | 3 | 4 | 140 | 54 | 86 | 61% | 6-9 | 4.43 | 1.35 |
| 1988-08-03 | Kirk McCaskill | R | 27 | L 7-8 | @ SEA | 22 | 97 | - | 1.0 | 6 | 7 | 7 | 0 | 2 | 0 | 54 | 26 | 28 | 52% | 8-5 | 4.27 | 1.45 |
| 1988-08-05 | Mike Witt | R | 28 | L 6-5 | vs CHA | 23 | 228 | - | 8.0 | 7 | 4 | 4 | 1 | 2 | 8 | 124 | 49 | 75 | 60% | 8-10 | 4.33 | 1.42 |
| 1988-08-05 | Willie Fraser | R | 24 | W 4-5 | vs CHA | 21 | 45 | - | 7.0 | 4 | 4 | 4 | 1 | 4 | 2 | 116 | 42 | 74 | 64% | 7-10 | 6.02 | 1.58 |
| 1988-08-06 | Terry Clark | R | 28 | L 7-5 | vs CHA | 6 | 6 | W | 6.0 | 8 | 3 | 3 | 2 | 3 | 1 | 101 | 39 | 62 | 61% | 5-0 | 3.83 | 1.30 |
| 1988-08-07 | Chuck Finley | L | 26 | W 3-6 | vs CHA | 21 | 24 | L | 7.0 | 6 | 5 | 5 | 2 | 2 | 5 | 96 | 33 | 63 | 66% | 6-10 | 4.53 | 1.34 |
| 1988-08-08 | Kirk McCaskill | R | 27 | W 3-4 | vs SEA | 23 | 98 | L | 7.2 | 8 | 4 | 4 | 0 | 6 | 2 | 145 | 64 | 81 | 56% | 8-6 | 4.32 | 1.48 |
| 1988-08-09 | Mike Witt | R | 28 | W 1-4 | vs SEA | 24 | 229 | L | 9.0 | 10 | 4 | 4 | 1 | 0 | 7 | 132 | 39 | 93 | 70% | 8-11 | 4.32 | 1.40 |
| 1988-08-10 | Willie Fraser | R | 24 | L 2-1 | vs SEA | 22 | 46 | W | 9.0 | 1 | 1 | 1 | 1 | 2 | 3 | 117 | 40 | 77 | 66% | 8-10 | 5.68 | 1.50 |
| 1988-08-11 | Terry Clark | R | 28 | L 2-7 | @ OAK | 7 | 7 | L | 7.1 | 7 | 3 | 3 | 0 | 1 | 5 | 99 | 35 | 64 | 65% | 5-1 | 3.75 | 1.25 |
| 1988-08-12 | Chuck Finley | L | 26 | L 0-4 | @ OAK | 22 | 25 | L | 7.0 | 9 | 4 | 4 | 0 | 3 | 4 | 103 | 44 | 59 | 57% | 6-11 | 4.57 | 1.36 |
| 1988-08-13 | Stu Cliburn | R | 32 | L 2-6 | @ OAK | 1 | 1 | L | 6.0 | 6 | 5 | 3 | 1 | 5 | 4 | 115 | 48 | 67 | 58% | 4-1 | 3.68 | 1.33 |
| 1988-08-14 | Mike Witt | R | 28 | W 6-4 | @ OAK | 25 | 230 | W | 7.0 | 9 | 4 | 4 | 1 | 3 | 1 | 129 | 52 | 77 | 60% | 9-11 | 4.35 | 1.42 |
| 1988-08-16 | Willie Fraser | R | 24 | W 15-6 | @ NYA | 23 | 47 | W | 6.1 | 8 | 6 | 6 | 5 | 0 | 2 | 102 | 40 | 62 | 61% | 9-10 | 5.79 | 1.48 |
| 1988-08-17 | Terry Clark | R | 28 | L 7-11 | @ NYA | 8 | 8 | - | 3.2 | 10 | 7 | 7 | 2 | 4 | 5 | 98 | 44 | 54 | 55% | 5-1 | 4.76 | 1.45 |
| 1988-08-18 | Chuck Finley | L | 26 | W 7-1 | @ NYA | 23 | 26 | W | 5.2 | 7 | 1 | 1 | 1 | 2 | 1 | 97 | 40 | 57 | 59% | 7-11 | 4.47 | 1.38 |
| 1988-08-19 | Mike Witt | R | 28 | L 1-3 | @ BAL | 26 | 231 | L | 8.0 | 7 | 3 | 3 | 0 | 5 | 3 | 134 | 67 | 67 | 50% | 9-12 | 4.31 | 1.42 |
| 1988-08-20 | Jack Lazorko | R | 32 | L 2-3 | @ BAL | 3 | 15 | - | 6.2 | 5 | 1 | 1 | 0 | 2 | 1 | 97 | 43 | 54 | 56% | 0-1 | 5.40 | 1.87 |
| 1988-08-21 | Willie Fraser | R | 24 | W 3-2 | @ BAL | 24 | 48 | W | 7.0 | 4 | 1 | 1 | 1 | 2 | 3 | 111 | 46 | 65 | 59% | 10-10 | 5.57 | 1.45 |
| 1988-08-22 | Terry Clark | R | 28 | L 2-6 | @ BOS | 9 | 9 | L | 6.2 | 8 | 6 | 6 | 0 | 6 | 3 | 117 | 48 | 69 | 59% | 5-2 | 5.12 | 1.52 |
| 1988-08-23 | Chuck Finley | L | 26 | L 2-10 | @ BOS | 24 | 27 | L | 4.2 | 5 | 3 | 3 | 1 | 4 | 2 | 104 | 48 | 56 | 54% | 7-12 | 4.50 | 1.39 |
| 1988-08-24 | Mike Witt | R | 28 | W 4-3 | @ BOS | 27 | 232 | W | 8.0 | 6 | 3 | 3 | 0 | 2 | 3 | 129 | 46 | 83 | 64% | 10-12 | 4.27 | 1.40 |
| 1988-08-26 | Willie Fraser | R | 24 | L 7-6 | vs NYA | 25 | 49 | - | 2.1 | 6 | 6 | 5 | 0 | 2 | 2 | 63 | 29 | 34 | 54% | 10-10 | 5.80 | 1.48 |
| 1988-08-27 | Terry Clark | R | 28 | L 12-0 | vs NYA | 10 | 10 | W | 9.0 | 7 | 0 | 0 | 0 | 3 | 5 | 126 | 45 | 81 | 64% | 6-2 | 4.43 | 1.46 |
| 1988-08-28 | Chuck Finley | L | 26 | L 13-2 | vs NYA | 25 | 28 | W | 5.2 | 6 | 0 | 0 | 0 | 2 | 2 | 78 | 33 | 45 | 58% | 8-12 | 4.32 | 1.39 |
| 1988-08-29 | Mike Witt | R | 28 | L 4-2 | vs BAL | 28 | 233 | W | 9.0 | 9 | 2 | 2 | 0 | 1 | 1 | 109 | 43 | 66 | 61% | 11-12 | 4.17 | 1.39 |
| 1988-08-30 | Dan Petry | R | 30 | W 2-5 | vs BAL | 16 | 261 | L | 2.2 | 5 | 4 | 4 | 1 | 4 | 1 | 69 | 33 | 36 | 52% | 3-6 | 4.23 | 1.39 |
| 1988-08-31 | Willie Fraser | R | 24 | L 7-5 | vs BAL | 26 | 50 | - | 6.1 | 11 | 4 | 4 | 1 | 1 | 0 | 84 | 29 | 55 | 65% | 10-10 | 5.81 | 1.50 |
| 1988-09-01 | Terry Clark | R | 28 | W 2-4 | vs BOS | 11 | 11 | L | 6.2 | 12 | 4 | 4 | 1 | 1 | 1 | 99 | 31 | 68 | 69% | 6-3 | 4.50 | 1.50 |
| 1988-09-02 | Chuck Finley | L | 26 | L 3-2 | vs BOS | 26 | 29 | W | 7.0 | 7 | 2 | 2 | 1 | 4 | 0 | 113 | 47 | 66 | 58% | 9-12 | 4.25 | 1.40 |
| 1988-09-03 | Mike Witt | R | 28 | L 2-1 | vs BOS | 29 | 234 | W | 9.0 | 8 | 1 | 1 | 1 | 2 | 6 | 132 | 50 | 82 | 62% | 12-12 | 4.03 | 1.38 |
| 1988-09-04 | Dan Petry | R | 30 | W 5-6 | vs BOS | 17 | 262 | - | 5.2 | 8 | 3 | 2 | 0 | 1 | 4 | 85 | 29 | 56 | 66% | 3-6 | 4.16 | 1.40 |
| 1988-09-05 | Willie Fraser | R | 24 | W 4-2 | @ KCA | 27 | 51 | W | 8.1 | 10 | 2 | 2 | 0 | 2 | 5 | 130 | 57 | 73 | 56% | 11-10 | 5.60 | 1.49 |
| 1988-09-06 | Terry Clark | R | 28 | L 2-3 | @ KCA | 12 | 12 | - | 8.0 | 5 | 1 | 1 | 0 | 0 | 1 | 93 | 27 | 66 | 71% | 6-3 | 4.17 | 1.41 |
| 1988-09-07 | Chuck Finley | L | 26 | L 2-4 | @ KCA | 27 | 30 | L | 7.2 | 9 | 4 | 4 | 1 | 5 | 3 | 134 | 59 | 75 | 56% | 9-13 | 4.29 | 1.42 |
| 1988-09-08 | Mike Witt | R | 28 | W 4-3 | @ TEX | 30 | 235 | W | 8.0 | 6 | 3 | 3 | 0 | 2 | 0 | 106 | 43 | 63 | 59% | 13-12 | 4.01 | 1.36 |
| 1988-09-09 | Dan Petry | R | 30 | W 5-3 | @ TEX | 18 | 263 | - | 6.0 | 6 | 2 | 2 | 0 | 2 | 3 | 87 | 31 | 56 | 64% | 3-6 | 4.10 | 1.39 |
| 1988-09-10 | Willie Fraser | R | 24 | L 2-3 | @ TEX | 28 | 52 | - | 6.2 | 4 | 1 | 1 | 0 | 3 | 0 | 115 | 48 | 67 | 58% | 11-10 | 5.45 | 1.48 |
| 1988-09-11 | Terry Clark | R | 28 | L 3-8 | @ TEX | 13 | 13 | L | 7.2 | 11 | 6 | 6 | 0 | 5 | 3 | 113 | 54 | 59 | 52% | 6-4 | 4.45 | 1.48 |
| 1988-09-13 | Chuck Finley | L | 26 | W 3-4 | vs KCA | 28 | 31 | L | 7.0 | 6 | 4 | 2 | 0 | 3 | 3 | 109 | 46 | 63 | 58% | 9-14 | 4.22 | 1.42 |
| 1988-09-14 | Mike Witt | R | 28 | W 2-4 | vs KCA | 31 | 236 | L | 9.0 | 9 | 4 | 4 | 0 | 3 | 3 | 112 | 35 | 77 | 69% | 13-13 | 4.01 | 1.36 |
| 1988-09-15 | Dan Petry | R | 30 | W 1-2 | vs KCA | 19 | 264 | L | 9.0 | 3 | 2 | 2 | 1 | 1 | 3 | 105 | 37 | 68 | 65% | 3-7 | 3.94 | 1.32 |
| 1988-09-16 | Willie Fraser | R | 24 | L 7-2 | vs TEX | 29 | 53 | W | 6.1 | 4 | 2 | 2 | 0 | 4 | 4 | 100 | 44 | 56 | 56% | 12-10 | 5.34 | 1.47 |
| 1988-09-17 | Terry Clark | R | 28 | W 4-7 | vs TEX | 14 | 14 | L | 0.2 | 5 | 4 | 4 | 0 | 0 | 0 | 19 | 5 | 14 | 74% | 6-5 | 4.80 | 1.52 |
| 1988-09-18 | Chuck Finley | L | 26 | L 6-5 | vs TEX | 29 | 32 | - | 6.0 | 4 | 1 | 1 | 0 | 3 | 7 | 93 | 40 | 53 | 57% | 9-14 | 4.13 | 1.41 |
| 1988-09-19 | Mike Witt | R | 28 | W 2-4 | vs MIL | 32 | 237 | L | 6.1 | 10 | 4 | 4 | 0 | 3 | 0 | 90 | 30 | 60 | 67% | 13-14 | 4.04 | 1.38 |
| 1988-09-20 | Dan Petry | R | 30 | W 5-6 | vs MIL | 20 | 265 | - | 7.0 | 8 | 4 | 3 | 1 | 5 | 4 | 116 | 47 | 69 | 59% | 3-7 | 3.94 | 1.35 |
| 1988-09-21 | Willie Fraser | R | 24 | W 3-10 | vs MIL | 30 | 54 | L | 5.2 | 5 | 5 | 3 | 0 | 2 | 2 | 95 | 36 | 59 | 62% | 12-11 | 5.34 | 1.47 |
| 1988-09-22 | Terry Clark | R | 28 | W 2-6 | vs MIN | 15 | 15 | L | 4.0 | 12 | 5 | 5 | 0 | 1 | 2 | 74 | 27 | 47 | 64% | 6-6 | 5.07 | 1.60 |
| 1988-09-23 | Chuck Finley | L | 26 | W 1-7 | vs MIN | 30 | 33 | L | 7.0 | 7 | 4 | 4 | 0 | 2 | 5 | 128 | 52 | 76 | 59% | 9-15 | 4.16 | 1.40 |
| 1988-09-24 | Mike Witt | R | 28 | W 2-3 | vs MIN | 33 | 238 | L | 9.0 | 6 | 3 | 3 | 0 | 5 | 3 | 127 | 53 | 74 | 58% | 13-15 | 4.00 | 1.37 |
| 1988-09-25 | Dan Petry | R | 30 | W 2-6 | vs MIN | 21 | 266 | L | 7.2 | 9 | 5 | 5 | 1 | 3 | 6 | 117 | 46 | 71 | 61% | 3-8 | 4.07 | 1.37 |
| 1988-09-27 | Willie Fraser | R | 24 | L 5-6 | @ MIL | 31 | 55 | L | 4.1 | 7 | 6 | 6 | 0 | 1 | 3 | 70 | 28 | 42 | 60% | 12-12 | 5.49 | 1.47 |
| 1988-09-28 | Chuck Finley | L | 26 | L 3-4 | @ MIL | 31 | 34 | - | 6.0 | 5 | 3 | 3 | 1 | 4 | 3 | 81 | 33 | 48 | 59% | 9-15 | 4.18 | 1.41 |
| 1988-09-30 | Mike Witt | R | 28 | L 5-8 | @ MIN | 34 | 239 | L | 5.0 | 9 | 7 | 6 | 1 | 5 | 3 | 117 | 51 | 66 | 56% | 13-16 | 4.14 | 1.40 |
| 1988-10-01 | Dan Petry | R | 30 | L 5-10 | @ MIN | 22 | 267 | L | 4.1 | 8 | 7 | 7 | 1 | 5 | 3 | 84 | 41 | 43 | 51% | 3-9 | 4.37 | 1.41 |
| 1988-10-02 | Willie Fraser | R | 24 | L 2-3 | @ MIN | 32 | 56 | L | 8.0 | 7 | 3 | 3 | 1 | 1 | 4 | 106 | 36 | 70 | 66% | 12-13 | 5.40 | 1.45 |