| East | W | L | Pct | GB |
| NY Yankees | 114 | 48 | .704 | -- |
| Boston | 92 | 70 | .568 | 22.0 |
| Toronto | 88 | 74 | .543 | 26.0 |
| Baltimore | 79 | 83 | .488 | 35.0 |
| Tampa Bay | 63 | 99 | .389 | 51.0 |
| 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 |
| 1998-03-31 | Mike Mussina | R | 29 | W 1-4 | vs KCA | 1 | 195 | L | 8.0 | 6 | 3 | 3 | 0 | 0 | 11 | 107 | 28 | 79 | 74% | 0-1 | 3.38 | 0.75 |
| 1998-04-01 | Scott Erickson | R | 30 | L 10-1 | vs KCA | 1 | 237 | W | 9.0 | 4 | 1 | 1 | 1 | 1 | 5 | 0 | 0 | 0 | -- | 1-0 | 1.00 | 0.56 |
| 1998-04-02 | Jimmy Key | L | 37 | L 4-3 | vs KCA | 1 | 379 | - | 5.0 | 5 | 1 | 1 | 0 | 2 | 5 | 0 | 0 | 0 | -- | 0-0 | 1.80 | 1.40 |
| 1998-04-03 | Doug Drabek | R | 36 | L 10-2 | vs DET | 1 | 367 | W | 7.1 | 7 | 2 | 2 | 0 | 0 | 5 | 0 | 0 | 0 | -- | 1-0 | 2.57 | 1.00 |
| 1998-04-04 | Scott Kamieniecki | R | 34 | L 2-1 | vs DET | 1 | 125 | W | 6.0 | 4 | 0 | 0 | 0 | 3 | 2 | 89 | 37 | 52 | 58% | 1-0 | 0.00 | 1.17 |
| 1998-04-05 | Mike Mussina | R | 29 | L 6-3 | vs DET | 2 | 196 | W | 7.0 | 8 | 2 | 2 | 0 | 0 | 5 | 43 | 4 | 39 | 91% | 1-1 | 3.00 | 0.93 |
| 1998-04-07 | Scott Erickson | R | 30 | W 11-7 | @ KCA | 2 | 238 | W | 5.1 | 10 | 5 | 5 | 0 | 2 | 3 | 0 | 0 | 0 | -- | 2-0 | 3.86 | 1.21 |
| 1998-04-09 | Jimmy Key | L | 37 | W 2-1 | @ KCA | 2 | 380 | W | 7.0 | 6 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0 | -- | 1-0 | 1.50 | 1.25 |
| 1998-04-10 | Doug Drabek | R | 36 | L 1-7 | @ DET | 2 | 368 | L | 4.0 | 7 | 6 | 6 | 3 | 1 | 1 | 0 | 0 | 0 | -- | 1-1 | 6.55 | 1.36 |
| 1998-04-11 | Mike Mussina | R | 29 | W 2-0 | @ DET | 3 | 197 | W | 8.0 | 2 | 0 | 0 | 0 | 2 | 9 | 0 | 0 | 0 | -- | 2-1 | 1.96 | 0.78 |
| 1998-04-12 | Scott Erickson | R | 30 | W 6-3 | @ DET | 3 | 239 | W | 7.1 | 11 | 3 | 3 | 1 | 2 | 3 | 0 | 0 | 0 | -- | 3-0 | 3.68 | 1.36 |
| 1998-04-14 | Jimmy Key | L | 37 | L 4-3 | vs CHA | 3 | 381 | W | 7.0 | 3 | 1 | 1 | 1 | 0 | 7 | 69 | 19 | 50 | 72% | 2-0 | 1.42 | 0.95 |
| 1998-04-15 | Doug Drabek | R | 36 | W 6-7 | vs CHA | 3 | 369 | L | 4.0 | 6 | 6 | 5 | 2 | 1 | 1 | 67 | 25 | 42 | 63% | 1-2 | 7.80 | 1.47 |
| 1998-04-16 | Mike Mussina | R | 29 | W 2-8 | vs CHA | 4 | 198 | L | 5.0 | 8 | 5 | 5 | 3 | 1 | 5 | 89 | 30 | 59 | 66% | 2-2 | 3.21 | 0.96 |
| 1998-04-17 | Scott Erickson | R | 30 | L 4-6 | @ TEX | 4 | 240 | L | 2.2 | 11 | 6 | 6 | 0 | 0 | 0 | 66 | 26 | 40 | 61% | 3-1 | 5.63 | 1.71 |
| 1998-04-18 | Scott Kamieniecki | R | 34 | W 10-8 | @ TEX | 2 | 126 | W | 5.0 | 5 | 4 | 4 | 1 | 4 | 4 | 97 | 50 | 47 | 48% | 2-0 | 3.00 | 1.47 |
| 1998-04-19 | Jimmy Key | L | 37 | L 7-11 | @ TEX | 4 | 382 | L | 3.2 | 10 | 8 | 8 | 0 | 3 | 3 | 96 | 42 | 54 | 56% | 2-1 | 4.30 | 1.35 |
| 1998-04-20 | Doug Drabek | R | 36 | L 3-4 | @ ANA | 4 | 370 | L | 5.0 | 5 | 4 | 4 | 1 | 5 | 3 | 96 | 38 | 58 | 60% | 1-3 | 7.65 | 1.60 |
| 1998-04-21 | Doug Johns | L | 30 | W 8-3 | @ ANA | 1 | 33 | - | 4.0 | 7 | 3 | 3 | 1 | 2 | 2 | 0 | 0 | 0 | -- | 0-0 | 6.75 | 2.25 |
| 1998-04-22 | Scott Erickson | R | 30 | L 6-7 | @ ANA | 5 | 241 | - | 6.0 | 8 | 4 | 3 | 1 | 2 | 7 | 102 | 33 | 69 | 68% | 3-1 | 5.40 | 1.70 |
| 1998-04-24 | Scott Kamieniecki | R | 34 | W 1-10 | vs OAK | 3 | 127 | L | 0.1 | 4 | 6 | 6 | 1 | 2 | 0 | 25 | 13 | 12 | 48% | 2-1 | 6.60 | 1.87 |
| 1998-04-25 | Jimmy Key | L | 37 | L 8-2 | vs OAK | 5 | 383 | W | 7.0 | 6 | 0 | 0 | 0 | 1 | 5 | 104 | 36 | 68 | 65% | 3-1 | 3.30 | 1.27 |
| 1998-04-26 | Doug Drabek | R | 36 | W 4-12 | vs OAK | 5 | 371 | L | 2.1 | 7 | 5 | 5 | 0 | 0 | 1 | 54 | 18 | 36 | 67% | 1-4 | 8.61 | 1.70 |
| 1998-04-27 | Scott Erickson | R | 30 | W 1-3 | vs ANA | 6 | 242 | L | 9.0 | 9 | 3 | 3 | 0 | 3 | 6 | 130 | 49 | 81 | 62% | 3-2 | 4.85 | 1.62 |
| 1998-04-28 | Nerio Rodriguez | R | 25 | W 5-6 | vs ANA | 1 | 4 | L | 4.1 | 5 | 4 | 4 | 0 | 2 | 1 | 83 | 36 | 47 | 57% | 0-1 | 9.00 | 1.75 |
| 1998-04-29 | Sidney Ponson | R | 21 | L 7-16 | @ CHA | 1 | 1 | L | 4.0 | 6 | 6 | 6 | 3 | 3 | 5 | 89 | 39 | 50 | 56% | 0-1 | 5.54 | 1.46 |
| 1998-04-30 | Jimmy Key | L | 37 | W 4-1 | @ CHA | 6 | 384 | W | 7.0 | 4 | 1 | 1 | 0 | 1 | 5 | 98 | 39 | 59 | 60% | 4-1 | 2.92 | 1.16 |
| 1998-05-01 | Doug Drabek | R | 36 | L 6-3 | vs MIN | 6 | 372 | W | 6.0 | 7 | 3 | 3 | 0 | 1 | 1 | 90 | 35 | 55 | 61% | 2-4 | 7.76 | 1.62 |
| 1998-05-02 | Scott Erickson | R | 30 | W 7-8 | vs MIN | 7 | 243 | - | 6.0 | 10 | 7 | 7 | 0 | 1 | 7 | 98 | 27 | 71 | 72% | 3-2 | 5.60 | 1.64 |
| 1998-05-03 | Mike Mussina | R | 29 | L 2-0 | vs MIN | 5 | 199 | W | 7.2 | 2 | 0 | 0 | 0 | 4 | 4 | 91 | 37 | 54 | 59% | 3-2 | 2.50 | 0.92 |
| 1998-05-05 | Jimmy Key | L | 37 | L 5-6 | @ CLE | 7 | 385 | - | 6.1 | 5 | 3 | 3 | 0 | 1 | 1 | 99 | 42 | 57 | 58% | 4-1 | 3.14 | 1.14 |
| 1998-05-06 | Scott Erickson | R | 30 | L 5-14 | @ CLE | 8 | 244 | L | 3.1 | 8 | 7 | 7 | 3 | 3 | 1 | 70 | 34 | 36 | 51% | 3-3 | 6.43 | 1.73 |
| 1998-05-08 | Doug Drabek | R | 36 | W 8-2 | @ TBA | 7 | 373 | - | 5.0 | 4 | 2 | 2 | 1 | 1 | 3 | 81 | 32 | 49 | 60% | 2-4 | 7.15 | 1.53 |
| 1998-05-09 | Mike Mussina | R | 29 | W 7-0 | @ TBA | 6 | 200 | W | 9.0 | 5 | 0 | 0 | 0 | 0 | 10 | 126 | 35 | 91 | 72% | 4-2 | 2.00 | 0.84 |
| 1998-05-10 | Jimmy Key | L | 37 | L 3-4 | @ TBA | 8 | 386 | - | 6.0 | 4 | 3 | 1 | 2 | 1 | 6 | 94 | 32 | 62 | 66% | 4-1 | 2.94 | 1.10 |
| 1998-05-11 | Scott Erickson | R | 30 | W 4-0 | @ MIN | 9 | 245 | W | 9.0 | 5 | 0 | 0 | 0 | 0 | 5 | 103 | 23 | 80 | 78% | 4-3 | 5.43 | 1.55 |
| 1998-05-12 | Scott Kamieniecki | R | 34 | L 4-7 | @ MIN | 4 | 128 | - | 5.1 | 6 | 3 | 3 | 0 | 2 | 1 | 77 | 28 | 49 | 64% | 2-1 | 6.00 | 1.71 |
| 1998-05-13 | Doug Drabek | R | 36 | L 8-1 | vs CLE | 8 | 374 | W | 7.0 | 5 | 1 | 1 | 1 | 1 | 1 | 101 | 41 | 60 | 59% | 3-4 | 6.15 | 1.41 |
| 1998-05-14 | Mike Mussina | R | 29 | W 4-5 | vs CLE | 7 | 201 | - | 5.1 | 7 | 4 | 4 | 1 | 2 | 4 | 81 | 24 | 57 | 70% | 4-2 | 2.52 | 0.94 |
| 1998-05-15 | Jimmy Key | L | 37 | W 1-4 | vs TBA | 9 | 387 | L | 7.1 | 8 | 3 | 3 | 0 | 0 | 2 | 89 | 28 | 61 | 69% | 4-2 | 3.05 | 1.11 |
| 1998-05-16 | Scott Erickson | R | 30 | W 2-5 | vs TBA | 10 | 246 | L | 7.0 | 11 | 5 | 4 | 1 | 3 | 6 | 111 | 42 | 69 | 62% | 4-4 | 5.40 | 1.60 |
| 1998-05-17 | Scott Kamieniecki | R | 34 | W 3-7 | vs TBA | 5 | 129 | - | 7.0 | 6 | 2 | 2 | 1 | 1 | 4 | 85 | 35 | 50 | 59% | 2-1 | 5.14 | 1.54 |
| 1998-05-18 | Doug Drabek | R | 36 | W 3-6 | vs TBA | 9 | 375 | L | 4.0 | 6 | 5 | 5 | 0 | 1 | 1 | 78 | 30 | 48 | 62% | 3-5 | 6.60 | 1.44 |
| 1998-05-19 | Doug Johns | L | 30 | L 5-9 | @ NYA | 2 | 34 | - | 5.0 | 8 | 1 | 1 | 0 | 2 | 1 | 69 | 32 | 37 | 54% | 0-1 | 4.76 | 1.76 |
| 1998-05-20 | Jimmy Key | L | 37 | L 6-9 | @ NYA | 10 | 388 | L | 5.2 | 12 | 9 | 9 | 1 | 2 | 6 | 100 | 39 | 61 | 61% | 4-3 | 4.06 | 1.23 |
| 1998-05-21 | Scott Erickson | R | 30 | L 1-3 | @ NYA | 11 | 247 | L | 7.2 | 5 | 3 | 2 | 0 | 2 | 9 | 120 | 41 | 79 | 66% | 4-5 | 5.13 | 1.54 |
| 1998-05-22 | Scott Kamieniecki | R | 34 | L 5-9 | @ OAK | 6 | 130 | L | 3.0 | 6 | 7 | 7 | 0 | 3 | 2 | 0 | 0 | 0 | -- | 2-2 | 6.68 | 1.68 |
| 1998-05-23 | Doug Drabek | R | 36 | W 9-1 | @ OAK | 10 | 376 | W | 9.0 | 4 | 1 | 1 | 0 | 0 | 9 | 0 | 0 | 0 | -- | 4-5 | 5.67 | 1.28 |
| 1998-05-24 | Doug Johns | L | 30 | W 2-1 | @ OAK | 3 | 35 | - | 7.0 | 8 | 1 | 1 | 0 | 0 | 2 | 89 | 29 | 60 | 67% | 0-1 | 3.75 | 1.58 |
| 1998-05-25 | Nerio Rodriguez | R | 25 | L 4-12 | @ SEA | 2 | 5 | L | 1.1 | 5 | 5 | 5 | 0 | 2 | 0 | 50 | 21 | 29 | 58% | 0-2 | 15.00 | 2.83 |
| 1998-05-26 | Scott Erickson | R | 30 | W 8-3 | @ SEA | 12 | 248 | W | 8.0 | 5 | 1 | 1 | 0 | 3 | 8 | 111 | 52 | 59 | 53% | 5-5 | 4.73 | 1.49 |
| 1998-05-28 | Doug Drabek | R | 36 | L 5-2 | vs TEX | 11 | 377 | W | 7.0 | 7 | 2 | 2 | 1 | 0 | 5 | 92 | 34 | 58 | 63% | 5-5 | 5.31 | 1.25 |
| 1998-05-29 | Doug Johns | L | 30 | L 6-3 | vs TEX | 4 | 36 | W | 5.1 | 6 | 2 | 2 | 0 | 2 | 3 | 69 | 27 | 42 | 61% | 1-1 | 3.72 | 1.59 |
| 1998-05-30 | Bobby Munoz | R | 30 | W 8-10 | vs TEX | 1 | 31 | - | 3.0 | 4 | 5 | 5 | 2 | 2 | 2 | 53 | 24 | 29 | 55% | 0-0 | 11.00 | 1.78 |
| 1998-05-31 | Scott Erickson | R | 30 | W 5-9 | vs TEX | 13 | 249 | L | 7.0 | 10 | 7 | 7 | 1 | 3 | 8 | 108 | 41 | 67 | 62% | 5-6 | 5.07 | 1.52 |
| 1998-06-01 | Richie Lewis | R | 32 | L 10-9 | vs SEA | 1 | 4 | - | 4.1 | 6 | 7 | 7 | 2 | 5 | 3 | 83 | 39 | 44 | 53% | 0-0 | 15.75 | 2.75 |
| 1998-06-02 | Doug Drabek | R | 36 | L 9-8 | vs SEA | 12 | 378 | - | 5.1 | 9 | 7 | 7 | 2 | 0 | 3 | 85 | 30 | 55 | 65% | 5-5 | 5.86 | 1.29 |
| 1998-06-03 | Doug Johns | L | 30 | W 3-0 | @ BOS | 5 | 37 | W | 7.1 | 4 | 0 | 0 | 0 | 1 | 4 | 97 | 40 | 57 | 59% | 2-1 | 3.00 | 1.42 |
| 1998-06-04 | Sidney Ponson | R | 22 | L 1-9 | @ BOS | 2 | 2 | L | 5.2 | 9 | 5 | 4 | 1 | 2 | 3 | 100 | 34 | 66 | 66% | 0-3 | 6.75 | 1.66 |
| 1998-06-05 | Scott Erickson | R | 30 | L 3-2 | vs ATL | 14 | 250 | W | 9.0 | 7 | 2 | 2 | 2 | 2 | 4 | 102 | 37 | 65 | 64% | 6-6 | 4.78 | 1.47 |
| 1998-06-06 | Mike Mussina | R | 29 | W 5-10 | vs ATL | 8 | 202 | L | 4.2 | 8 | 8 | 8 | 1 | 1 | 10 | 95 | 32 | 63 | 66% | 4-3 | 3.60 | 1.02 |
| 1998-06-07 | Doug Drabek | R | 36 | W 0-9 | vs ATL | 13 | 379 | L | 3.0 | 9 | 5 | 5 | 2 | 1 | 3 | 68 | 21 | 47 | 69% | 5-6 | 6.26 | 1.38 |
| 1998-06-08 | Doug Johns | L | 30 | W 14-8 | @ PHI | 6 | 38 | - | 4.0 | 10 | 7 | 7 | 1 | 4 | 1 | 85 | 39 | 46 | 54% | 2-1 | 4.28 | 1.63 |
| 1998-06-09 | Sidney Ponson | R | 22 | L 0-2 | @ PHI | 3 | 3 | L | 6.0 | 6 | 2 | 2 | 1 | 3 | 5 | 102 | 39 | 63 | 62% | 0-4 | 6.16 | 1.63 |
| 1998-06-10 | Scott Erickson | R | 30 | W 5-2 | @ PHI | 15 | 251 | - | 7.1 | 8 | 2 | 2 | 0 | 2 | 9 | 115 | 48 | 67 | 58% | 6-6 | 4.59 | 1.45 |
| 1998-06-12 | Mike Mussina | R | 30 | W 9-5 | @ TOR | 9 | 203 | W | 5.1 | 7 | 2 | 2 | 0 | 1 | 2 | 100 | 34 | 66 | 66% | 5-3 | 3.60 | 1.07 |
| 1998-06-13 | Doug Drabek | R | 36 | L 8-9 | @ TOR | 14 | 380 | L | 2.0 | 5 | 5 | 5 | 1 | 1 | 1 | 44 | 18 | 26 | 59% | 5-7 | 6.72 | 1.42 |
| 1998-06-14 | Pete Smith | R | 32 | L 4-7 | @ TOR | 9 | 160 | L | 4.2 | 10 | 6 | 6 | 2 | 3 | 3 | 92 | 34 | 58 | 63% | 3-3 | 5.44 | 1.58 |
| 1998-06-15 | Scott Erickson | R | 30 | L 7-4 | vs NYA | 16 | 252 | W | 7.0 | 7 | 4 | 4 | 2 | 1 | 6 | 114 | 41 | 73 | 64% | 7-6 | 4.62 | 1.43 |
| 1998-06-16 | Sidney Ponson | R | 22 | L 2-0 | vs NYA | 4 | 4 | W | 6.2 | 2 | 0 | 0 | 0 | 1 | 4 | 96 | 32 | 64 | 67% | 1-4 | 5.32 | 1.48 |
| 1998-06-17 | Mike Mussina | R | 30 | W 3-5 | vs NYA | 10 | 204 | L | 6.0 | 8 | 5 | 5 | 2 | 3 | 2 | 86 | 31 | 55 | 64% | 5-4 | 3.95 | 1.14 |
| 1998-06-18 | Doug Johns | L | 30 | W 6-13 | vs TOR | 7 | 39 | L | 4.2 | 8 | 5 | 4 | 0 | 2 | 1 | 72 | 29 | 43 | 60% | 2-2 | 4.88 | 1.67 |
| 1998-06-19 | Pete Smith | R | 32 | L 7-4 | vs TOR | 10 | 161 | - | 5.0 | 6 | 4 | 4 | 2 | 1 | 4 | 80 | 30 | 50 | 63% | 3-3 | 5.60 | 1.57 |
| 1998-06-20 | Scott Erickson | R | 30 | L 11-3 | vs TOR | 17 | 253 | W | 9.0 | 12 | 3 | 3 | 1 | 2 | 8 | 148 | 56 | 92 | 62% | 8-6 | 4.50 | 1.44 |
| 1998-06-21 | Sidney Ponson | R | 22 | W 3-7 | vs TOR | 5 | 5 | L | 5.0 | 9 | 6 | 5 | 3 | 1 | 4 | 84 | 25 | 59 | 70% | 1-5 | 5.69 | 1.53 |
| 1998-06-22 | Mike Mussina | R | 30 | L 7-2 | vs NYN | 11 | 205 | W | 9.0 | 2 | 2 | 2 | 2 | 0 | 7 | 109 | 34 | 75 | 69% | 6-4 | 3.72 | 1.03 |
| 1998-06-23 | Doug Johns | L | 31 | W 3-6 | vs NYN | 8 | 40 | - | 3.2 | 6 | 2 | 2 | 0 | 1 | 1 | 50 | 19 | 31 | 62% | 2-2 | 4.85 | 1.67 |
| 1998-06-24 | Pete Smith | R | 32 | L 3-6 | @ NYN | 11 | 162 | L | 4.1 | 6 | 5 | 5 | 1 | 1 | 4 | 78 | 31 | 47 | 60% | 3-4 | 6.00 | 1.58 |
| 1998-06-25 | Scott Erickson | R | 30 | L 2-3 | @ NYN | 18 | 254 | - | 6.2 | 7 | 2 | 2 | 0 | 2 | 3 | 122 | 46 | 76 | 62% | 8-6 | 4.43 | 1.44 |
| 1998-06-26 | Sidney Ponson | R | 22 | L 4-9 | @ MON | 6 | 6 | L | 4.2 | 9 | 9 | 9 | 1 | 5 | 3 | 98 | 38 | 60 | 61% | 1-6 | 6.67 | 1.65 |
| 1998-06-27 | Mike Mussina | R | 30 | L 1-3 | @ MON | 12 | 206 | L | 7.0 | 9 | 3 | 3 | 0 | 2 | 4 | 95 | 33 | 62 | 65% | 6-5 | 3.73 | 1.07 |
| 1998-06-28 | Doug Drabek | R | 36 | L 4-8 | @ MON | 15 | 381 | L | 2.1 | 7 | 5 | 5 | 1 | 2 | 2 | 53 | 21 | 32 | 60% | 5-8 | 7.15 | 1.51 |
| 1998-06-30 | Scott Erickson | R | 30 | W 5-7 | vs FLO | 19 | 255 | - | 5.2 | 8 | 5 | 3 | 0 | 1 | 3 | 102 | 33 | 69 | 68% | 8-6 | 4.43 | 1.45 |
| 1998-07-01 | Pete Smith | R | 32 | W 3-5 | vs FLO | 12 | 163 | L | 4.0 | 5 | 4 | 4 | 0 | 4 | 1 | 85 | 36 | 49 | 58% | 3-5 | 6.20 | 1.62 |
| 1998-07-02 | Sidney Ponson | R | 22 | L 5-3 | vs FLO | 7 | 7 | W | 6.0 | 7 | 2 | 2 | 0 | 0 | 4 | 71 | 16 | 55 | 77% | 2-6 | 6.30 | 1.60 |
| 1998-07-03 | Mike Mussina | R | 30 | L 2-3 | @ NYA | 13 | 207 | - | 7.1 | 7 | 2 | 2 | 1 | 1 | 9 | 117 | 40 | 77 | 66% | 6-5 | 3.64 | 1.08 |
| 1998-07-04 | Doug Drabek | R | 36 | L 3-4 | @ NYA | 16 | 382 | L | 5.0 | 8 | 4 | 4 | 0 | 3 | 2 | 90 | 41 | 49 | 54% | 5-9 | 7.15 | 1.55 |
| 1998-07-05 | Scott Erickson | R | 30 | L 0-1 | @ NYA | 20 | 256 | L | 8.0 | 7 | 1 | 1 | 0 | 4 | 7 | 139 | 52 | 87 | 63% | 8-7 | 4.24 | 1.44 |
| 1998-07-09 | Mike Mussina | R | 30 | L 3-2 | vs BOS | 14 | 208 | - | 7.0 | 5 | 2 | 2 | 2 | 3 | 5 | 106 | 37 | 69 | 65% | 6-5 | 3.56 | 1.08 |
| 1998-07-10 | Sidney Ponson | R | 22 | L 3-2 | vs BOS | 8 | 8 | - | 6.2 | 6 | 2 | 2 | 1 | 1 | 3 | 91 | 30 | 61 | 67% | 2-6 | 5.91 | 1.54 |
| 1998-07-11 | Scott Erickson | R | 30 | L 2-1 | vs BOS | 21 | 257 | W | 8.2 | 4 | 1 | 1 | 1 | 1 | 8 | 108 | 37 | 71 | 66% | 9-7 | 4.05 | 1.39 |
| 1998-07-12 | Doug Drabek | R | 36 | L 11-7 | vs BOS | 17 | 383 | - | 4.2 | 6 | 5 | 5 | 0 | 2 | 1 | 82 | 33 | 49 | 60% | 5-9 | 7.27 | 1.55 |
| 1998-07-13 | Nerio Rodriguez | R | 25 | L 5-0 | vs TOR | 3 | 6 | W | 6.0 | 1 | 0 | 0 | 0 | 1 | 5 | 68 | 24 | 44 | 65% | 1-2 | 7.50 | 1.58 |
| 1998-07-14 | Mike Mussina | R | 30 | L 11-5 | vs TOR | 15 | 209 | W | 9.0 | 7 | 5 | 5 | 0 | 1 | 6 | 110 | 34 | 76 | 69% | 7-5 | 3.69 | 1.07 |
| 1998-07-15 | Sidney Ponson | R | 22 | W 14-3 | @ TEX | 9 | 9 | W | 5.0 | 8 | 3 | 3 | 0 | 2 | 3 | 101 | 37 | 64 | 63% | 3-6 | 5.88 | 1.57 |
| 1998-07-16 | Scott Erickson | R | 30 | W 9-3 | @ TEX | 22 | 258 | W | 7.0 | 8 | 3 | 2 | 0 | 1 | 4 | 128 | 47 | 81 | 63% | 10-7 | 3.98 | 1.38 |
| 1998-07-17 | Doug Drabek | R | 36 | W 4-1 | @ ANA | 18 | 384 | W | 5.1 | 3 | 1 | 1 | 0 | 1 | 4 | 80 | 33 | 47 | 59% | 6-9 | 6.95 | 1.51 |
| 1998-07-18 | Nerio Rodriguez | R | 25 | L 3-8 | @ ANA | 4 | 7 | L | 3.2 | 6 | 4 | 4 | 0 | 2 | 1 | 59 | 25 | 34 | 58% | 1-3 | 7.88 | 1.69 |
| 1998-07-19 | Mike Mussina | R | 30 | W 7-4 | @ ANA | 16 | 210 | - | 6.2 | 7 | 4 | 2 | 0 | 0 | 5 | 80 | 29 | 51 | 64% | 7-5 | 3.62 | 1.06 |
| 1998-07-21 | Scott Erickson | R | 30 | L 7-1 | vs OAK | 23 | 259 | W | 9.0 | 6 | 1 | 1 | 0 | 1 | 7 | 121 | 44 | 77 | 64% | 11-7 | 3.82 | 1.35 |
| 1998-07-22 | Sidney Ponson | R | 22 | L 5-4 | vs OAK | 10 | 10 | - | 5.1 | 4 | 3 | 3 | 1 | 0 | 5 | 78 | 27 | 51 | 65% | 3-6 | 5.84 | 1.52 |
| 1998-07-23 | Doug Drabek | R | 36 | L 9-7 | vs OAK | 19 | 385 | - | 4.2 | 5 | 5 | 5 | 0 | 2 | 2 | 71 | 31 | 40 | 56% | 6-9 | 7.06 | 1.51 |
| 1998-07-24 | Mike Mussina | R | 30 | L 7-4 | vs SEA | 17 | 211 | W | 7.2 | 7 | 4 | 4 | 2 | 0 | 7 | 123 | 38 | 85 | 69% | 8-5 | 3.68 | 1.05 |
| 1998-07-25 | Scott Kamieniecki | R | 34 | W 2-4 | vs SEA | 7 | 131 | L | 5.1 | 9 | 4 | 4 | 0 | 1 | 1 | 79 | 31 | 48 | 61% | 2-3 | 6.75 | 1.72 |
| 1998-07-26 | Scott Erickson | R | 30 | W 4-10 | vs SEA | 24 | 260 | L | 5.0 | 8 | 7 | 2 | 0 | 3 | 2 | 89 | 37 | 52 | 58% | 11-8 | 3.81 | 1.38 |
| 1998-07-28 | Sidney Ponson | R | 22 | W 6-5 | @ DET | 11 | 11 | W | 6.0 | 7 | 5 | 5 | 1 | 1 | 2 | 87 | 36 | 51 | 59% | 4-6 | 5.96 | 1.51 |
| 1998-07-29 | Mike Mussina | R | 30 | W 14-2 | @ DET | 18 | 212 | W | 6.0 | 6 | 1 | 1 | 0 | 1 | 1 | 90 | 30 | 60 | 67% | 9-5 | 3.57 | 1.06 |
| 1998-07-30 | Jimmy Key | L | 37 | W 6-4 | @ DET | 11 | 389 | - | 3.0 | 5 | 3 | 3 | 0 | 4 | 1 | 80 | 35 | 45 | 56% | 4-3 | 4.29 | 1.31 |
| 1998-07-31 | Scott Erickson | R | 30 | L 6-9 | @ KCA | 25 | 261 | L | 3.0 | 8 | 5 | 4 | 3 | 0 | 1 | 64 | 23 | 41 | 64% | 11-9 | 3.95 | 1.40 |
| 1998-08-01 | Scott Kamieniecki | R | 34 | L 5-9 | @ KCA | 8 | 132 | L | 4.0 | 5 | 5 | 5 | 1 | 3 | 5 | 94 | 42 | 52 | 55% | 2-4 | 7.20 | 1.75 |
| 1998-08-02 | Sidney Ponson | R | 22 | W 9-2 | @ KCA | 12 | 12 | W | 7.0 | 8 | 2 | 2 | 0 | 4 | 6 | 129 | 55 | 74 | 57% | 5-6 | 5.70 | 1.52 |
| 1998-08-04 | Mike Mussina | R | 30 | L 4-0 | vs DET | 19 | 213 | W | 9.0 | 2 | 0 | 0 | 0 | 0 | 8 | 93 | 25 | 68 | 73% | 10-5 | 3.33 | 1.00 |
| 1998-08-05 | Juan Guzman | R | 32 | L 6-1 | vs DET | 23 | 196 | W | 7.0 | 5 | 1 | 1 | 0 | 1 | 2 | 96 | 36 | 60 | 63% | 7-12 | 4.26 | 1.34 |
| 1998-08-07 | Scott Erickson | R | 31 | W 16-9 | @ MIN | 26 | 262 | - | 4.0 | 8 | 7 | 6 | 0 | 4 | 4 | 99 | 49 | 50 | 51% | 11-9 | 4.17 | 1.44 |
| 1998-08-08 | Sidney Ponson | R | 22 | W 6-3 | @ MIN | 13 | 13 | W | 6.0 | 9 | 2 | 2 | 1 | 0 | 5 | 96 | 36 | 60 | 63% | 6-6 | 5.53 | 1.52 |
| 1998-08-09 | Mike Mussina | R | 30 | L 4-5 | @ MIN | 20 | 214 | L | 7.0 | 12 | 5 | 5 | 0 | 3 | 11 | 137 | 57 | 80 | 58% | 10-6 | 3.49 | 1.06 |
| 1998-08-10 | Juan Guzman | R | 32 | W 2-1 | @ TBA | 24 | 197 | W | 5.2 | 3 | 1 | 1 | 0 | 2 | 2 | 90 | 34 | 56 | 62% | 8-12 | 4.16 | 1.32 |
| 1998-08-11 | Scott Kamieniecki | R | 34 | L 1-2 | @ TBA | 9 | 133 | - | 6.0 | 6 | 1 | 1 | 1 | 2 | 0 | 94 | 39 | 55 | 59% | 2-4 | 6.46 | 1.70 |
| 1998-08-12 | Scott Erickson | R | 31 | W 7-0 | @ TBA | 27 | 263 | W | 9.0 | 5 | 0 | 0 | 0 | 1 | 5 | 124 | 46 | 78 | 63% | 12-9 | 3.97 | 1.40 |
| 1998-08-13 | Sidney Ponson | R | 22 | W 7-4 | @ CLE | 14 | 14 | - | 3.2 | 4 | 4 | 4 | 0 | 3 | 2 | 85 | 30 | 55 | 65% | 6-6 | 5.67 | 1.53 |
| 1998-08-14 | Mike Mussina | R | 30 | W 15-3 | @ CLE | 21 | 215 | W | 8.0 | 7 | 2 | 2 | 1 | 0 | 5 | 102 | 32 | 70 | 69% | 11-6 | 3.42 | 1.05 |
| 1998-08-15 | Juan Guzman | R | 32 | W 9-8 | @ CLE | 25 | 198 | - | 5.1 | 4 | 6 | 5 | 0 | 4 | 5 | 110 | 45 | 65 | 59% | 8-12 | 4.31 | 1.33 |
| 1998-08-16 | Scott Kamieniecki | R | 34 | L 3-5 | @ CLE | 10 | 134 | L | 6.0 | 4 | 4 | 4 | 2 | 3 | 2 | 86 | 40 | 46 | 53% | 2-5 | 6.40 | 1.63 |
| 1998-08-17 | Scott Erickson | R | 31 | L 3-2 | vs MIN | 28 | 264 | W | 7.0 | 7 | 2 | 2 | 0 | 1 | 10 | 105 | 37 | 68 | 65% | 13-9 | 3.92 | 1.39 |
| 1998-08-18 | Sidney Ponson | R | 22 | L 7-1 | vs MIN | 15 | 15 | W | 6.0 | 7 | 1 | 1 | 0 | 1 | 2 | 119 | 45 | 74 | 62% | 7-6 | 5.43 | 1.52 |
| 1998-08-19 | Mike Mussina | R | 30 | L 6-4 | vs TBA | 22 | 216 | W | 7.0 | 9 | 2 | 2 | 0 | 1 | 10 | 119 | 34 | 85 | 71% | 12-6 | 3.38 | 1.06 |
| 1998-08-20 | Juan Guzman | R | 32 | W 2-4 | vs TBA | 26 | 199 | - | 6.1 | 4 | 2 | 2 | 1 | 2 | 7 | 106 | 40 | 66 | 62% | 8-12 | 4.26 | 1.32 |
| 1998-08-21 | Scott Kamieniecki | R | 34 | W 3-6 | vs CLE | 11 | 135 | L | 2.2 | 7 | 4 | 4 | 0 | 1 | 3 | 87 | 34 | 53 | 61% | 2-6 | 6.71 | 1.69 |
| 1998-08-22 | Scott Erickson | R | 31 | L 6-3 | vs CLE | 29 | 265 | W | 9.0 | 7 | 3 | 3 | 1 | 4 | 5 | 124 | 49 | 75 | 60% | 14-9 | 3.88 | 1.38 |
| 1998-08-23 | Sidney Ponson | R | 22 | W 1-4 | vs CLE | 16 | 16 | L | 5.1 | 8 | 4 | 4 | 0 | 2 | 5 | 95 | 31 | 64 | 67% | 7-7 | 5.51 | 1.54 |
| 1998-08-25 | Mike Mussina | R | 30 | L 4-6 | @ CHA | 23 | 217 | L | 6.2 | 10 | 5 | 5 | 1 | 1 | 5 | 111 | 43 | 68 | 61% | 12-7 | 3.53 | 1.09 |
| 1998-08-26 | Juan Guzman | R | 32 | L 5-12 | @ CHA | 27 | 200 | L | 5.0 | 9 | 7 | 7 | 1 | 3 | 5 | 101 | 43 | 58 | 57% | 8-13 | 4.50 | 1.35 |
| 1998-08-27 | Scott Erickson | R | 31 | L 4-7 | @ CHA | 30 | 266 | L | 6.1 | 8 | 7 | 7 | 1 | 4 | 3 | 105 | 43 | 62 | 59% | 14-10 | 4.07 | 1.40 |
| 1998-08-28 | Sidney Ponson | R | 22 | W 5-6 | vs KCA | 17 | 17 | L | 6.2 | 8 | 4 | 4 | 1 | 1 | 2 | 99 | 27 | 72 | 73% | 7-8 | 5.49 | 1.53 |
| 1998-08-29 | Mike Mussina | R | 30 | W 1-2 | vs KCA | 24 | 218 | L | 6.0 | 6 | 2 | 2 | 0 | 2 | 1 | 85 | 29 | 56 | 66% | 12-8 | 3.51 | 1.10 |
| 1998-08-30 | Juan Guzman | R | 32 | W 2-3 | vs KCA | 28 | 201 | L | 7.0 | 6 | 3 | 3 | 0 | 3 | 8 | 109 | 42 | 67 | 61% | 8-14 | 4.48 | 1.35 |
| 1998-08-31 | Scott Erickson | R | 31 | W 1-4 | vs CHA | 31 | 267 | L | 7.0 | 8 | 4 | 4 | 2 | 2 | 2 | 96 | 38 | 58 | 60% | 14-11 | 4.10 | 1.40 |
| 1998-09-01 | Doug Drabek | R | 36 | W 5-9 | vs CHA | 20 | 386 | L | 5.1 | 4 | 5 | 4 | 2 | 2 | 1 | 84 | 33 | 51 | 61% | 6-10 | 7.08 | 1.50 |
| 1998-09-02 | Sidney Ponson | R | 22 | W 2-3 | vs CHA | 18 | 18 | - | 5.2 | 2 | 2 | 2 | 0 | 0 | 2 | 71 | 22 | 49 | 69% | 7-8 | 5.41 | 1.48 |
| 1998-09-04 | Juan Guzman | R | 32 | W 10-1 | @ SEA | 29 | 202 | W | 8.0 | 5 | 1 | 1 | 0 | 3 | 9 | 128 | 46 | 82 | 64% | 9-14 | 4.33 | 1.33 |
| 1998-09-05 | Scott Erickson | R | 31 | L 5-6 | @ SEA | 32 | 268 | - | 5.1 | 8 | 2 | 2 | 0 | 1 | 6 | 118 | 49 | 69 | 58% | 14-11 | 4.09 | 1.41 |
| 1998-09-06 | Mike Mussina | R | 30 | W 5-2 | @ SEA | 25 | 219 | W | 8.0 | 4 | 2 | 2 | 1 | 2 | 10 | 113 | 45 | 68 | 60% | 13-8 | 3.46 | 1.08 |
| 1998-09-07 | Doug Drabek | R | 36 | L 1-11 | @ SEA | 21 | 387 | L | 3.0 | 7 | 4 | 4 | 2 | 1 | 2 | 55 | 20 | 35 | 64% | 6-11 | 7.22 | 1.54 |
| 1998-09-08 | Doug Johns | L | 31 | W 5-2 | @ OAK | 9 | 41 | - | 4.2 | 6 | 2 | 2 | 2 | 4 | 1 | 0 | 0 | 0 | -- | 3-2 | 4.28 | 1.51 |
| 1998-09-09 | Juan Guzman | R | 32 | W 6-2 | @ OAK | 30 | 203 | W | 5.0 | 6 | 2 | 2 | 0 | 4 | 2 | 0 | 0 | 0 | -- | 10-14 | 4.31 | 1.35 |
| 1998-09-11 | Scott Erickson | R | 31 | L 8-3 | vs ANA | 33 | 269 | W | 9.0 | 9 | 3 | 3 | 0 | 2 | 4 | 118 | 41 | 77 | 65% | 15-11 | 4.05 | 1.40 |
| 1998-09-12 | Mike Mussina | R | 30 | L 3-2 | vs ANA | 26 | 220 | - | 8.0 | 8 | 2 | 0 | 0 | 0 | 2 | 115 | 39 | 76 | 66% | 13-8 | 3.31 | 1.08 |
| 1998-09-13 | Rocky Coppinger | R | 24 | L 12-7 | vs ANA | 1 | 27 | - | 5.0 | 5 | 4 | 4 | 2 | 3 | 4 | 90 | 34 | 56 | 62% | 0-0 | 4.50 | 1.38 |
| 1998-09-14 | Juan Guzman | R | 32 | L 1-0 | vs TEX | 31 | 204 | - | 7.0 | 5 | 0 | 0 | 0 | 1 | 5 | 109 | 41 | 68 | 62% | 10-14 | 4.16 | 1.33 |
| 1998-09-15 | Chris Fussell | R | 22 | W 5-6 | vs TEX | 1 | 1 | - | 5.0 | 4 | 3 | 3 | 0 | 4 | 5 | 90 | 37 | 53 | 59% | 0-0 | 5.40 | 1.60 |
| 1998-09-16 | Scott Erickson | R | 31 | W 3-4 | vs BOS | 34 | 270 | L | 7.0 | 12 | 4 | 4 | 0 | 0 | 3 | 113 | 40 | 73 | 65% | 15-12 | 4.08 | 1.41 |
| 1998-09-17 | Mike Mussina | R | 30 | W 2-3 | vs BOS | 27 | 221 | - | 9.0 | 6 | 2 | 2 | 1 | 4 | 10 | 134 | 50 | 84 | 63% | 13-8 | 3.25 | 1.08 |
| 1998-09-18 | Juan Guzman | R | 32 | W 5-15 | vs NYA | 32 | 205 | L | 5.0 | 6 | 5 | 3 | 0 | 7 | 3 | 106 | 49 | 57 | 54% | 10-15 | 4.19 | 1.36 |
| 1998-09-19 | Sidney Ponson | R | 22 | L 5-3 | vs NYA | 19 | 19 | W | 7.1 | 6 | 0 | 0 | 0 | 2 | 5 | 88 | 30 | 58 | 66% | 8-8 | 5.08 | 1.45 |
| 1998-09-20 | Doug Johns | L | 31 | W 4-5 | vs NYA | 10 | 42 | L | 4.1 | 10 | 2 | 2 | 0 | 2 | 2 | 77 | 19 | 58 | 75% | 3-3 | 4.29 | 1.58 |
| 1998-09-21 | Scott Erickson | R | 31 | L 1-3 | @ TOR | 35 | 271 | L | 8.0 | 9 | 3 | 3 | 2 | 3 | 12 | 135 | 50 | 85 | 63% | 15-13 | 4.06 | 1.41 |
| 1998-09-22 | Mike Mussina | R | 30 | L 3-7 | @ TOR | 28 | 222 | L | 7.0 | 8 | 7 | 7 | 3 | 4 | 3 | 124 | 48 | 76 | 61% | 13-9 | 3.45 | 1.10 |
| 1998-09-23 | Juan Guzman | R | 32 | L 3-6 | @ TOR | 33 | 206 | L | 4.2 | 7 | 6 | 6 | 2 | 3 | 7 | 92 | 39 | 53 | 58% | 10-16 | 4.35 | 1.38 |
| 1998-09-24 | Sidney Ponson | R | 22 | L 6-9 | @ BOS | 20 | 20 | L | 4.1 | 9 | 5 | 5 | 1 | 0 | 1 | 75 | 26 | 49 | 65% | 8-9 | 5.27 | 1.47 |
| 1998-09-25 | Chris Fussell | R | 22 | L 3-8 | @ BOS | 2 | 2 | L | 1.2 | 3 | 4 | 4 | 1 | 5 | 2 | 44 | 25 | 19 | 43% | 0-1 | 8.10 | 2.00 |
| 1998-09-26 | Scott Erickson | R | 31 | W 5-2 | @ BOS | 36 | 272 | W | 7.0 | 6 | 2 | 2 | 0 | 2 | 2 | 96 | 33 | 63 | 66% | 16-13 | 4.02 | 1.41 |
| 1998-09-27 | Mike Mussina | R | 30 | L 4-6 | @ BOS | 29 | 223 | L | 5.0 | 6 | 4 | 3 | 1 | 2 | 4 | 85 | 31 | 54 | 64% | 13-10 | 3.50 | 1.12 |