| West | W | L | Pct | GB |
| Texas | 88 | 74 | .543 | -- |
| Anaheim | 85 | 77 | .525 | 3.0 |
| Seattle | 76 | 85 | .472 | 11.5 |
| Oakland | 74 | 88 | .457 | 14.0 |
| 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 | John Burkett | R | 33 | W 2-9 | vs CHA | 1 | 252 | L | 4.2 | 6 | 7 | 7 | 1 | 2 | 2 | 0 | 0 | 0 | -- | 0-1 | 12.60 | 1.60 |
| 1998-04-02 | Aaron Sele | R | 28 | L 20-4 | vs CHA | 1 | 109 | W | 5.0 | 6 | 4 | 2 | 1 | 2 | 3 | 0 | 0 | 0 | -- | 1-0 | 3.60 | 1.60 |
| 1998-04-03 | Rick Helling | R | 27 | W 5-0 | @ TOR | 1 | 35 | W | 9.0 | 4 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | -- | 1-0 | 0.00 | 0.67 |
| 1998-04-04 | Darren Oliver | L | 27 | L 2-9 | @ TOR | 1 | 70 | L | 6.0 | 7 | 4 | 4 | 2 | 2 | 2 | 105 | 36 | 69 | 66% | 0-1 | 6.00 | 1.50 |
| 1998-04-05 | John Burkett | R | 33 | W 6-5 | @ TOR | 2 | 253 | W | 7.2 | 6 | 5 | 5 | 3 | 3 | 6 | 115 | 44 | 71 | 62% | 1-1 | 9.00 | 1.42 |
| 1998-04-06 | Bobby Witt | R | 34 | L 4-5 | @ CHA | 1 | 339 | - | 5.1 | 8 | 4 | 4 | 1 | 2 | 0 | 0 | 0 | 0 | -- | 0-0 | 6.00 | 2.17 |
| 1998-04-09 | Aaron Sele | R | 28 | W 11-0 | @ CHA | 2 | 110 | W | 9.0 | 3 | 0 | 0 | 0 | 4 | 5 | 124 | 49 | 75 | 60% | 2-0 | 1.29 | 1.07 |
| 1998-04-10 | Rick Helling | R | 27 | L 4-3 | vs TOR | 2 | 36 | W | 8.0 | 6 | 2 | 2 | 2 | 1 | 4 | 103 | 39 | 64 | 62% | 2-0 | 1.06 | 0.76 |
| 1998-04-11 | Darren Oliver | L | 28 | W 8-9 | vs TOR | 2 | 71 | L | 2.2 | 6 | 6 | 5 | 1 | 2 | 0 | 56 | 28 | 28 | 50% | 0-2 | 9.00 | 1.89 |
| 1998-04-12 | John Burkett | R | 33 | L 3-1 | vs TOR | 3 | 254 | - | 8.0 | 7 | 1 | 1 | 0 | 2 | 4 | 0 | 0 | 0 | -- | 1-1 | 5.85 | 1.30 |
| 1998-04-13 | Bobby Witt | R | 34 | L 10-1 | vs DET | 2 | 340 | W | 6.2 | 6 | 1 | 1 | 0 | 4 | 6 | 104 | 48 | 56 | 54% | 1-0 | 3.46 | 1.77 |
| 1998-04-14 | Aaron Sele | R | 28 | L 11-2 | vs DET | 3 | 111 | W | 8.0 | 7 | 2 | 2 | 0 | 0 | 3 | 116 | 45 | 71 | 61% | 3-0 | 1.64 | 1.00 |
| 1998-04-15 | Rick Helling | R | 27 | L 7-3 | vs DET | 3 | 37 | W | 6.0 | 6 | 3 | 3 | 0 | 2 | 2 | 83 | 33 | 50 | 60% | 3-0 | 1.96 | 0.91 |
| 1998-04-17 | Darren Oliver | L | 28 | L 6-4 | vs BAL | 3 | 72 | - | 4.0 | 8 | 4 | 3 | 0 | 2 | 2 | 87 | 35 | 52 | 60% | 0-2 | 8.31 | 2.08 |
| 1998-04-18 | John Burkett | R | 33 | W 8-10 | vs BAL | 4 | 255 | L | 4.0 | 11 | 6 | 6 | 0 | 2 | 4 | 76 | 26 | 50 | 66% | 1-2 | 7.13 | 1.63 |
| 1998-04-19 | Bobby Witt | R | 34 | L 11-7 | vs BAL | 3 | 341 | W | 8.0 | 8 | 3 | 3 | 0 | 3 | 1 | 121 | 51 | 70 | 58% | 2-0 | 3.43 | 1.62 |
| 1998-04-21 | Aaron Sele | R | 28 | L 4-0 | vs TBA | 4 | 112 | W | 9.0 | 4 | 0 | 0 | 0 | 1 | 10 | 106 | 33 | 73 | 69% | 4-0 | 1.16 | 0.87 |
| 1998-04-22 | Rick Helling | R | 27 | L 7-2 | vs TBA | 4 | 38 | W | 5.1 | 4 | 1 | 1 | 0 | 2 | 5 | 91 | 34 | 57 | 63% | 4-0 | 1.93 | 0.96 |
| 1998-04-23 | Darren Oliver | L | 28 | W 5-12 | vs TBA | 4 | 73 | L | 3.0 | 6 | 5 | 4 | 0 | 4 | 1 | 68 | 32 | 36 | 53% | 0-3 | 9.00 | 2.31 |
| 1998-04-24 | John Burkett | R | 33 | L 4-11 | @ KCA | 5 | 256 | L | 4.2 | 11 | 11 | 11 | 1 | 2 | 6 | 90 | 34 | 56 | 62% | 1-3 | 9.31 | 1.79 |
| 1998-04-25 | Bobby Witt | R | 34 | W 11-8 | @ KCA | 4 | 342 | W | 5.0 | 9 | 7 | 7 | 2 | 2 | 0 | 42 | 17 | 25 | 60% | 3-0 | 5.19 | 1.73 |
| 1998-04-26 | Aaron Sele | R | 28 | W 11-4 | @ KCA | 5 | 113 | W | 5.0 | 8 | 4 | 4 | 1 | 4 | 6 | 109 | 46 | 63 | 58% | 5-0 | 2.00 | 1.08 |
| 1998-04-27 | Rick Helling | R | 27 | W 9-4 | @ MIN | 5 | 39 | W | 8.2 | 8 | 4 | 4 | 1 | 3 | 10 | 137 | 48 | 89 | 65% | 5-0 | 2.43 | 1.03 |
| 1998-04-28 | Darren Oliver | L | 28 | W 7-2 | @ MIN | 5 | 74 | W | 7.0 | 5 | 2 | 2 | 1 | 1 | 2 | 105 | 42 | 63 | 60% | 1-3 | 7.04 | 1.87 |
| 1998-04-29 | John Burkett | R | 33 | W 4-1 | @ DET | 6 | 257 | W | 7.0 | 4 | 1 | 1 | 1 | 0 | 4 | 89 | 31 | 58 | 65% | 2-3 | 7.75 | 1.56 |
| 1998-04-30 | Bobby Witt | R | 34 | L 2-7 | @ DET | 5 | 343 | L | 4.0 | 11 | 7 | 7 | 1 | 2 | 2 | 84 | 34 | 50 | 60% | 3-1 | 6.60 | 1.93 |
| 1998-05-01 | Aaron Sele | R | 28 | L 3-5 | @ BOS | 6 | 114 | L | 7.0 | 6 | 5 | 5 | 2 | 1 | 8 | 97 | 38 | 59 | 61% | 5-1 | 2.72 | 1.07 |
| 1998-05-02 | Rick Helling | R | 27 | W 7-6 | @ BOS | 6 | 40 | W | 6.0 | 8 | 4 | 4 | 1 | 2 | 6 | 88 | 33 | 55 | 63% | 6-0 | 2.93 | 1.12 |
| 1998-05-03 | Darren Oliver | L | 28 | L 1-2 | @ BOS | 6 | 75 | L | 8.0 | 9 | 2 | 2 | 1 | 1 | 6 | 0 | 0 | 0 | -- | 1-4 | 5.81 | 1.71 |
| 1998-05-05 | John Burkett | R | 33 | W 2-7 | vs NYA | 7 | 258 | L | 4.1 | 7 | 6 | 5 | 1 | 2 | 4 | 70 | 25 | 45 | 64% | 2-4 | 8.10 | 1.63 |
| 1998-05-06 | Bobby Witt | R | 34 | W 13-15 | vs NYA | 6 | 344 | - | 1.1 | 4 | 7 | 7 | 2 | 4 | 3 | 0 | 0 | 0 | -- | 3-1 | 8.42 | 2.13 |
| 1998-05-07 | Aaron Sele | R | 28 | W 2-7 | vs CLE | 7 | 115 | L | 8.0 | 10 | 5 | 5 | 0 | 3 | 3 | 105 | 37 | 68 | 65% | 5-2 | 3.18 | 1.16 |
| 1998-05-08 | Rick Helling | R | 27 | L 6-3 | vs CLE | 7 | 41 | - | 6.2 | 7 | 3 | 3 | 2 | 3 | 8 | 132 | 54 | 78 | 59% | 6-0 | 3.06 | 1.16 |
| 1998-05-09 | Darren Oliver | L | 28 | L 7-3 | vs CLE | 7 | 76 | W | 9.0 | 7 | 3 | 3 | 1 | 1 | 4 | 120 | 40 | 80 | 67% | 2-4 | 5.18 | 1.53 |
| 1998-05-10 | John Burkett | R | 33 | L 5-3 | vs CLE | 8 | 259 | W | 8.0 | 4 | 3 | 3 | 0 | 1 | 5 | 112 | 39 | 73 | 65% | 3-4 | 7.31 | 1.46 |
| 1998-05-11 | Bobby Witt | R | 34 | L 8-2 | vs BOS | 7 | 345 | W | 7.0 | 5 | 2 | 2 | 0 | 1 | 2 | 82 | 26 | 56 | 68% | 4-1 | 7.34 | 1.89 |
| 1998-05-12 | Aaron Sele | R | 28 | L 6-3 | vs BOS | 8 | 116 | W | 5.2 | 5 | 3 | 1 | 0 | 4 | 3 | 86 | 40 | 46 | 53% | 6-2 | 3.00 | 1.19 |
| 1998-05-13 | Rick Helling | R | 27 | L 6-8 | @ NYA | 8 | 42 | L | 5.0 | 9 | 7 | 7 | 2 | 4 | 1 | 87 | 39 | 48 | 55% | 6-1 | 3.93 | 1.29 |
| 1998-05-14 | Darren Oliver | L | 28 | W 7-5 | @ NYA | 8 | 77 | - | 5.1 | 8 | 5 | 5 | 1 | 3 | 1 | 92 | 45 | 47 | 51% | 2-4 | 5.60 | 1.60 |
| 1998-05-15 | John Burkett | R | 33 | L 2-3 | @ CLE | 9 | 260 | - | 7.0 | 6 | 2 | 2 | 1 | 3 | 5 | 107 | 41 | 66 | 62% | 3-4 | 6.71 | 1.44 |
| 1998-05-16 | Bobby Witt | R | 34 | L 3-10 | @ CLE | 8 | 346 | L | 7.0 | 10 | 9 | 8 | 3 | 2 | 7 | 126 | 47 | 79 | 63% | 4-2 | 7.80 | 1.87 |
| 1998-05-17 | Aaron Sele | R | 28 | W 1-0 | @ CLE | 9 | 117 | W | 8.0 | 5 | 0 | 0 | 0 | 2 | 9 | 118 | 46 | 72 | 61% | 7-2 | 2.63 | 1.15 |
| 1998-05-19 | Rick Helling | R | 27 | L 10-4 | vs SEA | 9 | 43 | W | 5.2 | 8 | 4 | 4 | 0 | 1 | 2 | 97 | 33 | 64 | 66% | 7-1 | 4.20 | 1.33 |
| 1998-05-20 | Darren Oliver | L | 28 | L 8-7 | vs SEA | 9 | 78 | - | 4.0 | 5 | 5 | 5 | 1 | 5 | 1 | 75 | 39 | 36 | 48% | 2-4 | 6.06 | 1.67 |
| 1998-05-21 | John Burkett | R | 33 | L 9-8 | vs SEA | 10 | 261 | - | 4.0 | 8 | 7 | 7 | 1 | 3 | 2 | 84 | 31 | 53 | 63% | 3-4 | 7.32 | 1.53 |
| 1998-05-22 | Bobby Witt | R | 34 | L 13-10 | vs KCA | 9 | 347 | - | 3.2 | 5 | 3 | 3 | 1 | 2 | 3 | 65 | 26 | 39 | 60% | 4-2 | 7.71 | 1.86 |
| 1998-05-23 | Aaron Sele | R | 28 | L 7-3 | vs KCA | 10 | 118 | W | 9.0 | 8 | 3 | 2 | 0 | 0 | 9 | 122 | 42 | 80 | 66% | 8-2 | 2.55 | 1.12 |
| 1998-05-24 | Rick Helling | R | 27 | W 3-8 | vs KCA | 10 | 44 | L | 6.2 | 8 | 5 | 5 | 1 | 1 | 4 | 115 | 39 | 76 | 66% | 7-2 | 4.43 | 1.33 |
| 1998-05-25 | Darren Oliver | L | 28 | W 3-9 | vs MIN | 10 | 79 | L | 3.2 | 9 | 9 | 6 | 1 | 1 | 4 | 75 | 29 | 46 | 61% | 2-5 | 6.62 | 1.74 |
| 1998-05-27 | John Burkett | R | 33 | W 5-6 | vs MIN | 11 | 262 | - | 5.2 | 9 | 5 | 4 | 0 | 1 | 3 | 86 | 34 | 52 | 60% | 3-4 | 7.20 | 1.54 |
| 1998-05-28 | Bobby Witt | R | 34 | L 2-5 | @ BAL | 10 | 348 | L | 5.1 | 7 | 4 | 4 | 0 | 2 | 2 | 91 | 35 | 56 | 62% | 4-3 | 7.67 | 1.85 |
| 1998-05-29 | Aaron Sele | R | 28 | L 3-6 | @ BAL | 11 | 119 | L | 3.2 | 7 | 5 | 5 | 2 | 1 | 4 | 59 | 28 | 31 | 53% | 8-3 | 3.04 | 1.18 |
| 1998-05-30 | Rick Helling | R | 27 | W 10-8 | @ BAL | 11 | 45 | - | 5.1 | 8 | 5 | 5 | 0 | 4 | 3 | 107 | 45 | 62 | 58% | 7-2 | 4.75 | 1.40 |
| 1998-05-31 | Darren Oliver | L | 28 | W 9-5 | @ BAL | 11 | 80 | W | 5.0 | 7 | 3 | 3 | 0 | 4 | 3 | 79 | 39 | 40 | 51% | 3-5 | 6.52 | 1.78 |
| 1998-06-01 | John Burkett | R | 34 | L 1-4 | @ TBA | 12 | 263 | L | 7.0 | 7 | 4 | 4 | 1 | 0 | 6 | 99 | 34 | 65 | 66% | 3-5 | 7.00 | 1.49 |
| 1998-06-02 | Bobby Witt | R | 34 | W 7-3 | @ TBA | 11 | 349 | W | 5.1 | 7 | 3 | 3 | 1 | 4 | 3 | 89 | 41 | 48 | 54% | 5-3 | 7.35 | 1.85 |
| 1998-06-03 | Aaron Sele | R | 28 | W 16-10 | @ OAK | 12 | 120 | - | 4.0 | 12 | 10 | 8 | 2 | 3 | 2 | 103 | 50 | 53 | 51% | 8-3 | 3.78 | 1.31 |
| 1998-06-04 | Rick Helling | R | 27 | L 1-6 | @ OAK | 12 | 46 | L | 7.0 | 8 | 4 | 4 | 1 | 2 | 5 | 125 | 49 | 76 | 61% | 7-3 | 4.78 | 1.41 |
| 1998-06-05 | Darren Oliver | L | 28 | L 8-7 | vs SDN | 12 | 81 | - | 6.2 | 9 | 6 | 6 | 0 | 1 | 10 | 111 | 36 | 75 | 68% | 3-5 | 6.75 | 1.77 |
| 1998-06-06 | John Burkett | R | 34 | L 3-0 | vs SDN | 13 | 264 | W | 8.0 | 5 | 0 | 0 | 0 | 1 | 4 | 118 | 44 | 74 | 63% | 4-5 | 6.30 | 1.41 |
| 1998-06-07 | Bobby Witt | R | 34 | W 8-17 | vs SDN | 12 | 350 | - | 6.1 | 5 | 6 | 5 | 1 | 4 | 0 | 93 | 44 | 49 | 53% | 5-3 | 7.36 | 1.82 |
| 1998-06-08 | Aaron Sele | R | 28 | W 3-1 | @ COL | 13 | 121 | W | 8.0 | 5 | 1 | 1 | 0 | 4 | 6 | 124 | 50 | 74 | 60% | 9-3 | 3.54 | 1.29 |
| 1998-06-09 | Rick Helling | R | 27 | W 5-2 | @ COL | 13 | 47 | W | 6.1 | 5 | 2 | 2 | 1 | 5 | 5 | 99 | 42 | 57 | 58% | 8-3 | 4.60 | 1.41 |
| 1998-06-10 | Darren Oliver | L | 28 | L 8-9 | @ COL | 13 | 82 | - | 5.0 | 8 | 6 | 6 | 0 | 4 | 1 | 101 | 46 | 55 | 54% | 3-5 | 7.04 | 1.81 |
| 1998-06-12 | John Burkett | R | 34 | W 1-5 | vs ANA | 14 | 265 | L | 7.2 | 7 | 5 | 5 | 3 | 1 | 6 | 103 | 31 | 72 | 70% | 4-6 | 6.24 | 1.38 |
| 1998-06-13 | Aaron Sele | R | 28 | W 6-18 | vs ANA | 14 | 122 | L | 4.0 | 7 | 8 | 7 | 0 | 2 | 7 | 91 | 35 | 56 | 62% | 9-4 | 4.06 | 1.33 |
| 1998-06-14 | Rick Helling | R | 27 | L 4-2 | vs ANA | 14 | 48 | W | 8.0 | 2 | 2 | 2 | 2 | 1 | 7 | 96 | 35 | 61 | 64% | 9-3 | 4.40 | 1.32 |
| 1998-06-15 | Bobby Witt | R | 34 | W 5-8 | vs ANA | 13 | 351 | L | 3.1 | 8 | 6 | 5 | 2 | 0 | 1 | 54 | 16 | 38 | 70% | 5-4 | 7.70 | 1.86 |
| 1998-06-16 | Matt Perisho | L | 23 | W 7-9 | vs OAK | 1 | 9 | L | 2.1 | 5 | 7 | 6 | 2 | 3 | 1 | 65 | 32 | 33 | 51% | 0-1 | 27.00 | 4.00 |
| 1998-06-17 | John Burkett | R | 34 | W 2-3 | vs OAK | 15 | 266 | L | 7.2 | 11 | 3 | 1 | 0 | 1 | 4 | 116 | 42 | 74 | 64% | 4-7 | 5.87 | 1.40 |
| 1998-06-18 | Aaron Sele | R | 28 | L 3-2 | vs OAK | 15 | 123 | W | 6.2 | 6 | 2 | 2 | 0 | 7 | 6 | 122 | 54 | 68 | 56% | 10-4 | 3.96 | 1.37 |
| 1998-06-19 | Rick Helling | R | 28 | W 7-3 | @ ANA | 15 | 49 | W | 7.0 | 9 | 3 | 3 | 1 | 0 | 5 | 106 | 37 | 69 | 65% | 10-3 | 4.37 | 1.32 |
| 1998-06-20 | Todd Van Poppel | R | 27 | L 3-8 | @ ANA | 1 | 70 | L | 2.0 | 4 | 5 | 5 | 1 | 5 | 2 | 0 | 0 | 0 | -- | 0-1 | 22.50 | 4.50 |
| 1998-06-21 | Matt Perisho | L | 23 | L 7-10 | @ ANA | 2 | 10 | L | 2.2 | 10 | 10 | 9 | 0 | 5 | 1 | 83 | 41 | 42 | 51% | 0-2 | 27.00 | 4.60 |
| 1998-06-22 | John Burkett | R | 34 | W 0-6 | vs ARI | 16 | 267 | L | 7.1 | 9 | 5 | 5 | 0 | 0 | 4 | 98 | 33 | 65 | 66% | 4-8 | 5.85 | 1.38 |
| 1998-06-23 | Aaron Sele | R | 28 | L 16-5 | vs ARI | 16 | 124 | W | 7.0 | 10 | 4 | 3 | 0 | 1 | 8 | 119 | 44 | 75 | 63% | 11-4 | 3.95 | 1.38 |
| 1998-06-24 | Rick Helling | R | 28 | W 3-2 | @ ARI | 16 | 50 | W | 7.1 | 5 | 2 | 1 | 0 | 3 | 8 | 115 | 38 | 77 | 67% | 11-3 | 4.17 | 1.31 |
| 1998-06-25 | Todd Van Poppel | R | 27 | W 9-4 | @ ARI | 2 | 71 | W | 8.1 | 6 | 4 | 4 | 2 | 2 | 1 | 101 | 34 | 67 | 66% | 1-1 | 8.10 | 1.70 |
| 1998-06-26 | Darren Oliver | L | 28 | W 7-3 | @ SFN | 14 | 83 | W | 6.0 | 7 | 3 | 3 | 1 | 2 | 3 | 92 | 37 | 55 | 60% | 4-5 | 6.84 | 1.79 |
| 1998-06-27 | John Burkett | R | 34 | L 5-6 | @ SFN | 17 | 268 | - | 6.0 | 5 | 3 | 2 | 0 | 3 | 7 | 97 | 41 | 56 | 58% | 4-8 | 5.70 | 1.38 |
| 1998-06-28 | Aaron Sele | R | 28 | L 0-7 | @ SFN | 17 | 125 | L | 5.0 | 6 | 7 | 6 | 1 | 4 | 7 | 91 | 36 | 55 | 60% | 11-5 | 4.26 | 1.41 |
| 1998-06-30 | Rick Helling | R | 28 | W 1-4 | vs LAN | 17 | 51 | L | 6.1 | 8 | 4 | 4 | 1 | 4 | 7 | 112 | 42 | 70 | 63% | 11-4 | 4.26 | 1.34 |
| 1998-07-01 | Todd Van Poppel | R | 27 | W 5-7 | vs LAN | 3 | 72 | - | 6.0 | 8 | 4 | 4 | 1 | 1 | 5 | 98 | 36 | 62 | 63% | 1-1 | 7.31 | 1.63 |
| 1998-07-02 | Darren Oliver | L | 28 | W 1-4 | vs LAN | 15 | 84 | L | 5.0 | 9 | 4 | 4 | 1 | 2 | 3 | 93 | 35 | 58 | 62% | 4-6 | 6.86 | 1.81 |
| 1998-07-03 | John Burkett | R | 34 | W 2-8 | vs SEA | 18 | 269 | L | 6.1 | 10 | 7 | 7 | 1 | 1 | 4 | 107 | 34 | 73 | 68% | 4-9 | 5.95 | 1.40 |
| 1998-07-04 | Aaron Sele | R | 28 | L 9-2 | vs SEA | 18 | 126 | W | 6.0 | 5 | 0 | 0 | 0 | 3 | 3 | 102 | 44 | 58 | 57% | 12-5 | 4.04 | 1.41 |
| 1998-07-05 | Rick Helling | R | 28 | L 8-4 | vs SEA | 18 | 52 | - | 4.1 | 5 | 4 | 4 | 1 | 4 | 3 | 98 | 43 | 55 | 56% | 11-4 | 4.39 | 1.36 |
| 1998-07-09 | John Burkett | R | 34 | W 4-1 | @ OAK | 19 | 270 | W | 8.0 | 4 | 1 | 1 | 0 | 0 | 5 | 0 | 0 | 0 | -- | 5-9 | 5.63 | 1.34 |
| 1998-07-10 | Rick Helling | R | 28 | W 1-0 | @ OAK | 19 | 53 | W | 8.0 | 4 | 0 | 0 | 0 | 4 | 2 | 109 | 45 | 64 | 59% | 12-4 | 4.11 | 1.34 |
| 1998-07-11 | Aaron Sele | R | 28 | W 4-2 | @ OAK | 19 | 127 | - | 7.2 | 6 | 2 | 2 | 0 | 3 | 6 | 107 | 40 | 67 | 63% | 12-5 | 3.93 | 1.39 |
| 1998-07-12 | Darren Oliver | L | 28 | L 5-7 | @ OAK | 16 | 85 | L | 5.0 | 5 | 5 | 5 | 0 | 3 | 4 | 78 | 27 | 51 | 65% | 4-7 | 6.99 | 1.80 |
| 1998-07-13 | Todd Van Poppel | R | 27 | L 3-10 | @ SEA | 4 | 73 | L | 3.0 | 8 | 7 | 6 | 1 | 2 | 2 | 71 | 32 | 39 | 55% | 1-2 | 9.00 | 1.89 |
| 1998-07-14 | John Burkett | R | 34 | L 3-6 | @ SEA | 20 | 271 | L | 6.0 | 9 | 5 | 5 | 1 | 1 | 4 | 111 | 41 | 70 | 63% | 5-10 | 5.72 | 1.36 |
| 1998-07-15 | Rick Helling | R | 28 | W 3-14 | vs BAL | 20 | 54 | L | 4.1 | 7 | 8 | 8 | 1 | 5 | 3 | 86 | 41 | 45 | 52% | 12-5 | 4.53 | 1.39 |
| 1998-07-16 | Aaron Sele | R | 28 | W 3-9 | vs BAL | 20 | 128 | L | 4.1 | 12 | 6 | 5 | 0 | 3 | 3 | 108 | 45 | 63 | 58% | 12-6 | 4.15 | 1.46 |
| 1998-07-17 | Darren Oliver | L | 28 | L 7-4 | vs TBA | 17 | 86 | W | 7.0 | 10 | 4 | 3 | 0 | 0 | 4 | 107 | 37 | 70 | 65% | 5-7 | 6.75 | 1.77 |
| 1998-07-18 | Esteban Loaiza | R | 27 | L 9-8 | vs TBA | 15 | 88 | - | 5.2 | 8 | 6 | 4 | 1 | 1 | 6 | 82 | 22 | 60 | 73% | 6-5 | 4.64 | 1.39 |
| 1998-07-19 | John Burkett | R | 34 | L 7-4 | vs TBA | 21 | 272 | W | 7.0 | 10 | 4 | 4 | 0 | 1 | 4 | 110 | 45 | 65 | 59% | 6-10 | 5.69 | 1.37 |
| 1998-07-21 | Rick Helling | R | 28 | W 15-5 | @ KCA | 21 | 55 | W | 9.0 | 7 | 5 | 4 | 2 | 0 | 3 | 135 | 56 | 79 | 59% | 13-5 | 4.50 | 1.35 |
| 1998-07-22 | Aaron Sele | R | 28 | L 4-7 | @ KCA | 21 | 129 | L | 6.1 | 10 | 6 | 6 | 1 | 2 | 7 | 95 | 32 | 63 | 66% | 12-7 | 4.37 | 1.49 |
| 1998-07-23 | Darren Oliver | L | 28 | W 8-4 | @ KCA | 18 | 87 | - | 4.2 | 9 | 4 | 4 | 0 | 1 | 5 | 80 | 31 | 49 | 61% | 5-7 | 6.77 | 1.78 |
| 1998-07-24 | Esteban Loaiza | R | 27 | L 3-5 | @ MIN | 16 | 89 | L | 5.2 | 10 | 4 | 4 | 0 | 1 | 2 | 110 | 39 | 71 | 65% | 6-6 | 4.72 | 1.42 |
| 1998-07-25 | John Burkett | R | 34 | L 6-7 | @ MIN | 22 | 273 | - | 5.0 | 6 | 5 | 5 | 0 | 3 | 4 | 88 | 34 | 54 | 61% | 6-10 | 5.81 | 1.38 |
| 1998-07-26 | Rick Helling | R | 28 | L 3-11 | @ MIN | 22 | 56 | L | 6.0 | 9 | 6 | 6 | 1 | 2 | 6 | 108 | 40 | 68 | 63% | 13-6 | 4.68 | 1.37 |
| 1998-07-28 | Aaron Sele | R | 28 | L 3-8 | @ TOR | 22 | 130 | L | 5.1 | 9 | 6 | 5 | 0 | 5 | 3 | 114 | 51 | 63 | 55% | 12-8 | 4.50 | 1.52 |
| 1998-07-29 | Darren Oliver | L | 28 | W 9-6 | @ TOR | 19 | 88 | W | 6.1 | 6 | 4 | 2 | 0 | 4 | 2 | 128 | 56 | 72 | 56% | 6-7 | 6.55 | 1.78 |
| 1998-07-30 | Esteban Loaiza | R | 27 | L 0-1 | @ TOR | 17 | 90 | L | 8.0 | 4 | 1 | 1 | 0 | 2 | 9 | 123 | 50 | 73 | 59% | 6-7 | 4.46 | 1.37 |
| 1998-07-31 | John Burkett | R | 34 | W 2-10 | vs CHA | 23 | 274 | L | 5.2 | 8 | 6 | 5 | 1 | 0 | 7 | 102 | 36 | 66 | 65% | 6-11 | 5.88 | 1.38 |
| 1998-08-01 | Rick Helling | R | 28 | L 8-1 | vs CHA | 23 | 57 | W | 5.0 | 8 | 1 | 1 | 0 | 2 | 6 | 103 | 36 | 67 | 65% | 14-6 | 4.59 | 1.39 |
| 1998-08-02 | Aaron Sele | R | 28 | L 12-3 | vs CHA | 23 | 131 | W | 8.0 | 10 | 3 | 2 | 0 | 2 | 2 | 107 | 32 | 75 | 70% | 13-8 | 4.38 | 1.52 |
| 1998-08-04 | Todd Stottlemyre | R | 33 | L 11-9 | vs TOR | 24 | 291 | W | 5.2 | 6 | 3 | 2 | 1 | 4 | 8 | 117 | 52 | 65 | 56% | 10-9 | 3.50 | 1.24 |
| 1998-08-05 | Esteban Loaiza | R | 27 | L 4-3 | vs TOR | 18 | 91 | - | 8.0 | 5 | 2 | 2 | 0 | 2 | 5 | 112 | 39 | 73 | 65% | 6-7 | 4.31 | 1.34 |
| 1998-08-06 | John Burkett | R | 34 | L 7-4 | vs BOS | 24 | 275 | W | 6.1 | 6 | 3 | 3 | 2 | 2 | 3 | 83 | 30 | 53 | 64% | 7-11 | 5.82 | 1.38 |
| 1998-08-07 | Rick Helling | R | 28 | L 4-3 | vs BOS | 24 | 58 | W | 6.0 | 7 | 3 | 3 | 0 | 2 | 3 | 97 | 44 | 53 | 55% | 15-6 | 4.59 | 1.39 |
| 1998-08-08 | Aaron Sele | R | 28 | W 1-11 | vs BOS | 24 | 132 | L | 4.0 | 10 | 7 | 7 | 2 | 2 | 4 | 79 | 31 | 48 | 61% | 13-9 | 4.68 | 1.56 |
| 1998-08-09 | Todd Stottlemyre | R | 33 | W 8-14 | vs BOS | 25 | 292 | L | 4.0 | 4 | 6 | 5 | 1 | 5 | 6 | 95 | 40 | 55 | 58% | 10-10 | 3.68 | 1.26 |
| 1998-08-11 | Esteban Loaiza | R | 27 | W 2-1 | @ CLE | 19 | 92 | W | 7.1 | 7 | 1 | 1 | 1 | 1 | 3 | 87 | 29 | 58 | 67% | 7-7 | 4.14 | 1.33 |
| 1998-08-12 | John Burkett | R | 34 | L 3-6 | @ CLE | 25 | 276 | L | 5.0 | 11 | 5 | 5 | 0 | 2 | 1 | 96 | 40 | 56 | 58% | 7-12 | 5.92 | 1.42 |
| 1998-08-13 | Rick Helling | R | 28 | L 0-2 | @ NYA | 25 | 59 | L | 8.0 | 3 | 2 | 2 | 0 | 3 | 8 | 126 | 48 | 78 | 62% | 15-7 | 4.47 | 1.36 |
| 1998-08-14 | Aaron Sele | R | 28 | L 4-6 | @ NYA | 25 | 133 | L | 6.2 | 8 | 6 | 6 | 2 | 1 | 7 | 101 | 37 | 64 | 63% | 13-10 | 4.84 | 1.56 |
| 1998-08-15 | Todd Stottlemyre | R | 33 | W 16-5 | @ NYA | 26 | 293 | W | 6.0 | 9 | 5 | 5 | 0 | 6 | 4 | 115 | 50 | 65 | 57% | 11-10 | 3.81 | 1.31 |
| 1998-08-16 | Esteban Loaiza | R | 27 | L 5-6 | @ NYA | 20 | 93 | - | 5.2 | 12 | 5 | 5 | 2 | 0 | 6 | 98 | 26 | 72 | 73% | 7-7 | 4.30 | 1.36 |
| 1998-08-18 | John Burkett | R | 34 | L 1-4 | @ BOS | 26 | 277 | L | 5.2 | 5 | 4 | 4 | 0 | 1 | 6 | 82 | 32 | 50 | 61% | 7-13 | 5.93 | 1.40 |
| 1998-08-18 | Rick Helling | R | 28 | L 4-5 | @ BOS | 26 | 60 | - | 5.2 | 6 | 4 | 4 | 0 | 4 | 6 | 134 | 55 | 79 | 59% | 15-7 | 4.53 | 1.37 |
| 1998-08-19 | Aaron Sele | R | 28 | L 3-1 | vs CLE | 26 | 134 | W | 8.0 | 5 | 1 | 1 | 0 | 1 | 3 | 102 | 41 | 61 | 60% | 14-10 | 4.66 | 1.52 |
| 1998-08-20 | Todd Stottlemyre | R | 33 | L 8-2 | vs CLE | 27 | 294 | W | 5.1 | 10 | 2 | 2 | 0 | 3 | 5 | 105 | 40 | 65 | 62% | 12-10 | 3.81 | 1.34 |
| 1998-08-21 | Esteban Loaiza | R | 27 | W 0-5 | vs NYA | 21 | 94 | L | 6.1 | 8 | 5 | 5 | 4 | 3 | 5 | 114 | 48 | 66 | 58% | 7-8 | 4.43 | 1.38 |
| 1998-08-22 | John Burkett | R | 34 | W 9-12 | vs NYA | 27 | 278 | - | 5.0 | 10 | 5 | 3 | 0 | 2 | 3 | 100 | 43 | 57 | 57% | 7-13 | 5.91 | 1.43 |
| 1998-08-23 | Rick Helling | R | 28 | L 12-10 | vs NYA | 27 | 61 | W | 6.0 | 7 | 5 | 5 | 3 | 0 | 9 | 105 | 35 | 70 | 67% | 16-7 | 4.63 | 1.37 |
| 1998-08-24 | Aaron Sele | R | 28 | L 6-5 | vs DET | 27 | 135 | W | 6.1 | 9 | 3 | 3 | 0 | 1 | 2 | 97 | 35 | 62 | 64% | 15-10 | 4.63 | 1.51 |
| 1998-08-25 | Todd Stottlemyre | R | 33 | W 7-8 | vs DET | 28 | 295 | L | 3.1 | 8 | 5 | 5 | 0 | 0 | 4 | 65 | 25 | 40 | 62% | 12-11 | 3.97 | 1.35 |
| 1998-08-26 | Esteban Loaiza | R | 27 | L 8-6 | vs DET | 22 | 95 | W | 5.0 | 8 | 5 | 5 | 1 | 0 | 2 | 63 | 23 | 40 | 63% | 8-8 | 4.59 | 1.38 |
| 1998-08-28 | Rick Helling | R | 28 | W 6-5 | @ CHA | 28 | 62 | - | 7.0 | 6 | 5 | 5 | 3 | 0 | 7 | 102 | 34 | 68 | 67% | 16-7 | 4.70 | 1.35 |
| 1998-08-28 | John Burkett | R | 34 | L 7-8 | @ CHA | 28 | 279 | - | 5.0 | 8 | 3 | 3 | 1 | 0 | 2 | 76 | 26 | 50 | 66% | 7-13 | 5.90 | 1.44 |
| 1998-08-29 | Aaron Sele | R | 28 | W 5-3 | @ CHA | 28 | 136 | W | 8.0 | 6 | 3 | 2 | 0 | 2 | 7 | 121 | 44 | 77 | 64% | 16-10 | 4.52 | 1.49 |
| 1998-08-30 | Todd Stottlemyre | R | 33 | L 3-5 | @ CHA | 29 | 296 | L | 6.0 | 6 | 5 | 3 | 0 | 4 | 7 | 114 | 51 | 63 | 55% | 12-12 | 3.98 | 1.36 |
| 1998-08-31 | Esteban Loaiza | R | 27 | W 13-2 | @ DET | 23 | 96 | W | 8.0 | 6 | 2 | 2 | 2 | 3 | 2 | 105 | 43 | 62 | 59% | 9-8 | 4.47 | 1.37 |
| 1998-09-01 | John Burkett | R | 34 | L 8-12 | @ DET | 29 | 280 | - | 0.2 | 5 | 4 | 4 | 0 | 2 | 0 | 22 | 12 | 10 | 45% | 7-13 | 6.10 | 1.48 |
| 1998-09-02 | Rick Helling | R | 28 | W 5-3 | @ DET | 29 | 63 | W | 6.1 | 6 | 1 | 1 | 0 | 4 | 7 | 137 | 54 | 83 | 61% | 17-7 | 4.59 | 1.36 |
| 1998-09-04 | Aaron Sele | R | 28 | L 9-3 | vs MIN | 29 | 137 | W | 7.0 | 7 | 3 | 1 | 0 | 2 | 5 | 107 | 40 | 67 | 63% | 17-10 | 4.41 | 1.48 |
| 1998-09-05 | Todd Stottlemyre | R | 33 | W 4-7 | vs MIN | 30 | 297 | - | 7.1 | 8 | 3 | 3 | 1 | 0 | 3 | 92 | 31 | 61 | 66% | 12-12 | 3.98 | 1.36 |
| 1998-09-06 | Esteban Loaiza | R | 27 | W 5-6 | vs MIN | 24 | 97 | - | 7.0 | 10 | 3 | 3 | 0 | 0 | 5 | 107 | 33 | 74 | 69% | 9-8 | 4.44 | 1.37 |
| 1998-09-07 | Rick Helling | R | 28 | L 6-0 | vs MIN | 30 | 64 | W | 9.0 | 3 | 0 | 0 | 0 | 3 | 8 | 119 | 45 | 74 | 62% | 18-7 | 4.39 | 1.33 |
| 1998-09-08 | John Burkett | R | 34 | L 7-6 | vs KCA | 30 | 281 | - | 4.2 | 9 | 3 | 3 | 0 | 3 | 4 | 87 | 33 | 54 | 62% | 7-13 | 6.08 | 1.50 |
| 1998-09-09 | Aaron Sele | R | 28 | L 8-0 | vs KCA | 30 | 138 | W | 7.0 | 5 | 0 | 0 | 0 | 1 | 7 | 121 | 41 | 80 | 66% | 18-10 | 4.25 | 1.46 |
| 1998-09-11 | Todd Stottlemyre | R | 33 | L 2-3 | @ TBA | 31 | 298 | L | 7.2 | 5 | 3 | 3 | 1 | 3 | 6 | 103 | 41 | 62 | 60% | 12-13 | 3.96 | 1.34 |
| 1998-09-12 | Rick Helling | R | 28 | W 8-2 | @ TBA | 31 | 65 | W | 8.0 | 8 | 2 | 2 | 0 | 3 | 4 | 128 | 49 | 79 | 62% | 19-7 | 4.30 | 1.33 |
| 1998-09-13 | Esteban Loaiza | R | 27 | L 5-10 | @ TBA | 25 | 98 | L | 1.2 | 7 | 6 | 6 | 1 | 2 | 0 | 43 | 14 | 29 | 67% | 9-9 | 4.73 | 1.41 |
| 1998-09-14 | Aaron Sele | R | 28 | L 0-1 | @ BAL | 31 | 139 | - | 6.2 | 6 | 0 | 0 | 0 | 6 | 2 | 124 | 62 | 62 | 50% | 18-10 | 4.12 | 1.48 |
| 1998-09-15 | Esteban Loaiza | R | 27 | W 6-5 | @ BAL | 26 | 99 | - | 2.2 | 6 | 5 | 5 | 1 | 1 | 1 | 53 | 23 | 30 | 57% | 9-9 | 4.91 | 1.43 |
| 1998-09-16 | Todd Stottlemyre | R | 33 | L 5-3 | vs ANA | 32 | 299 | W | 8.0 | 6 | 1 | 1 | 1 | 1 | 7 | 120 | 44 | 76 | 63% | 13-13 | 3.85 | 1.33 |
| 1998-09-17 | Rick Helling | R | 28 | L 7-6 | vs ANA | 32 | 66 | - | 1.1 | 7 | 6 | 6 | 1 | 2 | 0 | 50 | 21 | 29 | 58% | 19-7 | 4.54 | 1.37 |
| 1998-09-18 | John Burkett | R | 34 | L 3-1 | vs OAK | 31 | 282 | W | 8.0 | 4 | 1 | 1 | 0 | 0 | 1 | 89 | 29 | 60 | 67% | 8-13 | 5.87 | 1.46 |
| 1998-09-19 | Aaron Sele | R | 28 | W 4-8 | vs OAK | 32 | 140 | L | 3.1 | 8 | 4 | 4 | 0 | 2 | 4 | 86 | 38 | 48 | 56% | 18-11 | 4.22 | 1.50 |
| 1998-09-20 | Esteban Loaiza | R | 27 | W 3-6 | vs OAK | 27 | 100 | L | 5.1 | 6 | 6 | 3 | 2 | 5 | 7 | 107 | 43 | 64 | 60% | 9-10 | 4.93 | 1.45 |
| 1998-09-21 | Todd Stottlemyre | R | 33 | W 9-1 | @ ANA | 33 | 300 | W | 7.0 | 6 | 0 | 0 | 0 | 4 | 7 | 131 | 46 | 85 | 65% | 14-13 | 3.73 | 1.33 |
| 1998-09-22 | Rick Helling | R | 28 | W 9-1 | @ ANA | 33 | 67 | W | 8.0 | 3 | 1 | 1 | 0 | 0 | 5 | 110 | 39 | 71 | 65% | 20-7 | 4.42 | 1.33 |
| 1998-09-23 | John Burkett | R | 34 | W 7-1 | @ ANA | 32 | 283 | W | 8.0 | 2 | 1 | 1 | 0 | 1 | 7 | 109 | 41 | 68 | 62% | 9-13 | 5.68 | 1.42 |
| 1998-09-24 | Aaron Sele | R | 28 | W 9-3 | @ SEA | 33 | 141 | W | 6.0 | 8 | 3 | 3 | 0 | 5 | 3 | 110 | 46 | 64 | 58% | 19-11 | 4.23 | 1.52 |
| 1998-09-25 | Esteban Loaiza | R | 27 | L 4-15 | @ SEA | 28 | 101 | L | 3.0 | 6 | 6 | 6 | 0 | 1 | 2 | 56 | 19 | 37 | 66% | 9-11 | 5.16 | 1.47 |
| 1998-09-26 | Eric Gunderson | L | 32 | L 2-5 | @ SEA | 1 | 5 | L | 1.2 | 3 | 4 | 4 | 0 | 1 | 1 | 39 | 17 | 22 | 56% | 0-3 | 5.16 | 1.57 |
| 1998-09-27 | Jonathan Johnson | R | 24 | W 12-6 | @ SEA | 1 | 1 | - | 4.1 | 5 | 4 | 4 | 0 | 5 | 3 | 87 | 41 | 46 | 53% | 0-0 | 9.00 | 2.50 |