| Starter | Tm | Tier | Game |
|---|---|---|---|
| Kevin Brown | SDN | 8.04 | 199809050_SDN_COL |
| Tom Glavine | ATL | 5.5 | 199809040_ATL_NYN |
| Pedro Martinez | BOS | 5.26 | 199809030_BOS_TOR |
| Roger Clemens | TOR | 5.17 | 199809050_BOS_TOR |
| Al Leiter | NYN | 3.81 | 199809040_ATL_NYN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ken Cloude | SEA | -4.08 | 199809050_BAL_SEA |
| Darryl Kile | COL | -2.87 | 199809050_SDN_COL |
| Charles Nagy | CLE | -2.52 | 199809040_CLE_DET |
| Brian Powell | DET | -2.46 | 199809050_CLE_DET |
| Carlton Loewer | PHI | -1.8 | 199809050_PHI_MIL |
Based on accumulated WAA for this season up to 1998-09-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.54 | Greg Maddux | 225.7 | ATL |
| +004+ | 10.57 | Kevin Brown | 227 | SDN |
| +007+ | 8.74 | Roger Clemens | 206 | TOR |
| +006+ | 8.74 | Tom Glavine | 203.3 | ATL |
| +009+ | 8.44 | Pedro Martinez | 206 | BOS |
| +013+ | 7.8 | Al Leiter | 165.7 | NYN |
| +018+ | 7.1 | Kenny Rogers | 210.7 | OAK |
| +024+ | 6.47 | Curt Schilling | 237.7 | PHI |
| +027+ | 6.26 | Omar Daal | 137.7 | ARI |
| +028+ | 6.03 | Francisco Cordova | 196.3 | PIT |
| +029+ | 5.98 | Andy Ashby | 209 | SDN |
| +032+ | 5.66 | Chuck Finley | 196.7 | ANA |
| +038+ | 5.38 | Dustin Hermanson | 163.7 | WAS |
| +043+ | 5.19 | David Wells | 190 | NYA |
| +046+ | 4.99 | Rick Reed | 187.3 | NYN |
| +052+ | 4.64 | Pete Harnisch | 182 | CIN |
| +053+ | 4.63 | Randy Johnson | 214 | TOT |
| +067+ | 4.06 | Matt Morris | 79.3 | SLN |
| +068+ | 4.06 | Jamie Moyer | 205.3 | SEA |
| +071+ | 3.87 | Rolando Arrojo | 187.7 | TBA |
| +073+ | 3.82 | Mike Mussina | 169.3 | BAL |
| +076+ | 3.74 | Kerry Wood | 166.7 | CHN |
| +077+ | 3.7 | John Smoltz | 140.7 | ATL |
| +081+ | 3.6 | Denny Neagle | 202.3 | ATL |
| +082+ | 3.59 | Jose Lima | 205.3 | HOU |
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