| Starter | Tm | Tier | Game |
|---|---|---|---|
| Greg Maddux | ATL | 15.12 | 199807310_SLN_ATL |
| Kevin Brown | SDN | 5.83 | 199807310_SDN_WAS |
| Al Leiter | NYN | 4.61 | 199807290_SDN_NYN |
| Curt Schilling | PHI | 3.42 | 199807310_SFN_PHI |
| Bartolo Colon | CLE | 2.5 | 199807310_CLE_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Castillo | DET | -4.51 | 199807290_BAL_DET |
| Jamey Wright | COL | -4.07 | 199807310_COL_CHN |
| Bobby Witt | SLN | -3.89 | 199807290_MIL_SLN |
| Darren Oliver | TEX | -3.12 | 199807290_TEX_TOR |
| Andy Larkin | MIA | -1.61 | 199807290_MIA_HOU |
Based on accumulated WAA for this season up to 1998-07-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.06 | Greg Maddux | 184.7 | ATL |
| +007+ | 6.94 | Andy Ashby | 168.3 | SDN |
| +008+ | 6.75 | Kevin Brown | 172.7 | SDN |
| +009+ | 6.72 | Pedro Martinez | 156.3 | BOS |
| +010+ | 6.23 | Al Leiter | 120.7 | NYN |
| +012+ | 6.11 | Tom Glavine | 151.3 | ATL |
| +014+ | 6.04 | Kenny Rogers | 159.7 | OAK |
| +021+ | 5.6 | Rick Reed | 147.3 | NYN |
| +022+ | 5.2 | Bartolo Colon | 157.3 | CLE |
| +024+ | 5.14 | Chuck Finley | 152 | ANA |
| +027+ | 4.65 | Curt Schilling | 184.7 | PHI |
| +030+ | 4.47 | Rolando Arrojo | 147.7 | TBA |
| +032+ | 4.38 | Brad Radke | 147.3 | MIN |
| +038+ | 4.14 | Roger Clemens | 148 | TOR |
| +041+ | 3.99 | Kerry Wood | 128.7 | CHN |
| +044+ | 3.87 | Francisco Cordova | 149 | PIT |
| +045+ | 3.81 | Pete Harnisch | 141.3 | CIN |
| +049+ | 3.55 | Omar Daal | 92 | ARI |
| +053+ | 3.45 | Jamie Moyer | 157 | SEA |
| +059+ | 3.32 | Denny Neagle | 163 | ATL |
| +061+ | 3.25 | David Cone | 135.3 | NYA |
| +064+ | 3.18 | Todd Stottlemyre | 161.3 | SLN |
| +065+ | 3.16 | Hideki Irabu | 120 | NYA |
| +076+ | 3 | Andy Pettitte | 157.7 | NYA |
| +082+ | 2.84 | Sean Bergman | 118.7 | HOU |
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