| Starter | Tm | Tier | Game |
|---|---|---|---|
| Greg Maddux | ATL | 12.13 | 199809080_ATL_WAS |
| Pedro Martinez | BOS | 5.28 | 199809080_NYA_BOS |
| Omar Daal | ARI | 2.77 | 199809060_HOU_ARI |
| Francisco Cordova | PIT | 2.54 | 199809080_MIL_PIT |
| Andy Ashby | SDN | 2.53 | 199809080_SFN_SDN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pedro Astacio | COL | -6.22 | 199809070_MIA_COL |
| John Burkett | TEX | -4.18 | 199809080_KCA_TEX |
| Doug Drabek | BAL | -3.86 | 199809070_BAL_SEA |
| Darren Oliver | SLN | -2.07 | 199809070_CHN_SLN |
| Jason Bere | CIN | -1.52 | 199809080_CIN_HOU |
Based on accumulated WAA for this season up to 1998-09-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.29 | Greg Maddux | 232.7 | ATL |
| +005+ | 10.62 | Kevin Brown | 227 | SDN |
| +007+ | 8.81 | Tom Glavine | 203.3 | ATL |
| +008+ | 8.77 | Roger Clemens | 206 | TOR |
| +009+ | 8.62 | Pedro Martinez | 213.3 | BOS |
| +013+ | 7.84 | Al Leiter | 165.7 | NYN |
| +019+ | 7.13 | Kenny Rogers | 210.7 | OAK |
| +024+ | 6.52 | Curt Schilling | 237.7 | PHI |
| +025+ | 6.52 | Chuck Finley | 204.7 | ANA |
| +032+ | 5.59 | Randy Johnson | 223 | TOT |
| +034+ | 5.5 | Andy Ashby | 214 | SDN |
| +036+ | 5.42 | Dustin Hermanson | 163.7 | WAS |
| +037+ | 5.41 | Francisco Cordova | 200.3 | PIT |
| +045+ | 5.24 | David Wells | 198 | NYA |
| +047+ | 5.2 | Rick Reed | 195 | NYN |
| +046+ | 5.2 | Omar Daal | 141.7 | ARI |
| +051+ | 4.82 | Jamie Moyer | 212.3 | SEA |
| +055+ | 4.71 | Pete Harnisch | 182 | CIN |
| +056+ | 4.68 | John Smoltz | 149.7 | ATL |
| +060+ | 4.48 | Brian Bohanon | 126.7 | TOT |
| +062+ | 4.37 | Matt Morris | 86.3 | SLN |
| +064+ | 4.27 | Mike Mussina | 177.3 | BAL |
| +070+ | 4 | David Cone | 188 | NYA |
| +073+ | 3.92 | Rolando Arrojo | 187.7 | TBA |
| +084+ | 3.64 | Mike Hampton | 185 | HOU |
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