| Starter | Tm | Tier | Game |
|---|---|---|---|
| Greg Maddux | ATL | 11.39 | 199809130_MIA_ATL |
| Kevin Brown | SDN | 9.51 | 199809150_CHN_SDN |
| Pedro Martinez | BOS | 5.44 | 199809140_BOS_NYA |
| Al Leiter | NYN | 4.68 | 199809152_NYN_HOU |
| Kenny Rogers | OAK | 4.08 | 199809150_OAK_KCA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Oquist | OAK | -4.87 | 199809130_OAK_MIN |
| Jeff Juden | ANA | -2.4 | 199809150_ANA_TBA |
| Jason Bere | CIN | -2.35 | 199809130_ARI_CIN |
| Mike Sirotka | CHA | -1.84 | 199809150_CHA_DET |
| Darryl Kile | COL | -1.78 | 199809150_COL_LAN |
Based on accumulated WAA for this season up to 1998-09-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.92 | Greg Maddux | 238.7 | ATL |
| +003+ | 11.21 | Kevin Brown | 243 | SDN |
| +006+ | 9.23 | Tom Glavine | 215.3 | ATL |
| +007+ | 8.74 | Pedro Martinez | 220.3 | BOS |
| +009+ | 8.65 | Roger Clemens | 211 | TOR |
| +015+ | 7.97 | Al Leiter | 179.7 | NYN |
| +018+ | 7.1 | Kenny Rogers | 224.7 | OAK |
| +024+ | 6.75 | Curt Schilling | 251.7 | PHI |
| +026+ | 6.46 | Dustin Hermanson | 177.7 | WAS |
| +029+ | 5.93 | Omar Daal | 148.7 | ARI |
| +030+ | 5.87 | Randy Johnson | 230 | TOT |
| +038+ | 5.54 | Pete Harnisch | 196 | CIN |
| +042+ | 5.48 | Chuck Finley | 210.3 | ANA |
| +046+ | 5.29 | Francisco Cordova | 206.3 | PIT |
| +051+ | 5.1 | Mike Mussina | 185.3 | BAL |
| +052+ | 5.09 | Brian Bohanon | 134.7 | TOT |
| +054+ | 5.02 | David Wells | 204 | NYA |
| +056+ | 5 | John Smoltz | 156.7 | ATL |
| +059+ | 4.95 | Rick Reed | 201.3 | NYN |
| +068+ | 4.53 | Jamie Moyer | 219.3 | SEA |
| +071+ | 4.32 | Jose Lima | 221.3 | HOU |
| +072+ | 4.23 | Rolando Arrojo | 200.7 | TBA |
| +075+ | 4.02 | Carlos Perez | 225.3 | TOT |
| +078+ | 3.91 | Mike Hampton | 192.7 | HOU |
| +083+ | 3.75 | David Cone | 193.7 | NYA |
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