| Starter | Tm | Tier | Game |
|---|---|---|---|
| Greg Maddux | ATL | 15.31 | 199808230_LAN_ATL |
| Kevin Brown | SDN | 7.6 | 199808250_SDN_PHI |
| Pedro Martinez | BOS | 4.02 | 199808230_BOS_MIN |
| Al Leiter | NYN | 3.65 | 199808230_ARI_NYN |
| Roger Clemens | TOR | 3.31 | 199808250_KCA_TOR |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Chris Haney | KCA | -3.56 | 199808250_KCA_TOR |
| Ken Cloude | SEA | -3.22 | 199808240_CHA_SEA |
| Charles Nagy | CLE | -2.4 | 199808250_SEA_CLE |
| Darryl Kile | COL | -2.35 | 199808250_MIL_COL |
| Jason Bere | CIN | -1.79 | 199808230_CIN_WAS |
Based on accumulated WAA for this season up to 1998-08-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.43 | Greg Maddux | 211.7 | ATL |
| +003+ | 9.65 | Kevin Brown | 211 | SDN |
| +006+ | 8.23 | Tom Glavine | 189.3 | ATL |
| +008+ | 7.65 | Pedro Martinez | 191 | BOS |
| +010+ | 7.51 | Andy Ashby | 200.3 | SDN |
| +011+ | 7.36 | Roger Clemens | 189 | TOR |
| +015+ | 6.8 | Al Leiter | 148.7 | NYN |
| +021+ | 6.4 | Kenny Rogers | 195 | OAK |
| +023+ | 6.28 | Chuck Finley | 187.3 | ANA |
| +025+ | 6.02 | Curt Schilling | 221.7 | PHI |
| +026+ | 5.79 | Omar Daal | 123 | ARI |
| +038+ | 5.03 | Bartolo Colon | 181.3 | CLE |
| +042+ | 4.89 | Rick Reed | 181.3 | NYN |
| +045+ | 4.71 | Pete Harnisch | 169.7 | CIN |
| +044+ | 4.71 | Francisco Cordova | 180.3 | PIT |
| +048+ | 4.53 | David Wells | 174 | NYA |
| +053+ | 4.32 | Brian Bohanon | 111.7 | TOT |
| +058+ | 4.1 | Jamie Moyer | 193 | SEA |
| +064+ | 3.94 | Dustin Hermanson | 149 | WAS |
| +071+ | 3.58 | Denny Neagle | 189 | ATL |
| +072+ | 3.51 | Mike Mussina | 163.3 | BAL |
| +074+ | 3.43 | Shane Reynolds | 194.3 | HOU |
| +080+ | 3.34 | Sean Bergman | 144 | HOU |
| +081+ | 3.28 | Justin Thompson | 187.7 | DET |
| +083+ | 3.27 | Jose Lima | 190.7 | HOU |
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