| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | TOR | 5.44 | 199809210_BAL_TOR |
| Omar Daal | ARI | 2.6 | 199809220_ARI_COL |
| Randy Johnson | HOU | 2.43 | 199809230_HOU_SLN |
| Brian Bohanon | LAN | 2.24 | 199809230_SDN_LAN |
| John Smoltz | ATL | 1.99 | 199809230_ATL_MIA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pedro Astacio | COL | -5.43 | 199809230_ARI_COL |
| Mike Oquist | OAK | -4.76 | 199809230_OAK_SEA |
| Ken Cloude | SEA | -4.46 | 199809230_OAK_SEA |
| John Burkett | TEX | -3.55 | 199809230_TEX_ANA |
| Eric Milton | MIN | -2.52 | 199809220_CHA_MIN |
Based on accumulated WAA for this season up to 1998-09-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.66 | Greg Maddux | 245 | ATL |
| +003+ | 12.02 | Kevin Brown | 252 | SDN |
| +006+ | 10.09 | Tom Glavine | 224.3 | ATL |
| +008+ | 9.76 | Roger Clemens | 226.7 | TOR |
| +013+ | 8.71 | Al Leiter | 187.7 | NYN |
| +023+ | 6.96 | Curt Schilling | 260.7 | PHI |
| +024+ | 6.95 | Kenny Rogers | 229.7 | OAK |
| +025+ | 6.59 | Randy Johnson | 244.3 | TOT |
| +029+ | 6.17 | Brian Bohanon | 151.7 | TOT |
| +030+ | 6.13 | Dustin Hermanson | 183 | WAS |
| +031+ | 6.09 | John Smoltz | 167.7 | ATL |
| +032+ | 6.07 | Omar Daal | 162.7 | ARI |
| +033+ | 6.05 | Pete Harnisch | 202 | CIN |
| +036+ | 5.89 | Francisco Cordova | 214.3 | PIT |
| +042+ | 5.63 | Andy Ashby | 226.7 | SDN |
| +048+ | 5.47 | Chuck Finley | 223.3 | ANA |
| +054+ | 5.14 | Jamie Moyer | 234.3 | SEA |
| +057+ | 5.07 | Matt Morris | 109.7 | SLN |
| +062+ | 4.89 | Carlos Perez | 234.3 | TOT |
| +066+ | 4.84 | Rick Reed | 207.3 | NYN |
| +067+ | 4.83 | Mike Mussina | 201.3 | BAL |
| +070+ | 4.55 | Mike Hampton | 205.7 | HOU |
| +079+ | 4.13 | Shane Reynolds | 226.3 | HOU |
| +080+ | 4.08 | Rolando Arrojo | 202 | TBA |
| +082+ | 3.88 | Orlando Hernandez | 136 | NYA |
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