| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Glavine | ATL | 7.01 | 199806030_ATL_MIL |
| Curt Schilling | PHI | 6.87 | 199806020_WAS_PHI |
| Mike Hampton | HOU | 3.89 | 199806040_HOU_SDN |
| Andy Ashby | SDN | 3.55 | 199806040_HOU_SDN |
| Roger Clemens | TOR | 3.06 | 199806030_DET_TOR |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobby Witt | TEX | -5.38 | 199806020_TEX_TBA |
| Jamey Wright | COL | -2.1 | 199806020_ARI_COL |
| LaTroy Hawkins | MIN | -1.86 | 199806030_CLE_MIN |
| Chris Haney | KCA | -1.83 | 199806020_ANA_KCA |
| Matt Beech | PHI | -1.7 | 199806030_WAS_PHI |
Based on accumulated WAA for this season up to 1998-06-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.95 | Greg Maddux | 97.3 | ATL |
| +004+ | 4.94 | Chuck Finley | 93.3 | ANA |
| +005+ | 4.85 | Andy Ashby | 97.7 | SDN |
| +007+ | 4.49 | Tom Glavine | 81.3 | ATL |
| +009+ | 4.3 | Hideki Irabu | 62 | NYA |
| +010+ | 4.25 | Al Leiter | 67.3 | NYN |
| +011+ | 4.16 | Kevin Brown | 91 | SDN |
| +013+ | 4.04 | Curt Schilling | 99.7 | PHI |
| +012+ | 4.04 | Francisco Cordova | 82 | PIT |
| +014+ | 3.71 | Mike Hampton | 92 | HOU |
| +015+ | 3.7 | Ramon Martinez | 90 | LAN |
| +018+ | 3.68 | Rick Reed | 76 | NYN |
| +017+ | 3.68 | Pedro Martinez | 85.7 | BOS |
| +021+ | 3.26 | Carlos Perez | 97.7 | WAS |
| +025+ | 3.07 | Masato Yoshii | 60 | NYN |
| +028+ | 2.91 | Brad Radke | 83.7 | MIN |
| +029+ | 2.9 | Shane Reynolds | 90.3 | HOU |
| +031+ | 2.84 | Denny Neagle | 83.7 | ATL |
| +032+ | 2.83 | Todd Stottlemyre | 94 | SLN |
| +035+ | 2.69 | Woody Williams | 78.7 | TOR |
| +036+ | 2.68 | Pete Harnisch | 79.3 | CIN |
| +038+ | 2.6 | Orel Hershiser | 77.3 | SFN |
| +045+ | 2.44 | Roger Clemens | 78.3 | TOR |
| +046+ | 2.41 | Bartolo Colon | 84.3 | CLE |
| +047+ | 2.41 | Sean Bergman | 57.3 | HOU |
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