| Starter | Tm | Tier | Game |
|---|---|---|---|
| Kevin Brown | SDN | 7.02 | 199806050_SDN_TEX |
| Pedro Martinez | BOS | 5.44 | 199806050_NYN_BOS |
| Denny Neagle | ATL | 4.58 | 199806050_ATL_BAL |
| Al Leiter | NYN | 3.97 | 199806050_NYN_BOS |
| Mike Hampton | HOU | 3.89 | 199806040_HOU_SDN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Castillo | DET | -6.62 | 199806050_DET_MIL |
| John Burkett | TEX | -2.58 | 199806060_SDN_TEX |
| Glendon Rusch | KCA | -1.53 | 199806040_CHA_KCA |
| Dennis Springer | TBA | -1.49 | 199806040_TBA_NYA |
| Jaime Navarro | CHA | -1.36 | 199806040_CHA_KCA |
Based on accumulated WAA for this season up to 1998-06-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.92 | Greg Maddux | 97.3 | ATL |
| +004+ | 4.89 | Chuck Finley | 93.3 | ANA |
| +005+ | 4.85 | Andy Ashby | 97.7 | SDN |
| +006+ | 4.68 | Francisco Cordova | 89 | PIT |
| +007+ | 4.63 | Al Leiter | 73.3 | NYN |
| +009+ | 4.47 | Tom Glavine | 81.3 | ATL |
| +011+ | 4.28 | Hideki Irabu | 62 | NYA |
| +012+ | 4 | Curt Schilling | 99.7 | PHI |
| +014+ | 3.68 | Ramon Martinez | 90 | LAN |
| +016+ | 3.67 | Mike Hampton | 92 | HOU |
| +017+ | 3.65 | Rick Reed | 76 | NYN |
| +019+ | 3.41 | Kevin Brown | 96 | SDN |
| +022+ | 3.21 | Carlos Perez | 97.7 | WAS |
| +023+ | 3.16 | Pete Harnisch | 86.3 | CIN |
| +024+ | 3.07 | Jose Lima | 90.3 | HOU |
| +025+ | 3.06 | Todd Stottlemyre | 101.7 | SLN |
| +026+ | 3.05 | Masato Yoshii | 60 | NYN |
| +027+ | 3.02 | Denny Neagle | 91.7 | ATL |
| +032+ | 2.86 | Shane Reynolds | 90.3 | HOU |
| +033+ | 2.86 | Brad Radke | 83.7 | MIN |
| +035+ | 2.8 | Pedro Martinez | 89.7 | BOS |
| +037+ | 2.69 | Orel Hershiser | 83.3 | SFN |
| +040+ | 2.65 | Woody Williams | 78.7 | TOR |
| +049+ | 2.41 | Roger Clemens | 78.3 | TOR |
| +051+ | 2.4 | Omar Olivares | 65.3 | ANA |
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