| Starter | Tm | Tier | Game |
|---|---|---|---|
| Greg Maddux | ATL | 7.22 | 199805110_ATL_CIN |
| Pedro Martinez | BOS | 5.85 | 199805090_BOS_KCA |
| Kevin Brown | SDN | 5.49 | 199805110_NYN_SDN |
| Andy Pettitte | NYA | 3.51 | 199805090_NYA_MIN |
| Jeff Fassero | SEA | 2.77 | 199805100_TOR_SEA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobby Witt | TEX | -4.18 | 199805110_BOS_TEX |
| Frank Castillo | DET | -3.53 | 199805090_DET_ANA |
| Jeff Suppan | ARI | -2.04 | 199805100_ARI_PHI |
| Sterling Hitchcock | SDN | -2.02 | 199805090_SDN_ATL |
| Matt Beech | PHI | -1.85 | 199805110_PHI_LAN |
Based on accumulated WAA for this season up to 1998-05-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.92 | Curt Schilling | 62 | PHI |
| +003+ | 3.63 | Greg Maddux | 65 | ATL |
| +004+ | 3.45 | Pedro Martinez | 57.3 | BOS |
| +005+ | 3.12 | Al Leiter | 45.3 | NYN |
| +010+ | 2.82 | Kevin Brown | 61 | SDN |
| +012+ | 2.78 | Francisco Cordova | 54.7 | PIT |
| +013+ | 2.69 | Andy Ashby | 57.7 | SDN |
| +015+ | 2.65 | Chuck Finley | 56 | ANA |
| +016+ | 2.62 | Mike Mussina | 44.7 | BAL |
| +019+ | 2.34 | Mike Hampton | 57 | HOU |
| +020+ | 2.23 | Todd Stottlemyre | 62.7 | SLN |
| +023+ | 2.17 | Roger Clemens | 41.3 | TOR |
| +025+ | 2.07 | Tom Glavine | 44 | ATL |
| +026+ | 2.06 | Jose Lima | 54.3 | HOU |
| +031+ | 1.89 | Brett Tomko | 50.3 | CIN |
| +032+ | 1.88 | Rick Helling | 49.7 | TEX |
| +035+ | 1.81 | Jimmy Key | 49 | BAL |
| +037+ | 1.79 | Hideki Irabu | 25.3 | NYA |
| +038+ | 1.78 | Pete Harnisch | 55.3 | CIN |
| +040+ | 1.75 | Jeff Fassero | 40.7 | SEA |
| +042+ | 1.71 | Rolando Arrojo | 54.3 | TBA |
| +046+ | 1.64 | Ramon Martinez | 56 | LAN |
| +045+ | 1.64 | Masato Yoshii | 37 | NYN |
| +049+ | 1.6 | Aaron Sele | 51 | TEX |
| +058+ | 1.56 | Brian Meadows | 51.3 | MIA |
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