| Starter | Tm | Tier | Game |
|---|---|---|---|
| Curt Schilling | PHI | 9.02 | 199805280_PHI_CHN |
| Greg Maddux | ATL | 8.32 | 199805270_WAS_ATL |
| Kevin Brown | SDN | 6.14 | 199805260_SDN_ARI |
| Jeff Fassero | SEA | 3.66 | 199805260_BAL_SEA |
| Ramon Martinez | LAN | 2.59 | 199805280_CIN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobby Witt | TEX | -5.02 | 199805280_TEX_BAL |
| Jeff Suppan | ARI | -1.9 | 199805260_SDN_ARI |
| Jamey Wright | COL | -1.9 | 199805280_COL_SLN |
| Javier Vazquez | WAS | -1.61 | 199805270_WAS_ATL |
| Kent Mercker | SLN | -1.55 | 199805280_COL_SLN |
Based on accumulated WAA for this season up to 1998-05-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.4 | Greg Maddux | 88.3 | ATL |
| +004+ | 4.1 | Al Leiter | 60.3 | NYN |
| +005+ | 3.94 | Kevin Brown | 83 | SDN |
| +006+ | 3.92 | Curt Schilling | 90.7 | PHI |
| +007+ | 3.9 | Pedro Martinez | 80 | BOS |
| +008+ | 3.81 | Tom Glavine | 67 | ATL |
| +010+ | 3.73 | Mike Hampton | 78.7 | HOU |
| +011+ | 3.72 | Francisco Cordova | 75 | PIT |
| +012+ | 3.66 | Hideki Irabu | 47.7 | NYA |
| +013+ | 3.62 | Chuck Finley | 77 | ANA |
| +014+ | 3.6 | Andy Ashby | 79.7 | SDN |
| +017+ | 3.22 | Ramon Martinez | 83 | LAN |
| +016+ | 3.22 | Aaron Sele | 73.7 | TEX |
| +019+ | 3.07 | Jamie Moyer | 84.7 | SEA |
| +022+ | 2.93 | Denny Neagle | 76.7 | ATL |
| +024+ | 2.83 | Woody Williams | 66 | TOR |
| +025+ | 2.81 | Masato Yoshii | 58 | NYN |
| +028+ | 2.73 | Todd Stottlemyre | 88 | SLN |
| +030+ | 2.64 | Shane Reynolds | 82.3 | HOU |
| +035+ | 2.48 | Jose Lima | 74.7 | HOU |
| +036+ | 2.45 | Rick Reed | 62.7 | NYN |
| +047+ | 2.25 | Brad Radke | 69.3 | MIN |
| +048+ | 2.15 | Pete Harnisch | 72.3 | CIN |
| +058+ | 1.96 | Orel Hershiser | 71.3 | SFN |
| +061+ | 1.9 | Bartolo Colon | 67.7 | CLE |
_