| Starter | Tm | Tier | Game |
|---|---|---|---|
| Curt Schilling | PHI | 7.96 | 199805020_HOU_PHI |
| Tom Glavine | ATL | 7.27 | 199805030_SFN_ATL |
| Pedro Martinez | BOS | 5.31 | 199805030_TEX_BOS |
| Andy Pettitte | NYA | 4.47 | 199805020_NYA_KCA |
| Roger Clemens | TOR | 3.74 | 199805020_TOR_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jamey Wright | COL | -3.58 | 199805020_COL_NYN |
| Jeff Suppan | ARI | -2.71 | 199805040_ARI_NYN |
| Frank Castillo | DET | -2.32 | 199805030_DET_SEA |
| Sterling Hitchcock | SDN | -1.95 | 199805040_SDN_MIL |
| Allen Watson | ANA | -1.77 | 199805040_CHA_ANA |
Based on accumulated WAA for this season up to 1998-05-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.48 | Curt Schilling | 55 | PHI |
| +003+ | 3.17 | Chuck Finley | 50.3 | ANA |
| +005+ | 2.94 | Pedro Martinez | 50.3 | BOS |
| +009+ | 2.73 | Al Leiter | 37.3 | NYN |
| +011+ | 2.55 | Greg Maddux | 52 | ATL |
| +013+ | 2.26 | Andy Ashby | 49.7 | SDN |
| +014+ | 2.24 | Francisco Cordova | 40.3 | PIT |
| +016+ | 2.12 | Tom Glavine | 38 | ATL |
| +018+ | 1.98 | Brett Tomko | 44.3 | CIN |
| +019+ | 1.92 | Jamie Moyer | 49.7 | SEA |
| +020+ | 1.9 | Mike Hampton | 50.7 | HOU |
| +021+ | 1.87 | Rick Helling | 43 | TEX |
| +022+ | 1.87 | Aaron Sele | 43 | TEX |
| +023+ | 1.84 | Ken Hill | 39.7 | ANA |
| +029+ | 1.77 | Jose Lima | 41.3 | HOU |
| +035+ | 1.69 | Andy Pettitte | 46.3 | NYA |
| +036+ | 1.68 | Mike Mussina | 35.7 | BAL |
| +037+ | 1.67 | Cal Eldred | 41.7 | MIL |
| +040+ | 1.64 | Tom Candiotti | 48 | OAK |
| +042+ | 1.62 | Woody Williams | 38 | TOR |
| +048+ | 1.51 | Dustin Hermanson | 38.7 | WAS |
| +049+ | 1.5 | Brian Meadows | 38.3 | MIA |
| +051+ | 1.47 | Kevin Brown | 46 | SDN |
| +052+ | 1.47 | Kenny Rogers | 48.3 | OAK |
| +053+ | 1.45 | Roger Clemens | 34.3 | TOR |
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