| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Glavine | ATL | 7.27 | 199805030_SFN_ATL |
| Pedro Martinez | BOS | 5.31 | 199805030_TEX_BOS |
| Al Leiter | NYN | 2.46 | 199805040_ARI_NYN |
| Ismael Valdez | LAN | 2.44 | 199805050_LAN_ATL |
| Jeff Fassero | SEA | 2.29 | 199805050_CHA_SEA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| 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 |
| Kent Mercker | SLN | -1.17 | 199805050_SLN_PIT |
Based on accumulated WAA for this season up to 1998-05-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.49 | Curt Schilling | 55 | PHI |
| +002+ | 3.18 | Chuck Finley | 50.3 | ANA |
| +005+ | 2.95 | Pedro Martinez | 50.3 | BOS |
| +006+ | 2.74 | Al Leiter | 37.3 | NYN |
| +011+ | 2.56 | Greg Maddux | 52 | ATL |
| +012+ | 2.49 | Francisco Cordova | 46.7 | PIT |
| +015+ | 2.28 | Andy Ashby | 49.7 | SDN |
| +017+ | 2.13 | Tom Glavine | 38 | ATL |
| +020+ | 1.99 | Brett Tomko | 44.3 | CIN |
| +021+ | 1.93 | Jamie Moyer | 49.7 | SEA |
| +022+ | 1.92 | Brian Meadows | 46.3 | MIA |
| +023+ | 1.91 | Mike Hampton | 50.7 | HOU |
| +027+ | 1.88 | Rick Helling | 43 | TEX |
| +026+ | 1.88 | Aaron Sele | 43 | TEX |
| +032+ | 1.7 | Andy Pettitte | 46.3 | NYA |
| +035+ | 1.69 | Mike Mussina | 35.7 | BAL |
| +038+ | 1.68 | Pete Harnisch | 47.3 | CIN |
| +037+ | 1.68 | Cal Eldred | 41.7 | MIL |
| +040+ | 1.65 | Tom Candiotti | 48 | OAK |
| +044+ | 1.63 | Woody Williams | 38 | TOR |
| +048+ | 1.57 | Jose Lima | 47.3 | HOU |
| +051+ | 1.52 | Dustin Hermanson | 38.7 | WAS |
| +052+ | 1.5 | Denny Neagle | 50 | ATL |
| +055+ | 1.49 | Kevin Brown | 46 | SDN |
| +056+ | 1.48 | Kenny Rogers | 48.3 | OAK |
_