| Starter | Tm | Tier | Game |
|---|---|---|---|
| Andy Hawkins | NYA | -5.32 | 199008060_CLE_NYA |
| Walt Terrell | DET | -4.21 | 199008080_DET_TOR |
| Mike Bielecki | CHN | -3.06 | 199008070_SLN_CHN |
| Eric Show | SDN | -2.36 | 199008072_SDN_ATL |
| Storm Davis | KCA | -1.43 | 199008060_CHA_KCA |
Based on accumulated WAA for this season up to 1990-08-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.6 | Roger Clemens | 176.3 | BOS |
| +008+ | 5.47 | Dave Stewart | 181.3 | OAK |
| +007+ | 5.47 | Chuck Finley | 161 | ANA |
| +006+ | 5.47 | Frank Viola | 163.3 | NYN |
| +010+ | 4.58 | Danny Darwin | 93.3 | HOU |
| +012+ | 4.56 | John Tudor | 130.3 | SLN |
| +017+ | 4.2 | Ramon Martinez | 153.3 | LAN |
| +018+ | 4.18 | Bill Swift | 87.3 | SEA |
| +019+ | 4.08 | Ed Whitson | 156.7 | SDN |
| +028+ | 3.57 | Tom Browning | 169.7 | CIN |
| +031+ | 3.48 | Dennis Martinez | 172.7 | WAS |
| +035+ | 3.3 | Doug Drabek | 156.7 | PIT |
| +041+ | 2.97 | Mark Gardner | 127.7 | WAS |
| +051+ | 2.69 | Jack Armstrong | 143.7 | CIN |
| +053+ | 2.65 | Tom Candiotti | 146.3 | CLE |
| +054+ | 2.64 | Bob Welch | 159.3 | OAK |
| +057+ | 2.52 | Oil Can Boyd | 129.7 | WAS |
| +059+ | 2.44 | Dave Stieb | 133.7 | TOR |
| +060+ | 2.43 | Greg Hibbard | 138.3 | CHA |
| +063+ | 2.37 | Norm Charlton | 82 | CIN |
| +065+ | 2.35 | Bud Black | 156.7 | CLE |
| +072+ | 2.27 | Kevin Brown | 168 | TEX |
| +078+ | 2.17 | Ben McDonald | 37.7 | BAL |
| +081+ | 2.14 | Kirk McCaskill | 114.7 | ANA |
| +082+ | 2.13 | Zane Smith | 139.3 | WAS |
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