| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Viola | NYN | 7.78 | 199008020_NYN_WAS |
| Chuck Finley | ANA | 6.04 | 199007310_ANA_MIN |
| Dave Stewart | OAK | 4.3 | 199008010_SEA_OAK |
| John Tudor | SLN | 4.26 | 199007310_SLN_PHI |
| Dennis Martinez | WAS | 4.19 | 199008020_NYN_WAS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Andy Hawkins | NYA | -4.73 | 199008010_DET_NYA |
| Walt Terrell | DET | -4.42 | 199008020_DET_NYA |
| Eric Show | SDN | -2.32 | 199007310_ATL_SDN |
| Allan Anderson | MIN | -1.07 | 199007310_ANA_MIN |
| Scott Scudder | CIN | -0.81 | 199008010_CIN_SDN |
Based on accumulated WAA for this season up to 1990-08-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.04 | Roger Clemens | 167.7 | BOS |
| +005+ | 5.98 | Frank Viola | 158 | NYN |
| +007+ | 5.65 | Chuck Finley | 153 | ANA |
| +009+ | 4.86 | Dave Stewart | 174.3 | OAK |
| +014+ | 4.54 | Danny Darwin | 88.3 | HOU |
| +013+ | 4.54 | Mark Gardner | 126.7 | WAS |
| +020+ | 3.88 | John Tudor | 122.3 | SLN |
| +021+ | 3.87 | Bill Swift | 83.7 | SEA |
| +022+ | 3.86 | Ed Whitson | 149.7 | SDN |
| +023+ | 3.76 | Ramon Martinez | 144.3 | LAN |
| +035+ | 3.19 | Doug Drabek | 141 | PIT |
| +039+ | 3.06 | Dennis Martinez | 163.7 | WAS |
| +041+ | 2.86 | Tom Browning | 161.7 | CIN |
| +042+ | 2.84 | Greg Hibbard | 127 | CHA |
| +045+ | 2.68 | Dave Stieb | 127.7 | TOR |
| +049+ | 2.59 | Kevin Brown | 160.3 | TEX |
| +053+ | 2.5 | Oil Can Boyd | 122.7 | WAS |
| +054+ | 2.49 | Jack Armstrong | 136.7 | CIN |
| +058+ | 2.45 | Bob Welch | 152.3 | OAK |
| +064+ | 2.34 | Greg Harris | 114.3 | BOS |
| +066+ | 2.3 | Bud Black | 149.7 | CLE |
| +075+ | 2.11 | Dave Wells | 105 | TOR |
| +079+ | 2.06 | Kevin Appier | 107 | KCA |
| +084+ | 2 | Kirk McCaskill | 108 | ANA |
| +085+ | 1.99 | Zane Smith | 133.3 | WAS |
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