| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Viola | NYN | 7.78 | 199008020_NYN_WAS |
| Dave Stewart | OAK | 4.3 | 199008010_SEA_OAK |
| Dennis Martinez | WAS | 4.19 | 199008020_NYN_WAS |
| Tom Browning | CIN | 4.14 | 199008020_SDN_CIN |
| Doug Drabek | PIT | 3.88 | 199008030_PIT_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Andy Hawkins | NYA | -4.73 | 199008010_DET_NYA |
| Walt Terrell | DET | -4.42 | 199008020_DET_NYA |
| Bruce Ruffin | PHI | -1.34 | 199008030_PIT_PHI |
| Scott Scudder | CIN | -0.81 | 199008010_CIN_SDN |
| Jimmy Key | TOR | -0.59 | 199008020_TOR_TEX |
Based on accumulated WAA for this season up to 1990-08-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.06 | Roger Clemens | 167.7 | BOS |
| +005+ | 6 | Frank Viola | 158 | NYN |
| +006+ | 5.67 | Chuck Finley | 153 | ANA |
| +008+ | 4.88 | Dave Stewart | 174.3 | OAK |
| +012+ | 4.55 | Danny Darwin | 88.3 | HOU |
| +015+ | 4.19 | Ramon Martinez | 153.3 | LAN |
| +016+ | 4.02 | Doug Drabek | 150 | PIT |
| +020+ | 3.89 | John Tudor | 122.3 | SLN |
| +022+ | 3.88 | Ed Whitson | 149.7 | SDN |
| +023+ | 3.85 | Bill Swift | 83.7 | SEA |
| +032+ | 3.25 | Greg Hibbard | 136 | CHA |
| +036+ | 3.1 | Dennis Martinez | 163.7 | WAS |
| +039+ | 2.98 | Mark Gardner | 127.7 | WAS |
| +041+ | 2.88 | Tom Browning | 161.7 | CIN |
| +042+ | 2.84 | Tom Candiotti | 139.3 | CLE |
| +046+ | 2.72 | Jack Armstrong | 143.7 | CIN |
| +047+ | 2.71 | Dave Stieb | 127.7 | TOR |
| +054+ | 2.61 | Kevin Brown | 160.3 | TEX |
| +058+ | 2.53 | Oil Can Boyd | 122.7 | WAS |
| +062+ | 2.47 | Bob Welch | 152.3 | OAK |
| +080+ | 2.08 | Kevin Appier | 107 | KCA |
| +085+ | 2.03 | Greg Harris | 120 | BOS |
| +086+ | 2.02 | Zane Smith | 133.3 | WAS |
| +087+ | 2.01 | Kirk McCaskill | 108 | ANA |
| +090+ | 1.93 | Norm Charlton | 74.7 | CIN |
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