| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 13.78 | 199008090_BOS_ANA |
| Dave Stewart | OAK | 6.82 | 199008100_NYA_OAK |
| Chuck Finley | ANA | 6.1 | 199008110_BAL_ANA |
| John Tudor | SLN | 5.23 | 199008100_SLN_PIT |
| Danny Darwin | HOU | 4.32 | 199008110_SDN_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jeff Robinson | DET | -4.51 | 199008090_DET_TOR |
| Andy Hawkins | NYA | -4.42 | 199008110_NYA_OAK |
| Bert Blyleven | ANA | -3.6 | 199008100_BAL_ANA |
| Mike Bielecki | CHN | -3.4 | 199008110_CHN_NYN |
| David West | MIN | -2.89 | 199008100_MIN_TOR |
Based on accumulated WAA for this season up to 1990-08-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.71 | Roger Clemens | 183 | BOS |
| +005+ | 6.25 | Dave Stewart | 190 | OAK |
| +007+ | 5.88 | Chuck Finley | 168 | ANA |
| +008+ | 5.47 | Frank Viola | 163.3 | NYN |
| +009+ | 4.82 | Ed Whitson | 165 | SDN |
| +010+ | 4.74 | John Tudor | 132.3 | SLN |
| +012+ | 4.59 | Bill Swift | 94.7 | SEA |
| +013+ | 4.58 | Danny Darwin | 100.3 | HOU |
| +018+ | 4.3 | Ramon Martinez | 161.3 | LAN |
| +028+ | 3.56 | Tom Browning | 169.7 | CIN |
| +033+ | 3.41 | Dennis Martinez | 172.7 | WAS |
| +034+ | 3.28 | Doug Drabek | 156.7 | PIT |
| +036+ | 3.18 | Norm Charlton | 91 | CIN |
| +037+ | 3.16 | Mark Gardner | 132.7 | WAS |
| +051+ | 2.8 | Oil Can Boyd | 135.7 | WAS |
| +056+ | 2.64 | Tom Candiotti | 146.3 | CLE |
| +057+ | 2.64 | Bob Welch | 159.3 | OAK |
| +061+ | 2.5 | Dave Stieb | 141.3 | TOR |
| +065+ | 2.44 | Greg Hibbard | 138.3 | CHA |
| +078+ | 2.17 | Ben McDonald | 37.7 | BAL |
| +080+ | 2.13 | Kirk McCaskill | 114.7 | ANA |
| +087+ | 2.02 | Kevin Appier | 113.3 | KCA |
| +093+ | 1.93 | John Burkett | 141.3 | SFN |
| +096+ | 1.89 | Mike Morgan | 155.7 | LAN |
| +106+ | 1.75 | Zane Smith | 140.3 | TOT |
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