| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Whitson | SDN | 3.65 | 199104090_SFN_SDN |
| Chuck Finley | ANA | 3.46 | 199104090_ANA_SEA |
| Danny Darwin | BOS | 3.1 | 199104110_CLE_BOS |
| Bob Welch | OAK | 1.78 | 199104100_MIN_OAK |
| Jose Rijo | CIN | 1.22 | 199104100_HOU_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walt Terrell | DET | -5.13 | 199104100_NYA_DET |
| Jack Morris | MIN | -4.5 | 199104090_MIN_OAK |
| Pete Harnisch | HOU | -2.4 | 199104110_HOU_CIN |
| Ken Hill | SLN | -1.95 | 199104110_SLN_CHN |
| Todd Stottlemyre | TOR | -1.62 | 199104100_BOS_TOR |
Based on accumulated WAA for this season up to 1991-04-11.
| Rank | WAA | Name | IP | Tm |
|---|
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