| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walt Terrell | DET | -3.06 | 199106080_DET_ANA |
| Jack Morris | MIN | -2.89 | 199106090_CLE_MIN |
| Jeff Robinson | BAL | -1.22 | 199106080_TOR_BAL |
| Tim Leary | NYA | -1.22 | 199106090_TEX_NYA |
| Randy Johnson | SEA | -1.2 | 199106100_BOS_SEA |
Based on accumulated WAA for this season up to 1991-06-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.14 | Scott Erickson | 94.3 | MIN |
| +004+ | 3.69 | Roger Clemens | 93 | BOS |
| +005+ | 3.57 | Dennis Martinez | 93.7 | WAS |
| +007+ | 3.29 | Tom Candiotti | 87.3 | CLE |
| +008+ | 3.26 | Greg Swindell | 91.7 | CLE |
| +009+ | 3.21 | Pete Harnisch | 82 | HOU |
| +012+ | 2.98 | Tom Glavine | 88 | ATL |
| +013+ | 2.97 | Mike Morgan | 81 | LAN |
| +017+ | 2.55 | Tommy Greene | 64.7 | PHI |
| +022+ | 2.49 | Bret Saberhagen | 86.3 | KCA |
| +021+ | 2.49 | Ramon Martinez | 85 | LAN |
| +024+ | 2.47 | Dennis Rasmussen | 30 | SDN |
| +026+ | 2.33 | Jimmy Key | 78.7 | TOR |
| +030+ | 2.21 | Tim Belcher | 72.7 | LAN |
| +031+ | 2.18 | Frank Viola | 87 | NYN |
| +033+ | 2.17 | Dave Wells | 72.3 | TOR |
| +035+ | 2.12 | David Cone | 84 | NYN |
| +043+ | 1.89 | Zane Smith | 79.3 | PIT |
| +045+ | 1.88 | Charlie Leibrandt | 80.3 | ATL |
| +044+ | 1.88 | Chris Bosio | 83.7 | MIL |
| +050+ | 1.8 | Jose Rijo | 87 | CIN |
| +056+ | 1.72 | Bruce Hurst | 87.3 | SDN |
| +061+ | 1.68 | Jose DeLeon | 70 | SLN |
| +060+ | 1.68 | Doug Drabek | 79.3 | PIT |
| +062+ | 1.66 | Greg Maddux | 89.3 | CHN |
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