| Starter | Tm | Tier | Game |
|---|---|---|---|
| Andy Hawkins | OAK | -6.31 | 199106152_OAK_MIL |
| Walt Terrell | DET | -2.48 | 199106130_DET_SEA |
| Jack Morris | MIN | -2.01 | 199106140_MIN_CLE |
| Tim Leary | NYA | -1.4 | 199106150_NYA_TEX |
| Randy Johnson | SEA | -1.34 | 199106150_DET_SEA |
Based on accumulated WAA for this season up to 1991-06-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.31 | Scott Erickson | 101.3 | MIN |
| +002+ | 4.35 | Dennis Martinez | 102.7 | WAS |
| +003+ | 4.07 | Roger Clemens | 102 | BOS |
| +005+ | 3.86 | Greg Swindell | 101.7 | CLE |
| +006+ | 3.8 | Tom Candiotti | 96.3 | CLE |
| +009+ | 3.5 | Pete Harnisch | 88 | HOU |
| +011+ | 3.21 | Tom Glavine | 95 | ATL |
| +013+ | 3.08 | Jimmy Key | 87.7 | TOR |
| +014+ | 3.07 | Mike Morgan | 87 | LAN |
| +018+ | 2.76 | Dennis Rasmussen | 38 | SDN |
| +020+ | 2.72 | Tommy Greene | 71.7 | PHI |
| +022+ | 2.69 | Frank Viola | 95.3 | NYN |
| +023+ | 2.63 | Dave Wells | 80.3 | TOR |
| +025+ | 2.6 | David Cone | 92 | NYN |
| +027+ | 2.53 | Tim Belcher | 78.7 | LAN |
| +028+ | 2.48 | Ramon Martinez | 92 | LAN |
| +030+ | 2.35 | Jose Rijo | 95.7 | CIN |
| +032+ | 2.19 | Zane Smith | 87.3 | PIT |
| +039+ | 2.1 | Doug Drabek | 86.3 | PIT |
| +038+ | 2.1 | Charlie Leibrandt | 87.3 | ATL |
| +041+ | 2.08 | Gerald Alexander | 43.3 | TEX |
| +046+ | 2 | Jose DeLeon | 76 | SLN |
| +048+ | 1.98 | Bruce Hurst | 95.3 | SDN |
| +051+ | 1.88 | Chris Bosio | 83.7 | MIL |
| +054+ | 1.86 | Bret Saberhagen | 91.3 | KCA |
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