| Starter | Tm | Tier | Game |
|---|---|---|---|
| Andy Hawkins | OAK | -5.16 | 199106010_OAK_CHA |
| Frank Tanana | DET | -1.83 | 199106020_DET_CLE |
| Allan Anderson | MIN | -1.79 | 199106010_MIN_KCA |
| Alex Fernandez | CHA | -1.69 | 199106010_OAK_CHA |
| Bill Wegman | MIL | -1.41 | 199106010_MIL_NYA |
Based on accumulated WAA for this season up to 1991-06-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.62 | Scott Erickson | 85.7 | MIN |
| +004+ | 3.15 | Roger Clemens | 85 | BOS |
| +006+ | 3.12 | Tom Glavine | 72.3 | ATL |
| +007+ | 3.03 | Tom Candiotti | 80 | CLE |
| +008+ | 2.81 | Mike Morgan | 74 | LAN |
| +009+ | 2.76 | Zane Smith | 70 | PIT |
| +011+ | 2.64 | Greg Swindell | 82.7 | CLE |
| +013+ | 2.58 | Dennis Martinez | 78 | WAS |
| +016+ | 2.52 | Tom Gordon | 61.7 | KCA |
| +017+ | 2.51 | Frank Viola | 79 | NYN |
| +020+ | 2.29 | Jimmy Key | 66.7 | TOR |
| +021+ | 2.25 | Bret Saberhagen | 79.3 | KCA |
| +022+ | 2.19 | Chris Bosio | 73.7 | MIL |
| +025+ | 2.15 | Pete Harnisch | 65 | HOU |
| +026+ | 2.14 | Tommy Greene | 57.7 | PHI |
| +027+ | 2.13 | Tim Belcher | 66.7 | LAN |
| +031+ | 2.02 | Ramon Martinez | 70 | LAN |
| +037+ | 1.86 | Charlie Leibrandt | 72.3 | ATL |
| +039+ | 1.81 | Gerald Alexander | 32.3 | TEX |
| +043+ | 1.76 | Jimmy Jones | 65.3 | HOU |
| +064+ | 1.44 | Dave Wells | 64.3 | TOR |
| +068+ | 1.39 | Greg Maddux | 81.3 | CHN |
| +069+ | 1.37 | Bruce Hurst | 81.3 | SDN |
| XXXXX | 1.23 | Jose Rijo | 71 | CIN |
| XXXXX | 1.19 | John Smiley | 59.7 | PIT |
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