| Starter | Tm | Tier | Game |
|---|---|---|---|
| Doug Drabek | PIT | 6.42 | 199106220_PIT_LAN |
| Tom Candiotti | CLE | 5 | 199106230_CLE_TOR |
| Bruce Hurst | SDN | 4.7 | 199106230_SDN_SLN |
| Frank Viola | NYN | 3.93 | 199106210_NYN_ATL |
| Mike Morgan | LAN | 3.64 | 199106220_PIT_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Alex Fernandez | CHA | -3.82 | 199106220_TEX_CHA |
| Kevin Ritz | DET | -1.62 | 199106220_ANA_DET |
| Jose Mesa | BAL | -1.28 | 199106232_BAL_KCA |
| Randy Johnson | SEA | -1.02 | 199106210_SEA_MIL |
| Don August | MIL | -1 | 199106220_SEA_MIL |
Based on accumulated WAA for this season up to 1991-06-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.88 | Scott Erickson | 107.3 | MIN |
| +002+ | 4.93 | Dennis Martinez | 110.7 | WAS |
| +003+ | 4.56 | Roger Clemens | 109.7 | BOS |
| +005+ | 4.11 | Tom Candiotti | 108.3 | CLE |
| +006+ | 3.99 | Tom Glavine | 103 | ATL |
| +011+ | 3.57 | Mike Morgan | 104.7 | LAN |
| +012+ | 3.54 | Pete Harnisch | 94 | HOU |
| +016+ | 3.21 | Tim Belcher | 93.7 | LAN |
| +018+ | 3.19 | Jimmy Key | 95.7 | TOR |
| +017+ | 3.19 | Greg Swindell | 116.7 | CLE |
| +020+ | 2.91 | Jose Rijo | 101.7 | CIN |
| +021+ | 2.83 | Tommy Greene | 87 | PHI |
| +026+ | 2.67 | Dennis Rasmussen | 44 | SDN |
| +028+ | 2.64 | Ramon Martinez | 99 | LAN |
| +032+ | 2.48 | Jose DeLeon | 83.3 | SLN |
| +038+ | 2.39 | Bruce Hurst | 111.3 | SDN |
| +039+ | 2.39 | Doug Drabek | 100.3 | PIT |
| +043+ | 2.32 | Frank Viola | 109.3 | NYN |
| +047+ | 2.14 | Charlie Leibrandt | 98.7 | ATL |
| +049+ | 2.1 | David Cone | 97.7 | NYN |
| +053+ | 2.03 | Bob Tewksbury | 76 | SLN |
| +054+ | 2.01 | Todd Stottlemyre | 94.3 | TOR |
| +056+ | 2 | Zane Smith | 98.3 | PIT |
| +059+ | 1.97 | Bob Welch | 110.7 | OAK |
| +062+ | 1.91 | Nolan Ryan | 83 | TEX |
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