| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dennis Martinez | WAS | 6.44 | 199105260_WAS_CHN |
| Frank Viola | NYN | 3.92 | 199105270_NYN_CHN |
| Bruce Hurst | SDN | 3.82 | 199105270_ATL_SDN |
| Bob Welch | OAK | 3.65 | 199105250_CHA_OAK |
| Doug Drabek | PIT | 3.47 | 199105270_PIT_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Melido Perez | CHA | -3.9 | 199105250_CHA_OAK |
| Kevin Gross | LAN | -3.35 | 199105250_LAN_CIN |
| Walt Terrell | DET | -3.33 | 199105250_BOS_DET |
| Bill Wegman | MIL | -1.32 | 199105260_CLE_MIL |
| Dennis Rasmussen | SDN | -1.31 | 199105250_SDN_HOU |
Based on accumulated WAA for this season up to 1991-05-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.28 | Scott Erickson | 69.3 | MIN |
| +004+ | 3.08 | Tom Gordon | 52.3 | KCA |
| +005+ | 3.01 | Mike Morgan | 67.3 | LAN |
| +006+ | 2.97 | Dennis Martinez | 74 | WAS |
| +008+ | 2.79 | Ramon Martinez | 65 | LAN |
| +012+ | 2.53 | Frank Viola | 73 | NYN |
| +013+ | 2.43 | Tom Glavine | 63.3 | ATL |
| +014+ | 2.42 | Tom Candiotti | 72 | CLE |
| +015+ | 2.32 | Jimmy Key | 60.7 | TOR |
| +017+ | 2.26 | Roger Clemens | 69 | BOS |
| +024+ | 1.89 | Zane Smith | 61 | PIT |
| +026+ | 1.82 | Jimmy Jones | 58 | HOU |
| +031+ | 1.73 | Jose DeLeon | 51.7 | SLN |
| +032+ | 1.73 | Greg Swindell | 73.7 | CLE |
| +040+ | 1.62 | Chris Bosio | 68.3 | MIL |
| +041+ | 1.61 | Pete Harnisch | 58 | HOU |
| +044+ | 1.57 | Bret Saberhagen | 70.3 | KCA |
| +054+ | 1.46 | Bob Scanlan | 28.3 | CHN |
| +055+ | 1.45 | Randy Tomlin | 35 | PIT |
| +058+ | 1.43 | Jose Rijo | 65 | CIN |
| +066+ | 1.3 | Tim Belcher | 51 | LAN |
| XXXXX | 1.24 | Todd Stottlemyre | 58 | TOR |
| XXXXX | 1.19 | Tommy Greene | 42.7 | PHI |
| XXXXX | 1.18 | Tom Browning | 71.7 | CIN |
| XXXXX | 1.17 | Bob Welch | 73.3 | OAK |
_