| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Whitson | SDN | 4.05 | 199105100_WAS_SDN |
| Dennis Martinez | WAS | 3.93 | 199105110_WAS_SDN |
| Doug Drabek | PIT | 3.42 | 199105110_ATL_PIT |
| Bob Welch | OAK | 3.02 | 199105100_OAK_NYA |
| Frank Viola | NYN | 2.94 | 199105120_NYN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walt Terrell | DET | -2.69 | 199105100_DET_MIN |
| Jim Abbott | ANA | -2.41 | 199105110_ANA_CLE |
| Alex Fernandez | CHA | -2.23 | 199105100_CHA_TOR |
| Randy Johnson | SEA | -1.15 | 199105120_BAL_SEA |
| Jimmy Jones | HOU | -0.72 | 199105100_SLN_HOU |
Based on accumulated WAA for this season up to 1991-05-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.46 | Roger Clemens | 49 | BOS |
| +002+ | 3.35 | Tom Candiotti | 53 | CLE |
| +003+ | 3.12 | Scott Erickson | 56 | MIN |
| +004+ | 2.65 | Mike Morgan | 45.7 | LAN |
| +006+ | 2.42 | Dennis Martinez | 52.7 | WAS |
| +007+ | 2.38 | Ramon Martinez | 45 | LAN |
| +009+ | 2.3 | Pete Harnisch | 40.7 | HOU |
| +008+ | 2.3 | Tom Gordon | 35 | KCA |
| +015+ | 1.76 | Zane Smith | 43.7 | PIT |
| +020+ | 1.65 | Frank Viola | 50.3 | NYN |
| +025+ | 1.49 | Jose DeLeon | 40.3 | SLN |
| +027+ | 1.41 | Greg Swindell | 50 | CLE |
| +028+ | 1.4 | Dan Petry | 23 | DET |
| +029+ | 1.39 | Jimmy Key | 47 | TOR |
| +036+ | 1.31 | Charles Nagy | 44 | CLE |
| +035+ | 1.31 | Tom Glavine | 39.3 | ATL |
| +040+ | 1.26 | Vicente Palacios | 35.7 | PIT |
| XXXXX | 1.22 | Tom Bolton | 30.7 | BOS |
| XXXXX | 1.22 | Bret Saberhagen | 46.3 | KCA |
| XXXXX | 1.21 | Kevin Tapani | 44 | MIN |
| XXXXX | 1.2 | Jose Rijo | 47 | CIN |
| XXXXX | 1.17 | Jose Mesa | 47.7 | BAL |
| XXXXX | 1.11 | Dwight Gooden | 51.3 | NYN |
| XXXXX | 0.92 | Randy Tomlin | 27 | PIT |
| XXXXX | 0.91 | Steve Avery | 42 | ATL |
_