| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dennis Martinez | WAS | 4.91 | 199105210_PHI_WAS |
| Ramon Martinez | LAN | 4.69 | 199105190_NYN_LAN |
| Bret Saberhagen | KCA | 4.39 | 199105200_SEA_KCA |
| Zane Smith | PIT | 3.97 | 199105190_PIT_ATL |
| Ed Whitson | SDN | 3.08 | 199105200_SDN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Morris | MIN | -4.71 | 199105190_MIN_DET |
| Melido Perez | CHA | -3.32 | 199105200_CHA_ANA |
| Kevin Gross | LAN | -3.2 | 199105200_LAN_HOU |
| Walt Terrell | DET | -2.56 | 199105200_BAL_DET |
| Jamie Moyer | SLN | -1.43 | 199105210_SLN_PIT |
Based on accumulated WAA for this season up to 1991-05-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.49 | Scott Erickson | 62.3 | MIN |
| +003+ | 3.23 | Tom Candiotti | 61 | CLE |
| +004+ | 3.12 | Dennis Martinez | 67.7 | WAS |
| +005+ | 2.74 | Ramon Martinez | 58.3 | LAN |
| +006+ | 2.47 | Mike Morgan | 53 | LAN |
| +007+ | 2.42 | Tom Gordon | 43.3 | KCA |
| +009+ | 2.34 | Roger Clemens | 62 | BOS |
| +010+ | 2.3 | Frank Viola | 59.3 | NYN |
| +014+ | 2.13 | Greg Swindell | 67.7 | CLE |
| +016+ | 2.04 | Tom Glavine | 54.3 | ATL |
| +020+ | 1.84 | Jimmy Key | 54 | TOR |
| +023+ | 1.66 | Chris Bosio | 61.7 | MIL |
| +028+ | 1.53 | Terry Mulholland | 67 | PHI |
| +029+ | 1.51 | Dave Wells | 52.7 | TOR |
| +035+ | 1.45 | Zane Smith | 54 | PIT |
| +040+ | 1.41 | Jose DeLeon | 46.3 | SLN |
| +041+ | 1.4 | Charlie Leibrandt | 59 | ATL |
| +052+ | 1.27 | Jimmy Jones | 50 | HOU |
| +054+ | 1.26 | Dan Petry | 35.7 | DET |
| +053+ | 1.26 | Dwight Gooden | 66.7 | NYN |
| XXXXX | 1.18 | Brian Holman | 56.3 | SEA |
| XXXXX | 1.15 | Todd Stottlemyre | 51 | TOR |
| XXXXX | 1.14 | Jose Rijo | 53 | CIN |
| XXXXX | 1.11 | Randy Tomlin | 29 | PIT |
| XXXXX | 1.1 | Jim Acker | 29 | TOR |
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