| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 8.43 | 199105080_MIN_BOS |
| Chuck Finley | ANA | 5.63 | 199105070_NYA_ANA |
| Dennis Martinez | WAS | 4.56 | 199105060_SFN_WAS |
| Bruce Hurst | SDN | 3.94 | 199105070_PHI_SDN |
| Ramon Martinez | LAN | 3.28 | 199105080_LAN_NYN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Morris | MIN | -5.06 | 199105080_MIN_BOS |
| Andy Hawkins | NYA | -4.73 | 199105070_NYA_ANA |
| Storm Davis | KCA | -1.15 | 199105080_KCA_DET |
| Frank Tanana | DET | -1.12 | 199105080_KCA_DET |
| Randy Johnson | SEA | -0.96 | 199105070_CLE_SEA |
Based on accumulated WAA for this season up to 1991-05-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.44 | Roger Clemens | 49 | BOS |
| +002+ | 2.54 | Tom Candiotti | 44 | CLE |
| +003+ | 2.49 | Scott Erickson | 49 | MIN |
| +004+ | 2.37 | Ramon Martinez | 45 | LAN |
| +005+ | 2.29 | Pete Harnisch | 40.7 | HOU |
| +007+ | 2.22 | Mike Morgan | 38.7 | LAN |
| +009+ | 2 | Tom Gordon | 27 | KCA |
| +011+ | 1.84 | Dennis Martinez | 43.7 | WAS |
| +012+ | 1.74 | Zane Smith | 43.7 | PIT |
| +018+ | 1.56 | Vicente Palacios | 29.7 | PIT |
| +020+ | 1.55 | Tom Bolton | 25 | BOS |
| +019+ | 1.55 | Tom Browning | 46.7 | CIN |
| +021+ | 1.52 | Jose Mesa | 40.3 | BAL |
| +022+ | 1.51 | Jose DeLeon | 36 | SLN |
| +025+ | 1.46 | Frank Viola | 43.3 | NYN |
| +028+ | 1.39 | Dwight Gooden | 45 | NYN |
| +029+ | 1.38 | Tim Belcher | 36.3 | LAN |
| +034+ | 1.28 | Charles Nagy | 44 | CLE |
| +035+ | 1.27 | Tom Glavine | 39.3 | ATL |
| XXXXX | 1.22 | Jimmy Key | 40 | TOR |
| XXXXX | 1.21 | Kevin Tapani | 37 | MIN |
| XXXXX | 1.01 | Greg Hibbard | 43.7 | CHA |
| XXXXX | 0.91 | Randy Tomlin | 27 | PIT |
| XXXXX | 0.78 | Bruce Hurst | 43 | SDN |
| XXXXX | 0.78 | Dan Petry | 16.3 | DET |
_