| Starter | Tm | Tier | Game |
|---|---|---|---|
| Chuck Finley | ANA | 6.34 | 199104240_SEA_ANA |
| Ed Whitson | SDN | 5.28 | 199104240_SDN_SFN |
| Bob Welch | OAK | 4.21 | 199104260_ANA_OAK |
| Dennis Martinez | WAS | 3.11 | 199104240_PIT_WAS |
| Frank Viola | NYN | 3.09 | 199104260_PIT_NYN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Morris | MIN | -5.22 | 199104240_OAK_MIN |
| Walt Terrell | DET | -2.29 | 199104260_DET_TOR |
| Charlie Hough | CHA | -1.08 | 199104240_BAL_CHA |
| Jeff Ballard | BAL | -1.06 | 199104240_BAL_CHA |
| Randy Johnson | SEA | -0.93 | 199104260_SEA_MIN |
Based on accumulated WAA for this season up to 1991-04-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.46 | Roger Clemens | 32 | BOS |
| +002+ | 2.01 | Frank Viola | 31.3 | NYN |
| +003+ | 1.92 | Tim Belcher | 29.7 | LAN |
| +008+ | 1.56 | Tom Candiotti | 29 | CLE |
| +009+ | 1.56 | Bob Welch | 32.7 | OAK |
| +010+ | 1.37 | Vicente Palacios | 18.7 | PIT |
| +011+ | 1.34 | Dennis Martinez | 27.7 | WAS |
| +013+ | 1.3 | Greg Hibbard | 29 | CHA |
| +014+ | 1.29 | Norm Charlton | 23.3 | CIN |
| XXXXX | 1.22 | Mike Boddicker | 31 | KCA |
| XXXXX | 1.2 | Scott Erickson | 31 | MIN |
| XXXXX | 1.19 | Mike Morgan | 23.7 | LAN |
| XXXXX | 1.18 | Jimmy Key | 29 | TOR |
| XXXXX | 1.16 | Jose DeLeon | 23.3 | SLN |
| XXXXX | 1.08 | John Smiley | 22.7 | PIT |
| XXXXX | 1.07 | Chris Bosio | 31 | MIL |
| XXXXX | 1.04 | Charles Nagy | 22.7 | CLE |
| XXXXX | 1.04 | Tom Gordon | 12 | KCA |
| XXXXX | 1.02 | Ramon Martinez | 29 | LAN |
| XXXXX | 0.94 | Bruce Hurst | 29 | SDN |
| XXXXX | 0.93 | Pete Harnisch | 18.3 | HOU |
| XXXXX | 0.93 | Dwight Gooden | 31 | NYN |
| XXXXX | 0.88 | Tom Browning | 31 | CIN |
| XXXXX | 0.88 | Brian Holman | 22.7 | SEA |
| XXXXX | 0.87 | Shawn Boskie | 20.3 | CHN |
_