| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bruce Hurst | SDN | 4.05 | 199104200_LAN_SDN |
| Bob Welch | OAK | 3.15 | 199104200_OAK_SEA |
| Frank Viola | NYN | 2.46 | 199104200_NYN_WAS |
| Greg Maddux | CHN | 2.3 | 199104200_CHN_PIT |
| Danny Darwin | BOS | 2.07 | 199104220_TOR_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Andy Hawkins | NYA | -4.18 | 199104220_DET_NYA |
| Dave LaPoint | PHI | -3.24 | 199104202_PHI_SLN |
| Walt Terrell | DET | -3.12 | 199104200_DET_CHA |
| Melido Perez | CHA | -3.05 | 199104210_DET_CHA |
| Jim Abbott | ANA | -2.22 | 199104220_SEA_ANA |
Based on accumulated WAA for this season up to 1991-04-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 1.91 | Roger Clemens | 25 | BOS |
| +004+ | 1.42 | Tim Belcher | 20.7 | LAN |
| +005+ | 1.4 | Norm Charlton | 23.3 | CIN |
| +006+ | 1.39 | Mike Morgan | 15.7 | LAN |
| +007+ | 1.34 | Frank Viola | 23 | NYN |
| +012+ | 1.26 | John Smiley | 17 | PIT |
| +013+ | 1.25 | Tom Candiotti | 22 | CLE |
| XXXXX | 1.25 | Mike Boddicker | 23 | KCA |
| XXXXX | 1.22 | Tom Browning | 23.7 | CIN |
| XXXXX | 1.13 | Bob Welch | 24.7 | OAK |
| XXXXX | 1.12 | Dennis Martinez | 19.7 | WAS |
| XXXXX | 1.1 | Charles Nagy | 22.7 | CLE |
| XXXXX | 1.09 | Tom Gordon | 12 | KCA |
| XXXXX | 1.05 | Jimmy Key | 22 | TOR |
| XXXXX | 1.03 | Pete Harnisch | 18.3 | HOU |
| XXXXX | 1.01 | Dwight Gooden | 24 | NYN |
| XXXXX | 0.98 | Bobby Witt | 16 | TEX |
| XXXXX | 0.93 | Kevin Tapani | 22 | MIN |
| XXXXX | 0.92 | Brian Holman | 22.7 | SEA |
| XXXXX | 0.91 | Jose DeLeon | 17.3 | SLN |
| XXXXX | 0.87 | Shawn Boskie | 20.3 | CHN |
| XXXXX | 0.86 | Bill Sampen | 12 | WAS |
| XXXXX | 0.78 | Mike Moore | 18.3 | OAK |
| XXXXX | 0.78 | Bud Black | 23 | SFN |
| XXXXX | 0.77 | Greg Hibbard | 21.7 | CHA |
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