| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Welch | OAK | 4.9 | 199104300_NYA_OAK |
| Ed Whitson | SDN | 4.43 | 199104290_SDN_PHI |
| Doug Drabek | PIT | 3.92 | 199104300_PIT_CIN |
| Dennis Martinez | WAS | 3.43 | 199104300_LAN_WAS |
| Bret Saberhagen | KCA | 2.31 | 199104290_DET_KCA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Kevin Gross | LAN | -5.96 | 199104280_SFN_LAN |
| Jack Morris | MIN | -5.41 | 199104280_SEA_MIN |
| Walt Terrell | DET | -3.13 | 199104300_DET_KCA |
| Jim Abbott | ANA | -1.98 | 199104280_ANA_OAK |
| Storm Davis | KCA | -1.57 | 199104280_BOS_KCA |
Based on accumulated WAA for this season up to 1991-04-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.53 | Roger Clemens | 32 | BOS |
| +002+ | 2.2 | Dennis Martinez | 36.7 | WAS |
| +004+ | 2.1 | Frank Viola | 31.3 | NYN |
| +005+ | 1.99 | Tim Belcher | 29.7 | LAN |
| +006+ | 1.84 | Bob Welch | 40 | OAK |
| +008+ | 1.74 | Mike Morgan | 31.7 | LAN |
| +009+ | 1.62 | Tom Candiotti | 29 | CLE |
| +012+ | 1.56 | Pete Harnisch | 25.7 | HOU |
| +014+ | 1.42 | Vicente Palacios | 18.7 | PIT |
| +017+ | 1.39 | Greg Hibbard | 29 | CHA |
| +018+ | 1.38 | Charles Nagy | 28.7 | CLE |
| +019+ | 1.37 | Chris Bosio | 36 | MIL |
| +022+ | 1.27 | Mike Boddicker | 31 | KCA |
| +023+ | 1.26 | Scott Erickson | 31 | MIN |
| +024+ | 1.25 | Jimmy Key | 29 | TOR |
| XXXXX | 1.18 | Tom Browning | 38.7 | CIN |
| XXXXX | 1.17 | Kevin Tapani | 30 | MIN |
| XXXXX | 1.13 | Dwight Gooden | 37 | NYN |
| XXXXX | 1.09 | Ramon Martinez | 29 | LAN |
| XXXXX | 1.04 | Bruce Hurst | 29 | SDN |
| XXXXX | 1.02 | Chris Hammond | 22 | CIN |
| XXXXX | 0.99 | Jose DeLeon | 28.3 | SLN |
| XXXXX | 0.95 | Shawn Boskie | 28 | CHN |
| XXXXX | 0.94 | John Smiley | 27.7 | PIT |
| XXXXX | 0.94 | Tom Bolton | 18.3 | BOS |
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