| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 6.44 | 199105280_BOS_NYA |
| Chuck Finley | ANA | 4.89 | 199105290_ANA_CHA |
| Frank Viola | NYN | 3.92 | 199105270_NYN_CHN |
| Bruce Hurst | SDN | 3.82 | 199105270_ATL_SDN |
| Zane Smith | PIT | 3.62 | 199105290_PIT_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Morris | MIN | -4.3 | 199105290_MIN_TEX |
| Walt Terrell | DET | -2.87 | 199105290_DET_MIL |
| Don August | MIL | -2 | 199105280_DET_MIL |
| Jeff Robinson | BAL | -1.54 | 199105290_CLE_BAL |
| Charlie Hough | CHA | -1.22 | 199105280_ANA_CHA |
Based on accumulated WAA for this season up to 1991-05-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.02 | Scott Erickson | 77.3 | MIN |
| +003+ | 3.05 | Tom Glavine | 72.3 | ATL |
| +004+ | 3.03 | Dennis Martinez | 74 | WAS |
| +005+ | 3.03 | Mike Morgan | 67.3 | LAN |
| +007+ | 2.97 | Tom Gordon | 57.7 | KCA |
| +009+ | 2.81 | Roger Clemens | 77 | BOS |
| +011+ | 2.72 | Zane Smith | 70 | PIT |
| +013+ | 2.56 | Frank Viola | 73 | NYN |
| +017+ | 2.48 | Tom Candiotti | 72 | CLE |
| +019+ | 2.26 | Jimmy Key | 66.7 | TOR |
| +024+ | 2.07 | Pete Harnisch | 65 | HOU |
| +028+ | 2 | Tommy Greene | 51.7 | PHI |
| +029+ | 1.86 | Jimmy Jones | 58 | HOU |
| +032+ | 1.79 | Greg Swindell | 73.7 | CLE |
| +038+ | 1.66 | Chris Bosio | 68.3 | MIL |
| +042+ | 1.61 | Bret Saberhagen | 70.3 | KCA |
| +046+ | 1.54 | Tim Belcher | 58 | LAN |
| +053+ | 1.48 | Jose Rijo | 65 | CIN |
| +074+ | 1.26 | Todd Stottlemyre | 58 | TOR |
| XXXXX | 1.24 | Tom Browning | 71.7 | CIN |
| XXXXX | 1.21 | Bob Welch | 73.3 | OAK |
| XXXXX | 1.14 | Randy Tomlin | 38.3 | PIT |
| XXXXX | 1.14 | John Smiley | 54.7 | PIT |
| XXXXX | 1.11 | Charlie Leibrandt | 64.7 | ATL |
| XXXXX | 1.09 | Terry Mulholland | 79.7 | PHI |
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