| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tim Leary | NYA | -8.15 | 199108112_DET_NYA |
| Dave Stewart | OAK | -3.04 | 199108130_OAK_SEA |
| Dave Johnson | BAL | -2.93 | 199108110_CHA_BAL |
| Alex Fernandez | CHA | -2.24 | 199108131_CHA_DET |
| Don August | MIL | -1.88 | 199108110_MIL_TEX |
Based on accumulated WAA for this season up to 1991-08-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.54 | Dennis Martinez | 177.3 | WAS |
| +002+ | 7.03 | Tom Glavine | 176.7 | ATL |
| +005+ | 6.35 | Tom Candiotti | 174 | TOT |
| +008+ | 5.87 | Mike Morgan | 167 | LAN |
| +010+ | 5.63 | Pete Harnisch | 157.7 | HOU |
| +012+ | 5.51 | Roger Clemens | 182.3 | BOS |
| +016+ | 4.78 | Ramon Martinez | 164.3 | LAN |
| +019+ | 4.58 | Scott Erickson | 149.7 | MIN |
| +027+ | 4.09 | Jose DeLeon | 142 | SLN |
| +030+ | 4.03 | Tim Belcher | 147 | LAN |
| +031+ | 4.01 | Randy Tomlin | 111.7 | PIT |
| +033+ | 3.94 | Kevin Tapani | 172.3 | MIN |
| +036+ | 3.83 | Tommy Greene | 144 | PHI |
| +045+ | 3.47 | Greg Swindell | 174 | CLE |
| +046+ | 3.3 | Jim Abbott | 170.3 | ANA |
| +048+ | 3.25 | Jimmy Key | 148 | TOR |
| +050+ | 3.22 | Jose Rijo | 127.7 | CIN |
| +057+ | 2.85 | Luis Aquino | 106.3 | KCA |
| +059+ | 2.83 | Bill Krueger | 119.7 | SEA |
| +063+ | 2.8 | Bob Tewksbury | 128 | SLN |
| +067+ | 2.59 | Greg Harris | 62.7 | SDN |
| +074+ | 2.54 | Doug Drabek | 161.7 | PIT |
| +076+ | 2.51 | Bruce Hurst | 176.3 | SDN |
| +077+ | 2.5 | Frank Viola | 175 | NYN |
| +084+ | 2.3 | Kevin Appier | 151.7 | KCA |
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