| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Glavine | ATL | 10.7 | 199109020_ATL_WAS |
| Tom Candiotti | TOR | 8.09 | 199109020_BAL_TOR |
| Jose Rijo | CIN | 4.51 | 199109030_CIN_PHI |
| Mike Morgan | LAN | 3.98 | 199109030_SLN_LAN |
| Jim Abbott | ANA | 3.34 | 199109020_ANA_MIL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stewart | OAK | -4.98 | 199109030_OAK_MIL |
| Dave Johnson | BAL | -4.68 | 199109020_BAL_TOR |
| Wade Taylor | NYA | -3.02 | 199109020_NYA_TEX |
| Don August | MIL | -2.12 | 199109020_ANA_MIL |
| Scott Aldred | DET | -1.42 | 199109030_DET_SEA |
Based on accumulated WAA for this season up to 1991-09-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.27 | Tom Glavine | 205.7 | ATL |
| +003+ | 7.36 | Tom Candiotti | 202.7 | TOT |
| +005+ | 7.26 | Roger Clemens | 214.3 | BOS |
| +013+ | 6.02 | Pete Harnisch | 184.7 | HOU |
| +015+ | 5.7 | Tim Belcher | 177 | LAN |
| +017+ | 5.31 | Jose Rijo | 164.3 | CIN |
| +018+ | 5.04 | Kevin Tapani | 202.7 | MIN |
| +020+ | 4.95 | Mike Morgan | 194 | LAN |
| +025+ | 4.66 | Jim Abbott | 197.3 | ANA |
| +030+ | 4.22 | Ramon Martinez | 188.3 | LAN |
| +038+ | 4.07 | Jimmy Key | 172.7 | TOR |
| +040+ | 3.98 | Mark Langston | 201.3 | ANA |
| +043+ | 3.9 | Randy Tomlin | 136 | PIT |
| +058+ | 3.44 | Scott Erickson | 169.3 | MIN |
| +060+ | 3.39 | Greg Harris | 89.7 | SDN |
| +061+ | 3.22 | Bruce Hurst | 207 | SDN |
| +065+ | 3.12 | Bob Tewksbury | 158.3 | SLN |
| +067+ | 3.11 | Bret Saberhagen | 162 | KCA |
| +070+ | 3.05 | Nolan Ryan | 134 | TEX |
| +074+ | 2.96 | Mark Gardner | 135.7 | WAS |
| +075+ | 2.82 | Luis Aquino | 126.3 | KCA |
| +076+ | 2.81 | Greg Swindell | 200 | CLE |
| +078+ | 2.78 | Jose Guzman | 131 | TEX |
| +079+ | 2.75 | Tommy Greene | 168.7 | PHI |
| +081+ | 2.72 | Doug Drabek | 191.7 | PIT |
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