| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Glavine | ATL | 10.7 | 199109020_ATL_WAS |
| Tom Candiotti | TOR | 8.09 | 199109020_BAL_TOR |
| Roger Clemens | BOS | 7.36 | 199108310_BOS_SEA |
| Pete Harnisch | HOU | 4.95 | 199108310_HOU_WAS |
| Jim Abbott | ANA | 3.34 | 199109020_ANA_MIL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Johnson | BAL | -4.68 | 199109020_BAL_TOR |
| Wade Taylor | NYA | -3.02 | 199109020_NYA_TEX |
| Bobby Witt | TEX | -2.48 | 199108310_KCA_TEX |
| Don August | MIL | -2.12 | 199109020_ANA_MIL |
| Mark Gubicza | KCA | -1.48 | 199108310_KCA_TEX |
Based on accumulated WAA for this season up to 1991-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.3 | Tom Glavine | 205.7 | ATL |
| +004+ | 7.39 | Tom Candiotti | 202.7 | TOT |
| +005+ | 7.29 | Roger Clemens | 214.3 | BOS |
| +012+ | 6.03 | Pete Harnisch | 184.7 | HOU |
| +014+ | 5.73 | Tim Belcher | 177 | LAN |
| +017+ | 5.32 | Jose Rijo | 157.3 | CIN |
| +019+ | 5.07 | Kevin Tapani | 202.7 | MIN |
| +020+ | 5.05 | Mike Morgan | 185.7 | LAN |
| +025+ | 4.69 | Jim Abbott | 197.3 | ANA |
| +031+ | 4.24 | Ramon Martinez | 188.3 | LAN |
| +037+ | 4.1 | Jimmy Key | 172.7 | TOR |
| +041+ | 3.93 | Randy Tomlin | 136 | PIT |
| +053+ | 3.46 | Scott Erickson | 169.3 | MIN |
| +055+ | 3.43 | Mark Langston | 195 | ANA |
| +058+ | 3.4 | Greg Harris | 89.7 | SDN |
| +062+ | 3.25 | Bruce Hurst | 207 | SDN |
| +065+ | 3.14 | Bob Tewksbury | 158.3 | SLN |
| +066+ | 3.13 | Bret Saberhagen | 162 | KCA |
| +069+ | 3.07 | Nolan Ryan | 134 | TEX |
| +072+ | 2.99 | Jack McDowell | 209.3 | CHA |
| +073+ | 2.98 | Mark Gardner | 135.7 | WAS |
| +077+ | 2.84 | Luis Aquino | 126.3 | KCA |
| +076+ | 2.84 | Greg Swindell | 200 | CLE |
| +080+ | 2.77 | Tommy Greene | 168.7 | PHI |
| +081+ | 2.76 | Doug Drabek | 191.7 | PIT |
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