| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dennis Martinez | WAS | 12.98 | 199108230_WAS_HOU |
| Tom Candiotti | TOR | 8.28 | 199108230_NYA_TOR |
| Tom Glavine | ATL | 8.12 | 199108230_PHI_ATL |
| Roger Clemens | BOS | 7.12 | 199108212_CLE_BOS |
| Pete Harnisch | HOU | 5.13 | 199108210_SFN_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stewart | OAK | -4.18 | 199108230_MIL_OAK |
| Wade Taylor | NYA | -3.66 | 199108230_NYA_TOR |
| Don August | MIL | -1.65 | 199108220_MIL_TOR |
| Ben McDonald | BAL | -1.44 | 199108230_MIN_BAL |
| Allan Anderson | MIN | -1.07 | 199108230_MIN_BAL |
Based on accumulated WAA for this season up to 1991-08-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.87 | Dennis Martinez | 192.3 | WAS |
| +002+ | 7.72 | Tom Glavine | 188.7 | ATL |
| +007+ | 6.37 | Tom Candiotti | 187.7 | TOT |
| +010+ | 5.84 | Pete Harnisch | 171.7 | HOU |
| +012+ | 5.75 | Roger Clemens | 196.3 | BOS |
| +016+ | 5.1 | Mike Morgan | 173 | LAN |
| +017+ | 4.93 | Tim Belcher | 162 | LAN |
| +021+ | 4.7 | Jose DeLeon | 155 | SLN |
| +026+ | 4.32 | Jose Rijo | 142.3 | CIN |
| +027+ | 4.25 | Kevin Tapani | 187.7 | MIN |
| +033+ | 4.07 | Jim Abbott | 184.7 | ANA |
| +036+ | 4 | Randy Tomlin | 123 | PIT |
| +039+ | 3.96 | Ramon Martinez | 174.3 | LAN |
| +047+ | 3.62 | Scott Erickson | 158 | MIN |
| +048+ | 3.58 | Doug Drabek | 177.7 | PIT |
| +053+ | 3.45 | Nolan Ryan | 127 | TEX |
| +054+ | 3.4 | Mark Langston | 191 | ANA |
| +058+ | 3.27 | Jimmy Key | 161.7 | TOR |
| +059+ | 3.26 | Tommy Greene | 156 | PHI |
| +067+ | 3 | Luis Aquino | 119.3 | KCA |
| +070+ | 2.86 | Greg Swindell | 185.3 | CLE |
| +072+ | 2.78 | Bruce Hurst | 192.7 | SDN |
| +073+ | 2.75 | Greg Harris | 75.7 | SDN |
| +075+ | 2.69 | Bob Tewksbury | 142.3 | SLN |
| +076+ | 2.68 | Mike Moore | 147.3 | OAK |
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