| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Glavine | ATL | 9.88 | 199109080_ATL_NYN |
| Tom Candiotti | TOR | 7.99 | 199109070_TOR_CLE |
| Dennis Martinez | WAS | 7.33 | 199109080_CIN_WAS |
| Tim Belcher | LAN | 4.47 | 199109090_LAN_CIN |
| Jim Abbott | ANA | 3.03 | 199109080_MIL_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stewart | OAK | -4.7 | 199109080_OAK_DET |
| Jose Mesa | BAL | -2.96 | 199109070_KCA_BAL |
| Jack Armstrong | CIN | -2.63 | 199109080_CIN_WAS |
| Alex Fernandez | CHA | -2.45 | 199109090_CHA_OAK |
| Bobby Witt | TEX | -2.29 | 199109070_CHA_TEX |
Based on accumulated WAA for this season up to 1991-09-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.15 | Tom Glavine | 213.7 | ATL |
| +003+ | 7.94 | Tom Candiotti | 211.7 | TOT |
| +005+ | 7.4 | Roger Clemens | 223.3 | BOS |
| +006+ | 7.35 | Dennis Martinez | 202.3 | WAS |
| +011+ | 6.42 | Pete Harnisch | 191.7 | HOU |
| +015+ | 5.79 | Tim Belcher | 185 | LAN |
| +016+ | 5.52 | Kevin Tapani | 210.7 | MIN |
| +018+ | 5.32 | Jose Rijo | 164.3 | CIN |
| +019+ | 5.3 | Mike Morgan | 200.3 | LAN |
| +021+ | 5.2 | Jim Abbott | 203.3 | ANA |
| +031+ | 4.63 | Ramon Martinez | 195.3 | LAN |
| +032+ | 4.54 | Jimmy Key | 180.3 | TOR |
| +035+ | 4.19 | Mark Langston | 208.3 | ANA |
| +045+ | 3.91 | Bruce Hurst | 215 | SDN |
| +046+ | 3.89 | Greg Harris | 97.7 | SDN |
| +047+ | 3.89 | Randy Tomlin | 143 | PIT |
| +060+ | 3.32 | Scott Erickson | 175.3 | MIN |
| +062+ | 3.3 | Andy Benes | 190 | SDN |
| +068+ | 3.09 | Bob Tewksbury | 164.7 | SLN |
| +072+ | 3 | Bill Wegman | 143.7 | MIL |
| +073+ | 2.99 | Kevin Appier | 181.3 | KCA |
| +075+ | 2.91 | Doug Drabek | 198.7 | PIT |
| +076+ | 2.89 | Mark Gardner | 142 | WAS |
| +077+ | 2.89 | Zane Smith | 187 | PIT |
| +081+ | 2.76 | Greg Swindell | 209 | CLE |
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