| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Glavine | ATL | 9.88 | 199109080_ATL_NYN |
| Roger Clemens | BOS | 7.62 | 199109100_BOS_DET |
| Dennis Martinez | WAS | 7.33 | 199109080_CIN_WAS |
| Tim Belcher | LAN | 4.47 | 199109090_LAN_CIN |
| Jose Rijo | CIN | 3.86 | 199109100_LAN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stewart | OAK | -4.7 | 199109080_OAK_DET |
| Jack Armstrong | CIN | -2.63 | 199109080_CIN_WAS |
| Mark Gubicza | KCA | -2.62 | 199109100_MIN_KCA |
| Alex Fernandez | CHA | -2.45 | 199109090_CHA_OAK |
| Jeff Johnson | NYA | -2.1 | 199109080_NYA_MIN |
Based on accumulated WAA for this season up to 1991-09-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.21 | Roger Clemens | 232.3 | BOS |
| +002+ | 8.13 | Tom Glavine | 213.7 | ATL |
| +004+ | 7.92 | Tom Candiotti | 211.7 | TOT |
| +006+ | 7.35 | Dennis Martinez | 202.3 | WAS |
| +011+ | 6.4 | Pete Harnisch | 191.7 | HOU |
| +015+ | 5.86 | Jose Rijo | 170.3 | CIN |
| +016+ | 5.79 | Tim Belcher | 185 | LAN |
| +018+ | 5.5 | Kevin Tapani | 210.7 | MIN |
| +020+ | 5.3 | Mike Morgan | 200.3 | LAN |
| +022+ | 5.18 | Jim Abbott | 203.3 | ANA |
| +032+ | 4.52 | Jimmy Key | 180.3 | TOR |
| +036+ | 4.17 | Mark Langston | 208.3 | ANA |
| +043+ | 3.92 | Ramon Martinez | 199 | LAN |
| +044+ | 3.89 | Bruce Hurst | 215 | SDN |
| +045+ | 3.88 | Greg Harris | 97.7 | SDN |
| +060+ | 3.41 | Randy Tomlin | 147 | PIT |
| +061+ | 3.3 | Scott Erickson | 175.3 | MIN |
| +062+ | 3.29 | Andy Benes | 190 | SDN |
| +063+ | 3.28 | Jose Guzman | 139 | TEX |
| +066+ | 3.19 | Tommy Greene | 185 | PHI |
| +071+ | 3.07 | Bob Tewksbury | 164.7 | SLN |
| +075+ | 2.97 | Kevin Appier | 181.3 | KCA |
| +076+ | 2.91 | Doug Drabek | 198.7 | PIT |
| +077+ | 2.88 | Zane Smith | 187 | PIT |
| +080+ | 2.76 | Mike Moore | 173.7 | OAK |
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