| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 7.62 | 199109100_BOS_DET |
| Pete Harnisch | HOU | 5.67 | 199109110_LAN_HOU |
| Kevin Tapani | MIN | 4.15 | 199109110_MIN_KCA |
| Jose Rijo | CIN | 3.86 | 199109100_LAN_CIN |
| Ramon Martinez | LAN | 2.9 | 199109100_LAN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jose Mesa | BAL | -2.89 | 199109120_CLE_BAL |
| Wade Taylor | NYA | -2.66 | 199109110_NYA_BAL |
| Mark Gubicza | KCA | -2.62 | 199109100_MIN_KCA |
| Scott Lewis | ANA | -1.43 | 199109110_TEX_ANA |
| Allan Anderson | MIN | -1.34 | 199109100_MIN_KCA |
Based on accumulated WAA for this season up to 1991-09-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.21 | Roger Clemens | 232.3 | BOS |
| +002+ | 8.11 | Tom Glavine | 213.7 | ATL |
| +004+ | 7.9 | Tom Candiotti | 211.7 | TOT |
| +006+ | 7.34 | Dennis Martinez | 202.3 | WAS |
| +014+ | 5.84 | Jose Rijo | 170.3 | CIN |
| +015+ | 5.76 | Tim Belcher | 185 | LAN |
| +017+ | 5.5 | Pete Harnisch | 193.7 | HOU |
| +019+ | 5.27 | Mike Morgan | 200.3 | LAN |
| +022+ | 5.13 | Kevin Tapani | 215.7 | MIN |
| +024+ | 5.11 | Jim Abbott | 203.3 | ANA |
| +033+ | 4.41 | Greg Harris | 105.7 | SDN |
| +040+ | 4.1 | Mark Langston | 208.3 | ANA |
| +042+ | 3.89 | Ramon Martinez | 199 | LAN |
| +049+ | 3.71 | Zane Smith | 196 | PIT |
| +050+ | 3.64 | Jimmy Key | 182.3 | TOR |
| +055+ | 3.58 | Bruce Hurst | 220.7 | SDN |
| +059+ | 3.41 | Randy Tomlin | 147 | PIT |
| +062+ | 3.31 | Scott Erickson | 175.3 | MIN |
| +063+ | 3.3 | Andy Benes | 190 | SDN |
| +067+ | 3.24 | Doug Drabek | 204.7 | PIT |
| +068+ | 3.24 | Jose Guzman | 139 | TEX |
| +070+ | 3.18 | Tommy Greene | 185 | PHI |
| +077+ | 3.08 | Charlie Leibrandt | 202.3 | ATL |
| +079+ | 3.04 | Chris Bosio | 181.3 | MIL |
| +080+ | 3.03 | Nolan Ryan | 146 | TEX |
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