| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 8.24 | 199109200_NYA_BOS |
| Jose Rijo | CIN | 5.36 | 199109200_CIN_HOU |
| Kevin Tapani | MIN | 4.18 | 199109210_TEX_MIN |
| Tim Belcher | LAN | 4.16 | 199109200_ATL_LAN |
| Jim Abbott | ANA | 4.12 | 199109192_ANA_TEX |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mark Gubicza | KCA | -3.81 | 199109210_KCA_SEA |
| Wade Taylor | NYA | -3.37 | 199109210_NYA_BOS |
| Rich DeLucia | SEA | -2.43 | 199109200_KCA_SEA |
| Alex Fernandez | CHA | -1.58 | 199109200_ANA_CHA |
| Ryan Bowen | HOU | -1.06 | 199109200_CIN_HOU |
Based on accumulated WAA for this season up to 1991-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.87 | Tom Candiotti | 226.3 | TOT |
| +003+ | 8.73 | Roger Clemens | 248.3 | BOS |
| +006+ | 8.07 | Dennis Martinez | 218.3 | WAS |
| +008+ | 7.48 | Tom Glavine | 228.7 | ATL |
| +010+ | 6.55 | Jose Rijo | 183.3 | CIN |
| +014+ | 6.03 | Pete Harnisch | 199.7 | HOU |
| +016+ | 5.88 | Jim Abbott | 220 | ANA |
| +019+ | 5.69 | Kevin Tapani | 232 | MIN |
| +020+ | 5.63 | Tim Belcher | 194.3 | LAN |
| +025+ | 5.35 | Mike Morgan | 214.3 | LAN |
| +026+ | 5.24 | Greg Harris | 120 | SDN |
| +027+ | 5.2 | Mark Langston | 226.3 | ANA |
| +043+ | 4.34 | Zane Smith | 213 | PIT |
| +047+ | 3.89 | Charlie Leibrandt | 217 | ATL |
| +050+ | 3.79 | Andy Benes | 203.3 | SDN |
| +052+ | 3.78 | Chris Bosio | 190.3 | MIL |
| +058+ | 3.58 | Jack McDowell | 239 | CHA |
| +065+ | 3.47 | Doug Drabek | 212.7 | PIT |
| +069+ | 3.36 | Jimmy Key | 195 | TOR |
| +071+ | 3.34 | Tommy Greene | 201.7 | PHI |
| +073+ | 3.26 | Bill Wegman | 168.3 | MIL |
| +076+ | 3.22 | Randy Tomlin | 159.3 | PIT |
| +075+ | 3.22 | Bob Tewksbury | 183 | SLN |
| +080+ | 3.15 | Bruce Hurst | 221.7 | SDN |
| +081+ | 3.12 | Mike Moore | 187.7 | OAK |
_