| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 8.59 | 199110060_MIL_BOS |
| Jose Rijo | CIN | 5.13 | 199110060_CIN_SDN |
| Pete Harnisch | HOU | 4.47 | 199110060_HOU_ATL |
| Mike Morgan | LAN | 4.04 | 199110050_LAN_SFN |
| Jim Abbott | ANA | 3.55 | 199110050_KCA_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stewart | OAK | -5.94 | 199110040_OAK_TEX |
| Dave Johnson | BAL | -5.23 | 199110050_DET_BAL |
| Jack Armstrong | CIN | -2.42 | 199110050_CIN_SDN |
| Shawn Boskie | CHN | -1.99 | 199110052_SLN_CHN |
| Kevin Brown | TEX | -1.09 | 199110040_OAK_TEX |
Based on accumulated WAA for this season up to 1991-10-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.35 | Roger Clemens | 271.3 | BOS |
| +007+ | 7.77 | Tom Glavine | 246.7 | ATL |
| +010+ | 6.98 | Tom Candiotti | 238 | TOT |
| +011+ | 6.81 | Jose Rijo | 204.3 | CIN |
| +016+ | 6.19 | Tim Belcher | 209.3 | LAN |
| +017+ | 6.14 | Jim Abbott | 243 | ANA |
| +018+ | 6.12 | Mike Morgan | 236.3 | LAN |
| +019+ | 6.08 | Pete Harnisch | 216.7 | HOU |
| +026+ | 5.39 | Mark Langston | 246.3 | ANA |
| +027+ | 5.34 | Jose DeLeon | 162.7 | SLN |
| +028+ | 5.27 | Kevin Tapani | 244 | MIN |
| +029+ | 5.19 | Greg Harris | 133 | SDN |
| +039+ | 4.75 | Mike Moore | 210 | OAK |
| +043+ | 4.67 | Bill Wegman | 193.3 | MIL |
| +046+ | 4.57 | Andy Benes | 223 | SDN |
| +049+ | 4.52 | Doug Drabek | 234.7 | PIT |
| +057+ | 4.03 | Jimmy Key | 209.3 | TOR |
| +060+ | 3.96 | John Smiley | 207.7 | PIT |
| +067+ | 3.72 | Randy Tomlin | 175 | PIT |
| +066+ | 3.72 | Nolan Ryan | 173 | TEX |
| +068+ | 3.7 | Zane Smith | 228 | PIT |
| +069+ | 3.65 | Bret Saberhagen | 196.3 | KCA |
| +070+ | 3.51 | Scott Erickson | 204 | MIN |
| +073+ | 3.44 | David Cone | 232.7 | NYN |
| +081+ | 3.2 | Ramon Martinez | 220.3 | LAN |
_