| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 10.67 | 199110010_DET_BOS |
| Tom Glavine | ATL | 6.3 | 199110020_ATL_CIN |
| Jose Rijo | CIN | 6.13 | 199110010_ATL_CIN |
| Tom Candiotti | TOR | 5.95 | 199110020_ANA_TOR |
| Tim Belcher | LAN | 4.5 | 199110020_SDN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jeff Johnson | NYA | -4.48 | 199110030_BAL_NYA |
| Mark Gubicza | KCA | -4.32 | 199110010_OAK_KCA |
| Jeff Ballard | BAL | -2.29 | 199110030_BAL_NYA |
| Oil Can Boyd | TEX | -0.88 | 199110010_SEA_TEX |
| Walt Terrell | DET | -0.75 | 199110020_DET_BOS |
Based on accumulated WAA for this season up to 1991-10-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.63 | Roger Clemens | 262.3 | BOS |
| +006+ | 7.82 | Tom Glavine | 246.7 | ATL |
| +009+ | 7.04 | Tom Candiotti | 238 | TOT |
| +011+ | 6.71 | Jose Rijo | 196.3 | CIN |
| +016+ | 6.27 | Pete Harnisch | 211.7 | HOU |
| +017+ | 6.2 | Tim Belcher | 209.3 | LAN |
| +018+ | 5.92 | Mike Morgan | 229.3 | LAN |
| +022+ | 5.57 | Jim Abbott | 234 | ANA |
| +026+ | 5.35 | Jose DeLeon | 162.7 | SLN |
| +027+ | 5.34 | Kevin Tapani | 244 | MIN |
| +028+ | 5.21 | Greg Harris | 133 | SDN |
| +034+ | 4.95 | Mark Langston | 238.7 | ANA |
| +038+ | 4.65 | Mike Moore | 204 | OAK |
| +046+ | 4.49 | Bill Wegman | 186.3 | MIL |
| +050+ | 4.3 | Andy Benes | 217.3 | SDN |
| +054+ | 4.11 | Doug Drabek | 229.7 | PIT |
| +056+ | 4.07 | Jimmy Key | 209.3 | TOR |
| +058+ | 3.92 | Zane Smith | 223 | PIT |
| +065+ | 3.66 | Randy Tomlin | 174 | PIT |
| +066+ | 3.65 | Bret Saberhagen | 196.3 | KCA |
| +069+ | 3.54 | Nolan Ryan | 166 | TEX |
| +074+ | 3.36 | Ramon Martinez | 215 | LAN |
| +079+ | 3.13 | Bob Ojeda | 189.3 | LAN |
| +086+ | 3.03 | Jose Guzman | 169.7 | TEX |
| +087+ | 3.01 | Scott Erickson | 198 | MIN |
_