| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Candiotti | TOR | 9.52 | 199109180_TOR_SEA |
| Tom Glavine | ATL | 7.82 | 199109180_ATL_SDN |
| Dennis Martinez | WAS | 7.65 | 199109180_WAS_PHI |
| Pete Harnisch | HOU | 4.03 | 199109170_HOU_SDN |
| Mike Morgan | LAN | 3.8 | 199109180_HOU_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stewart | OAK | -5.48 | 199109180_OAK_CHA |
| Jose Mesa | BAL | -3.96 | 199109170_BAL_BOS |
| Jeff Johnson | NYA | -3.24 | 199109180_MIL_NYA |
| Mark Gubicza | KCA | -2.55 | 199109160_KCA_MIN |
| Don August | MIL | -2.47 | 199109160_MIL_NYA |
Based on accumulated WAA for this season up to 1991-09-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.93 | Tom Candiotti | 226.3 | TOT |
| +004+ | 8.14 | Dennis Martinez | 218.3 | WAS |
| +005+ | 7.97 | Roger Clemens | 239.3 | BOS |
| +007+ | 7.55 | Tom Glavine | 228.7 | ATL |
| +011+ | 6.44 | Jose Rijo | 177.3 | CIN |
| +014+ | 6.07 | Pete Harnisch | 199.7 | HOU |
| +017+ | 5.77 | Kevin Tapani | 223 | MIN |
| +018+ | 5.71 | Tim Belcher | 187.7 | LAN |
| +019+ | 5.67 | Jim Abbott | 212.3 | ANA |
| +024+ | 5.4 | Mike Morgan | 214.3 | LAN |
| +028+ | 4.88 | Greg Harris | 113.3 | SDN |
| +030+ | 4.77 | Mark Langston | 216.3 | ANA |
| +046+ | 3.83 | Chris Bosio | 190.3 | MIL |
| +051+ | 3.7 | Andy Benes | 197 | SDN |
| +052+ | 3.66 | Jack McDowell | 239 | CHA |
| +056+ | 3.59 | Bob Tewksbury | 177.7 | SLN |
| +058+ | 3.57 | Zane Smith | 204 | PIT |
| +060+ | 3.56 | Jimmy Key | 187.3 | TOR |
| +061+ | 3.52 | Doug Drabek | 212.7 | PIT |
| +070+ | 3.33 | Jose Guzman | 145 | TEX |
| +073+ | 3.25 | Charlie Leibrandt | 209.3 | ATL |
| +075+ | 3.22 | Randy Tomlin | 154.3 | PIT |
| +074+ | 3.22 | Bruce Hurst | 221.7 | SDN |
| +077+ | 3.21 | Tommy Greene | 192.7 | PHI |
| +083+ | 3 | Nolan Ryan | 146 | TEX |
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