| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Candiotti | TOR | 6.71 | 199109280_MIN_TOR |
| Pete Harnisch | HOU | 5.25 | 199109290_ATL_HOU |
| Jim Abbott | ANA | 4.61 | 199109290_ANA_KCA |
| Mike Morgan | LAN | 3.86 | 199109290_SFN_LAN |
| Jose DeLeon | SLN | 3.33 | 199109300_WAS_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stewart | OAK | -5.94 | 199109280_TEX_OAK |
| Jose Mesa | BAL | -4.78 | 199109290_BAL_DET |
| Jeff Johnson | NYA | -3.89 | 199109280_NYA_CLE |
| Rich DeLucia | SEA | -2.88 | 199109280_SEA_CHA |
| Jack Armstrong | CIN | -2.05 | 199109300_ATL_CIN |
Based on accumulated WAA for this season up to 1991-09-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +008+ | 7.27 | Tom Glavine | 238.7 | ATL |
| +009+ | 7.18 | Jose Rijo | 190.3 | CIN |
| +010+ | 7.07 | Tom Candiotti | 231.7 | TOT |
| +015+ | 6.23 | Pete Harnisch | 211.7 | HOU |
| +016+ | 6.17 | Tim Belcher | 202.3 | LAN |
| +019+ | 5.89 | Mike Morgan | 229.3 | LAN |
| +021+ | 5.74 | Kevin Tapani | 239 | MIN |
| +022+ | 5.51 | Jim Abbott | 234 | ANA |
| +025+ | 5.33 | Jose DeLeon | 162.7 | SLN |
| +027+ | 5.18 | Greg Harris | 126 | SDN |
| +033+ | 4.89 | Mark Langston | 238.7 | ANA |
| +047+ | 4.25 | Andy Benes | 210.3 | SDN |
| +053+ | 4.11 | Doug Drabek | 229.7 | PIT |
| +054+ | 4.07 | Bret Saberhagen | 194.3 | KCA |
| +055+ | 4.04 | Jimmy Key | 209.3 | TOR |
| +057+ | 3.94 | Mike Moore | 196.7 | OAK |
| +058+ | 3.92 | Charlie Leibrandt | 222.7 | ATL |
| +059+ | 3.86 | Zane Smith | 220 | PIT |
| +063+ | 3.64 | Bill Wegman | 177.3 | MIL |
| +068+ | 3.52 | Nolan Ryan | 166 | TEX |
| +072+ | 3.33 | Ramon Martinez | 215 | LAN |
| +073+ | 3.32 | Tommy Greene | 207.7 | PHI |
| +074+ | 3.32 | Chris Bosio | 201.7 | MIL |
| +084+ | 3.11 | Bob Tewksbury | 191 | SLN |
| +085+ | 3.09 | Greg Swindell | 232 | CLE |
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