| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dennis Martinez | WAS | 11.07 | 199108170_SLN_WAS |
| Tom Glavine | ATL | 7.55 | 199108180_ATL_SDN |
| Tom Candiotti | TOR | 7.23 | 199108180_TOR_DET |
| Mike Morgan | LAN | 6.15 | 199108180_HOU_LAN |
| Jose DeLeon | SLN | 2.76 | 199108170_SLN_WAS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wade Taylor | NYA | -3.97 | 199108170_CHA_NYA |
| Dave Stewart | OAK | -3.95 | 199108180_OAK_MIN |
| Alex Fernandez | CHA | -3.39 | 199108190_DET_CHA |
| Danny Jackson | CHN | -1.33 | 199108180_PHI_CHN |
| Ben McDonald | BAL | -1.05 | 199108170_BAL_MIL |
Based on accumulated WAA for this season up to 1991-08-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.29 | Dennis Martinez | 186.3 | WAS |
| +003+ | 7.15 | Tom Glavine | 182.7 | ATL |
| +005+ | 6.73 | Tom Candiotti | 181 | TOT |
| +009+ | 5.98 | Pete Harnisch | 164.7 | HOU |
| +011+ | 5.88 | Roger Clemens | 189.3 | BOS |
| +016+ | 5.02 | Mike Morgan | 173 | LAN |
| +018+ | 4.86 | Tim Belcher | 162 | LAN |
| +025+ | 4.41 | Randy Tomlin | 118.7 | PIT |
| +026+ | 4.26 | Ramon Martinez | 169.3 | LAN |
| +033+ | 4.07 | Jose DeLeon | 149 | SLN |
| +037+ | 3.82 | Jose Rijo | 134.7 | CIN |
| +040+ | 3.71 | Scott Erickson | 152.7 | MIN |
| +042+ | 3.67 | Kevin Tapani | 179.7 | MIN |
| +047+ | 3.53 | Jim Abbott | 177.7 | ANA |
| +048+ | 3.51 | Tommy Greene | 150 | PHI |
| +050+ | 3.4 | Nolan Ryan | 127 | TEX |
| +051+ | 3.39 | Greg Harris | 71.7 | SDN |
| +054+ | 3.27 | Jimmy Key | 155.3 | TOR |
| +058+ | 3.11 | Bob Tewksbury | 136.3 | SLN |
| +060+ | 3.07 | Bill Krueger | 125 | SEA |
| +066+ | 2.92 | Luis Aquino | 114.3 | KCA |
| +072+ | 2.76 | Bruce Hurst | 184.3 | SDN |
| +071+ | 2.76 | Mark Langston | 183 | ANA |
| +075+ | 2.71 | Doug Drabek | 168.7 | PIT |
| +083+ | 2.48 | Zane Smith | 159.3 | PIT |
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