| Team | Tm | Tier | Game |
|---|---|---|---|
| Baltimore Orioles | BAL | 2.36 | 199108100_CHA_BAL |
| San Diego Padres | SDN | 1.53 | 199108090_CIN_SDN |
| Chicago White Sox | CHA | 1.49 | 199108100_CHA_BAL |
| Seattle Mariners | SEA | 1.48 | 199108090_MIN_SEA |
| Toronto Blue Jays | TOR | 0.88 | 199108080_DET_TOR |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | -5.35 | 199108090_OAK_ANA |
| Texas Rangers | TEX | -2.53 | 199108100_MIL_TEX |
| Boston Red Sox | BOS | -2.23 | 199108100_BOS_TOR |
| Milwaukee Brewers | MIL | -2.01 | 199108080_MIL_BAL |
| St. Louis Cardinals | SLN | -1.36 | 199108100_SLN_PIT |
Based on accumulated WAA for this season up to 1991-08-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +033+ | 3.82 | Mark Eichhorn | 57.7 | ANA |
| +038+ | 3.66 | Chuck McElroy | 68.7 | CHN |
| +045+ | 3.47 | Mike Flanagan | 81.7 | BAL |
| +053+ | 3.05 | Scott Terry | 65 | SLN |
| +059+ | 2.79 | Duane Ward | 76.7 | TOR |
| +064+ | 2.68 | Steve Howe | 47.3 | NYA |
| +065+ | 2.67 | Bryan Harvey | 49.7 | ANA |
| +070+ | 2.55 | Carl Willis | 57.3 | MIN |
| +071+ | 2.52 | Mike Maddux | 69 | SDN |
| +072+ | 2.46 | Juan Berenguer | 63.3 | ATL |
| +073+ | 2.44 | John Habyan | 58.3 | NYA |
| +075+ | 2.41 | Todd Frohwirth | 49.3 | BAL |
| +076+ | 2.39 | Bill Swift | 60.3 | SEA |
| +077+ | 2.39 | Mike Henneman | 69.7 | DET |
| +079+ | 2.32 | Rob Dibble | 54.7 | CIN |
| +080+ | 2.32 | Al Osuna | 57.7 | HOU |
| +093+ | 2.15 | Steve Farr | 50.7 | NYA |
| +101+ | 2.06 | Mitch Williams | 55.3 | PHI |
| +104+ | 1.97 | Francisco Oliveras | 56 | SFN |
| +108+ | 1.94 | Jeff Innis | 57.3 | NYN |
| +110+ | 1.9 | Scott Radinsky | 49.7 | CHA |
| +118+ | 1.73 | Jeff Fassero | 35.3 | WAS |
| +121+ | 1.69 | Donn Pall | 42.7 | CHA |
| +122+ | 1.69 | Melido Perez | 104 | CHA |
| +126+ | 1.65 | Dennis Eckersley | 52.3 | OAK |
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