| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Yankees | NYA | 2.96 | 199108150_KCA_NYA |
| Seattle Mariners | SEA | 2.13 | 199108140_OAK_SEA |
| Chicago White Sox | CHA | 1.84 | 199108150_CHA_DET |
| California Angels | ANA | 1.6 | 199108130_ANA_MIN |
| San Diego Padres | SDN | 1.53 | 199108130_HOU_SDN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Texas Rangers | TEX | -4.09 | 199108150_TEX_BAL |
| Detroit Tigers | DET | -3.35 | 199108150_CHA_DET |
| Boston Red Sox | BOS | -2.39 | 199108131_BOS_CLE |
| Milwaukee Brewers | MIL | -2.03 | 199108150_TOR_MIL |
| Oakland Athletics | OAK | -1.37 | 199108150_OAK_SEA |
Based on accumulated WAA for this season up to 1991-08-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +031+ | 4.02 | Chuck McElroy | 73 | CHN |
| +032+ | 4.02 | Mark Eichhorn | 62 | ANA |
| +045+ | 3.6 | Mike Flanagan | 83.3 | BAL |
| +050+ | 3.33 | Scott Terry | 68 | SLN |
| +057+ | 2.92 | Bryan Harvey | 52.3 | ANA |
| +062+ | 2.79 | John Habyan | 62.3 | NYA |
| +068+ | 2.67 | Steve Howe | 47.3 | NYA |
| +069+ | 2.62 | Carl Willis | 60.3 | MIN |
| +072+ | 2.57 | Juan Berenguer | 64.3 | ATL |
| +073+ | 2.55 | Bill Swift | 62 | SEA |
| +078+ | 2.47 | Rob Dibble | 58.3 | CIN |
| +079+ | 2.46 | Al Osuna | 59 | HOU |
| +082+ | 2.4 | Todd Frohwirth | 56.3 | BAL |
| +083+ | 2.39 | Duane Ward | 81.3 | TOR |
| +084+ | 2.35 | Mitch Williams | 58.3 | PHI |
| +093+ | 2.16 | Francisco Oliveras | 58 | SFN |
| +095+ | 2.14 | Mike Henneman | 76 | DET |
| +097+ | 2.09 | Melido Perez | 108 | CHA |
| +100+ | 2.07 | Scott Radinsky | 51.3 | CHA |
| +101+ | 2.06 | Jeff Innis | 58.7 | NYN |
| +110+ | 1.93 | Mike Maddux | 69.3 | SDN |
| +115+ | 1.9 | Alejandro Pena | 57 | NYN |
| +119+ | 1.8 | Michael Jackson | 63 | SEA |
| +122+ | 1.78 | Jeff Fassero | 38 | WAS |
| +124+ | 1.77 | Dennis Eckersley | 53.3 | OAK |
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