| Team | Tm | Tier | Game |
|---|---|---|---|
| Baltimore Orioles | BAL | 1.88 | 199109060_KCA_BAL |
| Seattle Mariners | SEA | 1.81 | 199109060_SEA_BOS |
| Chicago White Sox | CHA | 1.77 | 199109060_CHA_TEX |
| California Angels | ANA | 1.54 | 199109060_MIL_ANA |
| Atlanta Braves | ATL | 0.92 | 199109040_ATL_WAS |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Detroit Tigers | DET | -8.36 | 199109050_OAK_DET |
| Texas Rangers | TEX | -1.5 | 199109060_CHA_TEX |
| Oakland Athletics | OAK | -1.47 | 199109050_OAK_DET |
| Philadelphia Phillies | PHI | -1.27 | 199109060_PHI_HOU |
| New York Yankees | NYA | -0.86 | 199109040_NYA_TEX |
Based on accumulated WAA for this season up to 1991-09-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +034+ | 4.19 | Chuck McElroy | 83.7 | CHN |
| +048+ | 3.79 | Mark Eichhorn | 70.3 | ANA |
| +055+ | 3.5 | Bryan Harvey | 62.7 | ANA |
| +056+ | 3.48 | Bill Swift | 76.7 | SEA |
| +057+ | 3.45 | Mike Flanagan | 90.3 | BAL |
| +060+ | 3.42 | Todd Frohwirth | 74 | BAL |
| +068+ | 3.06 | John Habyan | 74 | NYA |
| +070+ | 2.98 | Mitch Williams | 72 | PHI |
| +080+ | 2.68 | Scott Radinsky | 60 | CHA |
| +082+ | 2.67 | Michael Jackson | 74.7 | SEA |
| +081+ | 2.67 | Carl Willis | 74.7 | MIN |
| +088+ | 2.61 | Melido Perez | 122 | CHA |
| +090+ | 2.57 | Rob Dibble | 73.3 | CIN |
| +094+ | 2.52 | Steve Howe | 47.7 | NYA |
| +099+ | 2.4 | Rick Aguilera | 60.3 | MIN |
| +101+ | 2.37 | Jeff Brantley | 78.3 | SFN |
| +102+ | 2.36 | Duane Ward | 94.7 | TOR |
| +103+ | 2.36 | Al Osuna | 71.7 | HOU |
| +106+ | 2.31 | Jeff Fassero | 46 | WAS |
| +111+ | 2.25 | Mike Maddux | 82 | SDN |
| +113+ | 2.25 | Alejandro Pena | 69.7 | TOT |
| +116+ | 2.21 | Lee Smith | 62.3 | SLN |
| +117+ | 2.2 | Jeff Innis | 71.3 | NYN |
| +124+ | 2.13 | Kent Mercker | 55 | ATL |
| +132+ | 1.97 | Jeff Shaw | 64.3 | CLE |
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