| Team | Tm | Tier | Game |
|---|---|---|---|
| Seattle Mariners | SEA | 3.63 | 199107310_BAL_SEA |
| Toronto Blue Jays | TOR | 2.31 | 199107290_CHA_TOR |
| Chicago White Sox | CHA | 1.79 | 199107310_TEX_CHA |
| New York Mets | NYN | 1.35 | 199107310_NYN_LAN |
| Pittsburgh Pirates | PIT | 1.17 | 199107291_PIT_ATL |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Baltimore Orioles | BAL | -3.74 | 199107300_BAL_SEA |
| Texas Rangers | TEX | -2.72 | 199107290_TEX_BOS |
| Kansas City Royals | KCA | -1.96 | 199107300_KCA_MIL |
| Boston Red Sox | BOS | -1.89 | 199107310_OAK_BOS |
| Milwaukee Brewers | MIL | -1.77 | 199107300_KCA_MIL |
Based on accumulated WAA for this season up to 1991-07-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +031+ | 3.59 | Mark Eichhorn | 55 | ANA |
| +040+ | 3.25 | Chuck McElroy | 61.7 | CHN |
| +041+ | 3.18 | Mike Flanagan | 74 | BAL |
| +061+ | 2.64 | Mike Maddux | 63.3 | SDN |
| +064+ | 2.57 | Steve Farr | 46.3 | NYA |
| +066+ | 2.54 | Juan Berenguer | 57.3 | ATL |
| +070+ | 2.41 | Scott Terry | 55.7 | SLN |
| +074+ | 2.34 | Bryan Harvey | 46 | ANA |
| +075+ | 2.3 | Jeff Gray | 61.7 | BOS |
| +078+ | 2.25 | Rob Dibble | 49.3 | CIN |
| +081+ | 2.23 | Steve Howe | 42.7 | NYA |
| +083+ | 2.17 | Duane Ward | 69.7 | TOR |
| +085+ | 2.16 | Kent Mercker | 46.3 | ATL |
| +084+ | 2.16 | Todd Frohwirth | 46.7 | BAL |
| +091+ | 2.1 | John Habyan | 55 | NYA |
| +092+ | 2.09 | Al Osuna | 52.7 | HOU |
| +095+ | 2.02 | Bill Swift | 56.3 | SEA |
| +096+ | 1.93 | Mike Henneman | 64.3 | DET |
| +101+ | 1.85 | Carl Willis | 50 | MIN |
| +102+ | 1.85 | Jeff Fassero | 32 | WAS |
| +113+ | 1.76 | Lee Guetterman | 46.7 | NYA |
| +121+ | 1.68 | Jeff Innis | 50 | NYN |
| +124+ | 1.61 | Lee Smith | 49.3 | SLN |
| +126+ | 1.57 | Russ Swan | 56 | SEA |
| +127+ | 1.57 | Tom Henke | 28.7 | TOR |
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