| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago White Sox | CHA | 2.96 | 199109140_CHA_ANA |
| Los Angeles Dodgers | LAN | 2.47 | 199109150_LAN_ATL |
| New York Yankees | NYA | 1.71 | 199109130_BOS_NYA |
| Seattle Mariners | SEA | 1.24 | 199109130_SEA_KCA |
| San Diego Padres | SDN | 1.17 | 199109130_SDN_SFN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Detroit Tigers | DET | -8.01 | 199109130_DET_MIL |
| Oakland Athletics | OAK | -3.6 | 199109140_OAK_TOR |
| Texas Rangers | TEX | -2.92 | 199109130_MIN_TEX |
| Boston Red Sox | BOS | -2.77 | 199109130_BOS_NYA |
| Philadelphia Phillies | PHI | -1.82 | 199109140_PIT_PHI |
Based on accumulated WAA for this season up to 1991-09-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +035+ | 4.53 | Chuck McElroy | 90 | CHN |
| +040+ | 4.1 | Todd Frohwirth | 84 | BAL |
| +049+ | 3.73 | Mark Eichhorn | 74.7 | ANA |
| +057+ | 3.55 | Mike Flanagan | 94 | BAL |
| +060+ | 3.42 | Bryan Harvey | 69 | ANA |
| +061+ | 3.41 | John Habyan | 80 | NYA |
| +069+ | 3.28 | Bill Swift | 79.3 | SEA |
| +083+ | 2.92 | Mitch Williams | 76 | PHI |
| +088+ | 2.77 | Carl Willis | 80.3 | MIN |
| +092+ | 2.71 | Mike Maddux | 87 | SDN |
| +093+ | 2.69 | Duane Ward | 98.3 | TOR |
| +095+ | 2.65 | Scott Radinsky | 62 | CHA |
| +096+ | 2.59 | Rick Aguilera | 62.3 | MIN |
| +101+ | 2.55 | Alejandro Pena | 73 | TOT |
| +104+ | 2.5 | Jeff Brantley | 82 | SFN |
| +106+ | 2.49 | Melido Perez | 125.3 | CHA |
| +109+ | 2.44 | Lee Smith | 65 | SLN |
| +113+ | 2.43 | Jeff Fassero | 49.7 | WAS |
| +111+ | 2.43 | Jeff Innis | 74 | NYN |
| +118+ | 2.18 | Scott Terry | 80.3 | SLN |
| +119+ | 2.17 | Donn Pall | 61.3 | CHA |
| +121+ | 2.14 | Mike Magnante | 47 | KCA |
| +125+ | 2.1 | Tim Crews | 71.3 | LAN |
| +127+ | 2.04 | Steve Farr | 60.7 | NYA |
| +128+ | 2.03 | Rob Dibble | 76.7 | CIN |
_