| Team | Tm | Tier | Game |
|---|---|---|---|
| Kansas City Royals | KCA | 4.28 | 199104220_KCA_CLE |
| Los Angeles Dodgers | LAN | 2.2 | 199104230_ATL_LAN |
| New York Yankees | NYA | 1.49 | 199104220_DET_NYA |
| New York Mets | NYN | 0.92 | 199104210_NYN_WAS |
| Cleveland Indians | CLE | 0.88 | 199104230_KCA_CLE |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | -8.61 | 199104220_CIN_HOU |
| Boston Red Sox | BOS | -1.64 | 199104220_TOR_BOS |
| Seattle Mariners | SEA | -1.23 | 199104210_OAK_SEA |
| California Angels | ANA | -1.01 | 199104210_MIN_ANA |
| Toronto Blue Jays | TOR | -1 | 199104220_TOR_BOS |
Based on accumulated WAA for this season up to 1991-04-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| XXXXX | 0.92 | Roger McDowell | 13.3 | PHI |
| XXXXX | 0.83 | Mark Lee | 10 | MIL |
| XXXXX | 0.81 | Mike Henneman | 9.7 | DET |
| XXXXX | 0.79 | Mike Flanagan | 11.3 | BAL |
| XXXXX | 0.72 | Russ Swan | 8.3 | SEA |
| XXXXX | 0.7 | Scott Terry | 8 | SLN |
| XXXXX | 0.67 | Dan Petry | 8 | DET |
| XXXXX | 0.67 | Paul Gibson | 8 | DET |
| XXXXX | 0.61 | Mark Eichhorn | 9.7 | ANA |
| XXXXX | 0.59 | Jeff Russell | 7 | TEX |
| XXXXX | 0.58 | Steve Chitren | 6.7 | OAK |
| XXXXX | 0.58 | John Habyan | 9 | NYA |
| XXXXX | 0.58 | Steve Olin | 9.3 | CLE |
| XXXXX | 0.57 | Bill Landrum | 6.7 | PIT |
| XXXXX | 0.57 | Michael Jackson | 9 | SEA |
| XXXXX | 0.56 | Scott Ruskin | 6.3 | WAS |
| XXXXX | 0.54 | Mike Stanton | 6.3 | ATL |
| XXXXX | 0.54 | Bryan Harvey | 6.3 | ANA |
| XXXXX | 0.53 | Donn Pall | 6.3 | CHA |
| XXXXX | 0.51 | Rich Gossage | 6 | TEX |
| XXXXX | 0.5 | Doug Simons | 8.3 | NYN |
| XXXXX | 0.49 | Mark Williamson | 8 | BAL |
| XXXXX | 0.49 | Jim Acker | 13 | TOR |
| XXXXX | 0.48 | Jeff Montgomery | 5.3 | KCA |
| XXXXX | 0.48 | John Cerutti | 10.7 | DET |
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