| Team | Tm | Tier | Game |
|---|---|---|---|
| Montreal Expos | WAS | 4.15 | 199105080_SFN_WAS |
| Pittsburgh Pirates | PIT | 3.77 | 199105100_ATL_PIT |
| Kansas City Royals | KCA | 2.1 | 199105100_KCA_MIL |
| New York Mets | NYN | 2.02 | 199105080_LAN_NYN |
| New York Yankees | NYA | 1.5 | 199105100_OAK_NYA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | -3.57 | 199105080_CHN_HOU |
| Baltimore Orioles | BAL | -2.93 | 199105100_BAL_SEA |
| Boston Red Sox | BOS | -2.7 | 199105090_TEX_BOS |
| Detroit Tigers | DET | -1.21 | 199105080_KCA_DET |
| San Francisco Giants | SFN | -0.78 | 199105080_SFN_WAS |
Based on accumulated WAA for this season up to 1991-05-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +012+ | 1.81 | Paul Gibson | 25.7 | DET |
| +017+ | 1.59 | Roger McDowell | 23.3 | PHI |
| +022+ | 1.5 | Mark Eichhorn | 19.7 | ANA |
| +033+ | 1.32 | Bill Landrum | 15 | PIT |
| XXXXX | 1.13 | Donn Pall | 14 | CHA |
| XXXXX | 1.09 | Dwayne Henry | 15 | HOU |
| XXXXX | 1.08 | Russ Swan | 17.3 | SEA |
| XXXXX | 1.05 | Scott Terry | 19 | SLN |
| XXXXX | 0.99 | Jim Clancy | 18.7 | HOU |
| XXXXX | 0.95 | Bryan Harvey | 13.3 | ANA |
| XXXXX | 0.9 | Randy Tomlin | 27 | PIT |
| XXXXX | 0.84 | Mike Henneman | 19.3 | DET |
| XXXXX | 0.84 | Mark Lee | 18 | MIL |
| XXXXX | 0.84 | Jeff Russell | 14.3 | TEX |
| XXXXX | 0.83 | Juan Berenguer | 17 | ATL |
| XXXXX | 0.82 | Jeff Gray | 19 | BOS |
| XXXXX | 0.81 | Alejandro Pena | 11.7 | NYN |
| XXXXX | 0.81 | Bob Milacki | 11.3 | BAL |
| XXXXX | 0.79 | Kent Mercker | 14 | ATL |
| XXXXX | 0.78 | Mike Hartley | 15.7 | LAN |
| XXXXX | 0.76 | Chuck McElroy | 11 | CHN |
| XXXXX | 0.75 | Al Osuna | 11 | HOU |
| XXXXX | 0.74 | Jeff Montgomery | 13 | KCA |
| XXXXX | 0.72 | Darren Holmes | 21.7 | MIL |
| XXXXX | 0.69 | Jim Acker | 22.3 | TOR |
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