| Team | Tm | Tier | Game |
|---|---|---|---|
| Montreal Expos | WAS | 4.13 | 199105130_WAS_LAN |
| Kansas City Royals | KCA | 2.21 | 199105120_KCA_MIL |
| New York Yankees | NYA | 2.07 | 199105130_OAK_NYA |
| Pittsburgh Pirates | PIT | 1.97 | 199105120_ATL_PIT |
| New York Mets | NYN | 1.43 | 199105130_NYN_SDN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | -3.38 | 199105110_SLN_HOU |
| Baltimore Orioles | BAL | -2.88 | 199105110_BAL_SEA |
| St. Louis Cardinals | SLN | -2.38 | 199105120_SLN_HOU |
| Boston Red Sox | BOS | -2.24 | 199105130_CHA_BOS |
| Oakland Athletics | OAK | -1.78 | 199105130_OAK_NYA |
Based on accumulated WAA for this season up to 1991-05-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +012+ | 1.88 | Paul Gibson | 26 | DET |
| +019+ | 1.73 | Roger McDowell | 27.3 | PHI |
| +023+ | 1.52 | Mark Eichhorn | 19.7 | ANA |
| +033+ | 1.32 | Bill Landrum | 15 | PIT |
| XXXXX | 1.23 | Donn Pall | 15 | CHA |
| XXXXX | 1.18 | Russ Swan | 18.3 | SEA |
| XXXXX | 1.16 | Juan Berenguer | 20.7 | ATL |
| XXXXX | 1.12 | Scott Terry | 19.7 | SLN |
| XXXXX | 1.09 | Jim Clancy | 19.7 | HOU |
| XXXXX | 1.05 | Bryan Harvey | 14.3 | ANA |
| XXXXX | 0.98 | Alejandro Pena | 13.7 | NYN |
| XXXXX | 0.95 | Bill Swift | 13.3 | SEA |
| XXXXX | 0.93 | Darren Holmes | 24 | MIL |
| XXXXX | 0.91 | Mark Lee | 18.7 | MIL |
| XXXXX | 0.91 | Kent Mercker | 15.3 | ATL |
| XXXXX | 0.89 | Jeff Robinson | 19.7 | ANA |
| XXXXX | 0.89 | Jeff Russell | 14.7 | TEX |
| XXXXX | 0.86 | Michael Jackson | 22 | SEA |
| XXXXX | 0.84 | Mike Henneman | 21.3 | DET |
| XXXXX | 0.84 | Mike Hartley | 18.7 | LAN |
| XXXXX | 0.84 | John Franco | 12 | NYN |
| XXXXX | 0.82 | Lee Guetterman | 14 | NYA |
| XXXXX | 0.82 | Bob Milacki | 11.3 | BAL |
| XXXXX | 0.81 | Jeff Montgomery | 16 | KCA |
| XXXXX | 0.81 | Rob Dibble | 16.3 | CIN |
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