| Team | Tm | Tier | Game |
|---|---|---|---|
| Montreal Expos | WAS | 3.85 | 199105110_WAS_SDN |
| Pittsburgh Pirates | PIT | 3.77 | 199105100_ATL_PIT |
| Kansas City Royals | KCA | 2.21 | 199105120_KCA_MIL |
| New York Yankees | NYA | 1.89 | 199105120_OAK_NYA |
| New York Mets | NYN | 1.82 | 199105100_NYN_SFN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | -3.39 | 199105100_SLN_HOU |
| Baltimore Orioles | BAL | -2.93 | 199105100_BAL_SEA |
| Boston Red Sox | BOS | -2.38 | 199105100_TEX_BOS |
| St. Louis Cardinals | SLN | -2.38 | 199105120_SLN_HOU |
| Oakland Athletics | OAK | -1.66 | 199105110_OAK_NYA |
Based on accumulated WAA for this season up to 1991-05-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +013+ | 1.84 | Paul Gibson | 25.7 | DET |
| +018+ | 1.69 | Roger McDowell | 26.7 | PHI |
| +024+ | 1.52 | Mark Eichhorn | 19.7 | ANA |
| +034+ | 1.33 | Bill Landrum | 15 | PIT |
| XXXXX | 1.18 | Russ Swan | 18.3 | SEA |
| XXXXX | 1.16 | Juan Berenguer | 20.7 | ATL |
| XXXXX | 1.15 | Donn Pall | 14 | CHA |
| 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 | 0.94 | Darren Holmes | 24 | MIL |
| XXXXX | 0.91 | Kent Mercker | 15.3 | ATL |
| XXXXX | 0.91 | Mark Lee | 18.7 | MIL |
| XXXXX | 0.89 | Jeff Russell | 14.7 | TEX |
| XXXXX | 0.87 | Michael Jackson | 22 | SEA |
| XXXXX | 0.84 | Mike Hartley | 18.7 | LAN |
| XXXXX | 0.83 | Mike Henneman | 21.3 | DET |
| XXXXX | 0.83 | Jeff Gray | 19 | BOS |
| XXXXX | 0.83 | John Franco | 12 | NYN |
| XXXXX | 0.82 | Bob Milacki | 11.3 | BAL |
| XXXXX | 0.81 | Rob Dibble | 16.3 | CIN |
| XXXXX | 0.81 | Jeff Montgomery | 16 | KCA |
| XXXXX | 0.79 | Jim Acker | 23.3 | TOR |
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