| Team | Tm | Tier | Game |
|---|---|---|---|
| Boston Red Sox | BOS | 8.51 | 200905160_BOS_SEA |
| Oakland Athletics | OAK | 2.91 | 200905160_OAK_DET |
| Chicago White Sox | CHA | 1.28 | 200905170_CHA_TOR |
| Toronto Blue Jays | TOR | 1.13 | 200905180_CHA_TOR |
| New York Mets | NYN | 1.13 | 200905180_NYN_LAN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Washington Nationals | WAS | -4.64 | 200905170_PHI_WAS |
| Seattle Mariners | SEA | -3.59 | 200905180_ANA_SEA |
| Texas Rangers | TEX | -2.44 | 200905160_ANA_TEX |
| Baltimore Orioles | BAL | -1.49 | 200905160_BAL_KCA |
| Colorado Rockies | COL | -1.44 | 200905180_COL_ATL |
Based on accumulated WAA for this season up to 2009-05-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +038+ | 1.81 | Ramon Ramirez | 21 | BOS |
| +041+ | 1.78 | Andrew Bailey | 23.3 | OAK |
| +046+ | 1.67 | Lance Cormier | 29 | TBA |
| +049+ | 1.62 | Brian Stokes | 17.3 | NYN |
| +051+ | 1.61 | Mark DiFelice | 19 | MIL |
| +052+ | 1.59 | Heath Bell | 15 | SDN |
| +053+ | 1.56 | Ramon Troncoso | 24.7 | LAN |
| +054+ | 1.56 | Manny Delcarmen | 18.7 | BOS |
| +057+ | 1.55 | Francisco Rodriguez | 18.7 | NYN |
| +063+ | 1.48 | Jamey Wright | 21.7 | KCA |
| +066+ | 1.45 | Renyel Pinto | 17.7 | MIA |
| +073+ | 1.38 | Jonathan Papelbon | 17 | BOS |
| +074+ | 1.38 | Jonathan Broxton | 19 | LAN |
| +075+ | 1.37 | Juan Cruz | 18.7 | KCA |
| +078+ | 1.34 | David Aardsma | 18.7 | SEA |
| +079+ | 1.34 | Darren Oliver | 18.3 | ANA |
| +081+ | 1.33 | Chris Sampson | 24.3 | HOU |
| +083+ | 1.32 | Ryan Franklin | 16.3 | SLN |
| +087+ | 1.27 | Danys Baez | 21.3 | BAL |
| XXXXX | 1.25 | Jason Frasor | 14 | TOR |
| XXXXX | 1.24 | Octavio Dotel | 13.3 | CHA |
| XXXXX | 1.21 | Tony Pena | 17.3 | ARI |
| XXXXX | 1.19 | Michael Wuertz | 19.7 | OAK |
| XXXXX | 1.17 | Scott Downs | 19.3 | TOR |
| XXXXX | 1.17 | Rafael Soriano | 17 | ATL |
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