| Team | Tm | Tier | Game |
|---|---|---|---|
| Boston Red Sox | BOS | 9.81 | 200905220_NYN_BOS |
| Oakland Athletics | OAK | 1.71 | 200905230_ARI_OAK |
| Chicago White Sox | CHA | 1.29 | 200905210_MIN_CHA |
| New York Mets | NYN | 1.23 | 200905230_NYN_BOS |
| Toronto Blue Jays | TOR | 1.11 | 200905220_TOR_ATL |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Washington Nationals | WAS | -4.93 | 200905220_BAL_WAS |
| Seattle Mariners | SEA | -3.11 | 200905210_ANA_SEA |
| Texas Rangers | TEX | -3.11 | 200905210_TEX_DET |
| Baltimore Orioles | BAL | -2.72 | 200905220_BAL_WAS |
| Kansas City Royals | KCA | -1.57 | 200905230_KCA_SLN |
Based on accumulated WAA for this season up to 2009-05-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +036+ | 1.93 | Ramon Ramirez | 22.7 | BOS |
| +043+ | 1.81 | Ramon Troncoso | 27.7 | LAN |
| +045+ | 1.75 | Jonathan Broxton | 23 | LAN |
| +047+ | 1.72 | Francisco Rodriguez | 20.7 | NYN |
| +049+ | 1.69 | Lance Cormier | 30 | TBA |
| +048+ | 1.69 | Heath Bell | 18.3 | SDN |
| +050+ | 1.68 | Mark DiFelice | 20 | MIL |
| +055+ | 1.63 | Frank Francisco | 15.7 | TEX |
| +056+ | 1.62 | Andrew Bailey | 28.7 | OAK |
| +061+ | 1.59 | Brian Stokes | 17.3 | NYN |
| +065+ | 1.55 | Tony Pena | 21.3 | ARI |
| +066+ | 1.55 | Manny Delcarmen | 19 | BOS |
| +074+ | 1.49 | David Aardsma | 20.7 | SEA |
| +079+ | 1.44 | Jason Frasor | 16 | TOR |
| +081+ | 1.44 | Darren Oliver | 19.7 | ANA |
| +080+ | 1.44 | Chris Sampson | 28 | HOU |
| +092+ | 1.31 | Octavio Dotel | 14.3 | CHA |
| +093+ | 1.31 | Arthur Rhodes | 15 | CIN |
| +094+ | 1.31 | Rafael Soriano | 18.7 | ATL |
| +102+ | 1.26 | D.J. Carrasco | 29.7 | CHA |
| +103+ | 1.26 | Trevor Hoffman | 12 | MIL |
| XXXXX | 1.24 | Jonathan Papelbon | 20 | BOS |
| XXXXX | 1.22 | Michael Wuertz | 22.7 | OAK |
| XXXXX | 1.21 | Ryan Franklin | 17.7 | SLN |
| XXXXX | 1.17 | Bobby Parnell | 19.3 | NYN |
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