| Team | Tm | Tier | Game |
|---|---|---|---|
| Tampa Bay Rays | TBA | 4.59 | 201209020_TBA_TOR |
| Cincinnati Reds | CIN | 3.32 | 201209040_PHI_CIN |
| Texas Rangers | TEX | 2.29 | 201209030_TEX_KCA |
| Oakland Athletics | OAK | 1.84 | 201209020_BOS_OAK |
| Washington Nationals | WAS | 1.82 | 201209040_CHN_WAS |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Milwaukee Brewers | MIL | -5.35 | 201209020_PIT_MIL |
| Houston Astros | HOU | -2.85 | 201209030_HOU_PIT |
| New York Mets | NYN | -2.59 | 201209020_NYN_MIA |
| Boston Red Sox | BOS | -2.25 | 201209020_BOS_OAK |
| Chicago Cubs | CHN | -1.43 | 201209040_CHN_WAS |
Based on accumulated WAA for this season up to 2012-09-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +022+ | 4.86 | Fernando Rodney | 63.3 | TBA |
| +031+ | 4.31 | Aroldis Chapman | 66 | CIN |
| +063+ | 3.2 | Robbie Ross | 60.7 | TEX |
| +065+ | 3.13 | Craig Kimbrel | 49 | ATL |
| +072+ | 2.93 | Pedro Strop | 59 | BAL |
| +073+ | 2.92 | Vinnie Pestano | 59.7 | CLE |
| +087+ | 2.67 | Josh Roenicke | 81 | COL |
| +088+ | 2.66 | Craig Stammen | 76.7 | WAS |
| +089+ | 2.64 | Rafael Soriano | 54.7 | NYA |
| +090+ | 2.64 | Mitchell Boggs | 62 | SLN |
| +098+ | 2.52 | Kelvin Herrera | 71.7 | KCA |
| +104+ | 2.42 | Ernesto Frieri | 54.3 | TOT |
| +110+ | 2.37 | David Robertson | 47.3 | NYA |
| +112+ | 2.35 | Luke Gregerson | 62.7 | SDN |
| +113+ | 2.34 | David Hernandez | 60 | ARI |
| +117+ | 2.29 | Jared Burton | 50.7 | MIN |
| +119+ | 2.28 | Sergio Romo | 44.7 | SFN |
| +120+ | 2.26 | Wade Davis | 58 | TBA |
| +123+ | 2.22 | Jason Grilli | 50 | PIT |
| +125+ | 2.21 | Casey Janssen | 52.7 | TOR |
| +128+ | 2.18 | Wilton Lopez | 53.7 | HOU |
| +130+ | 2.15 | Ryan Cook | 57.3 | OAK |
| +131+ | 2.15 | Brayan Villarreal | 47 | DET |
| +134+ | 2.13 | Tom Wilhelmsen | 65.3 | SEA |
| +135+ | 2.11 | Darren O'Day | 54.7 | BAL |
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