| Team | Tm | Tier | Game |
|---|---|---|---|
| San Francisco Giants | SFN | 3.74 | 201305180_SFN_COL |
| Atlanta Braves | ATL | 2.77 | 201305170_LAN_ATL |
| Cleveland Indians | CLE | 2.44 | 201305180_SEA_CLE |
| Washington Nationals | WAS | 2.32 | 201305180_WAS_SDN |
| Cincinnati Reds | CIN | 1.2 | 201305170_CIN_PHI |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | -9.24 | 201305170_HOU_PIT |
| Toronto Blue Jays | TOR | -2.63 | 201305180_TOR_NYA |
| Texas Rangers | TEX | -2.17 | 201305160_DET_TEX |
| Miami Marlins | MIA | -1.58 | 201305180_ARI_MIA |
| LA Angels of Anaheim | ANA | -1.45 | 201305180_CHA_ANA |
Based on accumulated WAA for this season up to 2013-05-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +033+ | 1.82 | Tanner Scheppers | 21.7 | TEX |
| +042+ | 1.63 | Mark Melancon | 22 | PIT |
| +050+ | 1.55 | Justin Wilson | 25.7 | PIT |
| +051+ | 1.54 | Robbie Ross | 18.7 | TEX |
| +054+ | 1.5 | Rex Brothers | 18.3 | COL |
| +058+ | 1.47 | Tom Wilhelmsen | 18 | SEA |
| +061+ | 1.43 | Cory Gearrin | 19.7 | ATL |
| +062+ | 1.42 | Ryan Webb | 24.3 | MIA |
| +066+ | 1.41 | James Russell | 17.3 | CHN |
| +067+ | 1.38 | Jesse Crain | 19.3 | CHA |
| +075+ | 1.35 | Matt Reynolds | 19.7 | ARI |
| +077+ | 1.33 | Tommy Hunter | 23.3 | BAL |
| +078+ | 1.33 | Sean Doolittle | 19 | OAK |
| +079+ | 1.32 | Jason Grilli | 18.7 | PIT |
| +083+ | 1.28 | Luke Gregerson | 18 | SDN |
| +084+ | 1.27 | Bobby Parnell | 18.3 | NYN |
| +086+ | 1.26 | Jim Henderson | 18 | MIL |
| +085+ | 1.26 | Drew Smyly | 28 | DET |
| XXXXX | 1.25 | Jonathan Papelbon | 17.7 | PHI |
| XXXXX | 1.19 | Adam Warren | 19.7 | NYA |
| XXXXX | 1.1 | Steve Delabar | 23 | TOR |
| XXXXX | 1.1 | Sam LeCure | 19 | CIN |
| XXXXX | 1.08 | Joaquin Benoit | 19 | DET |
| XXXXX | 1.06 | Joe Smith | 13.7 | CLE |
| XXXXX | 1.05 | Michael Dunn | 20.3 | MIA |
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