| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 3.84 | 201305310_CHA_OAK |
| San Francisco Giants | SFN | 3.81 | 201305300_OAK_SFN |
| Colorado Rockies | COL | 1.98 | 201305290_HOU_COL |
| Chicago White Sox | CHA | 1.16 | 201305290_CHA_CHN |
| Arizona Diamondbacks | ARI | 0.93 | 201305300_ARI_TEX |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Houston Astros | HOU | -10.4 | 201305310_HOU_ANA |
| Chicago Cubs | CHN | -2.82 | 201305300_CHA_CHN |
| Miami Marlins | MIA | -1.59 | 201305310_NYN_MIA |
| Baltimore Orioles | BAL | -1.37 | 201305300_WAS_BAL |
| Kansas City Royals | KCA | -0.7 | 201305300_KCA_SLN |
Based on accumulated WAA for this season up to 2013-05-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +037+ | 2.05 | Robbie Ross | 24.3 | TEX |
| +038+ | 2.05 | Mark Melancon | 29 | PIT |
| +040+ | 2.03 | Tanner Scheppers | 26.3 | TEX |
| +045+ | 1.97 | Rex Brothers | 23.7 | COL |
| +049+ | 1.91 | Justin Wilson | 32 | PIT |
| +054+ | 1.82 | Jesse Crain | 24 | CHA |
| +057+ | 1.81 | Tom Wilhelmsen | 24 | SEA |
| +060+ | 1.77 | Luke Gregerson | 23.7 | SDN |
| +070+ | 1.65 | Ryan Pressly | 27 | MIN |
| +071+ | 1.65 | Jason Grilli | 24.7 | PIT |
| +078+ | 1.52 | Tommy Hunter | 30 | BAL |
| +080+ | 1.52 | James Russell | 20.7 | CHN |
| +082+ | 1.49 | Matt Reynolds | 23.3 | ARI |
| +087+ | 1.41 | Sam LeCure | 22.3 | CIN |
| +089+ | 1.41 | Sean Doolittle | 24.3 | OAK |
| +094+ | 1.36 | Chad Gaudin | 30.7 | SFN |
| +098+ | 1.33 | Brett Cecil | 28.3 | TOR |
| +101+ | 1.32 | Jonathan Papelbon | 20.7 | PHI |
| +104+ | 1.28 | Cory Gearrin | 25 | ATL |
| +105+ | 1.27 | Drew Smyly | 32.7 | DET |
| +107+ | 1.26 | Joe Smith | 18 | CLE |
| +109+ | 1.26 | Adam Ottavino | 27.3 | COL |
| XXXXX | 1.23 | Jerry Blevins | 24.7 | OAK |
| XXXXX | 1.22 | Grant Balfour | 22.3 | OAK |
| XXXXX | 1.21 | Darren O'Day | 24.3 | BAL |
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