| Starter | Tm | Tier | Game |
|---|---|---|---|
| Clayton Kershaw | LAN | 12.62 | 201306150_LAN_PIT |
| Jordan Zimmermann | WAS | 7.57 | 201306150_WAS_CLE |
| Felix Hernandez | SEA | 5.23 | 201306150_SEA_OAK |
| James Shields | KCA | 4.32 | 201306170_KCA_CLE |
| Johnny Cueto | CIN | 3.63 | 201306160_MIL_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Edinson Volquez | SDN | -4.97 | 201306170_SDN_SFN |
| Wily Peralta | MIL | -2.7 | 201306160_MIL_CIN |
| Jake Arrieta | BAL | -2.38 | 201306170_BAL_DET |
| Roberto Hernandez | TBA | -2.18 | 201306160_KCA_TBA |
| Barry Zito | SFN | -1.39 | 201306170_SDN_SFN |
Based on accumulated WAA for this season up to 2013-06-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.3 | Clayton Kershaw | 107.3 | LAN |
| +007+ | 4.34 | Hisashi Iwakuma | 100.3 | SEA |
| +008+ | 4.15 | Adam Wainwright | 103 | SLN |
| +009+ | 4.12 | Matt Harvey | 97 | NYN |
| +012+ | 3.9 | Felix Hernandez | 104.7 | SEA |
| +013+ | 3.68 | Shelby Miller | 86.3 | SLN |
| +015+ | 3.6 | Jordan Zimmermann | 99.7 | WAS |
| +016+ | 3.52 | Cliff Lee | 102.3 | PHI |
| +018+ | 3.49 | Patrick Corbin | 94.7 | ARI |
| +019+ | 3.33 | Jeff Locke | 82.3 | PIT |
| +022+ | 3.12 | James Shields | 106 | KCA |
| +024+ | 3 | Chris Sale | 85.3 | CHA |
| +027+ | 2.8 | Yu Darvish | 95.3 | TEX |
| +028+ | 2.76 | Stephen Strasburg | 79.3 | WAS |
| +029+ | 2.71 | Mike Minor | 90.7 | ATL |
| +030+ | 2.7 | Mike Leake | 88.7 | CIN |
| +033+ | 2.66 | Ervin Santana | 92 | KCA |
| +036+ | 2.58 | Travis Wood | 92 | CHN |
| +043+ | 2.34 | Hiroki Kuroda | 87.3 | NYA |
| +048+ | 2.22 | Hyun-Jin Ryu | 85.3 | LAN |
| +054+ | 2.12 | Anibal Sanchez | 81.7 | DET |
| +055+ | 2.06 | Bartolo Colon | 90.3 | OAK |
| +065+ | 1.92 | Jake Westbrook | 44 | SLN |
| +071+ | 1.8 | Alex Cobb | 83.7 | TBA |
| +072+ | 1.79 | Johnny Cueto | 43.3 | CIN |
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