| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cliff Lee | PHI | 6.59 | 201306180_WAS_PHI |
| Hisashi Iwakuma | SEA | 4.73 | 201306160_SEA_OAK |
| James Shields | KCA | 4.32 | 201306170_KCA_CLE |
| Johnny Cueto | CIN | 3.63 | 201306160_MIL_CIN |
| Matt Harvey | NYN | 3.4 | 201306181_NYN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Edinson Volquez | SDN | -4.97 | 201306170_SDN_SFN |
| Joe Blanton | ANA | -4.86 | 201306180_SEA_ANA |
| Jeff Francis | COL | -3.91 | 201306180_COL_TOR |
| Mike Pelfrey | MIN | -3.71 | 201306180_CHA_MIN |
| Wily Peralta | MIL | -2.7 | 201306160_MIL_CIN |
Based on accumulated WAA for this season up to 2013-06-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.28 | Clayton Kershaw | 107.3 | LAN |
| +007+ | 4.31 | Hisashi Iwakuma | 100.3 | SEA |
| +008+ | 4.1 | Matt Harvey | 104 | NYN |
| +012+ | 3.93 | Adam Wainwright | 110 | SLN |
| +013+ | 3.86 | Felix Hernandez | 104.7 | SEA |
| +014+ | 3.82 | Cliff Lee | 110.3 | PHI |
| +015+ | 3.66 | Shelby Miller | 86.3 | SLN |
| +016+ | 3.59 | Jordan Zimmermann | 99.7 | WAS |
| +018+ | 3.47 | Patrick Corbin | 94.7 | ARI |
| +020+ | 3.32 | Jeff Locke | 82.3 | PIT |
| +022+ | 3.12 | James Shields | 106 | KCA |
| +023+ | 3.1 | Ervin Santana | 99 | KCA |
| +025+ | 2.99 | Chris Sale | 85.3 | CHA |
| +029+ | 2.75 | Stephen Strasburg | 79.3 | WAS |
| +031+ | 2.69 | Mike Leake | 88.7 | CIN |
| +030+ | 2.69 | Mike Minor | 90.7 | ATL |
| +034+ | 2.57 | Travis Wood | 92 | CHN |
| +038+ | 2.48 | Yu Darvish | 101.3 | TEX |
| +045+ | 2.32 | Hiroki Kuroda | 87.3 | NYA |
| +050+ | 2.2 | Hyun-Jin Ryu | 85.3 | LAN |
| +052+ | 2.11 | Anibal Sanchez | 81.7 | DET |
| +056+ | 2.05 | Bartolo Colon | 90.3 | OAK |
| +065+ | 1.91 | Jake Westbrook | 44 | SLN |
| +072+ | 1.81 | Alex Cobb | 83.7 | TBA |
| +073+ | 1.78 | Johnny Cueto | 43.3 | CIN |
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