| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cliff Lee | PHI | 7.72 | 201306020_MIL_PHI |
| Hiroki Kuroda | NYA | 4.45 | 201306020_BOS_NYA |
| James Shields | KCA | 4.1 | 201306010_KCA_TEX |
| Justin Verlander | DET | 3.34 | 201306010_DET_BAL |
| Matt Harvey | NYN | 3.16 | 201306020_NYN_MIA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Blanton | ANA | -4.68 | 201306030_HOU_ANA |
| Ubaldo Jimenez | CLE | -4.24 | 201306010_TBA_CLE |
| Rick Porcello | DET | -3.35 | 201306020_DET_BAL |
| Edinson Volquez | SDN | -2.76 | 201306020_TOR_SDN |
| Wily Peralta | MIL | -1.9 | 201306010_MIL_PHI |
Based on accumulated WAA for this season up to 2013-06-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 4.43 | Clayton Kershaw | 87.3 | LAN |
| +004+ | 4.35 | Clay Buchholz | 77.7 | BOS |
| +006+ | 3.47 | Hisashi Iwakuma | 80.3 | SEA |
| +007+ | 3.47 | Matt Harvey | 83 | NYN |
| +008+ | 3.45 | Shelby Miller | 69.3 | SLN |
| +009+ | 3.37 | Adam Wainwright | 89 | SLN |
| +010+ | 3.28 | Cliff Lee | 88.3 | PHI |
| +012+ | 3.19 | Patrick Corbin | 74.3 | ARI |
| +013+ | 3.12 | Felix Hernandez | 83.3 | SEA |
| +015+ | 3.06 | Jordan Zimmermann | 79.7 | WAS |
| +020+ | 2.62 | Matt Moore | 62 | TBA |
| +022+ | 2.56 | Stephen Strasburg | 74.3 | WAS |
| +023+ | 2.54 | Chris Sale | 70 | CHA |
| +024+ | 2.54 | Mike Minor | 72.7 | ATL |
| +025+ | 2.53 | Jeff Locke | 64 | PIT |
| +028+ | 2.4 | James Shields | 86 | KCA |
| +030+ | 2.38 | Hiroki Kuroda | 73 | NYA |
| +033+ | 2.28 | Yu Darvish | 81.3 | TEX |
| +041+ | 2.1 | Travis Wood | 72 | CHN |
| +043+ | 2.08 | Lance Lynn | 75 | SLN |
| +047+ | 2.05 | Mike Leake | 68.7 | CIN |
| +049+ | 1.99 | Derek Holland | 73.7 | TEX |
| +053+ | 1.92 | Jeff Samardzija | 79 | CHN |
| +059+ | 1.82 | Jerome Williams | 59.3 | ANA |
| +060+ | 1.82 | Mat Latos | 77.7 | CIN |
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