| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jordan Zimmermann | WAS | 6.75 | 201305240_PHI_WAS |
| Cliff Lee | PHI | 5.01 | 201305220_PHI_MIA |
| Hiroki Kuroda | NYA | 5.01 | 201305220_NYA_BAL |
| James Shields | KCA | 4.89 | 201305220_KCA_HOU |
| Justin Verlander | DET | 4.67 | 201305220_DET_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Blanton | ANA | -4.92 | 201305230_ANA_KCA |
| Ubaldo Jimenez | CLE | -3.53 | 201305220_DET_CLE |
| Rick Porcello | DET | -3.38 | 201305230_MIN_DET |
| Jordan Lyles | HOU | -2.99 | 201305220_KCA_HOU |
| Roberto Hernandez | TBA | -2.25 | 201305240_NYA_TBA |
Based on accumulated WAA for this season up to 2013-05-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 4.62 | Clayton Kershaw | 73.3 | LAN |
| +003+ | 3.97 | Jordan Zimmermann | 73.7 | WAS |
| +004+ | 3.84 | Clay Buchholz | 72.7 | BOS |
| +005+ | 3.53 | Patrick Corbin | 62.3 | ARI |
| +007+ | 3.3 | Matt Harvey | 70 | NYN |
| +008+ | 3.18 | Felix Hernandez | 69.7 | SEA |
| +009+ | 2.95 | Shelby Miller | 57 | SLN |
| +015+ | 2.67 | Cliff Lee | 72.7 | PHI |
| +016+ | 2.67 | James Shields | 73 | KCA |
| +018+ | 2.66 | Adam Wainwright | 72 | SLN |
| +020+ | 2.52 | Travis Wood | 60.3 | CHN |
| +021+ | 2.5 | Hisashi Iwakuma | 64.7 | SEA |
| +022+ | 2.32 | A.J. Burnett | 70 | PIT |
| +023+ | 2.25 | Anibal Sanchez | 64.3 | DET |
| +024+ | 2.22 | Matt Moore | 55 | TBA |
| +031+ | 2.05 | Stephen Strasburg | 64.3 | WAS |
| +040+ | 1.84 | Hiroki Kuroda | 60.7 | NYA |
| +041+ | 1.83 | Yu Darvish | 66.7 | TEX |
| +043+ | 1.79 | Alex Cobb | 59.3 | TBA |
| +049+ | 1.66 | Mike Minor | 58.3 | ATL |
| +053+ | 1.62 | Madison Bumgarner | 65.3 | SFN |
| +056+ | 1.58 | Trevor Cahill | 64 | ARI |
| +057+ | 1.57 | Scott Feldman | 54.7 | CHN |
| +062+ | 1.55 | Jeff Locke | 52.7 | PIT |
| +069+ | 1.46 | Jerome Williams | 46.3 | ANA |
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