| 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 |
| Johnny Cueto | CIN | 3.63 | 201306160_MIL_CIN |
| Chris Sale | CHA | 2.89 | 201306140_CHA_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Clayton Richard | SDN | -4.07 | 201306160_ARI_SDN |
| Wily Peralta | MIL | -2.7 | 201306160_MIL_CIN |
| Roberto Hernandez | TBA | -2.18 | 201306160_KCA_TBA |
| Rick Porcello | DET | -1.94 | 201306140_DET_MIN |
| Edwin Jackson | CHN | -1.76 | 201306140_CHN_NYN |
Based on accumulated WAA for this season up to 2013-06-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.32 | Clayton Kershaw | 107.3 | LAN |
| +007+ | 4.35 | Hisashi Iwakuma | 100.3 | SEA |
| +008+ | 4.17 | Adam Wainwright | 103 | SLN |
| +009+ | 4.12 | Matt Harvey | 97 | NYN |
| +012+ | 3.9 | Felix Hernandez | 104.7 | SEA |
| +014+ | 3.62 | Jordan Zimmermann | 99.7 | WAS |
| +016+ | 3.54 | Cliff Lee | 102.3 | PHI |
| +017+ | 3.34 | Jeff Locke | 82.3 | PIT |
| +020+ | 3.24 | Shelby Miller | 81.3 | SLN |
| +021+ | 3.2 | Patrick Corbin | 86.7 | ARI |
| +022+ | 3.01 | Chris Sale | 85.3 | CHA |
| +025+ | 2.82 | Yu Darvish | 95.3 | TEX |
| +026+ | 2.8 | James Shields | 100 | KCA |
| +028+ | 2.77 | Stephen Strasburg | 79.3 | WAS |
| +030+ | 2.73 | Mike Minor | 90.7 | ATL |
| +031+ | 2.69 | Ervin Santana | 92 | KCA |
| +033+ | 2.58 | Travis Wood | 85 | CHN |
| +042+ | 2.36 | Hiroki Kuroda | 87.3 | NYA |
| +045+ | 2.3 | Mike Leake | 81.7 | CIN |
| +048+ | 2.23 | Hyun-Jin Ryu | 85.3 | LAN |
| +052+ | 2.14 | Anibal Sanchez | 81.7 | DET |
| +054+ | 2.07 | Bartolo Colon | 90.3 | OAK |
| +058+ | 1.92 | Jake Westbrook | 44 | SLN |
| +071+ | 1.82 | Alex Cobb | 83.7 | TBA |
| +072+ | 1.79 | Johnny Cueto | 43.3 | CIN |
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