| Starter | Tm | Tier | Game |
|---|---|---|---|
| Patrick Corbin | ARI | 3.88 | 201308030_ARI_BOS |
| Madison Bumgarner | SFN | 2.51 | 201308020_SFN_TBA |
| Mike Leake | CIN | 2.16 | 201308040_SLN_CIN |
| Cliff Lee | PHI | 1.8 | 201308040_ATL_PHI |
| Travis Wood | CHN | 1.36 | 201308020_LAN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ian Kennedy | SDN | -3.22 | 201308040_NYA_SDN |
| Wade Davis | KCA | -3.19 | 201308020_KCA_NYN |
| Mike Pelfrey | MIN | -2.93 | 201308040_HOU_MIN |
| Dan Haren | WAS | -2.88 | 201308030_WAS_MIL |
| Brad Peacock | HOU | -2.03 | 201308040_HOU_MIN |
Based on accumulated WAA for this season up to 2013-08-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 7.89 | Clayton Kershaw | 168.3 | LAN |
| +006+ | 5.75 | Felix Hernandez | 160.7 | SEA |
| +007+ | 5.5 | Matt Harvey | 150.7 | NYN |
| +009+ | 5.15 | Patrick Corbin | 150.3 | ARI |
| +010+ | 5.11 | Adam Wainwright | 168.7 | SLN |
| +012+ | 4.95 | Hiroki Kuroda | 139.7 | NYA |
| +015+ | 4.67 | Bartolo Colon | 147.7 | OAK |
| +020+ | 4.36 | Francisco Liriano | 102.7 | PIT |
| +021+ | 4.32 | Jeff Locke | 125.7 | PIT |
| +024+ | 4.09 | Madison Bumgarner | 147 | SFN |
| +026+ | 3.9 | Yu Darvish | 138.7 | TEX |
| +027+ | 3.85 | Mike Minor | 144 | ATL |
| +028+ | 3.83 | Jose Fernandez | 127.7 | MIA |
| +032+ | 3.54 | Hisashi Iwakuma | 150 | SEA |
| +033+ | 3.48 | Max Scherzer | 151.3 | DET |
| +038+ | 3.33 | A.J. Burnett | 128.7 | PIT |
| +040+ | 3.3 | Ervin Santana | 151.3 | KCA |
| +041+ | 3.23 | Anibal Sanchez | 111 | DET |
| +043+ | 3.2 | Chris Sale | 142 | CHA |
| +044+ | 3.19 | Mike Leake | 140.7 | CIN |
| +049+ | 3.07 | Derek Holland | 155 | TEX |
| +052+ | 2.98 | James Shields | 154.7 | KCA |
| +054+ | 2.95 | Jordan Zimmermann | 147 | WAS |
| +057+ | 2.89 | Shelby Miller | 121.3 | SLN |
| +060+ | 2.76 | Cliff Lee | 149.7 | PHI |
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