| Starter | Tm | Tier | Game |
|---|---|---|---|
| Edinson Volquez | SDN | -6.45 | 201307200_SDN_SLN |
| Joe Blanton | ANA | -4.78 | 201307140_ANA_SEA |
| Mike Pelfrey | MIN | -3 | 201307190_CLE_MIN |
| Ian Kennedy | ARI | -2.5 | 201307190_ARI_SFN |
| Dillon Gee | NYN | -1.4 | 201307140_NYN_PIT |
Based on accumulated WAA for this season up to 2013-07-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 6.62 | Clayton Kershaw | 145.3 | LAN |
| +006+ | 5.06 | Adam Wainwright | 146.7 | SLN |
| +010+ | 4.51 | Patrick Corbin | 130.3 | ARI |
| +012+ | 4.41 | Felix Hernandez | 138.7 | SEA |
| +013+ | 4.4 | Matt Harvey | 130 | NYN |
| +015+ | 4.38 | Jeff Locke | 109 | PIT |
| +017+ | 4.23 | Jordan Zimmermann | 132.3 | WAS |
| +020+ | 3.77 | Hiroki Kuroda | 125.7 | NYA |
| +023+ | 3.53 | Cliff Lee | 138.7 | PHI |
| +024+ | 3.53 | Bartolo Colon | 126.7 | OAK |
| +027+ | 3.33 | Mike Leake | 122.7 | CIN |
| +030+ | 3.28 | Travis Wood | 122.7 | CHN |
| +033+ | 3.1 | Gio Gonzalez | 124.7 | WAS |
| +036+ | 3.01 | Chris Sale | 120 | CHA |
| +039+ | 2.92 | Chad Gaudin | 71 | SFN |
| +040+ | 2.91 | Hisashi Iwakuma | 138.3 | SEA |
| +045+ | 2.73 | Jose Fernandez | 104.7 | MIA |
| +050+ | 2.69 | Francisco Liriano | 81 | PIT |
| +052+ | 2.67 | John Lackey | 106.7 | BOS |
| +053+ | 2.66 | Stephen Strasburg | 115.3 | WAS |
| +056+ | 2.62 | Mike Minor | 122 | ATL |
| +057+ | 2.61 | Madison Bumgarner | 125 | SFN |
| +058+ | 2.54 | Tom Gorzelanny | 52.7 | MIL |
| +059+ | 2.51 | Derek Holland | 133.7 | TEX |
| +060+ | 2.48 | Ervin Santana | 130.3 | KCA |
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