| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Saunders | SEA | -3.02 | 201309050_SEA_KCA |
| Dan Haren | WAS | -2.45 | 201309060_WAS_MIA |
| Mike Pelfrey | MIN | -1.68 | 201309060_TOR_MIN |
| Ryan Vogelsong | SFN | -1.6 | 201309050_ARI_SFN |
| Brandon McCarthy | ARI | -1.59 | 201309070_ARI_SFN |
Based on accumulated WAA for this season up to 2013-09-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.77 | Clayton Kershaw | 209 | LAN |
| +007+ | 6.35 | Jose Fernandez | 165.7 | MIA |
| +018+ | 4.64 | Anibal Sanchez | 158.3 | DET |
| +020+ | 4.39 | Max Scherzer | 190.3 | DET |
| +025+ | 4.29 | Adam Wainwright | 213.7 | SLN |
| +026+ | 4.28 | Madison Bumgarner | 182.3 | SFN |
| +030+ | 4.15 | Yu Darvish | 179.7 | TEX |
| +032+ | 4.1 | Cliff Lee | 191.7 | PHI |
| +033+ | 4.07 | Hisashi Iwakuma | 196.7 | SEA |
| +035+ | 4.03 | Stephen Strasburg | 164 | WAS |
| +036+ | 4.02 | Chris Sale | 187.7 | CHA |
| +039+ | 3.98 | Zack Greinke | 154.7 | LAN |
| +044+ | 3.91 | Mat Latos | 191 | CIN |
| +048+ | 3.83 | Hiroki Kuroda | 177.7 | NYA |
| +050+ | 3.8 | Bartolo Colon | 164.3 | OAK |
| +053+ | 3.58 | Patrick Corbin | 190.7 | ARI |
| +054+ | 3.5 | Mike Minor | 179.7 | ATL |
| +061+ | 3.25 | Jhoulys Chacin | 176.3 | COL |
| +069+ | 2.99 | Travis Wood | 179 | CHN |
| +076+ | 2.86 | Tyson Ross | 103.3 | SDN |
| +077+ | 2.81 | Derek Holland | 190.3 | TEX |
| +079+ | 2.74 | Francisco Liriano | 136 | PIT |
| +080+ | 2.73 | Joe Kelly | 101.7 | SLN |
| +088+ | 2.62 | Jordan Zimmermann | 185.3 | WAS |
| +089+ | 2.62 | Ricky Nolasco | 179.7 | TOT |
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