| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lucas Harrell | HOU | -5.43 | 201309080_HOU_OAK |
| Ian Kennedy | SDN | -3.29 | 201309080_COL_SDN |
| Dan Haren | WAS | -2.45 | 201309060_WAS_MIA |
| Mike Pelfrey | MIN | -1.68 | 201309060_TOR_MIN |
| Brandon McCarthy | ARI | -1.59 | 201309070_ARI_SFN |
Based on accumulated WAA for this season up to 2013-09-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.96 | Clayton Kershaw | 216 | LAN |
| +008+ | 6.33 | Jose Fernandez | 165.7 | MIA |
| +018+ | 4.77 | Madison Bumgarner | 188.3 | SFN |
| +020+ | 4.63 | Anibal Sanchez | 158.3 | DET |
| +021+ | 4.37 | Max Scherzer | 190.3 | DET |
| +027+ | 4.26 | Adam Wainwright | 213.7 | SLN |
| +031+ | 4.13 | Yu Darvish | 179.7 | TEX |
| +032+ | 4.11 | Bartolo Colon | 170.3 | OAK |
| +035+ | 4.07 | Cliff Lee | 191.7 | PHI |
| +039+ | 4.04 | Hisashi Iwakuma | 196.7 | SEA |
| +043+ | 3.97 | Zack Greinke | 154.7 | LAN |
| +045+ | 3.93 | Hiroki Kuroda | 183.7 | NYA |
| +046+ | 3.88 | Mat Latos | 191 | CIN |
| +050+ | 3.72 | Stephen Strasburg | 170 | WAS |
| +053+ | 3.55 | Patrick Corbin | 190.7 | ARI |
| +054+ | 3.49 | Mike Minor | 179.7 | ATL |
| +061+ | 3.23 | Jhoulys Chacin | 176.3 | COL |
| +076+ | 2.85 | Tyson Ross | 103.3 | SDN |
| +078+ | 2.79 | Derek Holland | 190.3 | TEX |
| +079+ | 2.73 | Francisco Liriano | 136 | PIT |
| +080+ | 2.71 | Joe Kelly | 101.7 | SLN |
| +089+ | 2.59 | Ricky Nolasco | 179.7 | TOT |
| +091+ | 2.59 | Bruce Chen | 100 | KCA |
| +090+ | 2.59 | Jordan Zimmermann | 185.3 | WAS |
| +097+ | 2.51 | Tony Cingrani | 103 | CIN |
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