| Starter | Tm | Tier | Game |
|---|---|---|---|
| Edinson Volquez | LAN | -8.53 | 201309200_LAN_SDN |
| Joe Saunders | SEA | -4.07 | 201309210_SEA_ANA |
| CC Sabathia | NYA | -3.27 | 201309200_SFN_NYA |
| Dylan Axelrod | CHA | -2.46 | 201309200_CHA_DET |
| Ryan Vogelsong | SFN | -2.26 | 201309210_SFN_NYA |
Based on accumulated WAA for this season up to 2013-09-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10.76 | Clayton Kershaw | 230 | LAN |
| +017+ | 5.4 | Hisashi Iwakuma | 211.7 | SEA |
| +018+ | 5.37 | Clay Buchholz | 101.3 | BOS |
| +019+ | 5.33 | Bartolo Colon | 184.3 | OAK |
| +020+ | 5.29 | Madison Bumgarner | 201.3 | SFN |
| +026+ | 5.01 | Anibal Sanchez | 177 | DET |
| +027+ | 4.96 | Yu Darvish | 198.7 | TEX |
| +028+ | 4.91 | Cliff Lee | 214.7 | PHI |
| +030+ | 4.85 | Zack Greinke | 171.7 | LAN |
| +033+ | 4.71 | Adam Wainwright | 229.3 | SLN |
| +038+ | 4.4 | Chris Sale | 209 | CHA |
| +041+ | 4.19 | Travis Wood | 199 | CHN |
| +043+ | 4.17 | Max Scherzer | 207.3 | DET |
| +047+ | 3.99 | Felix Hernandez | 198.3 | SEA |
| +055+ | 3.59 | Stephen Strasburg | 176 | WAS |
| +058+ | 3.56 | James Shields | 221.7 | KCA |
| +059+ | 3.51 | Ervin Santana | 205 | KCA |
| +063+ | 3.44 | Francisco Liriano | 156 | PIT |
| +066+ | 3.4 | Jordan Zimmermann | 206.3 | WAS |
| +068+ | 3.38 | Julio Teheran | 180.7 | ATL |
| +069+ | 3.37 | Hiroki Kuroda | 195.7 | NYA |
| +073+ | 3.26 | Andrew Cashner | 175 | SDN |
| +075+ | 3.22 | Jhoulys Chacin | 193.3 | COL |
| +080+ | 3.07 | Alex Cobb | 136.3 | TBA |
| +081+ | 3.07 | Mat Latos | 203.7 | CIN |
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