| 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 |
| Dallas Keuchel | HOU | -2.56 | 201309190_HOU_CLE |
| Dylan Axelrod | CHA | -2.46 | 201309200_CHA_DET |
Based on accumulated WAA for this season up to 2013-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10.75 | Clayton Kershaw | 230 | LAN |
| +015+ | 5.39 | Hisashi Iwakuma | 211.7 | SEA |
| +016+ | 5.39 | Anibal Sanchez | 172 | DET |
| +017+ | 5.37 | Clay Buchholz | 101.3 | BOS |
| +018+ | 5.33 | Bartolo Colon | 184.3 | OAK |
| +020+ | 5.28 | Madison Bumgarner | 201.3 | SFN |
| +027+ | 4.96 | Yu Darvish | 198.7 | TEX |
| +030+ | 4.69 | Adam Wainwright | 229.3 | SLN |
| +031+ | 4.68 | Cliff Lee | 207.7 | PHI |
| +038+ | 4.39 | Zack Greinke | 166.7 | LAN |
| +037+ | 4.39 | Chris Sale | 209 | CHA |
| +043+ | 4.18 | Travis Wood | 199 | CHN |
| +045+ | 4.16 | Max Scherzer | 207.3 | DET |
| +058+ | 3.52 | Ervin Santana | 205 | KCA |
| +061+ | 3.44 | Francisco Liriano | 156 | PIT |
| +063+ | 3.4 | Jordan Zimmermann | 206.3 | WAS |
| +065+ | 3.36 | Hiroki Kuroda | 195.7 | NYA |
| +073+ | 3.22 | Jhoulys Chacin | 193.3 | COL |
| +076+ | 3.11 | Mike Minor | 191.7 | ATL |
| +078+ | 3.07 | Alex Cobb | 136.3 | TBA |
| +079+ | 3.06 | Mat Latos | 203.7 | CIN |
| +085+ | 2.95 | Mike Leake | 190.7 | CIN |
| +090+ | 2.92 | Joe Kelly | 111.7 | SLN |
| +093+ | 2.89 | Shelby Miller | 167.3 | SLN |
| +095+ | 2.87 | Kris Medlen | 189 | ATL |
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