| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hisashi Iwakuma | SEA | 3.13 | 201309250_KCA_SEA |
| Yu Darvish | TEX | 2.69 | 201309240_HOU_TEX |
| Max Scherzer | DET | 1.81 | 201309250_DET_MIN |
| Hyun Jin Ryu | LAN | 1.33 | 201309240_LAN_SFN |
| Ervin Santana | KCA | 1.24 | 201309250_KCA_SEA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Edinson Volquez | LAN | -6.95 | 201309260_LAN_SFN |
| Barry Zito | SFN | -4.82 | 201309250_LAN_SFN |
| Dylan Axelrod | CHA | -3.79 | 201309250_CHA_CLE |
| Ian Kennedy | SDN | -3.31 | 201309250_ARI_SDN |
| Scott Diamond | MIN | -2.83 | 201309240_DET_MIN |
Based on accumulated WAA for this season up to 2013-09-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10.71 | Clayton Kershaw | 230 | LAN |
| +012+ | 6 | Hisashi Iwakuma | 219.7 | SEA |
| +017+ | 5.34 | Clay Buchholz | 101.3 | BOS |
| +026+ | 4.95 | Yu Darvish | 204 | TEX |
| +027+ | 4.93 | Anibal Sanchez | 177 | DET |
| +029+ | 4.87 | Cliff Lee | 214.7 | PHI |
| +030+ | 4.81 | Zack Greinke | 171.7 | LAN |
| +032+ | 4.7 | Max Scherzer | 214.3 | DET |
| +035+ | 4.63 | Adam Wainwright | 236.3 | SLN |
| +043+ | 4.12 | Travis Wood | 199 | CHN |
| +049+ | 3.97 | Hyun-Jin Ryu | 188 | LAN |
| +051+ | 3.89 | Felix Hernandez | 198.3 | SEA |
| +056+ | 3.66 | Alex Cobb | 143.3 | TBA |
| +061+ | 3.56 | Stephen Strasburg | 176 | WAS |
| +064+ | 3.46 | James Shields | 221.7 | KCA |
| +066+ | 3.41 | Mat Latos | 210.7 | CIN |
| +071+ | 3.31 | Julio Teheran | 180.7 | ATL |
| +075+ | 3.18 | Shelby Miller | 173.3 | SLN |
| +076+ | 3.16 | Jordan Zimmermann | 213.3 | WAS |
| +079+ | 3.15 | Andrew Cashner | 175 | SDN |
| +080+ | 3.13 | Ervin Santana | 211 | KCA |
| +085+ | 3.05 | Mike Minor | 198.7 | ATL |
| +088+ | 3.01 | Francisco Liriano | 161 | PIT |
| +092+ | 2.91 | Tyler Thornburg | 66.7 | MIL |
| +094+ | 2.89 | Joe Kelly | 118.7 | SLN |
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