| 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 |
| Jeremy Hellickson | TBA | -3.42 | 201309270_TBA_TOR |
| Ian Kennedy | SDN | -3.31 | 201309250_ARI_SDN |
Based on accumulated WAA for this season up to 2013-09-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 11.26 | Clayton Kershaw | 236 | LAN |
| +012+ | 6.01 | Hisashi Iwakuma | 219.7 | SEA |
| +016+ | 5.42 | Bartolo Colon | 190.3 | OAK |
| +017+ | 5.41 | Cliff Lee | 222.7 | PHI |
| +018+ | 5.35 | Clay Buchholz | 108.3 | BOS |
| +028+ | 4.96 | Yu Darvish | 204 | TEX |
| +029+ | 4.95 | Anibal Sanchez | 177 | DET |
| +030+ | 4.81 | Zack Greinke | 171.7 | LAN |
| +031+ | 4.73 | Max Scherzer | 214.3 | DET |
| +033+ | 4.64 | Adam Wainwright | 236.3 | SLN |
| +048+ | 3.99 | Chris Sale | 214.3 | CHA |
| +049+ | 3.98 | Hyun-Jin Ryu | 188 | LAN |
| +052+ | 3.89 | James Shields | 228.7 | KCA |
| +054+ | 3.8 | Felix Hernandez | 204.3 | SEA |
| +055+ | 3.78 | Stephen Strasburg | 183 | WAS |
| +058+ | 3.67 | Alex Cobb | 143.3 | TBA |
| +063+ | 3.6 | Travis Wood | 200 | CHN |
| +065+ | 3.53 | Kris Medlen | 197 | ATL |
| +071+ | 3.41 | Mat Latos | 210.7 | CIN |
| +078+ | 3.18 | Shelby Miller | 173.3 | SLN |
| +079+ | 3.17 | Jordan Zimmermann | 213.3 | WAS |
| +082+ | 3.13 | Ervin Santana | 211 | KCA |
| +085+ | 3.05 | Mike Minor | 198.7 | ATL |
| +089+ | 3.01 | Francisco Liriano | 161 | PIT |
| +094+ | 2.91 | Tyler Thornburg | 66.7 | MIL |
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