| Starter | Tm | Tier | Game |
|---|---|---|---|
| Barry Zito | SFN | -3.88 | 201308260_SFN_COL |
| Wade Davis | KCA | -3.05 | 201308240_WAS_KCA |
| Aaron Harang | SEA | -2.93 | 201308250_ANA_SEA |
| Jeremy Hellickson | TBA | -2.64 | 201308260_TBA_KCA |
| Roy Halladay | PHI | -2.45 | 201308250_ARI_PHI |
Based on accumulated WAA for this season up to 2013-08-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.99 | Clayton Kershaw | 198.3 | LAN |
| +006+ | 6.36 | Matt Harvey | 178.3 | NYN |
| +007+ | 6.07 | Adam Wainwright | 198.7 | SLN |
| +010+ | 5.52 | Jose Fernandez | 152.7 | MIA |
| +011+ | 5.27 | Felix Hernandez | 184.7 | SEA |
| +017+ | 4.7 | Yu Darvish | 168 | TEX |
| +018+ | 4.65 | Hiroki Kuroda | 166.3 | NYA |
| +020+ | 4.61 | Max Scherzer | 178.3 | DET |
| +024+ | 4.22 | Madison Bumgarner | 171 | SFN |
| +027+ | 4.12 | Anibal Sanchez | 144.7 | DET |
| +029+ | 4.06 | Patrick Corbin | 177.7 | ARI |
| +033+ | 3.84 | Mat Latos | 169 | CIN |
| +036+ | 3.78 | Derek Holland | 174 | TEX |
| +042+ | 3.62 | Hisashi Iwakuma | 178 | SEA |
| +047+ | 3.46 | Mike Minor | 165.7 | ATL |
| +048+ | 3.46 | Cliff Lee | 178.7 | PHI |
| +053+ | 3.38 | Zack Greinke | 141.7 | LAN |
| +055+ | 3.25 | Stephen Strasburg | 156 | WAS |
| +058+ | 3.23 | Shelby Miller | 139.7 | SLN |
| +059+ | 3.16 | Francisco Liriano | 125 | PIT |
| +060+ | 3.13 | Chris Sale | 172.3 | CHA |
| +064+ | 3.01 | Hyun-Jin Ryu | 160.7 | LAN |
| +070+ | 2.92 | Julio Teheran | 155 | ATL |
| +071+ | 2.9 | James Shields | 181.7 | KCA |
| +078+ | 2.8 | Ervin Santana | 173.7 | KCA |
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