| Starter | Tm | Tier | Game |
|---|---|---|---|
| Clayton Kershaw | LAN | 12.07 | 201306210_LAN_SDN |
| James Shields | KCA | 5.03 | 201306230_CHA_KCA |
| Hisashi Iwakuma | SEA | 3.94 | 201306210_OAK_SEA |
| Matt Harvey | NYN | 3.81 | 201306230_NYN_PHI |
| Johnny Cueto | CIN | 3.71 | 201306210_CIN_ARI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Edinson Volquez | SDN | -4.94 | 201306220_LAN_SDN |
| Joe Blanton | ANA | -4.71 | 201306230_PIT_ANA |
| Wily Peralta | MIL | -3.08 | 201306210_ATL_MIL |
| Roberto Hernandez | TBA | -2.31 | 201306210_TBA_NYA |
| Jason Hammel | BAL | -2.04 | 201306210_BAL_TOR |
Based on accumulated WAA for this season up to 2013-06-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 5.04 | Clayton Kershaw | 113.3 | LAN |
| +007+ | 4.69 | Matt Harvey | 110 | NYN |
| +009+ | 4.34 | Adam Wainwright | 116.7 | SLN |
| +010+ | 4.3 | Jordan Zimmermann | 107.7 | WAS |
| +012+ | 4.13 | Hisashi Iwakuma | 107.3 | SEA |
| +014+ | 3.99 | Patrick Corbin | 102.7 | ARI |
| +015+ | 3.91 | Jeff Locke | 89.3 | PIT |
| +017+ | 3.79 | Cliff Lee | 110.3 | PHI |
| +019+ | 3.35 | Shelby Miller | 92 | SLN |
| +022+ | 3.17 | Stephen Strasburg | 86.3 | WAS |
| +023+ | 3.11 | Ervin Santana | 99 | KCA |
| +024+ | 3.08 | Felix Hernandez | 109.7 | SEA |
| +025+ | 2.98 | Mike Leake | 96.7 | CIN |
| +030+ | 2.76 | James Shields | 111 | KCA |
| +036+ | 2.65 | Chris Sale | 90.3 | CHA |
| +041+ | 2.55 | Jake Westbrook | 51 | SLN |
| +042+ | 2.52 | Travis Wood | 98 | CHN |
| +046+ | 2.43 | Mike Minor | 96.7 | ATL |
| +054+ | 2.19 | Bartolo Colon | 98.3 | OAK |
| +055+ | 2.16 | Hyun-Jin Ryu | 91.3 | LAN |
| +056+ | 2.15 | Kris Medlen | 91.3 | ATL |
| +060+ | 2.02 | Francisco Liriano | 54.7 | PIT |
| +064+ | 1.98 | Max Scherzer | 103.3 | DET |
| +067+ | 1.89 | Mat Latos | 103.3 | CIN |
| +078+ | 1.77 | Tyler Chatwood | 44.7 | COL |
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