| Starter | Tm | Tier | Game |
|---|---|---|---|
| Clayton Kershaw | LAN | 12.07 | 201306210_LAN_SDN |
| Felix Hernandez | SEA | 5.79 | 201306200_SEA_ANA |
| Jordan Zimmermann | WAS | 4.97 | 201306200_COL_WAS |
| Johnny Cueto | CIN | 3.71 | 201306210_CIN_ARI |
| Chris Sale | CHA | 3.45 | 201306190_CHA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wily Peralta | MIL | -3.08 | 201306210_ATL_MIL |
| Clayton Richard | SDN | -3.08 | 201306210_LAN_SDN |
| Roberto Hernandez | TBA | -2.31 | 201306210_TBA_NYA |
| Justin Grimm | TEX | -2.14 | 201306190_OAK_TEX |
| Jason Hammel | BAL | -2.04 | 201306210_BAL_TOR |
Based on accumulated WAA for this season up to 2013-06-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 5.03 | Clayton Kershaw | 113.3 | LAN |
| +008+ | 4.29 | Jordan Zimmermann | 107.7 | WAS |
| +010+ | 4.13 | Hisashi Iwakuma | 107.3 | SEA |
| +011+ | 4.12 | Matt Harvey | 104 | NYN |
| +014+ | 3.92 | Adam Wainwright | 110 | SLN |
| +015+ | 3.91 | Jeff Locke | 89.3 | PIT |
| +016+ | 3.78 | Cliff Lee | 110.3 | PHI |
| +017+ | 3.66 | Shelby Miller | 86.3 | SLN |
| +018+ | 3.47 | Patrick Corbin | 94.7 | ARI |
| +022+ | 3.16 | Stephen Strasburg | 86.3 | WAS |
| +023+ | 3.12 | James Shields | 106 | KCA |
| +024+ | 3.1 | Ervin Santana | 99 | KCA |
| +025+ | 3.08 | Felix Hernandez | 109.7 | SEA |
| +031+ | 2.65 | Mike Leake | 88.7 | CIN |
| +033+ | 2.63 | Chris Sale | 90.3 | CHA |
| +035+ | 2.58 | Travis Wood | 92 | CHN |
| +038+ | 2.54 | Jake Westbrook | 51 | SLN |
| +039+ | 2.5 | Hiroki Kuroda | 94 | NYA |
| +041+ | 2.48 | Yu Darvish | 101.3 | TEX |
| +044+ | 2.41 | Mike Minor | 96.7 | ATL |
| +053+ | 2.16 | Bartolo Colon | 98.3 | OAK |
| +054+ | 2.15 | Hyun-Jin Ryu | 91.3 | LAN |
| +055+ | 2.12 | Kris Medlen | 91.3 | ATL |
| +074+ | 1.76 | Tyler Chatwood | 44.7 | COL |
| +076+ | 1.75 | Max Scherzer | 96.3 | DET |
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