| Starter | Tm | Tier | Game |
|---|---|---|---|
| Clayton Kershaw | LAN | 9.77 | 201305030_LAN_SFN |
| Felix Hernandez | SEA | 4.98 | 201305030_SEA_TOR |
| Doug Fister | DET | 3.56 | 201305030_DET_HOU |
| Kyle Lohse | MIL | 3.25 | 201305030_SLN_MIL |
| CC Sabathia | NYA | 2.79 | 201305030_OAK_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jeff Francis | COL | -5.6 | 201305030_TBA_COL |
| Rick Porcello | DET | -4.92 | 201305020_DET_HOU |
| Joe Blanton | ANA | -3.52 | 201305020_BAL_ANA |
| Jordan Lyles | HOU | -2.11 | 201305020_DET_HOU |
| J.A. Happ | TOR | -1.95 | 201305020_BOS_TOR |
Based on accumulated WAA for this season up to 2013-05-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.11 | Clay Buchholz | 44.7 | BOS |
| +003+ | 2.77 | Felix Hernandez | 50.7 | SEA |
| +004+ | 2.65 | Clayton Kershaw | 48.7 | LAN |
| +006+ | 2.43 | Hisashi Iwakuma | 44.7 | SEA |
| +007+ | 2.42 | Jordan Zimmermann | 44 | WAS |
| +010+ | 2.23 | Madison Bumgarner | 40.7 | SFN |
| +008+ | 2.23 | Jake Westbrook | 33.7 | SLN |
| +013+ | 2.17 | Matt Harvey | 40.3 | NYN |
| +016+ | 1.85 | Mat Latos | 39.3 | CIN |
| +017+ | 1.84 | Patrick Corbin | 40 | ARI |
| +018+ | 1.81 | Matt Moore | 37 | TBA |
| +019+ | 1.79 | Anibal Sanchez | 39.7 | DET |
| +020+ | 1.76 | Justin Verlander | 39.3 | DET |
| +021+ | 1.67 | Shelby Miller | 36.7 | SLN |
| +027+ | 1.54 | Kevin Slowey | 37.7 | MIA |
| +028+ | 1.53 | Kyle Kendrick | 40.7 | PHI |
| +029+ | 1.52 | Jeremy Guthrie | 41.3 | KCA |
| +032+ | 1.5 | Yu Darvish | 38.7 | TEX |
| +034+ | 1.44 | A.J. Burnett | 42 | PIT |
| +037+ | 1.4 | Hiroki Kuroda | 36 | NYA |
| +039+ | 1.39 | Adam Wainwright | 49.7 | SLN |
| +041+ | 1.36 | Travis Wood | 39.7 | CHN |
| +054+ | 1.25 | Ross Detwiler | 36 | WAS |
| XXXXX | 1.24 | Alex Cobb | 35.3 | TBA |
| XXXXX | 1.24 | Derek Holland | 42.7 | TEX |
_