| Starter | Tm | Tier | Game |
|---|---|---|---|
| Clayton Kershaw | LAN | 9.71 | 201304120_LAN_ARI |
| Justin Verlander | DET | 7.29 | 201304130_DET_OAK |
| Johnny Cueto | CIN | 6.63 | 201304130_CIN_PIT |
| Matt Cain | SFN | 3.38 | 201304120_SFN_CHN |
| Felix Hernandez | SEA | 3.05 | 201304110_TEX_SEA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Edinson Volquez | SDN | -2.88 | 201304130_COL_SDN |
| Ricky Nolasco | MIA | -2.09 | 201304120_PHI_MIA |
| J.A. Happ | TOR | -1.95 | 201304120_TOR_KCA |
| Phil Hughes | NYA | -1.63 | 201304130_BAL_NYA |
| Scott Feldman | CHN | -1.2 | 201304110_SFN_CHN |
Based on accumulated WAA for this season up to 2013-04-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 1.84 | Justin Masterson | 22 | CLE |
| +004+ | 1.65 | Matt Harvey | 22 | NYN |
| +005+ | 1.56 | Clayton Kershaw | 23.3 | LAN |
| +007+ | 1.38 | Jake Westbrook | 15.7 | SLN |
| +010+ | 1.3 | Barry Zito | 14 | SFN |
| XXXXX | 1.15 | Paul Maholm | 12.7 | ATL |
| XXXXX | 1.14 | Cliff Lee | 16.7 | PHI |
| XXXXX | 1.14 | Alexi Ogando | 16.7 | TEX |
| XXXXX | 1.14 | Jon Lester | 19 | BOS |
| XXXXX | 1.13 | Carlos Villanueva | 14 | CHN |
| XXXXX | 1.09 | Clay Buchholz | 14 | BOS |
| XXXXX | 1.06 | Matt Moore | 11.3 | TBA |
| XXXXX | 1.06 | Madison Bumgarner | 20.3 | SFN |
| XXXXX | 0.99 | Andy Pettitte | 15 | NYA |
| XXXXX | 0.97 | Ross Detwiler | 13 | WAS |
| XXXXX | 0.97 | Mike Minor | 13 | ATL |
| XXXXX | 0.89 | Adam Wainwright | 22 | SLN |
| XXXXX | 0.89 | Jhoulys Chacin | 18.3 | COL |
| XXXXX | 0.88 | Hisashi Iwakuma | 20.7 | SEA |
| XXXXX | 0.87 | Bud Norris | 18.3 | HOU |
| XXXXX | 0.84 | Jose Fernandez | 11 | MIA |
| XXXXX | 0.84 | Justin Verlander | 18.3 | DET |
| XXXXX | 0.83 | C.C. Sabathia | 20 | NYA |
| XXXXX | 0.79 | Gio Gonzalez | 11 | WAS |
| XXXXX | 0.78 | Joe Saunders | 17.3 | SEA |
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