| Starter | Tm | Tier | Game |
|---|---|---|---|
| Clayton Kershaw | LAN | 9.71 | 201304120_LAN_ARI |
| Matt Cain | SFN | 3.38 | 201304120_SFN_CHN |
| Felix Hernandez | SEA | 3.05 | 201304110_TEX_SEA |
| CC Sabathia | NYA | 2.93 | 201304120_BAL_NYA |
| Kyle Lohse | MIL | 2.68 | 201304120_MIL_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jake Arrieta | BAL | -4.26 | 201304100_BAL_BOS |
| Jeff Francis | COL | -3.22 | 201304100_COL_SFN |
| Rick Porcello | DET | -2.45 | 201304100_TOR_DET |
| Ricky Nolasco | MIA | -2.09 | 201304120_PHI_MIA |
| Liam Hendriks | MIN | -1.98 | 201304100_MIN_KCA |
Based on accumulated WAA for this season up to 2013-04-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 1.88 | Justin Masterson | 22 | CLE |
| +004+ | 1.61 | Clayton Kershaw | 23.3 | LAN |
| +006+ | 1.4 | Jake Westbrook | 15.7 | SLN |
| +007+ | 1.33 | Barry Zito | 14 | SFN |
| XXXXX | 1.18 | Paul Maholm | 12.7 | ATL |
| XXXXX | 1.16 | Cliff Lee | 16.7 | PHI |
| XXXXX | 1.16 | Carlos Villanueva | 14 | CHN |
| XXXXX | 1.14 | Clay Buchholz | 14 | BOS |
| XXXXX | 1.13 | Matt Harvey | 14 | NYN |
| XXXXX | 1.09 | Matt Moore | 11.3 | TBA |
| XXXXX | 1.02 | Andy Pettitte | 15 | NYA |
| XXXXX | 1 | Ross Detwiler | 13 | WAS |
| XXXXX | 1 | Mike Minor | 13 | ATL |
| XXXXX | 0.92 | Hisashi Iwakuma | 20.7 | SEA |
| XXXXX | 0.91 | Alexi Ogando | 11.7 | TEX |
| XXXXX | 0.9 | Bud Norris | 18.3 | HOU |
| XXXXX | 0.88 | C.C. Sabathia | 20 | NYA |
| XXXXX | 0.88 | Madison Bumgarner | 13.7 | SFN |
| XXXXX | 0.87 | Jhoulys Chacin | 13.3 | COL |
| XXXXX | 0.81 | Gio Gonzalez | 11 | WAS |
| XXXXX | 0.79 | Travis Wood | 12.3 | CHN |
| XXXXX | 0.77 | Chris Sale | 14.7 | CHA |
| XXXXX | 0.76 | Brett Anderson | 13 | OAK |
| XXXXX | 0.74 | Jon Lester | 12 | BOS |
| XXXXX | 0.71 | Alex Cobb | 7.3 | TBA |
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