| Starter | Tm | Tier | Game |
|---|---|---|---|
| Clayton Kershaw | LAN | 8.68 | 201304230_LAN_NYN |
| CC Sabathia | NYA | 3.59 | 201304220_NYA_TBA |
| Felix Hernandez | SEA | 3.54 | 201304220_SEA_HOU |
| Kyle Lohse | MIL | 2.89 | 201304220_MIL_SDN |
| R.A. Dickey | TOR | 2.82 | 201304230_TOR_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jeff Francis | COL | -5.07 | 201304231_ATL_COL |
| Edinson Volquez | SDN | -3.55 | 201304240_MIL_SDN |
| Joe Blanton | ANA | -3.11 | 201304220_TEX_ANA |
| J.A. Happ | TOR | -2.82 | 201304220_TOR_BAL |
| Phil Hughes | NYA | -1.98 | 201304230_NYA_TBA |
Based on accumulated WAA for this season up to 2013-04-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 1.92 | Matt Harvey | 35 | NYN |
| +005+ | 1.76 | Matt Moore | 26 | TBA |
| +006+ | 1.73 | Paul Maholm | 26.3 | ATL |
| +007+ | 1.71 | Yu Darvish | 32.7 | TEX |
| +009+ | 1.66 | Adam Wainwright | 37.3 | SLN |
| +010+ | 1.63 | Justin Masterson | 34 | CLE |
| +012+ | 1.61 | Carlos Villanueva | 29.3 | CHN |
| +017+ | 1.55 | Madison Bumgarner | 33.7 | SFN |
| +018+ | 1.52 | Ross Detwiler | 26 | WAS |
| +023+ | 1.46 | Felix Hernandez | 34.7 | SEA |
| +021+ | 1.46 | Alex Cobb | 29.7 | TBA |
| +024+ | 1.41 | Clayton Kershaw | 33.7 | LAN |
| +026+ | 1.4 | Shelby Miller | 25 | SLN |
| +027+ | 1.39 | Hisashi Iwakuma | 31.7 | SEA |
| +034+ | 1.31 | Jake Westbrook | 21.7 | SLN |
| XXXXX | 1.19 | Patrick Corbin | 26.3 | ARI |
| XXXXX | 1.19 | Mike Minor | 25 | ATL |
| XXXXX | 1.19 | Jon Lester | 31.7 | BOS |
| XXXXX | 1.18 | Anibal Sanchez | 25.7 | DET |
| XXXXX | 1.17 | Mat Latos | 33.3 | CIN |
| XXXXX | 1.16 | Wandy Rodriguez | 21.7 | PIT |
| XXXXX | 1.11 | Kevin Slowey | 23.7 | MIA |
| XXXXX | 1.1 | Travis Wood | 26 | CHN |
| XXXXX | 1.08 | Doug Fister | 27 | DET |
| XXXXX | 1.07 | Andy Pettitte | 28.3 | NYA |
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