| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jeremy Hellickson | ARI | -3.66 | 201505190_ARI_MIA |
| Drew Hutchison | TOR | -2.98 | 201505200_ANA_TOR |
| John Danks | CHA | -2.97 | 201505210_CLE_CHA |
| Erasmo Ramirez | TBA | -2.92 | 201505190_TBA_ATL |
| Jerome Williams | PHI | -2.91 | 201505210_PHI_COL |
Based on accumulated WAA for this season up to 2015-05-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.31 | Shelby Miller | 54 | ATL |
| +003+ | 3.23 | Dallas Keuchel | 64.7 | HOU |
| +004+ | 3.01 | Aaron Harang | 59.3 | PHI |
| +005+ | 3 | Zack Greinke | 53.3 | LAN |
| +006+ | 2.91 | A.J. Burnett | 52 | PIT |
| +007+ | 2.88 | Max Scherzer | 56.7 | WAS |
| +008+ | 2.83 | Sonny Gray | 61 | OAK |
| +012+ | 2.49 | Matt Harvey | 54.7 | NYN |
| +016+ | 2.22 | Nick Martinez | 48 | TEX |
| +020+ | 2.05 | Jake Odorizzi | 59.3 | TBA |
| +021+ | 2 | Felix Hernandez | 54.7 | SEA |
| +023+ | 1.98 | Tim Lincecum | 47.7 | SFN |
| +024+ | 1.96 | Chris Young | 28.7 | KCA |
| +025+ | 1.93 | Michael Wacha | 50.7 | SLN |
| +028+ | 1.88 | Hector Santiago | 48 | ANA |
| +029+ | 1.83 | Chris Archer | 54.7 | TBA |
| +042+ | 1.57 | Gerrit Cole | 48.7 | PIT |
| +045+ | 1.53 | Jacob deGrom | 55.7 | NYN |
| +047+ | 1.5 | Garrett Richards | 39.3 | ANA |
| +048+ | 1.48 | Ubaldo Jimenez | 40.7 | BAL |
| +051+ | 1.46 | Chase Anderson | 49.7 | ARI |
| +054+ | 1.42 | Jason Hammel | 53.3 | CHN |
| +060+ | 1.35 | Madison Bumgarner | 57 | SFN |
| +062+ | 1.34 | Johnny Cueto | 65.3 | CIN |
| +063+ | 1.31 | Edinson Volquez | 49.3 | KCA |
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