| Starter | Tm | Tier | Game |
|---|---|---|---|
| John Danks | CHA | -4.11 | 201505100_CIN_CHA |
| Drew Hutchison | TOR | -3.63 | 201505090_BOS_TOR |
| Ryan Vogelsong | SFN | -3.6 | 201505100_MIA_SFN |
| Bud Norris | BAL | -2.82 | 201505100_BAL_NYA |
| Jeremy Hellickson | ARI | -2.32 | 201505080_SDN_ARI |
Based on accumulated WAA for this season up to 2015-05-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.95 | Dallas Keuchel | 51.7 | HOU |
| +003+ | 2.62 | Sonny Gray | 49 | OAK |
| +005+ | 2.31 | Felix Hernandez | 48.7 | SEA |
| +007+ | 2.25 | Zack Greinke | 40.3 | LAN |
| +008+ | 2.08 | Shelby Miller | 38 | ATL |
| +009+ | 2.08 | Nick Martinez | 36.7 | TEX |
| +011+ | 2.02 | Jake Odorizzi | 47.3 | TBA |
| +015+ | 1.94 | A.J. Burnett | 38 | PIT |
| +016+ | 1.86 | Max Scherzer | 42.7 | WAS |
| +020+ | 1.78 | Jon Niese | 37 | NYN |
| +021+ | 1.76 | Aaron Harang | 45.3 | PHI |
| +025+ | 1.67 | Chris Young | 23 | KCA |
| +029+ | 1.57 | Tim Lincecum | 36 | SFN |
| +030+ | 1.55 | Michael Wacha | 38.7 | SLN |
| +031+ | 1.49 | Mike Leake | 43.7 | CIN |
| +042+ | 1.31 | Gerrit Cole | 35.7 | PIT |
| +044+ | 1.29 | Chris Archer | 41.7 | TBA |
| +043+ | 1.29 | Wei-Yin Chen | 35.7 | BAL |
| +047+ | 1.25 | Garrett Richards | 31.7 | ANA |
| XXXXX | 1.21 | Anthony DeSclafani | 36 | CIN |
| XXXXX | 1.19 | Matt Harvey | 39.7 | NYN |
| XXXXX | 1.18 | C.J. Wilson | 40 | ANA |
| XXXXX | 1.15 | Johnny Cueto | 51.3 | CIN |
| XXXXX | 1.15 | Colby Lewis | 38 | TEX |
| XXXXX | 1.15 | Dan Haren | 37 | MIA |
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