| Starter | Tm | Tier | Game |
|---|---|---|---|
| James Shields | CHA | -3.93 | 201804250_SEA_CHA |
| Jordan Zimmermann | DET | -3.82 | 201804251_DET_PIT |
| Kendall Graveman | OAK | -1.89 | 201804250_OAK_TEX |
| Matt Wisler | ATL | -1.79 | 201804250_ATL_CIN |
| Josh Tomlin | CLE | -1.54 | 201804240_CHN_CLE |
Based on accumulated WAA for this season up to 2018-04-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.55 | Justin Verlander | 39.7 | HOU |
| +004+ | 2.46 | Sean Manaea | 36.7 | OAK |
| +005+ | 2.32 | Gerrit Cole | 35 | HOU |
| +006+ | 2.3 | Johnny Cueto | 26 | SFN |
| +007+ | 2.29 | Max Scherzer | 39 | WAS |
| +009+ | 1.99 | Dylan Bundy | 31.7 | BAL |
| +010+ | 1.98 | Carlos Martinez | 31.7 | SLN |
| +011+ | 1.9 | Jarlin Garcia | 27 | MIA |
| +012+ | 1.75 | Corey Kluber | 36.7 | CLE |
| +014+ | 1.68 | Patrick Corbin | 33.3 | ARI |
| +016+ | 1.6 | Rick Porcello | 32.7 | BOS |
| +017+ | 1.53 | Charlie Morton | 29 | HOU |
| +020+ | 1.47 | Chris Sale | 29 | BOS |
| +021+ | 1.46 | Reynaldo Lopez | 24 | CHA |
| +025+ | 1.38 | Carlos Carrasco | 35 | CLE |
| +027+ | 1.37 | Jake Junis | 26.7 | KCA |
| +029+ | 1.35 | Mike Clevinger | 25.7 | CLE |
| +030+ | 1.34 | Trevor Williams | 29.3 | PIT |
| +032+ | 1.31 | Chris Stratton | 31 | SFN |
| +033+ | 1.3 | Junior Guerra | 16 | MIL |
| +039+ | 1.29 | Jake Arrieta | 24.7 | PHI |
| +037+ | 1.29 | Aaron Nola | 31.3 | PHI |
| +041+ | 1.26 | Trevor Bauer | 33.7 | CLE |
| +042+ | 1.25 | Chad Bettis | 30 | COL |
| XXXXX | 1.24 | Luis Severino | 31 | NYA |
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