| Starter | Tm | Tier | Game |
|---|---|---|---|
| Martin Perez | TEX | -3.77 | 201804220_SEA_TEX |
| Chris Tillman | BAL | -2.45 | 201804210_CLE_BAL |
| Derek Holland | SFN | -2.42 | 201804210_SFN_ANA |
| Kyle Gibson | MIN | -2.09 | 201804210_MIN_TBA |
| Mike Fiers | DET | -1.51 | 201804210_KCA_DET |
Based on accumulated WAA for this season up to 2018-04-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.42 | Sean Manaea | 36.7 | OAK |
| +004+ | 2.3 | Gerrit Cole | 35 | HOU |
| +006+ | 2.29 | Justin Verlander | 32.7 | HOU |
| +005+ | 2.29 | Johnny Cueto | 26 | SFN |
| +007+ | 2.1 | Max Scherzer | 33 | WAS |
| +008+ | 1.98 | Carlos Martinez | 31.7 | SLN |
| +009+ | 1.98 | Dylan Bundy | 31.7 | BAL |
| +010+ | 1.97 | Charlie Morton | 25 | HOU |
| +012+ | 1.89 | Jarlin Garcia | 27 | MIA |
| +013+ | 1.72 | Corey Kluber | 36.7 | CLE |
| +015+ | 1.64 | Patrick Corbin | 33.3 | ARI |
| +016+ | 1.56 | Rick Porcello | 25.7 | BOS |
| +018+ | 1.52 | Jose Berrios | 27.7 | MIN |
| +022+ | 1.45 | Chris Sale | 29 | BOS |
| +023+ | 1.44 | Reynaldo Lopez | 24 | CHA |
| +027+ | 1.36 | Carlos Carrasco | 35 | CLE |
| +026+ | 1.36 | Jake Junis | 26.7 | KCA |
| +030+ | 1.33 | Mike Clevinger | 25.7 | CLE |
| +031+ | 1.33 | Trevor Williams | 29.3 | PIT |
| +033+ | 1.3 | Chris Stratton | 31 | SFN |
| +034+ | 1.29 | Junior Guerra | 16 | MIL |
| +037+ | 1.27 | Aaron Nola | 31.3 | PHI |
| XXXXX | 1.24 | Chad Bettis | 30 | COL |
| XXXXX | 1.22 | Luis Severino | 31 | NYA |
| XXXXX | 1.1 | Jacob deGrom | 32 | NYN |
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