| Starter | Tm | Tier | Game |
|---|---|---|---|
| Derek Holland | SFN | -3.17 | 201805020_SDN_SFN |
| Josh Tomlin | CLE | -3.14 | 201805040_CLE_NYA |
| Wade Miley | MIL | -3.06 | 201805020_MIL_CIN |
| Chris Tillman | BAL | -1.8 | 201805030_BAL_ANA |
| Matt Moore | TEX | -1.42 | 201805020_TEX_CLE |
Based on accumulated WAA for this season up to 2018-05-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.35 | Justin Verlander | 47.7 | HOU |
| +003+ | 3.22 | Gerrit Cole | 50.7 | HOU |
| +004+ | 2.95 | Sean Manaea | 49.7 | OAK |
| +005+ | 2.81 | Carlos Martinez | 45 | SLN |
| +008+ | 2.49 | Max Scherzer | 45.3 | WAS |
| +012+ | 2.29 | Jarlin Garcia | 33 | MIA |
| +014+ | 2.19 | Jacob deGrom | 43.3 | NYN |
| +015+ | 2.16 | Luis Severino | 47 | NYA |
| +017+ | 2.08 | Patrick Corbin | 46 | ARI |
| +016+ | 2.08 | Aaron Nola | 45.7 | PHI |
| +018+ | 2.07 | Charlie Morton | 36.7 | HOU |
| +019+ | 2.05 | Rick Porcello | 46.3 | BOS |
| +020+ | 2.03 | CC Sabathia | 32.3 | NYA |
| +022+ | 1.94 | Corey Kluber | 52.3 | CLE |
| +024+ | 1.85 | Chris Sale | 42 | BOS |
| +029+ | 1.63 | Gio Gonzalez | 38.7 | WAS |
| +030+ | 1.59 | Blake Snell | 42.3 | TBA |
| +032+ | 1.56 | Chad Bettis | 37 | COL |
| +038+ | 1.48 | Reynaldo Lopez | 37 | CHA |
| +042+ | 1.46 | Trevor Williams | 41 | PIT |
| +052+ | 1.33 | Hyun-Jin Ryu | 29.7 | LAN |
| +055+ | 1.28 | Miles Mikolas | 40 | SLN |
| XXXXX | 1.22 | Clayton Kershaw | 44 | LAN |
| XXXXX | 1.14 | Junior Guerra | 27 | MIL |
| XXXXX | 1.13 | Matt Boyd | 29 | DET |
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