| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lucas Giolito | CHA | -5.79 | 201808300_BOS_CHA |
| Homer Bailey | CIN | -3.97 | 201808310_CIN_SLN |
| Jason Vargas | NYN | -3.46 | 201808290_NYN_CHN |
| Alex Cobb | BAL | -1.47 | 201808290_TOR_BAL |
| Eric Lauer | SDN | -1.24 | 201808300_COL_SDN |
Based on accumulated WAA for this season up to 2018-08-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.39 | Jacob deGrom | 182 | NYN |
| +003+ | 8.51 | Max Scherzer | 186.7 | WAS |
| +004+ | 8.36 | Aaron Nola | 176 | PHI |
| +007+ | 7.13 | Blake Snell | 145 | TBA |
| +012+ | 5.86 | Corey Kluber | 186.7 | CLE |
| +014+ | 5.68 | Justin Verlander | 181 | HOU |
| +017+ | 5.1 | Gerrit Cole | 170.7 | HOU |
| +022+ | 4.91 | Clayton Kershaw | 124.3 | LAN |
| +023+ | 4.83 | Kyle Freeland | 164.3 | COL |
| +024+ | 4.72 | Zack Greinke | 176 | ARI |
| +025+ | 4.65 | Mike Foltynewicz | 151 | ATL |
| +026+ | 4.54 | Miles Mikolas | 167 | SLN |
| +029+ | 4.15 | Clay Buchholz | 87 | ARI |
| +032+ | 4.01 | Patrick Corbin | 168.7 | ARI |
| +034+ | 3.86 | Mike Clevinger | 170.3 | CLE |
| +036+ | 3.81 | Jack Flaherty | 122.3 | SLN |
| +045+ | 3.51 | Charlie Morton | 152 | HOU |
| +048+ | 3.46 | Dereck Rodriguez | 91 | SFN |
| +050+ | 3.34 | Madison Bumgarner | 100.7 | SFN |
| +054+ | 3.24 | Carlos Rodon | 93.3 | CHA |
| +059+ | 3.19 | Luis Severino | 171 | NYA |
| +068+ | 2.89 | Trevor Williams | 142 | PIT |
| +067+ | 2.89 | Anibal Sanchez | 108.7 | ATL |
| +071+ | 2.84 | Zack Wheeler | 160.3 | NYN |
| +073+ | 2.79 | Michael Fiers | 146.7 | TOT |
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