| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lucas Giolito | CHA | -5.3 | 201809040_DET_CHA |
| Homer Bailey | CIN | -4.09 | 201809050_CIN_PIT |
| Bartolo Colon | TEX | -3.37 | 201809050_ANA_TEX |
| Jason Vargas | NYN | -3.29 | 201809040_NYN_LAN |
| Alex Cobb | BAL | -2.14 | 201809040_BAL_SEA |
Based on accumulated WAA for this season up to 2018-09-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.72 | Jacob deGrom | 188 | NYN |
| +003+ | 8.49 | Max Scherzer | 193.7 | WAS |
| +004+ | 8.06 | Aaron Nola | 181.7 | PHI |
| +005+ | 7.55 | Blake Snell | 151.7 | TBA |
| +010+ | 6.27 | Corey Kluber | 193.3 | CLE |
| +012+ | 6.12 | Justin Verlander | 188 | HOU |
| +019+ | 5.2 | Gerrit Cole | 176.3 | HOU |
| +022+ | 5.14 | Clayton Kershaw | 131.3 | LAN |
| +023+ | 4.98 | Mike Foltynewicz | 157 | ATL |
| +024+ | 4.75 | Kyle Freeland | 170.3 | COL |
| +027+ | 4.48 | Patrick Corbin | 173.7 | ARI |
| +029+ | 4.42 | Clay Buchholz | 92 | ARI |
| +030+ | 4.37 | Zack Greinke | 181.3 | ARI |
| +031+ | 4.3 | Miles Mikolas | 173.7 | SLN |
| +032+ | 4.21 | Mike Clevinger | 176.3 | CLE |
| +034+ | 4.05 | Jack Flaherty | 127.3 | SLN |
| +038+ | 3.83 | Dereck Rodriguez | 97 | SFN |
| +049+ | 3.53 | Trevor Williams | 148.7 | PIT |
| +069+ | 3.01 | Brad Keller | 120.3 | KCA |
| +070+ | 3 | Carlos Rodon | 99.7 | CHA |
| +071+ | 2.99 | Wade Miley | 63.7 | MIL |
| +074+ | 2.93 | Michael Fiers | 152.7 | TOT |
| +077+ | 2.92 | Jameson Taillon | 164 | PIT |
| +079+ | 2.85 | Zack Wheeler | 167.3 | NYN |
| +080+ | 2.81 | Walker Buehler | 104.7 | LAN |
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