| Starter | Tm | Tier | Game |
|---|---|---|---|
| Drew Smyly | PHI | -4.32 | 201909020_PHI_CIN |
| Jorge Lopez | KCA | -3.7 | 201908310_BAL_KCA |
| Jordan Zimmermann | DET | -2.3 | 201909020_MIN_DET |
| Peter Lambert | COL | -2.24 | 201909020_COL_LAN |
| J.A. Happ | NYA | -2.04 | 201909010_OAK_NYA |
Based on accumulated WAA for this season up to 2019-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.65 | Justin Verlander | 193 | HOU |
| +004+ | 8 | Hyun-Jin Ryu | 157.3 | LAN |
| +006+ | 7.33 | Gerrit Cole | 176.3 | HOU |
| +008+ | 7.15 | Jacob deGrom | 169 | NYN |
| +009+ | 6.97 | Mike Soroka | 152.7 | ATL |
| +010+ | 6.88 | Max Scherzer | 142.7 | WAS |
| +014+ | 6.23 | Sonny Gray | 151.3 | CIN |
| +015+ | 6.13 | Zack Greinke | 177.3 | TOT |
| +017+ | 6.01 | Mike Minor | 181.7 | TEX |
| +020+ | 5.66 | Clayton Kershaw | 155 | LAN |
| +023+ | 5.47 | Charlie Morton | 170.3 | TBA |
| +024+ | 5.43 | Patrick Corbin | 174.7 | WAS |
| +025+ | 5.4 | Shane Bieber | 181.7 | CLE |
| +027+ | 5.28 | Luis Castillo | 166 | CIN |
| +030+ | 5.2 | Wade Miley | 156 | HOU |
| +032+ | 5.02 | Lucas Giolito | 163.7 | CHA |
| +036+ | 4.64 | Walker Buehler | 159.3 | LAN |
| +040+ | 4.58 | Marcus Stroman | 156.3 | TOT |
| +044+ | 4.42 | Stephen Strasburg | 179 | WAS |
| +050+ | 4.22 | Aaron Nola | 174.7 | PHI |
| +052+ | 4.1 | Julio Teheran | 157.3 | ATL |
| +053+ | 4.07 | Kyle Hendricks | 154 | CHN |
| +059+ | 3.66 | Mike Clevinger | 86 | CLE |
| +065+ | 3.52 | Dakota Hudson | 147.7 | SLN |
| +066+ | 3.51 | Jose Berrios | 169 | MIN |
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