| Starter | Tm | Tier | Game |
|---|---|---|---|
| Antonio Senzatela | COL | -5.05 | 201909220_COL_LAN |
| Glenn Sparkman | KCA | -2.68 | 201909210_KCA_MIN |
| Reynaldo Lopez | CHA | -1.89 | 201909220_CHA_DET |
| Trevor Williams | PIT | -1.76 | 201909220_PIT_MIL |
| Jhoulys Chacin | BOS | -1.26 | 201909230_BOS_TBA |
Based on accumulated WAA for this season up to 2019-09-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.84 | Justin Verlander | 217 | HOU |
| +002+ | 9.15 | Gerrit Cole | 200.3 | HOU |
| +003+ | 9.05 | Jacob deGrom | 197 | NYN |
| +005+ | 8.65 | Hyun-Jin Ryu | 175.7 | LAN |
| +008+ | 7.51 | Mike Soroka | 169.7 | ATL |
| +012+ | 6.96 | Sonny Gray | 170.3 | CIN |
| +013+ | 6.86 | Patrick Corbin | 197.7 | WAS |
| +014+ | 6.76 | Jack Flaherty | 182.3 | SLN |
| +016+ | 6.7 | Max Scherzer | 166.3 | WAS |
| +017+ | 6.68 | Zack Greinke | 200.3 | TOT |
| +019+ | 6.29 | Shane Bieber | 208.7 | CLE |
| +024+ | 5.86 | Luis Castillo | 185.7 | CIN |
| +027+ | 5.64 | Charlie Morton | 188.7 | TBA |
| +028+ | 5.54 | Stephen Strasburg | 203 | WAS |
| +032+ | 5.46 | Clayton Kershaw | 171.3 | LAN |
| +035+ | 5.36 | Marcus Stroman | 178.3 | TOT |
| +037+ | 5.25 | Mike Clevinger | 113.3 | CLE |
| +036+ | 5.25 | Walker Buehler | 177.3 | LAN |
| +046+ | 4.79 | Mike Minor | 199.7 | TEX |
| +050+ | 4.58 | Kyle Hendricks | 171 | CHN |
| +053+ | 4.37 | Dakota Hudson | 169.7 | SLN |
| +061+ | 3.84 | Eduardo Rodriguez | 191.3 | BOS |
| +062+ | 3.8 | Julio Teheran | 172.3 | ATL |
| +069+ | 3.67 | Lance Lynn | 201 | TEX |
| +080+ | 3.43 | John Means | 150 | BAL |
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