| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jorge Lopez | KCA | -3.96 | 201909060_KCA_MIA |
| Drew Smyly | PHI | -3.74 | 201909070_PHI_NYN |
| Jordan Zimmermann | DET | -2.04 | 201909070_DET_OAK |
| Jeff Hoffman | COL | -1.72 | 201909070_COL_SDN |
| Reynaldo Lopez | CHA | -1.66 | 201909050_CHA_CLE |
Based on accumulated WAA for this season up to 2019-09-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.07 | Justin Verlander | 200 | HOU |
| +004+ | 7.78 | Hyun-Jin Ryu | 161.7 | LAN |
| +006+ | 7.23 | Gerrit Cole | 176.3 | HOU |
| +009+ | 7 | Jacob deGrom | 176 | NYN |
| +010+ | 6.93 | Mike Soroka | 152.7 | ATL |
| +011+ | 6.67 | Max Scherzer | 148.7 | WAS |
| +012+ | 6.58 | Sonny Gray | 157.3 | CIN |
| +020+ | 5.86 | Zack Greinke | 183.3 | TOT |
| +021+ | 5.74 | Patrick Corbin | 179.7 | WAS |
| +022+ | 5.65 | Shane Bieber | 188.7 | CLE |
| +023+ | 5.58 | Luis Castillo | 173.7 | CIN |
| +025+ | 5.42 | Charlie Morton | 176.3 | TBA |
| +026+ | 5.4 | Clayton Kershaw | 159 | LAN |
| +027+ | 5.3 | Lucas Giolito | 170.7 | CHA |
| +029+ | 5.25 | Jack Flaherty | 160.3 | SLN |
| +040+ | 4.6 | Walker Buehler | 159.3 | LAN |
| +042+ | 4.47 | Julio Teheran | 163.3 | ATL |
| +043+ | 4.41 | Stephen Strasburg | 185 | WAS |
| +051+ | 4.15 | Marcus Stroman | 160.3 | TOT |
| +052+ | 4.12 | Dakota Hudson | 153.7 | SLN |
| +053+ | 4.07 | Wade Miley | 156 | HOU |
| +055+ | 4.04 | Kyle Hendricks | 154 | CHN |
| +056+ | 3.94 | Mike Clevinger | 93 | CLE |
| +061+ | 3.65 | Mike Fiers | 169 | OAK |
| +066+ | 3.55 | Aaron Nola | 178.7 | PHI |
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