| Starter | Tm | Tier | Game |
|---|---|---|---|
| Matt Harvey | ANA | -5.79 | 201905230_MIN_ANA |
| Homer Bailey | KCA | -4.2 | 201905222_KCA_SLN |
| Ivan Nova | CHA | -2.88 | 201905220_CHA_HOU |
| Dan Straily | BAL | -2.68 | 201905220_NYA_BAL |
| Clayton Richard | TOR | -1.58 | 201905230_BOS_TOR |
Based on accumulated WAA for this season up to 2019-05-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.9 | Hyun-Jin Ryu | 59.3 | LAN |
| +004+ | 3.6 | Justin Verlander | 72.3 | HOU |
| +008+ | 3.41 | Mike Soroka | 44.7 | ATL |
| +010+ | 2.9 | Luis Castillo | 64.3 | CIN |
| +011+ | 2.86 | Chris Paddack | 51.3 | SDN |
| +015+ | 2.55 | Frankie Montas | 60 | OAK |
| +017+ | 2.54 | Mike Minor | 64.7 | TEX |
| +020+ | 2.43 | Jake Odorizzi | 53 | MIN |
| +021+ | 2.37 | Caleb Smith | 53 | MIA |
| +022+ | 2.34 | Zach Davies | 55.7 | MIL |
| +026+ | 2.25 | Marcus Stroman | 64 | TOR |
| +027+ | 2.23 | Zack Greinke | 71.7 | ARI |
| +031+ | 2.18 | Domingo German | 55.3 | NYA |
| +033+ | 2.14 | Zach Eflin | 62 | PHI |
| +034+ | 2.08 | Lucas Giolito | 52 | CHA |
| +037+ | 2.03 | Masahiro Tanaka | 64.3 | NYA |
| +038+ | 2.02 | Spencer Turnbull | 53.7 | DET |
| +039+ | 1.98 | Charlie Morton | 54.3 | TBA |
| +044+ | 1.89 | Stephen Strasburg | 72 | WAS |
| +045+ | 1.89 | Martin Perez | 58 | MIN |
| +049+ | 1.86 | Matt Boyd | 66.7 | DET |
| +050+ | 1.84 | Max Fried | 56.3 | ATL |
| +056+ | 1.77 | Jordan Lyles | 51.3 | PIT |
| +063+ | 1.68 | Jon Lester | 47 | CHN |
| +064+ | 1.67 | Patrick Corbin | 63.7 | WAS |
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