| Starter | Tm | Tier | Game |
|---|---|---|---|
| J.A. Happ | SLN | -7.46 | 202108040_ATL_SLN |
| Matt Harvey | BAL | -4.82 | 202108040_BAL_NYA |
| Dylan Bundy | ANA | -3.78 | 202108050_ANA_TEX |
| Jake Arrieta | CHN | -2.96 | 202108050_CHN_COL |
| Jean Carlos Mejia | CLE | -2.88 | 202108040_CLE_TOR |
Based on accumulated WAA for this season up to 2021-08-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 6.77 | Walker Buehler | 141.7 | LAN |
| +006+ | 5.71 | Brandon Woodruff | 131.3 | MIL |
| +007+ | 5.67 | Zack Wheeler | 147 | PHI |
| +008+ | 5.63 | Kevin Gausman | 132.3 | SFN |
| +009+ | 5.57 | Lance Lynn | 108.7 | CHA |
| +011+ | 5.09 | Freddy Peralta | 114 | MIL |
| +017+ | 4.37 | Trevor Rogers | 110 | MIA |
| +018+ | 4.34 | Marcus Stroman | 122.3 | NYN |
| +019+ | 4.34 | Carlos Rodon | 104.7 | CHA |
| +022+ | 4.23 | Max Scherzer | 118 | TOT |
| +023+ | 4.11 | Corbin Burnes | 106 | MIL |
| +030+ | 3.74 | Kyle Gibson | 119.7 | TOT |
| +032+ | 3.6 | Joe Musgrove | 122.3 | SDN |
| +035+ | 3.51 | Robbie Ray | 124.3 | TOR |
| +039+ | 3.4 | Gerrit Cole | 130.3 | NYA |
| +046+ | 3.22 | Ranger Suarez | 43.3 | PHI |
| +048+ | 3.21 | Sandy Alcantara | 132.7 | MIA |
| +049+ | 3.19 | Wade Miley | 114 | CIN |
| +056+ | 2.96 | Hyun Jin Ryu | 123 | TOR |
| +057+ | 2.94 | John Means | 88.7 | BAL |
| +063+ | 2.77 | Chris Bassitt | 137 | OAK |
| +064+ | 2.74 | Lance McCullers | 104.3 | HOU |
| +065+ | 2.71 | Jose Berrios | 127.7 | TOT |
| +069+ | 2.65 | Sean Manaea | 127 | OAK |
| +073+ | 2.58 | Aaron Loup | 36 | NYN |
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