| Starter | Tm | Tier | Game |
|---|---|---|---|
| Matt Harvey | BAL | -6.52 | 202107300_BAL_DET |
| Mike Foltynewicz | TEX | -5.08 | 202108010_SEA_TEX |
| Jake Arrieta | CHN | -3.32 | 202107300_CHN_WAS |
| Mitch Keller | PIT | -2.52 | 202108010_PHI_PIT |
| Jean Carlos Mejia | CLE | -2.36 | 202107300_CLE_CHA |
Based on accumulated WAA for this season up to 2021-08-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 6.39 | Walker Buehler | 135.7 | LAN |
| +006+ | 5.79 | Zack Wheeler | 139.7 | PHI |
| +007+ | 5.72 | Brandon Woodruff | 131.3 | MIL |
| +008+ | 5.58 | Lance Lynn | 108.7 | CHA |
| +010+ | 5.27 | Kevin Gausman | 126.3 | SFN |
| +013+ | 4.94 | Freddy Peralta | 108 | MIL |
| +018+ | 4.37 | Trevor Rogers | 110 | MIA |
| +019+ | 4.34 | Carlos Rodon | 104.7 | CHA |
| +020+ | 4.32 | Marcus Stroman | 122.3 | NYN |
| +022+ | 4.12 | Corbin Burnes | 106 | MIL |
| +026+ | 3.98 | Max Scherzer | 111 | WAS |
| +030+ | 3.74 | Kyle Gibson | 119.7 | TOT |
| +036+ | 3.4 | Gerrit Cole | 130.3 | NYA |
| +039+ | 3.35 | Robbie Ray | 118.3 | TOR |
| +041+ | 3.28 | Sean Manaea | 122.7 | OAK |
| +043+ | 3.22 | Joe Musgrove | 116.3 | SDN |
| +046+ | 3.2 | Sandy Alcantara | 132.7 | MIA |
| +048+ | 3.18 | Wade Miley | 114 | CIN |
| +052+ | 2.96 | Anthony DeSclafani | 122 | SFN |
| +055+ | 2.92 | John Means | 88.7 | BAL |
| +062+ | 2.78 | Chris Bassitt | 137 | OAK |
| +068+ | 2.7 | Jose Berrios | 127.7 | TOT |
| +066+ | 2.7 | Hyun Jin Ryu | 116 | TOR |
| +074+ | 2.48 | Danny Duffy | 61 | KCA |
| +080+ | 2.37 | Aaron Loup | 34 | NYN |
_