| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jorge Lopez | BAL | -3.52 | 202106170_BAL_CLE |
| Randy Dobnak | MIN | -2.73 | 202106190_MIN_TEX |
| Carlos Martinez | SLN | -2.07 | 202106180_SLN_ATL |
| Mike Foltynewicz | TEX | -1.71 | 202106180_MIN_TEX |
| Wil Crowe | PIT | -1.64 | 202106190_CLE_PIT |
Based on accumulated WAA for this season up to 2021-06-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.61 | Jacob deGrom | 67 | NYN |
| +002+ | 5.41 | Kevin Gausman | 89.7 | SFN |
| +005+ | 4.46 | Zack Wheeler | 96.3 | PHI |
| +006+ | 4.34 | Brandon Woodruff | 88 | MIL |
| +007+ | 4.18 | Trevor Rogers | 81.7 | MIA |
| +008+ | 4.09 | Carlos Rodon | 73.7 | CHA |
| +011+ | 3.86 | Gerrit Cole | 89.7 | NYA |
| +012+ | 3.76 | Walker Buehler | 90.7 | LAN |
| +014+ | 3.66 | Lance Lynn | 75.7 | CHA |
| +015+ | 3.65 | Kyle Gibson | 77.7 | TEX |
| +016+ | 3.6 | Trevor Bauer | 95.7 | LAN |
| +017+ | 3.54 | Marcus Stroman | 84.7 | NYN |
| +018+ | 3.52 | Max Scherzer | 77.3 | WAS |
| +022+ | 3.29 | Joe Musgrove | 79 | SDN |
| +023+ | 3.21 | John Means | 71 | BAL |
| +025+ | 3.11 | Freddy Peralta | 75 | MIL |
| +028+ | 3.01 | Taijuan Walker | 72.7 | NYN |
| +030+ | 2.92 | Yu Darvish | 84 | SDN |
| +035+ | 2.74 | Tyler Glasnow | 88 | TBA |
| +037+ | 2.61 | Pablo Lopez | 85 | MIA |
| +043+ | 2.3 | Corbin Burnes | 68.7 | MIL |
| +053+ | 2.14 | Sandy Alcantara | 93.3 | MIA |
| +055+ | 2.09 | Sean Manaea | 81.3 | OAK |
| +059+ | 2.03 | Anthony DeSclafani | 80.7 | SFN |
| +061+ | 2.01 | Luis Garcia | 70.3 | HOU |
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