| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jesus Luzardo | MIA | -5.12 | 202109260_MIA_TBA |
| Jordan Lyles | TEX | -3.2 | 202109250_TEX_BAL |
| Griffin Jax | MIN | -3.12 | 202109260_TOR_MIN |
| Vince Velasquez | SDN | -2.57 | 202109250_ATL_SDN |
| Jackson Kowar | KCA | -2.35 | 202109270_KCA_CLE |
Based on accumulated WAA for this season up to 2021-09-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.09 | Max Scherzer | 174 | TOT |
| +003+ | 7.44 | Walker Buehler | 195.7 | LAN |
| +004+ | 7.32 | Corbin Burnes | 165 | MIL |
| +005+ | 7.12 | Robbie Ray | 188 | TOR |
| +008+ | 7 | Zack Wheeler | 206.3 | PHI |
| +010+ | 6.86 | Brandon Woodruff | 175.3 | MIL |
| +012+ | 6.45 | Ranger Suarez | 99 | PHI |
| +019+ | 5.63 | Adam Wainwright | 200.3 | SLN |
| +020+ | 5.62 | Lance Lynn | 152 | CHA |
| +021+ | 5.59 | Marcus Stroman | 174 | NYN |
| +022+ | 5.54 | Kevin Gausman | 185 | SFN |
| +023+ | 5.48 | Carlos Rodon | 127.7 | CHA |
| +024+ | 5.45 | Sandy Alcantara | 200.7 | MIA |
| +032+ | 4.89 | Cal Quantrill | 149.7 | CLE |
| +038+ | 4.81 | Julio Urias | 179.3 | LAN |
| +040+ | 4.78 | Gerrit Cole | 175.3 | NYA |
| +042+ | 4.74 | Trevor Rogers | 128 | MIA |
| +043+ | 4.67 | Freddy Peralta | 144.3 | MIL |
| +055+ | 4.22 | Max Fried | 158.7 | ATL |
| +058+ | 4.11 | Joe Musgrove | 176.3 | SDN |
| +070+ | 3.77 | Chris Bassitt | 154 | OAK |
| +072+ | 3.7 | Lance McCullers | 156.3 | HOU |
| +076+ | 3.62 | Framber Valdez | 129.7 | HOU |
| +077+ | 3.55 | Logan Webb | 136.3 | SFN |
| +079+ | 3.51 | John Means | 143.7 | BAL |
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