| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walker Buehler | LAN | 7.6 | 202109110_SDN_LAN |
| Robbie Ray | TOR | 4.98 | 202109100_TOR_BAL |
| Corbin Burnes | MIL | 4.33 | 202109110_MIL_CLE |
| Kevin Gausman | SFN | 4.22 | 202109110_SFN_CHN |
| Zack Wheeler | PHI | 3.98 | 202109110_COL_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Keegan Akin | BAL | -4.62 | 202109112_TOR_BAL |
| Jesus Luzardo | MIA | -3.74 | 202109090_NYN_MIA |
| Wil Crowe | PIT | -2.62 | 202109110_WAS_PIT |
| Griffin Jax | MIN | -2.39 | 202109100_KCA_MIN |
| Michael Wacha | TBA | -2.23 | 202109100_TBA_DET |
Based on accumulated WAA for this season up to 2021-09-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.14 | Walker Buehler | 186 | LAN |
| +003+ | 7.22 | Max Scherzer | 154 | TOT |
| +006+ | 6.88 | Corbin Burnes | 152 | MIL |
| +007+ | 6.52 | Brandon Woodruff | 163.3 | MIL |
| +008+ | 6.34 | Zack Wheeler | 195.3 | PHI |
| +009+ | 6.25 | Robbie Ray | 170.3 | TOR |
| +010+ | 5.98 | Kevin Gausman | 170 | SFN |
| +012+ | 5.73 | Marcus Stroman | 163 | NYN |
| +015+ | 5.54 | Carlos Rodon | 124.7 | CHA |
| +016+ | 5.5 | Adam Wainwright | 184.3 | SLN |
| +018+ | 5.46 | Gerrit Cole | 158.7 | NYA |
| +020+ | 5.38 | Lance Lynn | 135.7 | CHA |
| +022+ | 5.21 | Ranger Suarez | 78 | PHI |
| +031+ | 4.73 | Wade Miley | 155.7 | CIN |
| +034+ | 4.62 | Joe Musgrove | 159.7 | SDN |
| +035+ | 4.48 | Julio Urias | 163.3 | LAN |
| +036+ | 4.43 | Freddy Peralta | 127 | MIL |
| +042+ | 4.27 | Sandy Alcantara | 180.7 | MIA |
| +044+ | 4.22 | Logan Webb | 119.3 | SFN |
| +045+ | 4.21 | Trevor Rogers | 118.7 | MIA |
| +064+ | 3.67 | Cal Quantrill | 130.3 | CLE |
| +067+ | 3.46 | Chris Bassitt | 151 | OAK |
| +075+ | 3.21 | Kyle Gibson | 160 | TOT |
| +076+ | 3.2 | Lance McCullers | 138.3 | HOU |
| +090+ | 2.87 | Charlie Morton | 165 | ATL |
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