| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walker Buehler | LAN | 10.35 | 202109050_LAN_SFN |
| Corbin Burnes | MIL | 4.95 | 202109050_SLN_MIL |
| Robbie Ray | TOR | 4.32 | 202109050_OAK_TOR |
| Marcus Stroman | NYN | 3.4 | 202109041_NYN_WAS |
| Adam Wainwright | SLN | 2.93 | 202109030_SLN_MIL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jake Arrieta | SDN | -5.81 | 202109030_HOU_SDN |
| Keegan Akin | BAL | -3.86 | 202109050_BAL_NYA |
| Jesus Luzardo | MIA | -3.52 | 202109030_PHI_MIA |
| Randy Dobnak | MIN | -2.32 | 202109030_MIN_TBA |
| Michael Wacha | TBA | -2.15 | 202109030_MIN_TBA |
Based on accumulated WAA for this season up to 2021-09-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.83 | Walker Buehler | 179 | LAN |
| +004+ | 6.75 | Brandon Woodruff | 157.3 | MIL |
| +006+ | 6.5 | Robbie Ray | 166 | TOR |
| +007+ | 6.42 | Max Scherzer | 146 | TOT |
| +008+ | 6.08 | Corbin Burnes | 144 | MIL |
| +009+ | 5.95 | Kevin Gausman | 157 | SFN |
| +012+ | 5.51 | Adam Wainwright | 176 | SLN |
| +013+ | 5.49 | Gerrit Cole | 155 | NYA |
| +016+ | 5.36 | Lance Lynn | 135.7 | CHA |
| +017+ | 5.29 | Marcus Stroman | 156.7 | NYN |
| +018+ | 5.25 | Zack Wheeler | 182.7 | PHI |
| +020+ | 5.23 | Carlos Rodon | 119.7 | CHA |
| +024+ | 4.81 | Ranger Suarez | 72 | PHI |
| +030+ | 4.61 | Joe Musgrove | 153.7 | SDN |
| +031+ | 4.61 | Trevor Rogers | 114.3 | MIA |
| +036+ | 4.27 | Freddy Peralta | 123.3 | MIL |
| +038+ | 4.21 | Wade Miley | 148.7 | CIN |
| +042+ | 4.15 | Logan Webb | 112.3 | SFN |
| +054+ | 3.75 | Julio Urias | 156.3 | LAN |
| +058+ | 3.57 | Sandy Alcantara | 171.7 | MIA |
| +061+ | 3.44 | Chris Bassitt | 151 | OAK |
| +065+ | 3.35 | Kyle Gibson | 155.3 | TOT |
| +067+ | 3.31 | Shohei Ohtani | 112 | ANA |
| +077+ | 3.11 | Cal Quantrill | 122.7 | CLE |
| +084+ | 3.02 | Lance McCullers | 132.3 | HOU |
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