| Starter | Tm | Tier | Game |
|---|---|---|---|
| Robbie Ray | TOR | 4.61 | 202109200_TOR_TBA |
| Brandon Woodruff | MIL | 3.95 | 202109210_SLN_MIL |
| Marcus Stroman | NYN | 3.16 | 202109210_NYN_BOS |
| Gerrit Cole | NYA | 3.14 | 202109190_CLE_NYA |
| Kevin Gausman | SFN | 2.85 | 202109210_SFN_SDN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jake Arrieta | SDN | -5.99 | 202109190_SDN_SLN |
| J.A. Happ | SLN | -4.74 | 202109190_SDN_SLN |
| Jesus Luzardo | MIA | -3.99 | 202109200_WAS_MIA |
| Griffin Jax | MIN | -2.44 | 202109210_MIN_CHN |
| Mitch Keller | PIT | -2.31 | 202109210_PIT_CIN |
Based on accumulated WAA for this season up to 2021-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.63 | Max Scherzer | 169 | TOT |
| +002+ | 8.09 | Walker Buehler | 192 | LAN |
| +006+ | 6.84 | Brandon Woodruff | 175.3 | MIL |
| +007+ | 6.82 | Corbin Burnes | 158 | MIL |
| +009+ | 6.67 | Robbie Ray | 182 | TOR |
| +010+ | 6.59 | Zack Wheeler | 200.3 | PHI |
| +015+ | 6.21 | Lance Lynn | 146 | CHA |
| +014+ | 6.21 | Adam Wainwright | 196.3 | SLN |
| +018+ | 5.55 | Ranger Suarez | 90 | PHI |
| +019+ | 5.52 | Marcus Stroman | 174 | NYN |
| +021+ | 5.42 | Sandy Alcantara | 194.7 | MIA |
| +020+ | 5.42 | Carlos Rodon | 127.7 | CHA |
| +028+ | 5.14 | Kevin Gausman | 179 | SFN |
| +032+ | 4.97 | Freddy Peralta | 139 | MIL |
| +036+ | 4.86 | Cal Quantrill | 143.7 | CLE |
| +037+ | 4.8 | Gerrit Cole | 169.3 | NYA |
| +039+ | 4.7 | Trevor Rogers | 128 | MIA |
| +048+ | 4.28 | Julio Urias | 174.3 | LAN |
| +053+ | 4.14 | Joe Musgrove | 171.3 | SDN |
| +056+ | 3.98 | Logan Webb | 132.3 | SFN |
| +064+ | 3.72 | Lance McCullers | 150.3 | HOU |
| +067+ | 3.62 | John Means | 138.7 | BAL |
| +074+ | 3.45 | Chris Bassitt | 151 | OAK |
| +076+ | 3.41 | Jose Berrios | 180 | TOT |
| +079+ | 3.38 | Anthony DeSclafani | 158.7 | SFN |
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