| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jacob deGrom | NYN | 10.34 | 202009110_NYN_TOR |
| Clayton Kershaw | LAN | 7.05 | 202009090_LAN_ARI |
| Gerrit Cole | NYA | 5.74 | 202009111_BAL_NYA |
| Shane Bieber | CLE | 5.59 | 202009110_CLE_MIN |
| Aaron Nola | PHI | 4.72 | 202009111_PHI_MIA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rick Porcello | NYN | -2.52 | 202009090_BAL_NYN |
| Jorge Lopez | BAL | -2.19 | 202009090_BAL_NYN |
| Matthew Boyd | DET | -1.89 | 202009090_MIL_DET |
| Tyler Anderson | SFN | -1.76 | 202009090_SEA_SFN |
| Austin Voth | WAS | -1.68 | 202009100_ATL_WAS |
Based on accumulated WAA for this season up to 2020-09-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.27 | Shane Bieber | 64.7 | CLE |
| +003+ | 3.61 | Yu Darvish | 56 | CHN |
| +004+ | 3.6 | Jacob deGrom | 54 | NYN |
| +006+ | 3.56 | Trevor Bauer | 51.7 | CIN |
| +008+ | 2.96 | Lance Lynn | 64.3 | TEX |
| +010+ | 2.93 | Aaron Nola | 56.3 | PHI |
| +011+ | 2.84 | Kenta Maeda | 55.7 | MIN |
| +012+ | 2.83 | Zac Gallen | 55 | ARI |
| +014+ | 2.79 | Dallas Keuchel | 53.3 | CHA |
| +015+ | 2.72 | Dinelson Lamet | 52.3 | SDN |
| +016+ | 2.71 | Dylan Bundy | 58 | ANA |
| +018+ | 2.61 | Corbin Burnes | 45.3 | MIL |
| +020+ | 2.56 | Zack Wheeler | 51 | PHI |
| +022+ | 2.51 | Zach Davies | 54.3 | SDN |
| +024+ | 2.41 | Zach Plesac | 34 | CLE |
| +029+ | 2.25 | Clayton Kershaw | 41 | LAN |
| +030+ | 2.22 | Gerrit Cole | 59 | NYA |
| +036+ | 2 | Adam Wainwright | 46.3 | SLN |
| +044+ | 1.85 | Tony Gonsolin | 28.7 | LAN |
| +046+ | 1.8 | Marco Gonzales | 50.7 | SEA |
| +051+ | 1.68 | Austin Gomber | 17 | SLN |
| +056+ | 1.63 | Sixto Sanchez | 25 | MIA |
| +059+ | 1.58 | Brad Keller | 34.7 | KCA |
| +061+ | 1.54 | Luis Castillo | 52.3 | CIN |
| +062+ | 1.53 | Taijuan Walker | 42.7 | TOT |
_