| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jacob deGrom | NYN | 10.34 | 202009110_NYN_TOR |
| Gerrit Cole | NYA | 5.74 | 202009111_BAL_NYA |
| Shane Bieber | CLE | 5.59 | 202009110_CLE_MIN |
| Aaron Nola | PHI | 4.72 | 202009111_PHI_MIA |
| Jack Flaherty | SLN | 2.51 | 202009101_DET_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Robbie Ray | TOR | -1.87 | 202009120_NYN_TOR |
| Kolby Allard | TEX | -1.83 | 202009122_OAK_TEX |
| Austin Voth | WAS | -1.68 | 202009100_ATL_WAS |
| Yusei Kikuchi | SEA | -1.52 | 202009110_SEA_ARI |
| Jordan Zimmermann | DET | -1.38 | 202009102_DET_SLN |
Based on accumulated WAA for this season up to 2020-09-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.28 | Shane Bieber | 64.7 | CLE |
| +003+ | 3.61 | Yu Darvish | 56 | CHN |
| +004+ | 3.61 | Jacob deGrom | 54 | NYN |
| +006+ | 3.57 | Trevor Bauer | 51.7 | CIN |
| +009+ | 3.01 | Lance Lynn | 64.3 | TEX |
| +011+ | 2.92 | Aaron Nola | 56.3 | PHI |
| +012+ | 2.83 | Kenta Maeda | 55.7 | MIN |
| +014+ | 2.79 | Dallas Keuchel | 53.3 | CHA |
| +015+ | 2.72 | Dinelson Lamet | 52.3 | SDN |
| +017+ | 2.67 | Dylan Bundy | 58 | ANA |
| +018+ | 2.6 | Corbin Burnes | 45.3 | MIL |
| +020+ | 2.51 | Zach Davies | 54.3 | SDN |
| +025+ | 2.25 | Clayton Kershaw | 41 | LAN |
| +030+ | 2.19 | Gerrit Cole | 59 | NYA |
| +034+ | 2.08 | Zach Plesac | 41 | CLE |
| +035+ | 1.99 | Adam Wainwright | 46.3 | SLN |
| +039+ | 1.9 | Kyle Hendricks | 65.7 | CHN |
| +041+ | 1.88 | Zac Gallen | 60 | ARI |
| +045+ | 1.85 | Tony Gonsolin | 28.7 | LAN |
| +047+ | 1.79 | Marco Gonzales | 50.7 | SEA |
| +048+ | 1.79 | Chris Bassitt | 49.3 | OAK |
| +054+ | 1.67 | Austin Gomber | 17 | SLN |
| +063+ | 1.58 | Dakota Hudson | 37 | SLN |
| +065+ | 1.54 | Luis Castillo | 52.3 | CIN |
| +067+ | 1.53 | Taijuan Walker | 42.7 | TOT |
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