| Starter | Tm | Tier | Game |
|---|---|---|---|
| Max Scherzer | WAS | 5.71 | 202105190_WAS_CHN |
| John Means | BAL | 4.31 | 202105190_TBA_BAL |
| Clayton Kershaw | LAN | 3.95 | 202105190_ARI_LAN |
| Jack Flaherty | SLN | 3.29 | 202105190_PIT_SLN |
| Tyler Glasnow | TBA | 2.48 | 202105210_TBA_TOR |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jorge Lopez | BAL | -5.46 | 202105210_BAL_WAS |
| Trevor Williams | CHN | -4.84 | 202105200_WAS_CHN |
| Jose Quintana | ANA | -3.02 | 202105210_OAK_ANA |
| Jeff Hoffman | CIN | -2.69 | 202105210_MIL_CIN |
| Trevor Cahill | PIT | -2.64 | 202105190_PIT_SLN |
Based on accumulated WAA for this season up to 2021-05-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.34 | Kevin Gausman | 59.7 | SFN |
| +003+ | 3.26 | John Means | 58.3 | BAL |
| +004+ | 3.25 | Brandon Woodruff | 57 | MIL |
| +005+ | 3.19 | Jacob deGrom | 40 | NYN |
| +006+ | 3 | Trevor Bauer | 63.7 | LAN |
| +008+ | 2.89 | Carlos Rodon | 42.7 | CHA |
| +009+ | 2.87 | Gerrit Cole | 57.7 | NYA |
| +010+ | 2.81 | Yu Darvish | 54.7 | SDN |
| +011+ | 2.67 | Trevor Rogers | 51.7 | MIA |
| +014+ | 2.54 | Kyle Gibson | 60.3 | TEX |
| +015+ | 2.53 | Anthony DeSclafani | 53.3 | SFN |
| +017+ | 2.49 | Max Scherzer | 56.3 | WAS |
| +018+ | 2.49 | Lance Lynn | 40.7 | CHA |
| +022+ | 2.22 | Zack Wheeler | 60.7 | PHI |
| +027+ | 2.15 | Danny Duffy | 41.7 | KCA |
| +029+ | 2.1 | Corbin Burnes | 40.3 | MIL |
| +030+ | 2.09 | Alex Wood | 42 | SFN |
| +036+ | 1.96 | Jack Flaherty | 53.3 | SLN |
| +038+ | 1.92 | Taijuan Walker | 48.7 | NYN |
| +039+ | 1.92 | Matt Boyd | 47.7 | DET |
| +041+ | 1.91 | John Gant | 39.7 | SLN |
| +043+ | 1.83 | Joe Musgrove | 51 | SDN |
| +047+ | 1.71 | Hyun Jin Ryu | 46.7 | TOR |
| +048+ | 1.7 | Freddy Peralta | 45 | MIL |
| +050+ | 1.68 | Dylan Cease | 41 | CHA |
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