| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jacob deGrom | NYN | 10.24 | 202105090_ARI_NYN |
| Shane Bieber | CLE | 6.68 | 202105110_CHN_CLE |
| John Means | BAL | 3.08 | 202105110_BAL_NYN |
| Trevor Bauer | LAN | 2.5 | 202105090_LAN_ANA |
| Aaron Nola | PHI | 1.95 | 202105090_PHI_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jorge Lopez | BAL | -5.61 | 202105100_BOS_BAL |
| Jordan Lyles | TEX | -4.06 | 202105110_TEX_SFN |
| Jose Quintana | ANA | -3.11 | 202105090_LAN_ANA |
| Jeff Hoffman | CIN | -2.72 | 202105110_CIN_PIT |
| Mitch Keller | PIT | -1.95 | 202105100_CIN_PIT |
Based on accumulated WAA for this season up to 2021-05-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.44 | John Means | 52 | BAL |
| +002+ | 3.17 | Jacob deGrom | 40 | NYN |
| +004+ | 2.55 | Carlos Rodon | 31 | CHA |
| +005+ | 2.42 | Gerrit Cole | 44.7 | NYA |
| +006+ | 2.32 | Danny Duffy | 35.7 | KCA |
| +009+ | 2.21 | Kevin Gausman | 45.7 | SFN |
| +010+ | 2.19 | Matt Boyd | 41.7 | DET |
| +011+ | 2.15 | Brandon Woodruff | 41.7 | MIL |
| +014+ | 1.98 | Marcus Stroman | 40.7 | NYN |
| +016+ | 1.9 | Kyle Gibson | 47.3 | TEX |
| +017+ | 1.9 | Max Scherzer | 46.3 | WAS |
| +020+ | 1.81 | Tyler Glasnow | 49.3 | TBA |
| +021+ | 1.79 | Lance Lynn | 29.7 | CHA |
| +023+ | 1.78 | Trevor Rogers | 38 | MIA |
| +026+ | 1.72 | Huascar Ynoa | 40.3 | ATL |
| +029+ | 1.71 | Trevor Bauer | 50.3 | LAN |
| +028+ | 1.71 | Yu Darvish | 43.7 | SDN |
| +031+ | 1.65 | Wade Miley | 36 | CIN |
| +033+ | 1.63 | Ryan Weathers | 22.3 | SDN |
| +035+ | 1.59 | Anthony DeSclafani | 41.3 | SFN |
| +037+ | 1.57 | Alex Wood | 30 | SFN |
| +047+ | 1.43 | J. A. Happ | 28.3 | MIN |
| +052+ | 1.39 | Clayton Kershaw | 44.7 | LAN |
| +051+ | 1.39 | JT Brubaker | 38.3 | PIT |
| +054+ | 1.37 | Sandy Alcantara | 49.7 | MIA |
_