| Starter | Tm | Tier | Game |
|---|---|---|---|
| Brady Singer | KCA | -7.82 | 202305110_CHA_KCA |
| Lance Lynn | CHA | -3.48 | 202305100_CHA_KCA |
| David Peterson | NYN | -2.88 | 202305090_NYN_CIN |
| Kyle Muller | OAK | -2.08 | 202305100_OAK_NYA |
| Sean Manaea | SFN | -1.73 | 202305100_WAS_SFN |
Based on accumulated WAA for this season up to 2023-05-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.12 | Eduardo Rodriguez | 51.7 | DET |
| +003+ | 2.75 | Alex Cobb | 47.7 | SFN |
| +004+ | 2.68 | Justin Steele | 49.3 | CHN |
| +006+ | 2.59 | Shane McClanahan | 46 | TBA |
| +005+ | 2.59 | Sonny Gray | 40 | MIN |
| +007+ | 2.54 | Gerrit Cole | 51.7 | NYA |
| +012+ | 2.34 | Bryce Elder | 41.3 | ATL |
| +014+ | 2.22 | Framber Valdez | 53 | HOU |
| +017+ | 2.17 | Zac Gallen | 49.7 | ARI |
| +016+ | 2.17 | Clayton Kershaw | 49.7 | LAN |
| +020+ | 2.06 | Marcus Stroman | 47.3 | CHN |
| +023+ | 1.87 | Nathan Eovaldi | 53.3 | TEX |
| +027+ | 1.82 | Shane Bieber | 51.7 | CLE |
| +028+ | 1.81 | Dane Dunning | 31.3 | TEX |
| +033+ | 1.72 | Mitch Keller | 49.7 | PIT |
| +032+ | 1.72 | Joe Ryan | 44 | MIN |
| +039+ | 1.62 | Drew Rasmussen | 44.7 | TBA |
| +043+ | 1.55 | Shohei Ohtani | 46 | ANA |
| +044+ | 1.53 | George Kirby | 44.7 | SEA |
| +046+ | 1.51 | Luis Castillo | 46.7 | SEA |
| +048+ | 1.46 | Dustin May | 40.3 | LAN |
| +049+ | 1.44 | Anthony DeSclafani | 45 | SFN |
| +053+ | 1.37 | Josiah Gray | 45.7 | WAS |
| +052+ | 1.37 | Spencer Strider | 40 | ATL |
| +062+ | 1.29 | Bailey Ober | 24.3 | MIN |
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