| Starter | Tm | Tier | Game |
|---|---|---|---|
| Brady Singer | KCA | -6.6 | 202305270_WAS_KCA |
| Ken Waldichuk | OAK | -6.23 | 202305280_HOU_OAK |
| Joey Wentz | DET | -4.49 | 202305260_CHA_DET |
| Lance Lynn | CHA | -3.89 | 202305260_CHA_DET |
| Austin Gomber | COL | -3.26 | 202305280_NYN_COL |
Based on accumulated WAA for this season up to 2023-05-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 3.35 | Shane McClanahan | 64 | TBA |
| +005+ | 3.25 | Eduardo Rodriguez | 67.7 | DET |
| +007+ | 3.09 | Framber Valdez | 72 | HOU |
| +008+ | 3.01 | Bryce Elder | 58.3 | ATL |
| +009+ | 2.96 | Sonny Gray | 54.3 | MIN |
| +012+ | 2.77 | Joe Ryan | 61 | MIN |
| +014+ | 2.64 | Nathan Eovaldi | 69.3 | TEX |
| +025+ | 2.22 | Justin Steele | 65 | CHN |
| +026+ | 2.2 | Bryce Miller | 31.3 | SEA |
| +027+ | 2.19 | Luis Castillo | 63.7 | SEA |
| +028+ | 2.14 | Gerrit Cole | 73.7 | NYA |
| +029+ | 2.11 | Josiah Gray | 61.7 | WAS |
| +033+ | 1.99 | Shohei Ohtani | 65 | ANA |
| +034+ | 1.96 | Mitch Keller | 68.7 | PIT |
| +035+ | 1.94 | Zac Gallen | 66.7 | ARI |
| +038+ | 1.91 | Marcus Stroman | 64 | CHN |
| +037+ | 1.91 | Jon Gray | 57.7 | TEX |
| +039+ | 1.9 | Kevin Gausman | 68.3 | TOR |
| +041+ | 1.87 | Shane Bieber | 71 | CLE |
| +043+ | 1.86 | Logan Webb | 72 | SFN |
| +045+ | 1.85 | Spencer Strider | 63.7 | ATL |
| +044+ | 1.85 | Cristian Javier | 63.7 | HOU |
| +053+ | 1.71 | Alex Cobb | 62 | SFN |
| +056+ | 1.68 | Tony Gonsolin | 29.7 | LAN |
| +061+ | 1.65 | Merrill Kelly | 63.7 | ARI |
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