| Starter | Tm | Tier | Game |
|---|---|---|---|
| Shintaro Fujinami | OAK | -4.85 | 202304150_NYN_OAK |
| Spencer Turnbull | DET | -3.95 | 202304130_DET_TOR |
| Michael Grove | LAN | -3.56 | 202304150_CHN_LAN |
| Jose Berrios | TOR | -3.14 | 202304140_TBA_TOR |
| Carlos Carrasco | NYN | -2.23 | 202304150_NYN_OAK |
Based on accumulated WAA for this season up to 2023-04-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 1.74 | Shohei Ohtani | 19 | ANA |
| +004+ | 1.54 | Kyle Freeland | 18.7 | COL |
| +005+ | 1.51 | Sonny Gray | 17 | MIN |
| +008+ | 1.42 | Jeffrey Springs | 16 | TBA |
| +009+ | 1.41 | Kevin Gausman | 20 | TOR |
| +011+ | 1.39 | Marcus Stroman | 18 | CHN |
| +010+ | 1.39 | Pablo Lopez | 20 | MIN |
| +013+ | 1.34 | Gerrit Cole | 19.3 | NYA |
| +014+ | 1.34 | Graham Ashcraft | 19 | CIN |
| +015+ | 1.32 | Luis Castillo | 17.7 | SEA |
| +018+ | 1.28 | Anthony DeSclafani | 19 | SFN |
| +017+ | 1.28 | Justin Steele | 19 | CHN |
| +020+ | 1.27 | Dustin May | 18.3 | LAN |
| XXXXX | 1.23 | Julio Urias | 18 | LAN |
| XXXXX | 1.14 | Bryce Elder | 17.7 | ATL |
| XXXXX | 1.1 | Shane McClanahan | 17 | TBA |
| XXXXX | 1.09 | Patrick Sandoval | 14.7 | ANA |
| XXXXX | 1.06 | Dylan Cease | 16.3 | CHA |
| XXXXX | 1.06 | Framber Valdez | 19 | HOU |
| XXXXX | 1.06 | Jesus Luzardo | 18.7 | MIA |
| XXXXX | 1.03 | Hunter Brown | 18.7 | HOU |
| XXXXX | 0.93 | Jack Flaherty | 15.3 | SLN |
| XXXXX | 0.92 | Nick Lodolo | 17 | CIN |
| XXXXX | 0.88 | Brad Keller | 17 | KCA |
| XXXXX | 0.87 | Drey Jameson | 12.3 | ARI |
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