| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jordan Lyles | KCA | -8.07 | 202309010_BOS_KCA |
| Luis Severino | NYA | -3.92 | 202309020_NYA_HOU |
| Chris Flexen | COL | -3.76 | 202309010_TOR_COL |
| Lance Lynn | LAN | -3.67 | 202308310_ATL_LAN |
| Zach Davies | ARI | -2.78 | 202309010_BAL_ARI |
Based on accumulated WAA for this season up to 2023-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 6.43 | Blake Snell | 155 | SDN |
| +011+ | 5.37 | Gerrit Cole | 174 | NYA |
| +013+ | 4.98 | Sonny Gray | 157 | MIN |
| +015+ | 4.7 | Clayton Kershaw | 112.3 | LAN |
| +021+ | 4.1 | Justin Steele | 144 | CHN |
| +022+ | 4.04 | Kodai Senga | 143.3 | NYN |
| +029+ | 3.9 | Kyle Bradish | 139.7 | BAL |
| +031+ | 3.89 | Zac Gallen | 173.3 | ARI |
| +030+ | 3.89 | Luis Castillo | 169.3 | SEA |
| +032+ | 3.88 | Aaron Civale | 102.3 | TOT |
| +042+ | 3.57 | Tanner Bibee | 124.7 | CLE |
| +043+ | 3.56 | Michael Wacha | 107.3 | SDN |
| +047+ | 3.42 | Kevin Gausman | 155.3 | TOR |
| +049+ | 3.38 | Framber Valdez | 167.7 | HOU |
| +051+ | 3.36 | Charlie Morton | 147.7 | ATL |
| +055+ | 3.31 | Eduardo Rodriguez | 124.3 | DET |
| +054+ | 3.31 | Shawn Armstrong | 41.7 | TBA |
| +057+ | 3.24 | Javier Assad | 87 | CHN |
| +063+ | 3.08 | Bryce Elder | 155.3 | ATL |
| +065+ | 3.05 | Zach Eflin | 150.7 | TBA |
| +068+ | 2.99 | Jordan Montgomery | 156 | TOT |
| +070+ | 2.96 | Justin Verlander | 129.3 | TOT |
| +078+ | 2.79 | Corbin Burnes | 165 | MIL |
| +077+ | 2.79 | Merrill Kelly | 141.3 | ARI |
| +085+ | 2.68 | Zack Wheeler | 164 | PHI |
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