| Starter | Tm | Tier | Game |
|---|---|---|---|
| Deacon Phillippe | PIT | 3.65 | 190304210_SLN_PIT |
| Christy Mathewson | SFN | 3.65 | 190304210_SFN_LAN |
| Vic Willis | ATL | 3.39 | 190304202_PHI_ATL |
| Cy Young | BOS | 3.39 | 190304202_OAK_BOS |
| Rube Waddell | OAK | 2.91 | 190304201_OAK_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack McFetridge | PHI | -0.43 | 190304201_PHI_ATL |
| Togie Pittinger | ATL | -0.43 | 190304201_PHI_ATL |
| Oscar Jones | LAN | -0.43 | 190304200_LAN_SFN |
| Mike O'Neill | SLN | -0.4 | 190304210_SLN_PIT |
| Eddie Plank | OAK | 0.21 | 190304202_OAK_BOS |
Based on accumulated WAA for this season up to 1903-04-21.
| Rank | WAA | Name | IP | Tm |
|---|
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