| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 10.36 | 190405050_OAK_BOS |
| Cy Young | BOS | 9.1 | 190405050_OAK_BOS |
| Joe McGinnity | SFN | 7.37 | 190405040_SFN_ATL |
| Doc White | CHA | 5.98 | 190405050_BAL_CHA |
| Ed Siever | BAL | 2.37 | 190405030_CHA_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Johnny Lush | PHI | -2.03 | 190405040_LAN_PHI |
| Joe Corbett | SLN | -0.9 | 190405040_SLN_CIN |
| Doc Scanlan | PIT | -0.9 | 190405030_PIT_CHN |
| Jack Hickey | CLE | -0.72 | 190405040_CLE_DET |
| Ed Poole | LAN | -0.61 | 190405030_LAN_PHI |
Based on accumulated WAA for this season up to 1904-05-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.94 | Rube Waddell | 47 | OAK |
| +002+ | 2.2 | Joe McGinnity | 50 | SFN |
| +003+ | 2.19 | Cy Young | 41 | BOS |
| +004+ | 1.99 | Norwood Gibson | 27 | BOS |
| +009+ | 1.57 | Jesse Tannehill | 27 | BOS |
| +010+ | 1.52 | Harry Howell | 27.3 | BAL |
| +011+ | 1.5 | Patsy Flaherty | 33 | CHA |
| +013+ | 1.47 | Red Donahue | 26 | CLE |
| +014+ | 1.39 | Bill Dinneen | 32 | BOS |
| +015+ | 1.38 | Jack Powell | 38.7 | NYA |
| +016+ | 1.36 | Ed Killian | 50 | DET |
| +017+ | 1.26 | Bill Bernhard | 45 | CLE |
| XXXXX | 1.16 | Frank Owen | 44 | CHA |
| XXXXX | 1.11 | Jack Cronin | 47 | LAN |
| XXXXX | 1.01 | Weldon Henley | 36 | OAK |
| XXXXX | 0.96 | Dummy Taylor | 34 | SFN |
| XXXXX | 0.96 | Togie Pittinger | 44 | ATL |
| XXXXX | 0.94 | Barney Pelty | 34 | BAL |
| XXXXX | 0.88 | Bill Donovan | 37 | DET |
| XXXXX | 0.83 | Doc White | 30 | CHA |
| XXXXX | 0.8 | Kaiser Wilhelm | 28 | ATL |
| XXXXX | 0.78 | Jack Chesbro | 44 | NYA |
| XXXXX | 0.77 | George Winter | 11 | BOS |
| XXXXX | 0.67 | Bob Rhoads | 17 | CLE |
| XXXXX | 0.65 | Eddie Plank | 42 | OAK |
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