| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 11.23 | 190405230_CLE_OAK |
| Joe McGinnity | SFN | 11.17 | 190405210_SFN_CHN |
| Cy Young | BOS | 9.04 | 190405230_BAL_BOS |
| Bill Donovan | DET | 2.14 | 190405230_DET_MIN |
| Deacon Phillippe | PIT | 1.33 | 190405230_ATL_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tully Sparks | PHI | -2.88 | 190405210_PHI_CIN |
| Jack Sutthoff | CIN | -1.51 | 190405210_PHI_CIN |
| Watty Lee | PIT | -1.06 | 190405210_ATL_PIT |
| Beany Jacobson | MIN | -0.52 | 190405230_DET_MIN |
| Joe Corbett | SLN | -0.45 | 190405220_LAN_SLN |
Based on accumulated WAA for this season up to 1904-05-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.99 | Rube Waddell | 94 | OAK |
| +002+ | 4.85 | Joe McGinnity | 87 | SFN |
| +003+ | 3.72 | Cy Young | 74 | BOS |
| +004+ | 3.68 | Red Donahue | 62 | CLE |
| +005+ | 3.47 | Jesse Tannehill | 60.7 | BOS |
| +006+ | 2.73 | Frank Owen | 80 | CHA |
| +007+ | 2.49 | Bill Dinneen | 59 | BOS |
| +009+ | 2.4 | Norwood Gibson | 45 | BOS |
| +013+ | 2.31 | Jack Chesbro | 92 | NYA |
| +015+ | 2.21 | Ed Killian | 78.3 | DET |
| +019+ | 1.83 | Fred Glade | 46.7 | BAL |
| +020+ | 1.82 | Eddie Plank | 78 | OAK |
| +023+ | 1.7 | Harry Howell | 53.3 | BAL |
| +026+ | 1.43 | Bill Bernhard | 70 | CLE |
| +032+ | 1.29 | Casey Patten | 78.7 | MIN |
| XXXXX | 1.18 | Weldon Henley | 67.3 | OAK |
| XXXXX | 1.18 | Jake Weimer | 69.3 | CHN |
| XXXXX | 0.87 | George Mullin | 92 | DET |
| XXXXX | 0.87 | Ed Walsh | 21 | CHA |
| XXXXX | 0.87 | Kaiser Wilhelm | 53 | ATL |
| XXXXX | 0.62 | Jack Cronin | 79 | LAN |
| XXXXX | 0.6 | Chief Bender | 18 | OAK |
| XXXXX | 0.59 | Jack Powell | 73.7 | NYA |
| XXXXX | 0.57 | Earl Moore | 26 | CLE |
| XXXXX | 0.55 | Doc White | 48 | CHA |
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