| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eddie Plank | OAK | 3.05 | 190409240_OAK_CHA |
| Joe McGinnity | SFN | 2.97 | 190409221_CIN_SFN |
| Cy Young | BOS | 2.43 | 190409230_BOS_DET |
| Bill Bernhard | CLE | 1.56 | 190409230_NYA_CLE |
| Jack Powell | NYA | 1.08 | 190409230_NYA_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Fisher | ATL | -8.43 | 190409242_CIN_ATL |
| Bill Duggleby | PHI | -5.54 | 190409242_SLN_PHI |
| Oscar Jones | LAN | -1.91 | 190409230_CHN_LAN |
| Win Kellum | CIN | -0.72 | 190409221_CIN_SFN |
| Howie Camnitz | PIT | -0.71 | 190409222_PIT_LAN |
Based on accumulated WAA for this season up to 1904-09-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.56 | Jack Chesbro | 392.7 | NYA |
| +002+ | 13.11 | Rube Waddell | 352.7 | OAK |
| +003+ | 10.03 | Frank Owen | 315 | CHA |
| +004+ | 9.98 | Eddie Plank | 336.3 | OAK |
| +005+ | 9.87 | Joe McGinnity | 385.3 | SFN |
| +006+ | 8.94 | Cy Young | 339 | BOS |
| +008+ | 7.77 | Jesse Tannehill | 281.7 | BOS |
| +009+ | 7.27 | Bill Bernhard | 299.7 | CLE |
| +010+ | 7.02 | Harry Howell | 273.7 | BAL |
| +011+ | 6.46 | Bill Dinneen | 283.7 | BOS |
| +012+ | 6.45 | Doc White | 187 | CHA |
| +014+ | 6.12 | Jack Powell | 349.7 | NYA |
| +015+ | 6.08 | Addie Joss | 165.3 | CLE |
| +018+ | 5.69 | George Mullin | 341 | DET |
| +019+ | 5.67 | Ed Killian | 317.7 | DET |
| +021+ | 5.34 | Earl Moore | 227.3 | CLE |
| +022+ | 5.27 | Norwood Gibson | 240 | BOS |
| +026+ | 4.64 | Fred Glade | 261.7 | BAL |
| +031+ | 4.37 | Weldon Henley | 270.7 | OAK |
| +037+ | 4.02 | Kid Nichols | 291 | SLN |
| +039+ | 3.93 | Otto Hess | 123.3 | CLE |
| +041+ | 3.83 | Patsy Flaherty | 262 | TOT |
| +043+ | 3.68 | Jake Weimer | 279.7 | CHN |
| +044+ | 3.49 | Bill Donovan | 279 | DET |
| +050+ | 2.97 | Roy Patterson | 133.7 | CHA |
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