| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Chesbro | NYA | 6.5 | 190410040_NYA_BAL |
| Cy Young | BOS | 3.32 | 190410050_BOS_CHA |
| Joe McGinnity | SFN | 2.41 | 190410041_SLN_SFN |
| Bill Bernhard | CLE | 1.86 | 190410032_OAK_CLE |
| Harry Howell | BAL | 1.47 | 190410030_NYA_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Duggleby | PHI | -4.72 | 190410031_PIT_PHI |
| Vic Willis | ATL | -2.82 | 190410040_CHN_ATL |
| Oscar Jones | LAN | -1.81 | 190410031_CIN_LAN |
| Happy Townsend | MIN | -0.3 | 190410052_MIN_DET |
| Al Orth | NYA | -0.28 | 190410030_NYA_BAL |
Based on accumulated WAA for this season up to 1904-10-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 14.44 | Jack Chesbro | 432.7 | NYA |
| +002+ | 13.55 | Rube Waddell | 370 | OAK |
| +003+ | 10.45 | Cy Young | 373 | BOS |
| +007+ | 8.85 | Joe McGinnity | 408.3 | SFN |
| +008+ | 7.78 | Bill Bernhard | 314.7 | CLE |
| +009+ | 7.69 | Doc White | 219 | CHA |
| +010+ | 7.62 | Jesse Tannehill | 281.7 | BOS |
| +011+ | 7.37 | Bill Dinneen | 317.7 | BOS |
| +012+ | 6.96 | Harry Howell | 291.7 | BAL |
| +013+ | 6.69 | Addie Joss | 183.3 | CLE |
| +015+ | 6.37 | Jack Powell | 383.7 | NYA |
| +018+ | 6.16 | Norwood Gibson | 265 | BOS |
| +020+ | 5.9 | George Mullin | 368.3 | DET |
| +019+ | 5.9 | Fred Glade | 288.7 | BAL |
| +021+ | 5.63 | Ed Killian | 323.7 | DET |
| +023+ | 5.36 | Red Donahue | 277 | CLE |
| +028+ | 4.97 | Frank Smith | 194.3 | CHA |
| +030+ | 4.81 | Weldon Henley | 295.7 | OAK |
| +031+ | 4.78 | Otto Hess | 141.3 | CLE |
| +035+ | 4.45 | Kid Nichols | 308 | SLN |
| +046+ | 3.49 | Roy Patterson | 155.7 | CHA |
| +052+ | 3.04 | Jake Weimer | 306.7 | CHN |
| +058+ | 2.59 | Patsy Flaherty | 278 | TOT |
| +061+ | 2.14 | Christy Mathewson | 366.3 | SFN |
| +062+ | 2.14 | Ed Siever | 209 | BAL |
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