| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 7.52 | 190409010_BAL_OAK |
| Joe McGinnity | SFN | 5.26 | 190408311_SFN_CIN |
| Jack Chesbro | NYA | 4.98 | 190408310_CLE_NYA |
| Frank Owen | CHA | 3.69 | 190408310_CHA_OAK |
| Jesse Tannehill | BOS | 1.56 | 190409011_CLE_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Chick Fraser | PHI | -3.32 | 190408310_PHI_SLN |
| Oscar Jones | LAN | -1.9 | 190409020_LAN_PIT |
| Chappie McFarland | SLN | -0.82 | 190409010_PHI_SLN |
| Togie Pittinger | ATL | -0.6 | 190408310_ATL_PIT |
| Bob Ewing | CIN | -0.6 | 190408312_SFN_CIN |
Based on accumulated WAA for this season up to 1904-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.33 | Rube Waddell | 321.3 | OAK |
| +002+ | 11.22 | Jack Chesbro | 330.7 | NYA |
| +003+ | 10.96 | Joe McGinnity | 339.3 | SFN |
| +004+ | 9.8 | Frank Owen | 293 | CHA |
| +005+ | 8.32 | Cy Young | 281.3 | BOS |
| +006+ | 8.29 | Eddie Plank | 286 | OAK |
| +008+ | 6.67 | Jesse Tannehill | 238.7 | BOS |
| +009+ | 5.86 | Bill Dinneen | 233.7 | BOS |
| +011+ | 5.63 | Bill Bernhard | 252 | CLE |
| +012+ | 5.44 | Frank Smith | 149.3 | CHA |
| +014+ | 5.25 | Harry Howell | 224.7 | BAL |
| +015+ | 5.23 | Red Donahue | 215 | CLE |
| +017+ | 4.99 | Jack Powell | 293.7 | NYA |
| +018+ | 4.94 | Ed Killian | 283.7 | DET |
| +022+ | 4.69 | Kid Nichols | 239 | SLN |
| +025+ | 4.39 | Fred Glade | 221.7 | BAL |
| +027+ | 4.21 | Bill Donovan | 242.3 | DET |
| +028+ | 4.13 | Norwood Gibson | 190 | BOS |
| +029+ | 4.04 | George Mullin | 297 | DET |
| +030+ | 3.96 | Jake Weimer | 229.7 | CHN |
| +033+ | 3.95 | Addie Joss | 124.3 | CLE |
| +034+ | 3.81 | Doc White | 142 | CHA |
| +039+ | 3.32 | Weldon Henley | 213.7 | OAK |
| +047+ | 2.85 | Nick Altrock | 234 | CHA |
| +052+ | 2.41 | Otto Hess | 78.3 | CLE |
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