| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 5.45 | 190408281_SFN_SLN |
| Jack Chesbro | NYA | 4.74 | 190408272_BAL_NYA |
| Frank Owen | CHA | 3.61 | 190408270_CHA_BOS |
| Eddie Plank | OAK | 2.69 | 190408270_DET_OAK |
| Jesse Tannehill | BOS | 1.74 | 190408270_CHA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vic Willis | ATL | -4.59 | 190408260_ATL_SLN |
| Chick Fraser | PHI | -3.05 | 190408270_PHI_CHN |
| Oscar Jones | LAN | -2.17 | 190408270_LAN_PIT |
| Chappie McFarland | SLN | -0.99 | 190408282_SFN_SLN |
| Willie Sudhoff | BAL | -0.57 | 190408272_BAL_NYA |
Based on accumulated WAA for this season up to 1904-08-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.78 | Rube Waddell | 303.3 | OAK |
| +002+ | 10.75 | Joe McGinnity | 328.3 | SFN |
| +003+ | 10.69 | Jack Chesbro | 321.7 | NYA |
| +004+ | 9.52 | Frank Owen | 285 | CHA |
| +005+ | 7.81 | Cy Young | 272.3 | BOS |
| +006+ | 7.78 | Eddie Plank | 277 | OAK |
| +008+ | 6.76 | Jesse Tannehill | 229.7 | BOS |
| +010+ | 5.75 | Red Donahue | 207 | CLE |
| +011+ | 5.72 | Ed Killian | 268.3 | DET |
| +012+ | 5.58 | Harry Howell | 216.7 | BAL |
| +013+ | 5.46 | Bill Bernhard | 235 | CLE |
| +015+ | 5.36 | George Mullin | 289 | DET |
| +016+ | 5.24 | Bill Dinneen | 215.7 | BOS |
| +017+ | 5.09 | Frank Smith | 141.3 | CHA |
| +020+ | 4.78 | Jack Powell | 275.7 | NYA |
| +023+ | 4.56 | Kid Nichols | 230 | SLN |
| +025+ | 4.49 | Patsy Flaherty | 229 | TOT |
| +026+ | 4.44 | Fred Glade | 204.7 | BAL |
| +028+ | 4.05 | Bill Donovan | 234.3 | DET |
| +031+ | 3.88 | Doc White | 142 | CHA |
| +032+ | 3.77 | Norwood Gibson | 181 | BOS |
| +036+ | 3.53 | Addie Joss | 115.7 | CLE |
| +037+ | 3.41 | Jake Weimer | 220.7 | CHN |
| +040+ | 3.18 | Weldon Henley | 204.7 | OAK |
| +046+ | 2.96 | Nick Altrock | 226 | CHA |
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