| Starter | Tm | Tier | Game |
|---|---|---|---|
| Kaiser Wilhelm | ATL | -3.3 | 190408290_ATL_CIN |
| Tully Sparks | PHI | -3.06 | 190408290_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 1904-08-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.24 | Rube Waddell | 312.3 | OAK |
| +002+ | 10.72 | Joe McGinnity | 328.3 | SFN |
| +003+ | 10.66 | Jack Chesbro | 321.7 | NYA |
| +004+ | 9.51 | Frank Owen | 285 | CHA |
| +005+ | 7.79 | Cy Young | 272.3 | BOS |
| +006+ | 7.75 | Eddie Plank | 277 | OAK |
| +008+ | 6.74 | Jesse Tannehill | 229.7 | BOS |
| +009+ | 6.13 | Ed Killian | 276.7 | DET |
| +010+ | 5.92 | Bill Dinneen | 224.7 | BOS |
| +012+ | 5.73 | Red Donahue | 207 | CLE |
| +013+ | 5.72 | Bill Bernhard | 244 | CLE |
| +014+ | 5.58 | Harry Howell | 216.7 | BAL |
| +016+ | 5.36 | George Mullin | 289 | DET |
| +018+ | 5.08 | Frank Smith | 141.3 | CHA |
| +021+ | 4.83 | Jack Powell | 284.7 | NYA |
| +022+ | 4.83 | Kid Nichols | 239 | SLN |
| +025+ | 4.45 | Patsy Flaherty | 229 | TOT |
| +026+ | 4.09 | Jake Weimer | 229.7 | CHN |
| +027+ | 4.05 | Bill Donovan | 234.3 | DET |
| +031+ | 3.88 | Doc White | 142 | CHA |
| +032+ | 3.8 | Fred Glade | 212.7 | BAL |
| +033+ | 3.75 | Norwood Gibson | 181 | BOS |
| +037+ | 3.51 | Addie Joss | 115.7 | CLE |
| +041+ | 3.16 | Weldon Henley | 204.7 | OAK |
| +044+ | 2.96 | Nick Altrock | 234 | CHA |
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