| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 6.87 | 190409052_OAK_NYA |
| Jack Chesbro | NYA | 5.76 | 190409051_OAK_NYA |
| Joe McGinnity | SFN | 4.16 | 190409060_ATL_SFN |
| Jesse Tannehill | BOS | 1.97 | 190409061_MIN_BOS |
| Harry Howell | BAL | 1.14 | 190409060_BAL_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Fisher | ATL | -8.94 | 190409060_ATL_SFN |
| Chick Fraser | PHI | -3.2 | 190409052_LAN_PHI |
| Chappie McFarland | SLN | -2.22 | 190409060_CHN_SLN |
| Oscar Jones | LAN | -1.76 | 190409052_LAN_PHI |
| Deacon Phillippe | PIT | -0.83 | 190409062_CIN_PIT |
Based on accumulated WAA for this season up to 1904-09-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.76 | Rube Waddell | 329.7 | OAK |
| +002+ | 12.16 | Jack Chesbro | 348.7 | NYA |
| +003+ | 10.2 | Joe McGinnity | 349.3 | SFN |
| +004+ | 9.67 | Frank Owen | 297 | CHA |
| +005+ | 8.6 | Eddie Plank | 295 | OAK |
| +007+ | 7.52 | Cy Young | 290.3 | BOS |
| +008+ | 7.34 | Jesse Tannehill | 247.7 | BOS |
| +009+ | 5.92 | Frank Smith | 158.3 | CHA |
| +010+ | 5.9 | Bill Dinneen | 242.7 | BOS |
| +011+ | 5.73 | Harry Howell | 241.7 | BAL |
| +013+ | 5.59 | Bill Bernhard | 252 | CLE |
| +016+ | 5.27 | Red Donahue | 224 | CLE |
| +018+ | 5 | Ed Killian | 292.7 | DET |
| +022+ | 4.73 | Jack Powell | 301.7 | NYA |
| +023+ | 4.68 | Fred Glade | 230.7 | BAL |
| +025+ | 4.62 | Jake Weimer | 246.7 | CHN |
| +026+ | 4.56 | Kid Nichols | 256 | SLN |
| +027+ | 4.5 | Doc White | 151 | CHA |
| +028+ | 4.42 | Addie Joss | 133.3 | CLE |
| +029+ | 4.31 | George Mullin | 306 | DET |
| +030+ | 4.18 | Norwood Gibson | 199 | BOS |
| +034+ | 3.84 | Bill Donovan | 251.3 | DET |
| +035+ | 3.8 | Patsy Flaherty | 238 | TOT |
| +039+ | 3.4 | Weldon Henley | 230.7 | OAK |
| +043+ | 3.12 | Nick Altrock | 243 | CHA |
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