| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 8.63 | 190408190_CLE_OAK |
| Joe McGinnity | SFN | 5.2 | 190408180_PIT_SFN |
| Jack Chesbro | NYA | 3.67 | 190408190_CHA_NYA |
| Frank Owen | CHA | 3.33 | 190408200_CHA_NYA |
| Ed Killian | DET | 1.3 | 190408201_DET_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Kaiser Wilhelm | ATL | -3.6 | 190408180_CHN_ATL |
| Chick Fraser | PHI | -2.52 | 190408200_PHI_CIN |
| Oscar Jones | LAN | -1.96 | 190408180_CIN_LAN |
| Happy Townsend | MIN | -1.07 | 190408190_DET_MIN |
| Buttons Briggs | CHN | -0.41 | 190408180_CHN_ATL |
Based on accumulated WAA for this season up to 1904-08-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.03 | Rube Waddell | 285.3 | OAK |
| +002+ | 10.01 | Joe McGinnity | 301.3 | SFN |
| +003+ | 9.53 | Jack Chesbro | 301 | NYA |
| +004+ | 9.37 | Frank Owen | 269 | CHA |
| +006+ | 7.12 | Eddie Plank | 258 | OAK |
| +007+ | 6.77 | Cy Young | 254.3 | BOS |
| +008+ | 5.96 | Ed Killian | 259.3 | DET |
| +009+ | 5.78 | Earl Moore | 212.3 | CLE |
| +010+ | 5.72 | Jesse Tannehill | 211.7 | BOS |
| +012+ | 5.19 | Bill Bernhard | 226 | CLE |
| +013+ | 5.17 | Frank Smith | 124.7 | CHA |
| +014+ | 5.04 | Patsy Flaherty | 207 | TOT |
| +016+ | 4.9 | Harry Howell | 198 | BAL |
| +018+ | 4.7 | Bill Dinneen | 206.7 | BOS |
| +019+ | 4.68 | Red Donahue | 188 | CLE |
| +021+ | 4.36 | Fred Glade | 191 | BAL |
| +022+ | 4.23 | George Mullin | 273 | DET |
| +027+ | 3.98 | Kid Nichols | 212 | SLN |
| +028+ | 3.88 | Jack Powell | 255.7 | NYA |
| +031+ | 3.51 | Weldon Henley | 195.7 | OAK |
| +033+ | 3.42 | Bill Donovan | 216 | DET |
| +035+ | 3.18 | Doc White | 134 | CHA |
| +041+ | 2.82 | Jack Taylor | 244.7 | SLN |
| +045+ | 2.56 | Nick Altrock | 217 | CHA |
| +046+ | 2.52 | Jake Weimer | 202.7 | CHN |
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