| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 8.23 | 190408070_OAK_CHA |
| Joe McGinnity | SFN | 4.59 | 190408080_SLN_SFN |
| Jack Chesbro | NYA | 3.57 | 190408060_NYA_CLE |
| Frank Owen | CHA | 2.87 | 190408080_OAK_CHA |
| Ed Killian | DET | 1.37 | 190408080_BOS_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Fisher | ATL | -7.47 | 190408060_CIN_ATL |
| Tully Sparks | PHI | -3.22 | 190408080_PIT_PHI |
| Oscar Jones | LAN | -2.38 | 190408060_CHN_LAN |
| Jesse Stovall | DET | -1.34 | 190408060_BOS_DET |
| Jack Harper | CIN | -0.56 | 190408080_CIN_ATL |
Based on accumulated WAA for this season up to 1904-08-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.77 | Rube Waddell | 252.3 | OAK |
| +002+ | 9.24 | Jack Chesbro | 272 | NYA |
| +003+ | 8.71 | Joe McGinnity | 274.3 | SFN |
| +004+ | 8.62 | Frank Owen | 242 | CHA |
| +005+ | 7.5 | Cy Young | 230.3 | BOS |
| +006+ | 7.44 | Eddie Plank | 243 | OAK |
| +008+ | 5.9 | Ed Killian | 231.3 | DET |
| +010+ | 5.11 | Jesse Tannehill | 184.7 | BOS |
| +011+ | 5.04 | Patsy Flaherty | 185 | TOT |
| +012+ | 4.93 | Frank Smith | 115.7 | CHA |
| +013+ | 4.76 | Earl Moore | 183.3 | CLE |
| +014+ | 4.72 | Red Donahue | 170 | CLE |
| +015+ | 4.37 | Bill Dinneen | 180.7 | BOS |
| +016+ | 4.33 | Harry Howell | 171 | BAL |
| +022+ | 3.84 | George Mullin | 243 | DET |
| +025+ | 3.71 | Jack Powell | 226.7 | NYA |
| +026+ | 3.65 | Fred Glade | 173 | BAL |
| +027+ | 3.49 | Bill Bernhard | 196 | CLE |
| +030+ | 3.23 | Norwood Gibson | 156 | BOS |
| +033+ | 3.13 | Jack Taylor | 218.3 | SLN |
| +036+ | 3.02 | Nick Altrock | 196 | CHA |
| +037+ | 2.99 | Kid Nichols | 176 | SLN |
| +041+ | 2.55 | Weldon Henley | 167.7 | OAK |
| +042+ | 2.52 | Addie Joss | 94.7 | CLE |
| +044+ | 2.48 | Ed Siever | 155.3 | BAL |
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