| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 8.23 | 190408070_OAK_CHA |
| Joe McGinnity | SFN | 4.59 | 190408080_SLN_SFN |
| Cy Young | BOS | 3.61 | 190408090_BOS_DET |
| Frank Owen | CHA | 2.87 | 190408080_OAK_CHA |
| Ed Killian | DET | 1.37 | 190408080_BOS_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tully Sparks | PHI | -3.22 | 190408080_PIT_PHI |
| Vic Willis | ATL | -2.24 | 190408080_CIN_ATL |
| Jack Harper | CIN | -0.56 | 190408080_CIN_ATL |
| Buttons Briggs | CHN | -0.41 | 190408080_CHN_LAN |
| Mike Lynch | PIT | -0.4 | 190408080_PIT_PHI |
Based on accumulated WAA for this season up to 1904-08-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.77 | Rube Waddell | 252.3 | OAK |
| +002+ | 9.26 | Jack Chesbro | 272 | NYA |
| +003+ | 8.71 | Joe McGinnity | 274.3 | SFN |
| +004+ | 8.61 | Frank Owen | 242 | CHA |
| +005+ | 7.53 | Cy Young | 238.3 | BOS |
| +006+ | 7.44 | Eddie Plank | 243 | OAK |
| +008+ | 5.91 | Ed Killian | 231.3 | DET |
| +010+ | 5.12 | Jesse Tannehill | 184.7 | BOS |
| +011+ | 5.04 | Patsy Flaherty | 185 | TOT |
| +012+ | 4.93 | Frank Smith | 115.7 | CHA |
| +013+ | 4.86 | Earl Moore | 192.3 | CLE |
| +014+ | 4.71 | Red Donahue | 170 | CLE |
| +016+ | 4.38 | Bill Dinneen | 180.7 | BOS |
| +017+ | 4.33 | Harry Howell | 171 | BAL |
| +022+ | 3.85 | George Mullin | 243 | DET |
| +025+ | 3.65 | Fred Glade | 173 | BAL |
| +026+ | 3.49 | Bill Bernhard | 196 | CLE |
| +028+ | 3.42 | Jack Powell | 230.7 | NYA |
| +030+ | 3.25 | Norwood Gibson | 156 | BOS |
| +035+ | 3.01 | Nick Altrock | 196 | CHA |
| +036+ | 3 | Kid Nichols | 176 | SLN |
| +037+ | 2.75 | Jack Taylor | 226.3 | SLN |
| +040+ | 2.55 | Bill Donovan | 198 | DET |
| +041+ | 2.55 | Weldon Henley | 167.7 | OAK |
| +043+ | 2.52 | Addie Joss | 94.7 | CLE |
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