| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 4.88 | 190408041_CHN_SFN |
| Cy Young | BOS | 3.87 | 190408050_BOS_DET |
| Jack Chesbro | NYA | 3.63 | 190408030_NYA_DET |
| Eddie Plank | OAK | 2.85 | 190408050_OAK_CHA |
| Frank Owen | CHA | 2.66 | 190408050_OAK_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Duggleby | PHI | -7.24 | 190408050_CIN_PHI |
| Tom Fisher | ATL | -6.01 | 190408032_SLN_ATL |
| Happy Townsend | MIN | -1.84 | 190408050_MIN_BAL |
| Jack Harper | CIN | -0.73 | 190408032_CIN_PHI |
| Roscoe Miller | PIT | -0.7 | 190408030_PIT_LAN |
Based on accumulated WAA for this season up to 1904-08-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.43 | Rube Waddell | 243.3 | OAK |
| +002+ | 9.1 | Jack Chesbro | 263 | NYA |
| +003+ | 8.68 | Joe McGinnity | 266.3 | SFN |
| +004+ | 8.3 | Frank Owen | 233 | CHA |
| +005+ | 7.46 | Cy Young | 230.3 | BOS |
| +006+ | 7.1 | Eddie Plank | 234 | OAK |
| +008+ | 5.61 | Patsy Flaherty | 177 | TOT |
| +010+ | 5.19 | Ed Killian | 222.3 | DET |
| +011+ | 4.99 | Jesse Tannehill | 175.7 | BOS |
| +012+ | 4.76 | Earl Moore | 183.3 | CLE |
| +013+ | 4.62 | Frank Smith | 106.7 | CHA |
| +015+ | 4.31 | Harry Howell | 171 | BAL |
| +016+ | 4.19 | Red Donahue | 161 | CLE |
| +018+ | 4.12 | Bill Dinneen | 172.7 | BOS |
| +021+ | 3.97 | Fred Glade | 164 | BAL |
| +023+ | 3.8 | George Mullin | 243 | DET |
| +024+ | 3.67 | Jack Powell | 226.7 | NYA |
| +028+ | 3.49 | Bill Bernhard | 196 | CLE |
| +029+ | 3.21 | Norwood Gibson | 156 | BOS |
| +033+ | 3.1 | Jack Taylor | 218.3 | SLN |
| +034+ | 2.97 | Kid Nichols | 176 | SLN |
| +041+ | 2.53 | Weldon Henley | 167.7 | OAK |
| +042+ | 2.49 | Nick Altrock | 187 | CHA |
| +043+ | 2.46 | Ed Siever | 155.3 | BAL |
| +045+ | 2.38 | Jake Weimer | 175.7 | CHN |
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