| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 8.36 | 190408230_CLE_OAK |
| Joe McGinnity | SFN | 4.36 | 190408231_SFN_PIT |
| Jack Chesbro | NYA | 4.1 | 190408230_CHA_NYA |
| Frank Owen | CHA | 3.09 | 190408240_CHA_BOS |
| Cy Young | BOS | 2.86 | 190408221_BAL_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vic Willis | ATL | -3.47 | 190408220_ATL_CHN |
| Tully Sparks | PHI | -3.3 | 190408240_PHI_PIT |
| Oscar Jones | LAN | -1.87 | 190408240_LAN_CIN |
| Happy Townsend | MIN | -0.74 | 190408240_CLE_MIN |
| Willie Sudhoff | BAL | -0.58 | 190408230_BAL_BOS |
Based on accumulated WAA for this season up to 1904-08-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.26 | Rube Waddell | 294.3 | OAK |
| +002+ | 10.2 | Jack Chesbro | 310 | NYA |
| +003+ | 9.34 | Joe McGinnity | 309.3 | SFN |
| +004+ | 9.18 | Frank Owen | 277 | CHA |
| +005+ | 7.56 | Eddie Plank | 267 | OAK |
| +006+ | 7.44 | Cy Young | 263.3 | BOS |
| +008+ | 6.19 | Jesse Tannehill | 220.7 | BOS |
| +009+ | 5.75 | Earl Moore | 212.3 | CLE |
| +010+ | 5.6 | Ed Killian | 268.3 | DET |
| +012+ | 5.17 | Bill Dinneen | 215.7 | BOS |
| +013+ | 5.15 | Bill Bernhard | 226 | CLE |
| +014+ | 5.03 | Red Donahue | 198 | CLE |
| +015+ | 5.02 | Frank Smith | 133.3 | CHA |
| +016+ | 4.95 | Harry Howell | 206 | BAL |
| +018+ | 4.84 | George Mullin | 281 | DET |
| +021+ | 4.48 | Patsy Flaherty | 216 | TOT |
| +023+ | 4.2 | Kid Nichols | 221 | SLN |
| +025+ | 4.13 | Jack Powell | 264.7 | NYA |
| +027+ | 4.02 | Fred Glade | 194 | BAL |
| +030+ | 3.89 | Bill Donovan | 225 | DET |
| +031+ | 3.81 | Doc White | 142 | CHA |
| +036+ | 3.13 | Weldon Henley | 204.7 | OAK |
| +039+ | 3 | Norwood Gibson | 172 | BOS |
| +043+ | 2.82 | Jake Weimer | 211.7 | CHN |
| +045+ | 2.58 | Jack Taylor | 253.7 | SLN |
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