| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 8.49 | 190408020_OAK_BAL |
| Cy Young | BOS | 4.38 | 190408010_BOS_CLE |
| Jack Chesbro | NYA | 3.63 | 190408030_NYA_DET |
| Frank Owen | CHA | 2.26 | 190408020_MIN_CHA |
| Earl Moore | CLE | 0.69 | 190408020_BOS_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Fisher | ATL | -6.01 | 190408032_SLN_ATL |
| Tully Sparks | PHI | -2.85 | 190408031_CIN_PHI |
| Happy Townsend | MIN | -1.76 | 190408010_MIN_CHA |
| 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 1904-08-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.56 | Rube Waddell | 243.3 | OAK |
| +002+ | 9.24 | Jack Chesbro | 263 | NYA |
| +003+ | 8.73 | Joe McGinnity | 257.3 | SFN |
| +004+ | 7.73 | Cy Young | 222.3 | BOS |
| +005+ | 7.69 | Frank Owen | 224 | CHA |
| +006+ | 7.12 | Eddie Plank | 225 | OAK |
| +008+ | 5.71 | Patsy Flaherty | 177 | TOT |
| +009+ | 5.43 | Ed Killian | 213.3 | DET |
| +011+ | 5.04 | Jesse Tannehill | 175.7 | BOS |
| +012+ | 4.45 | Earl Moore | 178.3 | CLE |
| +013+ | 4.4 | Norwood Gibson | 152 | BOS |
| +014+ | 4.39 | Harry Howell | 171 | BAL |
| +016+ | 4.17 | Bill Dinneen | 172.7 | BOS |
| +017+ | 4.15 | Frank Smith | 97.7 | CHA |
| +020+ | 3.98 | Fred Glade | 155 | BAL |
| +023+ | 3.9 | Bill Bernhard | 192 | CLE |
| +024+ | 3.74 | Red Donahue | 152 | CLE |
| +028+ | 3.42 | George Mullin | 234 | DET |
| +032+ | 3.06 | Jack Powell | 217.7 | NYA |
| +033+ | 2.94 | Jack Taylor | 210.3 | SLN |
| +037+ | 2.62 | Weldon Henley | 167.7 | OAK |
| +038+ | 2.59 | Nick Altrock | 187 | CHA |
| +040+ | 2.53 | Ed Siever | 155.3 | BAL |
| +043+ | 2.38 | Doc White | 112 | CHA |
| +044+ | 2.33 | Bill Donovan | 189 | DET |
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