| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 8.84 | 190407140_CHA_OAK |
| Cy Young | BOS | 6.08 | 190407160_CLE_BOS |
| Joe McGinnity | SFN | 6.07 | 190407160_SFN_PIT |
| Jack Chesbro | NYA | 3.13 | 190407140_CLE_NYA |
| Jack Taylor | SLN | 2.01 | 190407160_ATL_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Fisher | ATL | -6.66 | 190407140_ATL_CHN |
| Tully Sparks | PHI | -2.32 | 190407160_PHI_CHN |
| Jack Harper | CIN | -1.35 | 190407140_SFN_CIN |
| Happy Townsend | MIN | -1.19 | 190407150_BAL_MIN |
| Oscar Jones | LAN | -0.95 | 190407140_LAN_SLN |
Based on accumulated WAA for this season up to 1904-07-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.94 | Rube Waddell | 196.3 | OAK |
| +002+ | 7.65 | Joe McGinnity | 239 | SFN |
| +003+ | 7.53 | Jack Chesbro | 224 | NYA |
| +004+ | 7.29 | Cy Young | 190 | BOS |
| +005+ | 5.9 | Frank Owen | 179.7 | CHA |
| +006+ | 5.69 | Eddie Plank | 190 | OAK |
| +011+ | 4.24 | Jesse Tannehill | 139.7 | BOS |
| +013+ | 3.97 | Ed Killian | 185 | DET |
| +014+ | 3.92 | Patsy Flaherty | 141 | TOT |
| +016+ | 3.53 | Jack Taylor | 183 | SLN |
| +017+ | 3.51 | Norwood Gibson | 123 | BOS |
| +018+ | 3.5 | Harry Howell | 143.7 | BAL |
| +022+ | 3.18 | Nick Altrock | 164.3 | CHA |
| +024+ | 3.09 | Bill Dinneen | 130.7 | BOS |
| +026+ | 3.01 | George Mullin | 200 | DET |
| +028+ | 2.8 | Ed Siever | 137.3 | BAL |
| +029+ | 2.75 | Earl Moore | 137.7 | CLE |
| +032+ | 2.64 | Weldon Henley | 145.7 | OAK |
| +034+ | 2.58 | Kid Nichols | 149 | SLN |
| +036+ | 2.46 | Doc White | 112 | CHA |
| +037+ | 2.43 | Jack Powell | 182 | NYA |
| +039+ | 2.39 | Frank Smith | 65 | CHA |
| +040+ | 2.3 | Fred Glade | 125.7 | BAL |
| +046+ | 2.06 | Jake Weimer | 141.7 | CHN |
| +048+ | 1.94 | Bill Bernhard | 153 | CLE |
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