| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 8.98 | 190407231_CLE_OAK |
| Cy Young | BOS | 4.8 | 190407220_BAL_BOS |
| Jack Chesbro | NYA | 3.56 | 190407230_CHA_NYA |
| Jack Taylor | SLN | 1.56 | 190407220_PHI_SLN |
| Ed Killian | DET | 1.25 | 190407220_DET_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Duggleby | PHI | -7.76 | 190407220_PHI_SLN |
| Tom Fisher | ATL | -7.51 | 190407232_ATL_CIN |
| Joe Corbett | SLN | -2.28 | 190407231_PHI_SLN |
| Happy Townsend | MIN | -1.61 | 190407231_DET_MIN |
| Jack Harper | CIN | -1.37 | 190407222_ATL_CIN |
Based on accumulated WAA for this season up to 1904-07-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.4 | Rube Waddell | 216.3 | OAK |
| +002+ | 8.58 | Jack Chesbro | 244 | NYA |
| +003+ | 8.18 | Joe McGinnity | 248.3 | SFN |
| +004+ | 6.67 | Cy Young | 203.3 | BOS |
| +005+ | 6.53 | Frank Owen | 196.7 | CHA |
| +006+ | 6.35 | Eddie Plank | 208 | OAK |
| +008+ | 5.13 | Ed Killian | 201 | DET |
| +010+ | 4.23 | Harry Howell | 151.7 | BAL |
| +011+ | 4.21 | Jesse Tannehill | 157.7 | BOS |
| +013+ | 4.08 | Patsy Flaherty | 150 | TOT |
| +014+ | 4.02 | Norwood Gibson | 132 | BOS |
| +017+ | 3.89 | Bill Dinneen | 153.7 | BOS |
| +018+ | 3.75 | Earl Moore | 157.7 | CLE |
| +019+ | 3.74 | Red Donahue | 135 | CLE |
| +021+ | 3.54 | Fred Glade | 145.7 | BAL |
| +022+ | 3.43 | Bill Bernhard | 174 | CLE |
| +024+ | 3.3 | Frank Smith | 78.3 | CHA |
| +025+ | 3.27 | Jack Taylor | 192 | SLN |
| +031+ | 2.96 | Ed Siever | 146.3 | BAL |
| +034+ | 2.78 | Nick Altrock | 169 | CHA |
| +036+ | 2.75 | Bill Donovan | 180.7 | DET |
| +037+ | 2.7 | George Mullin | 216 | DET |
| +038+ | 2.5 | Doc White | 112 | CHA |
| +040+ | 2.44 | Kid Nichols | 167 | SLN |
| +047+ | 2.13 | Addie Joss | 75.7 | CLE |
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