| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 5.6 | 190407210_SFN_CHN |
| Cy Young | BOS | 4.8 | 190407220_BAL_BOS |
| Eddie Plank | OAK | 3.34 | 190407200_BAL_OAK |
| Frank Owen | CHA | 1.73 | 190407210_CHA_NYA |
| Jack Taylor | SLN | 1.56 | 190407220_PHI_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Duggleby | PHI | -7.76 | 190407220_PHI_SLN |
| Tom Fisher | ATL | -5.7 | 190407212_ATL_CIN |
| Jack Harper | CIN | -1.37 | 190407222_ATL_CIN |
| Ed Poole | LAN | -0.91 | 190407220_LAN_PIT |
| Buttons Briggs | CHN | -0.7 | 190407220_SFN_CHN |
Based on accumulated WAA for this season up to 1904-07-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.49 | Rube Waddell | 205.3 | OAK |
| +002+ | 8.41 | Jack Chesbro | 235 | NYA |
| +003+ | 7.79 | Joe McGinnity | 244.3 | SFN |
| +004+ | 6.66 | Cy Young | 203.3 | BOS |
| +005+ | 6.48 | Frank Owen | 196.7 | CHA |
| +006+ | 6.45 | Eddie Plank | 199 | OAK |
| +009+ | 5.04 | Ed Killian | 201 | DET |
| +010+ | 4.22 | Harry Howell | 151.7 | BAL |
| +011+ | 4.21 | Jesse Tannehill | 157.7 | BOS |
| +014+ | 4.05 | Patsy Flaherty | 150 | TOT |
| +016+ | 4.01 | Norwood Gibson | 132 | BOS |
| +017+ | 3.75 | Red Donahue | 135 | CLE |
| +019+ | 3.44 | Bill Bernhard | 174 | CLE |
| +020+ | 3.41 | Bill Dinneen | 142.7 | BOS |
| +022+ | 3.28 | Frank Smith | 78.3 | CHA |
| +023+ | 3.25 | Earl Moore | 146.7 | CLE |
| +024+ | 3.24 | Jack Taylor | 192 | SLN |
| +026+ | 3.09 | Fred Glade | 134.7 | BAL |
| +029+ | 2.96 | Ed Siever | 146.3 | BAL |
| +033+ | 2.74 | Nick Altrock | 169 | CHA |
| +036+ | 2.59 | George Mullin | 216 | DET |
| +037+ | 2.5 | Kid Nichols | 158 | SLN |
| +038+ | 2.47 | Doc White | 112 | CHA |
| +042+ | 2.2 | Bill Donovan | 171.7 | DET |
| +047+ | 2.01 | Barney Pelty | 142.3 | BAL |
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