| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 8.91 | 190407270_DET_OAK |
| Cy Young | BOS | 4.38 | 190407270_CHA_BOS |
| Frank Owen | CHA | 1.9 | 190407250_CHA_NYA |
| Jack Taylor | SLN | 1.57 | 190407260_SLN_PIT |
| Ed Killian | DET | 1.38 | 190407260_DET_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Duggleby | PHI | -7.51 | 190407260_PHI_ATL |
| Kaiser Wilhelm | ATL | -3.76 | 190407270_PHI_ATL |
| Happy Townsend | MIN | -1.74 | 190407272_CLE_MIN |
| Jesse Stovall | DET | -1.05 | 190407270_DET_OAK |
| Ed Poole | LAN | -0.69 | 190407270_LAN_SFN |
Based on accumulated WAA for this season up to 1904-07-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.1 | Rube Waddell | 225.3 | OAK |
| +002+ | 8.53 | Jack Chesbro | 244 | NYA |
| +003+ | 8.14 | Joe McGinnity | 248.3 | SFN |
| +004+ | 7.17 | Cy Young | 213.3 | BOS |
| +005+ | 6.97 | Frank Owen | 205 | CHA |
| +006+ | 6.55 | Eddie Plank | 216 | OAK |
| +008+ | 5.61 | Ed Killian | 210 | DET |
| +010+ | 4.8 | Patsy Flaherty | 159 | TOT |
| +011+ | 4.44 | Jesse Tannehill | 166.7 | BOS |
| +012+ | 4.36 | Harry Howell | 162 | BAL |
| +014+ | 4.21 | Norwood Gibson | 143 | BOS |
| +016+ | 4.16 | Bill Bernhard | 183 | CLE |
| +018+ | 3.97 | Red Donahue | 143 | CLE |
| +019+ | 3.84 | Frank Smith | 87.7 | CHA |
| +020+ | 3.81 | Bill Dinneen | 153.7 | BOS |
| +021+ | 3.77 | Jack Taylor | 201 | SLN |
| +023+ | 3.73 | Earl Moore | 157.7 | CLE |
| +025+ | 3.5 | Fred Glade | 145.7 | BAL |
| +031+ | 2.92 | Ed Siever | 146.3 | BAL |
| +032+ | 2.86 | Nick Altrock | 178 | CHA |
| +034+ | 2.76 | Bill Donovan | 180.7 | DET |
| +035+ | 2.71 | George Mullin | 216 | DET |
| +040+ | 2.48 | Doc White | 112 | CHA |
| +043+ | 2.4 | Kid Nichols | 167 | SLN |
| +046+ | 2.12 | Addie Joss | 75.7 | CLE |
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