| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 5.2 | 190408180_PIT_SFN |
| Frank Owen | CHA | 3.26 | 190408160_BOS_CHA |
| Cy Young | BOS | 2.73 | 190408160_BOS_CHA |
| Eddie Plank | OAK | 2.58 | 190408170_OAK_DET |
| Ed Killian | DET | 1.27 | 190408160_OAK_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Fisher | ATL | -7.9 | 190408172_CHN_ATL |
| Bill Duggleby | PHI | -7.63 | 190408162_SLN_PHI |
| Oscar Jones | LAN | -1.96 | 190408180_CIN_LAN |
| Bob Ewing | CIN | -0.81 | 190408162_CIN_LAN |
| Chappie McFarland | SLN | -0.6 | 190408170_SLN_PHI |
Based on accumulated WAA for this season up to 1904-08-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.56 | Rube Waddell | 274.3 | OAK |
| +002+ | 10.07 | Joe McGinnity | 301.3 | SFN |
| +003+ | 9.18 | Frank Owen | 260 | CHA |
| +004+ | 9.17 | Jack Chesbro | 292 | NYA |
| +006+ | 7.28 | Eddie Plank | 258 | OAK |
| +007+ | 6.89 | Cy Young | 254.3 | BOS |
| +008+ | 5.82 | Jesse Tannehill | 211.7 | BOS |
| +009+ | 5.6 | Ed Killian | 250.3 | DET |
| +011+ | 5.4 | Patsy Flaherty | 203 | TOT |
| +012+ | 5.23 | Earl Moore | 201.3 | CLE |
| +013+ | 5.22 | Frank Smith | 124.7 | CHA |
| +014+ | 5.13 | Bill Dinneen | 197.7 | BOS |
| +015+ | 4.99 | Harry Howell | 198 | BAL |
| +017+ | 4.89 | Bill Bernhard | 218 | CLE |
| +018+ | 4.79 | Red Donahue | 188 | CLE |
| +020+ | 4.45 | Fred Glade | 191 | BAL |
| +022+ | 4.33 | George Mullin | 273 | DET |
| +026+ | 3.99 | Jack Powell | 255.7 | NYA |
| +027+ | 3.99 | Kid Nichols | 203 | SLN |
| +035+ | 3.02 | Doc White | 126 | CHA |
| +038+ | 2.94 | Jack Taylor | 244.7 | SLN |
| +039+ | 2.93 | Weldon Henley | 186.7 | OAK |
| +042+ | 2.83 | Bill Donovan | 207 | DET |
| +044+ | 2.65 | Addie Joss | 103.7 | CLE |
| +045+ | 2.64 | Nick Altrock | 217 | CHA |
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