| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Chesbro | NYA | 6.28 | 190410010_NYA_CHA |
| Rube Waddell | OAK | 6.09 | 190410011_OAK_DET |
| Cy Young | BOS | 3.04 | 190410020_BOS_BAL |
| Joe McGinnity | SFN | 2.85 | 190409301_CHN_SFN |
| Doc White | CHA | 1.85 | 190410021_NYA_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Chick Fraser | PHI | -4.62 | 190410011_PIT_PHI |
| Chappie McFarland | SLN | -3.13 | 190410012_SLN_SFN |
| Vic Willis | ATL | -3.07 | 190409301_PIT_ATL |
| Fred Mitchell | LAN | -1.98 | 190409300_SLN_LAN |
| Jesse Stovall | DET | -0.66 | 190410011_OAK_DET |
Based on accumulated WAA for this season up to 1904-10-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.8 | Jack Chesbro | 423.7 | NYA |
| +002+ | 13.52 | Rube Waddell | 370 | OAK |
| +003+ | 10.04 | Eddie Plank | 354.3 | OAK |
| +005+ | 9.79 | Cy Young | 364 | BOS |
| +006+ | 9.68 | Joe McGinnity | 399.3 | SFN |
| +008+ | 7.7 | Doc White | 219 | CHA |
| +009+ | 7.62 | Jesse Tannehill | 281.7 | BOS |
| +010+ | 7.52 | Bill Bernhard | 308.7 | CLE |
| +011+ | 7.2 | Bill Dinneen | 309.7 | BOS |
| +013+ | 6.68 | Addie Joss | 183.3 | CLE |
| +016+ | 6 | George Mullin | 359.3 | DET |
| +017+ | 5.94 | Jack Powell | 374.7 | NYA |
| +019+ | 5.73 | Ed Killian | 323.7 | DET |
| +020+ | 5.7 | Norwood Gibson | 256 | BOS |
| +022+ | 5.5 | Red Donahue | 268 | CLE |
| +023+ | 5.47 | Fred Glade | 279.7 | BAL |
| +025+ | 5.25 | Frank Smith | 192.3 | CHA |
| +031+ | 4.52 | Otto Hess | 132.3 | CLE |
| +032+ | 4.49 | Kid Nichols | 300 | SLN |
| +037+ | 4.11 | Weldon Henley | 286.7 | OAK |
| +050+ | 3.04 | Roy Patterson | 149.7 | CHA |
| +052+ | 3.02 | Jake Weimer | 297.7 | CHN |
| +053+ | 3.01 | Patsy Flaherty | 273 | TOT |
| +055+ | 2.91 | Ed Siever | 205 | BAL |
| +063+ | 2.07 | George Winter | 126 | BOS |
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