| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Chesbro | NYA | 5.96 | 190410101_BOS_NYA |
| Rube Waddell | OAK | 5.91 | 190410102_OAK_MIN |
| Cy Young | BOS | 3.28 | 190410082_NYA_BOS |
| Harry Howell | BAL | 1.16 | 190410080_BAL_CHA |
| George Mullin | DET | 1.03 | 190410081_CLE_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Duggleby | PHI | -4.1 | 190410081_ATL_PHI |
| Chappie McFarland | SLN | -3.56 | 190410092_CIN_SLN |
| Kaiser Wilhelm | ATL | -2.77 | 190410082_ATL_PHI |
| Happy Townsend | MIN | -0.22 | 190410081_OAK_MIN |
| Bob Wicker | CHN | -0.17 | 190410080_CHN_PIT |
Based on accumulated WAA for this season up to 1904-10-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 14.42 | Jack Chesbro | 454.7 | NYA |
| +002+ | 14.35 | Rube Waddell | 383 | OAK |
| +003+ | 10.82 | Cy Young | 380 | BOS |
| +006+ | 9.06 | Eddie Plank | 357.3 | OAK |
| +007+ | 8.62 | Joe McGinnity | 408.3 | SFN |
| +008+ | 8.27 | Bill Bernhard | 320.7 | CLE |
| +009+ | 7.82 | Doc White | 228 | CHA |
| +010+ | 7.73 | Bill Dinneen | 335.7 | BOS |
| +011+ | 7.5 | Jesse Tannehill | 281.7 | BOS |
| +012+ | 7.39 | Addie Joss | 192.3 | CLE |
| +013+ | 6.73 | Jack Powell | 390.7 | NYA |
| +014+ | 6.61 | Harry Howell | 299.7 | BAL |
| +018+ | 6.22 | Norwood Gibson | 273 | BOS |
| +019+ | 6.16 | George Mullin | 382.3 | DET |
| +020+ | 5.8 | Fred Glade | 288.7 | BAL |
| +021+ | 5.55 | Otto Hess | 151.3 | CLE |
| +022+ | 5.53 | Frank Smith | 203.3 | CHA |
| +024+ | 5.39 | Red Donahue | 277 | CLE |
| +028+ | 5.03 | Ed Killian | 331.7 | DET |
| +040+ | 3.83 | Kid Nichols | 317 | SLN |
| +044+ | 3.65 | Roy Patterson | 164.7 | CHA |
| +054+ | 2.9 | Jake Weimer | 306.7 | CHN |
| +056+ | 2.79 | Patsy Flaherty | 285 | TOT |
| +057+ | 2.74 | George Winter | 135.7 | BOS |
| +066+ | 2.06 | Barney Pelty | 300.7 | BAL |
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