| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eddie Plank | OAK | 3.43 | 190409190_OAK_BOS |
| Jesse Tannehill | BOS | 1.88 | 190409190_OAK_BOS |
| Bill Bernhard | CLE | 1.37 | 190409191_CLE_BAL |
| Harry Howell | BAL | 1.35 | 190409171_CHA_BAL |
| Doc White | CHA | 1.23 | 190409190_DET_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vic Willis | ATL | -4.17 | 190409171_ATL_PHI |
| Chick Fraser | PHI | -3.4 | 190409172_ATL_PHI |
| Chappie McFarland | SLN | -2.49 | 190409170_PIT_SLN |
| Happy Townsend | MIN | -0.67 | 190409190_NYA_MIN |
| Willie Sudhoff | BAL | -0.57 | 190409191_CLE_BAL |
Based on accumulated WAA for this season up to 1904-09-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.24 | Jack Chesbro | 384.7 | NYA |
| +002+ | 13.14 | Rube Waddell | 352.7 | OAK |
| +003+ | 10.33 | Eddie Plank | 335 | OAK |
| +004+ | 10.25 | Joe McGinnity | 376.3 | SFN |
| +005+ | 10.15 | Frank Owen | 315 | CHA |
| +006+ | 8.52 | Cy Young | 321 | BOS |
| +008+ | 7.86 | Jesse Tannehill | 281.7 | BOS |
| +009+ | 6.84 | Bill Bernhard | 290.7 | CLE |
| +010+ | 6.63 | Harry Howell | 264.7 | BAL |
| +011+ | 6.52 | Doc White | 187 | CHA |
| +012+ | 6.22 | Addie Joss | 165.3 | CLE |
| +015+ | 6.07 | Bill Dinneen | 274.7 | BOS |
| +016+ | 5.96 | George Mullin | 335 | DET |
| +017+ | 5.74 | Ed Killian | 317.7 | DET |
| +018+ | 5.7 | Jack Powell | 340.7 | NYA |
| +020+ | 5.3 | Earl Moore | 224.3 | CLE |
| +022+ | 5.2 | Fred Glade | 259.7 | BAL |
| +024+ | 4.87 | Norwood Gibson | 231 | BOS |
| +025+ | 4.79 | Red Donahue | 245 | CLE |
| +029+ | 4.51 | Jake Weimer | 263.7 | CHN |
| +030+ | 4.51 | Weldon Henley | 255.7 | OAK |
| +035+ | 4.03 | Kid Nichols | 283 | SLN |
| +042+ | 3.58 | Patsy Flaherty | 255 | TOT |
| +043+ | 3.55 | Otto Hess | 114.3 | CLE |
| +044+ | 3.55 | Bill Donovan | 279 | DET |
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