| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 5.54 | 190404192_MIN_BOS |
| Christy Mathewson | SFN | 5.5 | 190404180_SFN_PHI |
| Jack Taylor | SLN | 4.09 | 190404190_CHN_SLN |
| Deacon Phillippe | PIT | 3.74 | 190404190_PIT_CIN |
| Ed Siever | BAL | 3.38 | 190404190_CLE_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roscoe Miller | PIT | -0.93 | 190404200_PIT_CIN |
| Frank Owen | CHA | -0.72 | 190404190_DET_CHA |
| Tom Walker | CIN | -0.27 | 190404200_PIT_CIN |
| Jack Cronin | LAN | -0.23 | 190404190_ATL_LAN |
| Davey Dunkle | MIN | -0.23 | 190404191_MIN_BOS |
Based on accumulated WAA for this season up to 1904-04-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 1.34 | Ed Killian | 20 | DET |
| XXXXX | 1.22 | Bill Bernhard | 18 | CLE |
| XXXXX | 1.11 | Joe McGinnity | 25 | SFN |
| XXXXX | 0.95 | Togie Pittinger | 9 | ATL |
| XXXXX | 0.93 | Red Donahue | 9 | CLE |
| XXXXX | 0.9 | George Winter | 9 | BOS |
| XXXXX | 0.9 | Jesse Tannehill | 9 | BOS |
| XXXXX | 0.9 | Norwood Gibson | 9 | BOS |
| XXXXX | 0.89 | Patsy Flaherty | 9 | CHA |
| XXXXX | 0.83 | John McPherson | 15 | PHI |
| XXXXX | 0.72 | Frank Owen | 18 | CHA |
| XXXXX | 0.69 | Barney Pelty | 12 | BAL |
| XXXXX | 0.68 | Bill Donovan | 9 | DET |
| XXXXX | 0.51 | Jack Chesbro | 18 | NYA |
| XXXXX | 0.51 | Chief Bender | 9 | OAK |
| XXXXX | 0.48 | Davey Dunkle | 8 | MIN |
| XXXXX | 0.47 | Doc White | 9 | CHA |
| XXXXX | 0.41 | Dummy Taylor | 9 | SFN |
| XXXXX | 0.41 | George Mullin | 17 | DET |
| XXXXX | 0.41 | Willie Sudhoff | 9 | BAL |
| XXXXX | 0.4 | Ed Siever | 18 | BAL |
| XXXXX | 0.3 | Nick Altrock | 18 | CHA |
| XXXXX | 0.3 | Casey Patten | 18 | MIN |
| XXXXX | 0.3 | Rube Waddell | 9 | OAK |
| XXXXX | 0.27 | Bill Dinneen | 9 | BOS |
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