| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 10.22 | 190405070_MIN_OAK |
| Bill Dinneen | BOS | 4.26 | 190405070_NYA_BOS |
| Sam Leever | PIT | 3.55 | 190405070_PHI_PIT |
| Ed Siever | BAL | 3.39 | 190405060_BAL_CHA |
| Bill Donovan | DET | 3.32 | 190405070_DET_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Chick Fraser | PHI | -1.46 | 190405060_PHI_PIT |
| Bob Ewing | CIN | -1.4 | 190405060_SLN_CIN |
| Roscoe Miller | PIT | -1.38 | 190405060_PHI_PIT |
| Jesse Stovall | DET | -1.12 | 190405060_DET_CLE |
| Ed Poole | LAN | -0.86 | 190405070_LAN_CIN |
Based on accumulated WAA for this season up to 1904-05-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.33 | Rube Waddell | 56 | OAK |
| +002+ | 2.35 | Joe McGinnity | 51 | SFN |
| +003+ | 2.29 | Red Donahue | 35 | CLE |
| +004+ | 2.22 | Cy Young | 41 | BOS |
| +005+ | 2.01 | Norwood Gibson | 27 | BOS |
| +006+ | 1.98 | Jesse Tannehill | 36 | BOS |
| +007+ | 1.95 | Frank Owen | 53 | CHA |
| +010+ | 1.61 | Harry Howell | 27.3 | BAL |
| +011+ | 1.59 | Bill Dinneen | 41 | BOS |
| +013+ | 1.53 | Patsy Flaherty | 43 | CHA |
| +014+ | 1.52 | Ed Killian | 50 | DET |
| +017+ | 1.44 | Jack Powell | 38.7 | NYA |
| +019+ | 1.43 | Dummy Taylor | 42 | SFN |
| +021+ | 1.29 | Bill Bernhard | 45 | CLE |
| XXXXX | 1.21 | Jack Cronin | 47 | LAN |
| XXXXX | 1.21 | Jack Chesbro | 53 | NYA |
| XXXXX | 1.17 | Weldon Henley | 45 | OAK |
| XXXXX | 1.02 | Togie Pittinger | 44 | ATL |
| XXXXX | 0.95 | Claude Elliott | 34 | CIN |
| XXXXX | 0.85 | Doc White | 30 | CHA |
| XXXXX | 0.84 | Fred Glade | 17 | BAL |
| XXXXX | 0.78 | George Winter | 11 | BOS |
| XXXXX | 0.73 | Bill Donovan | 45 | DET |
| XXXXX | 0.72 | Eddie Plank | 42 | OAK |
| XXXXX | 0.68 | Bob Rhoads | 17 | CLE |
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