| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 10.38 | 190405110_DET_BOS |
| Rube Waddell | OAK | 10.33 | 190405110_CHA_OAK |
| Doc White | CHA | 3.65 | 190405120_CHA_OAK |
| Sam Leever | PIT | 3.27 | 190405110_LAN_PIT |
| Jack Taylor | SLN | 2.9 | 190405120_ATL_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Harper | CIN | -3.97 | 190405120_SFN_CIN |
| Willie Sudhoff | BAL | -1.14 | 190405120_BAL_MIN |
| Ed Poole | LAN | -1.14 | 190405130_LAN_PIT |
| Del Mason | MIN | -0.97 | 190405120_BAL_MIN |
| Chick Fraser | PHI | -0.81 | 190405110_PHI_CHN |
Based on accumulated WAA for this season up to 1904-05-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.61 | Rube Waddell | 68 | OAK |
| +002+ | 3.33 | Cy Young | 56 | BOS |
| +003+ | 3.07 | Red Donahue | 44 | CLE |
| +004+ | 2.93 | Joe McGinnity | 60 | SFN |
| +005+ | 2.6 | Jesse Tannehill | 45 | BOS |
| +007+ | 2.46 | Norwood Gibson | 36 | BOS |
| +008+ | 2.43 | Frank Owen | 62 | CHA |
| +009+ | 2.39 | Ed Killian | 64.3 | DET |
| +014+ | 1.98 | Bill Dinneen | 50 | BOS |
| +017+ | 1.69 | Jack Powell | 56.7 | NYA |
| +018+ | 1.64 | Weldon Henley | 54 | OAK |
| +020+ | 1.56 | Bill Bernhard | 53 | CLE |
| +023+ | 1.48 | Patsy Flaherty | 43 | CHA |
| XXXXX | 1.22 | Jake Weimer | 35.3 | CHN |
| XXXXX | 1.11 | Fred Glade | 28.7 | BAL |
| XXXXX | 1.07 | Eddie Plank | 60 | OAK |
| XXXXX | 0.94 | Claude Elliott | 34 | CIN |
| XXXXX | 0.78 | Oscar Jones | 61 | LAN |
| XXXXX | 0.74 | Jack Cronin | 63 | LAN |
| XXXXX | 0.73 | Ed Siever | 46 | BAL |
| XXXXX | 0.73 | George Winter | 11 | BOS |
| XXXXX | 0.68 | Harry Howell | 31.3 | BAL |
| XXXXX | 0.66 | Barney Pelty | 36.7 | BAL |
| XXXXX | 0.57 | Chick Fraser | 43 | PHI |
| XXXXX | 0.52 | Chief Bender | 9 | OAK |
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