| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 10.93 | 190405140_CHA_OAK |
| Joe McGinnity | SFN | 8.84 | 190405140_SFN_CIN |
| Bill Dinneen | BOS | 4.3 | 190405130_DET_BOS |
| George Mullin | DET | 0.22 | 190405130_DET_BOS |
| Jack Powell | NYA | 0.06 | 190405130_CLE_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tully Sparks | PHI | -1.74 | 190405140_PHI_CHN |
| Ed Poole | LAN | -1.14 | 190405130_LAN_PIT |
| Joe Corbett | SLN | -0.78 | 190405140_ATL_SLN |
| Jack Sutthoff | CIN | -0.73 | 190405150_SFN_CIN |
| Cy Ferry | DET | -0.48 | 190405140_DET_BOS |
Based on accumulated WAA for this season up to 1904-05-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.18 | Rube Waddell | 77 | OAK |
| +002+ | 3.75 | Joe McGinnity | 69 | SFN |
| +003+ | 3.31 | Cy Young | 56 | BOS |
| +004+ | 3.11 | Red Donahue | 44 | CLE |
| +005+ | 2.6 | Jesse Tannehill | 47.7 | BOS |
| +006+ | 2.49 | Frank Owen | 62 | CHA |
| +007+ | 2.45 | Norwood Gibson | 36 | BOS |
| +008+ | 2.43 | Ed Killian | 64.3 | DET |
| +013+ | 1.96 | Bill Dinneen | 50 | BOS |
| +018+ | 1.72 | Jack Powell | 56.7 | NYA |
| +019+ | 1.67 | Weldon Henley | 54 | OAK |
| +020+ | 1.61 | Bill Bernhard | 53 | CLE |
| +021+ | 1.52 | Patsy Flaherty | 43 | CHA |
| +027+ | 1.27 | Jack Chesbro | 71 | NYA |
| XXXXX | 1.12 | Fred Glade | 28.7 | BAL |
| XXXXX | 1.11 | Eddie Plank | 60 | OAK |
| XXXXX | 1.03 | Jake Weimer | 40.3 | CHN |
| XXXXX | 0.95 | Chappie McFarland | 44 | SLN |
| XXXXX | 0.81 | Oscar Jones | 61 | LAN |
| XXXXX | 0.77 | Jack Cronin | 63 | LAN |
| XXXXX | 0.75 | Ed Siever | 46 | BAL |
| XXXXX | 0.69 | Harry Howell | 31.3 | BAL |
| XXXXX | 0.67 | Barney Pelty | 36.7 | BAL |
| XXXXX | 0.63 | Chick Fraser | 43 | PHI |
| XXXXX | 0.52 | Chief Bender | 9 | OAK |
_