| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 11.08 | 190406050_OAK_CHA |
| Joe McGinnity | SFN | 10.31 | 190406040_CIN_SFN |
| Jack Taylor | SLN | 3.01 | 190406030_SLN_ATL |
| Sam Leever | PIT | 2.13 | 190406040_PIT_LAN |
| Red Donahue | CLE | 1.4 | 190406030_BOS_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| John McPherson | PHI | -1.72 | 190406040_CHN_PHI |
| Jack Harper | CIN | -1.51 | 190406040_CIN_SFN |
| Ed Poole | LAN | -1.42 | 190406030_PIT_LAN |
| Willie Sudhoff | BAL | -0.81 | 190406050_MIN_BAL |
| Beany Jacobson | MIN | -0.46 | 190406050_MIN_BAL |
Based on accumulated WAA for this season up to 1904-06-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.93 | Rube Waddell | 114 | OAK |
| +002+ | 5.87 | Joe McGinnity | 126 | SFN |
| +003+ | 4.6 | Red Donahue | 82 | CLE |
| +004+ | 4.31 | Jesse Tannehill | 87.7 | BOS |
| +005+ | 4.23 | Cy Young | 92 | BOS |
| +006+ | 4.2 | Jack Chesbro | 128 | NYA |
| +007+ | 4.13 | Frank Owen | 98 | CHA |
| +008+ | 3.39 | Bill Dinneen | 86.7 | BOS |
| +013+ | 2.67 | Norwood Gibson | 62 | BOS |
| +015+ | 2.49 | Eddie Plank | 113 | OAK |
| +020+ | 1.91 | Ed Killian | 105.3 | DET |
| +022+ | 1.82 | Harry Howell | 72.7 | BAL |
| +025+ | 1.65 | Jake Weimer | 78.3 | CHN |
| +028+ | 1.39 | Weldon Henley | 83.3 | OAK |
| XXXXX | 1.23 | Ed Siever | 76 | BAL |
| XXXXX | 1.23 | Jack Taylor | 83 | SLN |
| XXXXX | 1.15 | Bill Bernhard | 86 | CLE |
| XXXXX | 1.14 | Casey Patten | 100 | MIN |
| XXXXX | 1.1 | Earl Moore | 53 | CLE |
| XXXXX | 0.94 | Fred Glade | 63.7 | BAL |
| XXXXX | 0.91 | Nick Altrock | 76.3 | CHA |
| XXXXX | 0.91 | Jack Cronin | 100.7 | LAN |
| XXXXX | 0.89 | Jack Powell | 94.7 | NYA |
| XXXXX | 0.87 | Chappie McFarland | 61 | SLN |
| XXXXX | 0.83 | Togie Pittinger | 97.3 | ATL |
_