| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 10.29 | 190406210_SFN_ATL |
| Rube Waddell | OAK | 8.73 | 190406220_BOS_OAK |
| Cy Young | BOS | 6.14 | 190406220_BOS_OAK |
| Jack Chesbro | NYA | 2.39 | 190406210_NYA_MIN |
| Red Donahue | CLE | 2.19 | 190406210_CLE_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Fisher | ATL | -3.28 | 190406220_SFN_ATL |
| Bill Duggleby | PHI | -2.01 | 190406201_PHI_ATL |
| Joe Corbett | SLN | -1.71 | 190406210_PIT_SLN |
| Jack Sutthoff | CIN | -1.44 | 190406220_CHN_CIN |
| Bill Reidy | LAN | -1.31 | 190406200_LAN_SFN |
Based on accumulated WAA for this season up to 1904-06-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.77 | Joe McGinnity | 174 | SFN |
| +002+ | 6.72 | Rube Waddell | 152 | OAK |
| +003+ | 6.2 | Jack Chesbro | 164 | NYA |
| +004+ | 5.94 | Red Donahue | 108.3 | CLE |
| +005+ | 5.09 | Frank Owen | 136.7 | CHA |
| +006+ | 4.87 | Cy Young | 127 | BOS |
| +007+ | 4.86 | Jesse Tannehill | 113.7 | BOS |
| +008+ | 3.9 | Bill Dinneen | 122.7 | BOS |
| +015+ | 2.93 | Harry Howell | 106.7 | BAL |
| +016+ | 2.89 | Eddie Plank | 136 | OAK |
| +019+ | 2.55 | Weldon Henley | 108.7 | OAK |
| +020+ | 2.51 | Bill Bernhard | 115 | CLE |
| +022+ | 2.47 | Ed Killian | 136.3 | DET |
| +024+ | 2.28 | George Mullin | 157 | DET |
| +027+ | 2.14 | Patsy Flaherty | 78 | TOT |
| +026+ | 2.14 | Jack Taylor | 119 | SLN |
| +028+ | 2.08 | Barney Pelty | 95.3 | BAL |
| +029+ | 2.06 | Fred Glade | 86.7 | BAL |
| +033+ | 1.84 | Jack Powell | 120.7 | NYA |
| +036+ | 1.77 | Ed Siever | 94 | BAL |
| +037+ | 1.7 | Sam Leever | 97 | PIT |
| +045+ | 1.38 | Nick Altrock | 111.3 | CHA |
| +048+ | 1.33 | Norwood Gibson | 72 | BOS |
| +049+ | 1.31 | Earl Moore | 90.7 | CLE |
| +050+ | 1.29 | Bill Donovan | 120 | DET |
_