| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 12.79 | 190406070_OAK_CHA |
| Joe McGinnity | SFN | 11.39 | 190406080_PIT_SFN |
| Cy Young | BOS | 9.93 | 190406060_BOS_DET |
| Jack Taylor | SLN | 2.93 | 190406070_SLN_PHI |
| Sam Leever | PIT | 2.83 | 190406070_PIT_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roscoe Miller | PIT | -1.14 | 190406060_PIT_SFN |
| Jack Sutthoff | CIN | -1.12 | 190406070_CIN_ATL |
| Bill Duggleby | PHI | -1 | 190406060_SLN_PHI |
| Ed Poole | LAN | -0.96 | 190406080_CHN_LAN |
| Joe Corbett | SLN | -0.92 | 190406080_SLN_PHI |
Based on accumulated WAA for this season up to 1904-06-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.72 | Rube Waddell | 131 | OAK |
| +002+ | 6.6 | Joe McGinnity | 135 | SFN |
| +003+ | 4.98 | Cy Young | 101 | BOS |
| +004+ | 4.71 | Red Donahue | 91 | CLE |
| +005+ | 4.44 | Frank Owen | 107 | CHA |
| +006+ | 4.33 | Jesse Tannehill | 87.7 | BOS |
| +007+ | 4.23 | Jack Chesbro | 128 | NYA |
| +008+ | 3.5 | Bill Dinneen | 95.7 | BOS |
| +017+ | 2.21 | Norwood Gibson | 64 | BOS |
| +018+ | 2.19 | Eddie Plank | 119 | OAK |
| +019+ | 2 | Ed Killian | 114.3 | DET |
| +023+ | 1.89 | Harry Howell | 81.7 | BAL |
| +024+ | 1.68 | Bill Bernhard | 95 | CLE |
| +026+ | 1.64 | Fred Glade | 72.7 | BAL |
| +028+ | 1.5 | Togie Pittinger | 106.3 | ATL |
| +031+ | 1.43 | Jack Powell | 103.7 | NYA |
| +029+ | 1.43 | Weldon Henley | 83.3 | OAK |
| +035+ | 1.37 | Jack Taylor | 92 | SLN |
| +039+ | 1.32 | Barney Pelty | 68.3 | BAL |
| +044+ | 1.27 | Jake Weimer | 86.3 | CHN |
| +045+ | 1.26 | Ed Siever | 76 | BAL |
| XXXXX | 1.24 | George Mullin | 130 | DET |
| XXXXX | 1.24 | Sam Leever | 71 | PIT |
| XXXXX | 1.22 | Jack Cronin | 109.7 | LAN |
| XXXXX | 1.09 | Earl Moore | 53 | CLE |
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