| 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 Taylor | SLN | 2.82 | 190406230_SLN_PIT |
| Jack Chesbro | NYA | 2.39 | 190406210_NYA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Fisher | ATL | -3.28 | 190406220_SFN_ATL |
| Bill Duggleby | PHI | -2.27 | 190406230_PHI_LAN |
| Joe Corbett | SLN | -1.71 | 190406210_PIT_SLN |
| Jack Sutthoff | CIN | -1.44 | 190406220_CHN_CIN |
| Happy Townsend | MIN | -1.32 | 190406230_NYA_MIN |
Based on accumulated WAA for this season up to 1904-06-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.75 | Joe McGinnity | 174 | SFN |
| +002+ | 6.67 | Rube Waddell | 152 | OAK |
| +003+ | 6.16 | Jack Chesbro | 164 | NYA |
| +004+ | 5.92 | Red Donahue | 108.3 | CLE |
| +005+ | 5.06 | Frank Owen | 136.7 | CHA |
| +006+ | 4.87 | Cy Young | 127 | BOS |
| +007+ | 4.85 | Jesse Tannehill | 113.7 | BOS |
| +009+ | 3.89 | Bill Dinneen | 122.7 | BOS |
| +012+ | 3.38 | Eddie Plank | 145 | OAK |
| +014+ | 3.11 | Ed Killian | 145.3 | DET |
| +017+ | 2.92 | Harry Howell | 106.7 | BAL |
| +019+ | 2.74 | Bill Bernhard | 123 | CLE |
| +020+ | 2.64 | Jack Taylor | 128 | SLN |
| +023+ | 2.53 | Weldon Henley | 108.7 | OAK |
| +024+ | 2.51 | Fred Glade | 95.7 | BAL |
| +027+ | 2.27 | George Mullin | 157 | DET |
| +029+ | 2.12 | Patsy Flaherty | 78 | TOT |
| +030+ | 2.07 | Barney Pelty | 95.3 | BAL |
| +033+ | 1.91 | Jack Powell | 129.7 | NYA |
| +037+ | 1.76 | Ed Siever | 94 | BAL |
| +043+ | 1.42 | Sam Leever | 99 | PIT |
| +046+ | 1.35 | Nick Altrock | 111.3 | CHA |
| +049+ | 1.29 | Earl Moore | 90.7 | CLE |
| +050+ | 1.28 | Bill Donovan | 120 | DET |
| +052+ | 1.27 | George Winter | 42.3 | BOS |
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