| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 8.48 | 190407042_NYA_OAK |
| Joe McGinnity | SFN | 8.35 | 190407050_SFN_PHI |
| Cy Young | BOS | 5.45 | 190407042_BOS_MIN |
| Jack Chesbro | NYA | 2.71 | 190407041_NYA_OAK |
| Ed Siever | BAL | 1.69 | 190407050_BAL_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Duggleby | PHI | -4.9 | 190407050_SFN_PHI |
| Vic Willis | ATL | -1.68 | 190407050_LAN_ATL |
| Oscar Jones | LAN | -1.27 | 190407050_LAN_ATL |
| Happy Townsend | MIN | -1.07 | 190407050_BOS_MIN |
| Buttons Briggs | CHN | -0.97 | 190407042_CHN_PIT |
Based on accumulated WAA for this season up to 1904-07-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.27 | Joe McGinnity | 209 | SFN |
| +002+ | 7.84 | Rube Waddell | 178.3 | OAK |
| +003+ | 6.89 | Jack Chesbro | 191 | NYA |
| +004+ | 5.85 | Frank Owen | 162.7 | CHA |
| +005+ | 5.83 | Red Donahue | 116.7 | CLE |
| +006+ | 5.52 | Cy Young | 154 | BOS |
| +007+ | 4.49 | Eddie Plank | 161 | OAK |
| +008+ | 4.32 | Jesse Tannehill | 131.7 | BOS |
| +009+ | 4.08 | Harry Howell | 124.7 | BAL |
| +012+ | 4.02 | George Mullin | 184 | DET |
| +016+ | 3.43 | Ed Killian | 165 | DET |
| +017+ | 3.32 | Patsy Flaherty | 105 | TOT |
| +018+ | 3.3 | Bill Bernhard | 141 | CLE |
| +021+ | 3.19 | Bill Dinneen | 130.7 | BOS |
| +023+ | 2.71 | Jack Powell | 156 | NYA |
| +025+ | 2.58 | Ed Siever | 127 | BAL |
| +027+ | 2.45 | Weldon Henley | 126.7 | OAK |
| +029+ | 2.41 | Jack Taylor | 147 | SLN |
| +030+ | 2.39 | Norwood Gibson | 98 | BOS |
| +032+ | 2.3 | Jake Weimer | 130.7 | CHN |
| +033+ | 2.28 | Nick Altrock | 147.3 | CHA |
| +034+ | 2.23 | George Winter | 60.3 | BOS |
| +041+ | 1.98 | Earl Moore | 113.3 | CLE |
| +042+ | 1.94 | Barney Pelty | 113.3 | BAL |
| +047+ | 1.81 | Fred Glade | 111.7 | BAL |
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