| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 9.86 | 190406150_SLN_SFN |
| Cy Young | BOS | 8.18 | 190406150_BOS_CHA |
| Jack Taylor | SLN | 2.74 | 190406150_SLN_SFN |
| Sam Leever | PIT | 2.61 | 190406150_PIT_PHI |
| Eddie Plank | OAK | 1.96 | 190406160_OAK_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Duggleby | PHI | -2.28 | 190406150_PIT_PHI |
| Tom Fisher | ATL | -2.21 | 190406160_CHN_ATL |
| Jack Harper | CIN | -1.73 | 190406152_CIN_LAN |
| Davey Dunkle | MIN | -1.17 | 190406150_MIN_CLE |
| Ed Poole | LAN | -1.12 | 190406140_CIN_LAN |
Based on accumulated WAA for this season up to 1904-06-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.19 | Rube Waddell | 141 | OAK |
| +002+ | 6.86 | Joe McGinnity | 156 | SFN |
| +003+ | 5.42 | Red Donahue | 100 | CLE |
| +004+ | 5.39 | Cy Young | 118 | BOS |
| +005+ | 5.36 | Jack Chesbro | 155 | NYA |
| +006+ | 4.57 | Frank Owen | 127.7 | CHA |
| +007+ | 4.46 | Bill Dinneen | 111.7 | BOS |
| +008+ | 4.12 | Jesse Tannehill | 104.7 | BOS |
| +013+ | 2.8 | Eddie Plank | 136 | OAK |
| +015+ | 2.7 | Ed Killian | 127.3 | DET |
| +017+ | 2.58 | Harry Howell | 97.7 | BAL |
| +022+ | 2.18 | Bill Bernhard | 109 | CLE |
| +023+ | 2.17 | Weldon Henley | 99.7 | OAK |
| +024+ | 2.16 | Barney Pelty | 86.3 | BAL |
| +026+ | 1.98 | Patsy Flaherty | 61 | TOT |
| +027+ | 1.97 | Jack Taylor | 110 | SLN |
| +029+ | 1.82 | Sam Leever | 89 | PIT |
| +035+ | 1.44 | George Mullin | 148 | DET |
| +043+ | 1.31 | Norwood Gibson | 72 | BOS |
| +042+ | 1.31 | Fred Glade | 77.7 | BAL |
| +045+ | 1.27 | Casey Patten | 118 | MIN |
| +046+ | 1.26 | George Winter | 42.3 | BOS |
| XXXXX | 1.22 | Ed Siever | 85 | BAL |
| XXXXX | 1.13 | Bill Donovan | 111 | DET |
| XXXXX | 1.03 | Jack Powell | 111.7 | NYA |
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