| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 10.5 | 190405310_SFN_PHI |
| Cy Young | BOS | 8.58 | 190406010_BOS_CLE |
| Eddie Plank | OAK | 2.14 | 190406010_OAK_BAL |
| Bill Donovan | DET | 1.55 | 190406010_NYA_DET |
| Jack Chesbro | NYA | 0.78 | 190406010_NYA_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Sutthoff | CIN | -1.22 | 190406020_CIN_SFN |
| Happy Townsend | MIN | -0.65 | 190406020_MIN_CHA |
| Kaiser Wilhelm | ATL | -0.28 | 190405310_ATL_LAN |
| Ambrose Puttmann | NYA | -0.21 | 190406020_NYA_DET |
| Fred Mitchell | PHI | -0.09 | 190405310_SFN_PHI |
Based on accumulated WAA for this season up to 1904-06-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.42 | Rube Waddell | 112 | OAK |
| +002+ | 5.77 | Joe McGinnity | 115 | SFN |
| +003+ | 4.25 | Cy Young | 92 | BOS |
| +004+ | 4.1 | Red Donahue | 73 | CLE |
| +005+ | 4.02 | Jesse Tannehill | 78.7 | BOS |
| +006+ | 3.74 | Jack Chesbro | 119 | NYA |
| +007+ | 3.44 | Frank Owen | 89 | CHA |
| +008+ | 3.4 | Bill Dinneen | 86.7 | BOS |
| +015+ | 2.45 | Norwood Gibson | 54 | BOS |
| +017+ | 2.21 | Eddie Plank | 104 | OAK |
| +020+ | 1.93 | Ed Killian | 105.3 | DET |
| +021+ | 1.9 | Harry Howell | 72.7 | BAL |
| +024+ | 1.66 | Jake Weimer | 78.3 | CHN |
| +030+ | 1.4 | Weldon Henley | 83.3 | OAK |
| +032+ | 1.39 | Fred Glade | 54.7 | BAL |
| +035+ | 1.31 | Ed Siever | 76 | BAL |
| XXXXX | 1.23 | Casey Patten | 86.7 | MIN |
| XXXXX | 1.21 | Bill Bernhard | 86 | CLE |
| XXXXX | 1.07 | George Mullin | 111 | DET |
| XXXXX | 1.02 | Chappie McFarland | 61 | SLN |
| XXXXX | 0.94 | Nick Altrock | 76.3 | CHA |
| XXXXX | 0.9 | Barney Pelty | 59.3 | BAL |
| XXXXX | 0.89 | Jack Cronin | 98.7 | LAN |
| XXXXX | 0.8 | Earl Moore | 44 | CLE |
| XXXXX | 0.75 | Claude Elliott | 43 | CIN |
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