| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 12.24 | 190406060_OAK_CHA |
| Joe McGinnity | SFN | 10.31 | 190406040_CIN_SFN |
| Cy Young | BOS | 9.93 | 190406060_BOS_DET |
| Sam Leever | PIT | 2.13 | 190406040_PIT_LAN |
| Jack Chesbro | NYA | 1.09 | 190406040_NYA_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| John McPherson | PHI | -1.72 | 190406040_CHN_PHI |
| Jack Harper | CIN | -1.51 | 190406040_CIN_SFN |
| Roscoe Miller | PIT | -1.14 | 190406060_PIT_SFN |
| Joe Corbett | SLN | -0.88 | 190406060_SLN_PHI |
| Willie Sudhoff | BAL | -0.81 | 190406050_MIN_BAL |
Based on accumulated WAA for this season up to 1904-06-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.35 | Rube Waddell | 123 | OAK |
| +002+ | 5.99 | Joe McGinnity | 126 | SFN |
| +003+ | 5.05 | Cy Young | 101 | BOS |
| +004+ | 4.67 | Red Donahue | 82 | CLE |
| +005+ | 4.39 | Jesse Tannehill | 87.7 | BOS |
| +006+ | 4.35 | Jack Chesbro | 128 | NYA |
| +007+ | 4.22 | Frank Owen | 98 | CHA |
| +008+ | 3.47 | Bill Dinneen | 86.7 | BOS |
| +014+ | 2.72 | Norwood Gibson | 62 | BOS |
| +015+ | 2.6 | Eddie Plank | 113 | OAK |
| +019+ | 2.05 | Ed Killian | 114.3 | DET |
| +021+ | 1.89 | Harry Howell | 72.7 | BAL |
| +022+ | 1.79 | Bill Bernhard | 95 | CLE |
| +028+ | 1.47 | Weldon Henley | 83.3 | OAK |
| +034+ | 1.36 | Barney Pelty | 68.3 | BAL |
| +035+ | 1.34 | Jack Cronin | 109.7 | LAN |
| +039+ | 1.32 | Jake Weimer | 86.3 | CHN |
| +038+ | 1.32 | Jack Taylor | 83 | SLN |
| +041+ | 1.3 | Ed Siever | 76 | BAL |
| +042+ | 1.25 | Casey Patten | 100 | MIN |
| XXXXX | 1.15 | Earl Moore | 53 | CLE |
| XXXXX | 1.01 | Fred Glade | 63.7 | BAL |
| XXXXX | 1 | Jack Powell | 94.7 | NYA |
| XXXXX | 0.89 | Togie Pittinger | 97.3 | ATL |
| XXXXX | 0.79 | Jack Harper | 74 | CIN |
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