| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 11.7 | 190406110_CHN_SFN |
| Cy Young | BOS | 9.55 | 190406100_BOS_BAL |
| Sam Leever | PIT | 2.92 | 190406110_PIT_ATL |
| Jack Taylor | SLN | 2.8 | 190406110_SLN_LAN |
| Eddie Plank | OAK | 2.44 | 190406110_OAK_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Duggleby | PHI | -1.41 | 190406110_CIN_PHI |
| Jesse Stovall | DET | -1.05 | 190406100_MIN_DET |
| Jack Harper | CIN | -0.99 | 190406110_CIN_PHI |
| Al Orth | MIN | -0.59 | 190406110_MIN_DET |
| Oscar Jones | LAN | -0.47 | 190406120_SLN_LAN |
Based on accumulated WAA for this season up to 1904-06-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.24 | Joe McGinnity | 147 | SFN |
| +002+ | 6.75 | Rube Waddell | 131 | OAK |
| +003+ | 5.39 | Cy Young | 110 | BOS |
| +004+ | 4.68 | Red Donahue | 91 | CLE |
| +005+ | 4.66 | Jack Chesbro | 146 | NYA |
| +006+ | 4.54 | Frank Owen | 118.7 | CHA |
| +007+ | 4.47 | Bill Dinneen | 111.7 | BOS |
| +008+ | 3.83 | Jesse Tannehill | 95.7 | BOS |
| +011+ | 2.94 | Eddie Plank | 128 | OAK |
| +015+ | 2.58 | Harry Howell | 97.7 | BAL |
| +016+ | 2.56 | Ed Killian | 121.3 | DET |
| +018+ | 2.41 | Bill Bernhard | 104 | CLE |
| +025+ | 1.76 | Sam Leever | 80 | PIT |
| +026+ | 1.71 | Barney Pelty | 77.3 | BAL |
| +027+ | 1.69 | Jack Taylor | 101 | SLN |
| +028+ | 1.67 | Weldon Henley | 91.3 | OAK |
| +030+ | 1.58 | Fred Glade | 72.7 | BAL |
| +034+ | 1.41 | Earl Moore | 62 | CLE |
| +039+ | 1.32 | Norwood Gibson | 72 | BOS |
| +040+ | 1.3 | George Mullin | 130 | DET |
| +041+ | 1.27 | Patsy Flaherty | 52 | TOT |
| XXXXX | 1.19 | Casey Patten | 110 | MIN |
| XXXXX | 1.05 | George Winter | 34.3 | BOS |
| XXXXX | 1.04 | Jack Powell | 111.7 | NYA |
| XXXXX | 1.03 | Jack Harper | 83 | CIN |
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