| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 11.7 | 190406110_CHN_SFN |
| Rube Waddell | OAK | 11.3 | 190406130_OAK_CLE |
| Bill Dinneen | BOS | 5.22 | 190406120_BOS_BAL |
| Sam Leever | PIT | 2.92 | 190406110_PIT_ATL |
| Jack Taylor | SLN | 2.8 | 190406110_SLN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Sutthoff | CIN | -1.5 | 190406130_CIN_PHI |
| Bill Duggleby | PHI | -1.41 | 190406110_CIN_PHI |
| Kaiser Wilhelm | ATL | -0.69 | 190406130_PIT_ATL |
| 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 1904-06-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.23 | Joe McGinnity | 147 | SFN |
| +002+ | 7.08 | Rube Waddell | 141 | OAK |
| +003+ | 5.37 | Cy Young | 110 | BOS |
| +004+ | 4.66 | Jack Chesbro | 146 | NYA |
| +005+ | 4.64 | Red Donahue | 91 | CLE |
| +006+ | 4.52 | Frank Owen | 118.7 | CHA |
| +007+ | 4.46 | Bill Dinneen | 111.7 | BOS |
| +008+ | 4.11 | Jesse Tannehill | 104.7 | BOS |
| +012+ | 2.89 | Eddie Plank | 128 | OAK |
| +014+ | 2.58 | Harry Howell | 97.7 | BAL |
| +015+ | 2.56 | Ed Killian | 121.3 | DET |
| +018+ | 2.36 | Bill Bernhard | 104 | CLE |
| +024+ | 1.96 | George Mullin | 139 | DET |
| +026+ | 1.74 | Sam Leever | 80 | PIT |
| +027+ | 1.71 | Barney Pelty | 77.3 | BAL |
| +029+ | 1.67 | Jack Taylor | 101 | SLN |
| +030+ | 1.64 | Weldon Henley | 91.3 | OAK |
| +031+ | 1.64 | Casey Patten | 118 | MIN |
| +040+ | 1.32 | Fred Glade | 77.7 | BAL |
| +042+ | 1.31 | Norwood Gibson | 72 | BOS |
| +044+ | 1.26 | Patsy Flaherty | 52 | TOT |
| XXXXX | 1.23 | Ed Siever | 85 | BAL |
| XXXXX | 1.05 | George Winter | 34.3 | BOS |
| XXXXX | 1.04 | Jack Harper | 83 | CIN |
| XXXXX | 1.04 | Jack Powell | 111.7 | NYA |
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