| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 11.17 | 190405210_SFN_CHN |
| Bill Dinneen | BOS | 5.02 | 190405200_BAL_BOS |
| Doc White | CHA | 4.03 | 190405200_CHA_NYA |
| Sam Leever | PIT | 2.61 | 190405200_ATL_PIT |
| Ed Siever | BAL | 2.6 | 190405200_BAL_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tully Sparks | PHI | -2.88 | 190405210_PHI_CIN |
| Jack Harper | CIN | -2.6 | 190405200_PHI_CIN |
| Watty Lee | PIT | -1.06 | 190405210_ATL_PIT |
| Jesse Stovall | DET | -0.9 | 190405200_DET_MIN |
| Joe Corbett | SLN | -0.45 | 190405220_LAN_SLN |
Based on accumulated WAA for this season up to 1904-05-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.2 | Joe McGinnity | 87 | SFN |
| +002+ | 4.33 | Rube Waddell | 85 | OAK |
| +003+ | 3.58 | Red Donahue | 53 | CLE |
| +004+ | 3.51 | Jesse Tannehill | 60.7 | BOS |
| +005+ | 3.24 | Cy Young | 65 | BOS |
| +006+ | 2.79 | Frank Owen | 80 | CHA |
| +007+ | 2.54 | Bill Dinneen | 59 | BOS |
| +009+ | 2.44 | Norwood Gibson | 45 | BOS |
| +010+ | 2.38 | Jack Chesbro | 92 | NYA |
| +015+ | 2.22 | Ed Killian | 78.3 | DET |
| +018+ | 1.87 | Eddie Plank | 78 | OAK |
| +022+ | 1.73 | Harry Howell | 53.3 | BAL |
| +024+ | 1.5 | Bill Bernhard | 70 | CLE |
| XXXXX | 1.22 | Weldon Henley | 67.3 | OAK |
| XXXXX | 1.18 | Casey Patten | 76.7 | MIN |
| XXXXX | 1.17 | Fred Glade | 37.7 | BAL |
| XXXXX | 0.91 | Kaiser Wilhelm | 53 | ATL |
| XXXXX | 0.89 | Ed Walsh | 21 | CHA |
| XXXXX | 0.88 | George Mullin | 92 | DET |
| XXXXX | 0.77 | Jake Weimer | 58.3 | CHN |
| XXXXX | 0.7 | Jack Cronin | 79 | LAN |
| XXXXX | 0.65 | Jack Powell | 73.7 | NYA |
| XXXXX | 0.61 | Chief Bender | 18 | OAK |
| XXXXX | 0.59 | Earl Moore | 26 | CLE |
| XXXXX | 0.58 | Jack Taylor | 62 | SLN |
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