| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 10.99 | 190405170_BAL_OAK |
| Joe McGinnity | SFN | 10.24 | 190405170_SFN_PIT |
| Cy Young | BOS | 9.35 | 190405170_CLE_BOS |
| Jack Taylor | SLN | 3.17 | 190405190_PHI_SLN |
| Bill Donovan | DET | 2.17 | 190405170_DET_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Poole | LAN | -1.01 | 190405190_LAN_CHN |
| Cy Morgan | BAL | -0.94 | 190405180_BAL_OAK |
| Chick Fraser | PHI | -0.69 | 190405180_PHI_SLN |
| Beany Jacobson | MIN | -0.49 | 190405190_CHA_MIN |
| Roscoe Miller | PIT | -0.17 | 190405190_SFN_PIT |
Based on accumulated WAA for this season up to 1904-05-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.55 | Joe McGinnity | 78 | SFN |
| +002+ | 4.44 | Rube Waddell | 85 | OAK |
| +003+ | 3.67 | Red Donahue | 53 | CLE |
| +004+ | 3.43 | Cy Young | 65 | BOS |
| +005+ | 2.62 | Frank Owen | 71 | CHA |
| +006+ | 2.59 | Jesse Tannehill | 47.7 | BOS |
| +007+ | 2.57 | Norwood Gibson | 45 | BOS |
| +010+ | 2.13 | Ed Killian | 73.3 | DET |
| +012+ | 1.94 | Bill Dinneen | 50 | BOS |
| +016+ | 1.81 | Jack Chesbro | 80 | NYA |
| +017+ | 1.8 | Weldon Henley | 63 | OAK |
| +022+ | 1.53 | Bill Bernhard | 62 | CLE |
| +027+ | 1.44 | Harry Howell | 40.3 | BAL |
| +029+ | 1.33 | Jack Powell | 64.7 | NYA |
| XXXXX | 1.24 | Fred Glade | 37.7 | BAL |
| XXXXX | 1.24 | Eddie Plank | 69 | OAK |
| XXXXX | 0.99 | Chappie McFarland | 44 | SLN |
| XXXXX | 0.97 | Kaiser Wilhelm | 53 | ATL |
| XXXXX | 0.93 | Ed Walsh | 21 | CHA |
| XXXXX | 0.85 | Casey Patten | 67.7 | MIN |
| XXXXX | 0.71 | Jack Taylor | 62 | SLN |
| XXXXX | 0.7 | Jack Cronin | 71 | LAN |
| XXXXX | 0.63 | Chief Bender | 18 | OAK |
| XXXXX | 0.52 | Jake Weimer | 49.3 | CHN |
| XXXXX | 0.49 | Carl Lundgren | 54 | CHN |
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