| 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 |
| Sam Leever | PIT | 2.57 | 190405160_SFN_PIT |
| Ed Siever | BAL | 2.35 | 190405160_BAL_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Morgan | BAL | -0.94 | 190405180_BAL_OAK |
| Chick Fraser | PHI | -0.69 | 190405180_PHI_SLN |
| Noodles Hahn | CIN | -0.51 | 190405160_ATL_CIN |
| Davey Dunkle | MIN | -0.3 | 190405170_CHA_MIN |
| Ned Garvin | LAN | -0.21 | 190405180_LAN_CHN |
Based on accumulated WAA for this season up to 1904-05-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.54 | Joe McGinnity | 78 | SFN |
| +002+ | 4.46 | Rube Waddell | 85 | OAK |
| +003+ | 3.69 | Red Donahue | 53 | CLE |
| +004+ | 3.46 | Cy Young | 65 | BOS |
| +005+ | 2.65 | Frank Owen | 71 | CHA |
| +006+ | 2.61 | Jesse Tannehill | 47.7 | BOS |
| +007+ | 2.59 | Norwood Gibson | 45 | BOS |
| +010+ | 2.16 | Ed Killian | 73.3 | DET |
| +013+ | 1.97 | Bill Dinneen | 50 | BOS |
| +015+ | 1.84 | Jack Chesbro | 80 | NYA |
| +016+ | 1.81 | Weldon Henley | 63 | OAK |
| +021+ | 1.56 | Bill Bernhard | 62 | CLE |
| +022+ | 1.54 | Patsy Flaherty | 43 | CHA |
| +026+ | 1.45 | Harry Howell | 40.3 | BAL |
| +027+ | 1.36 | Jack Powell | 64.7 | NYA |
| +033+ | 1.26 | Eddie Plank | 69 | OAK |
| XXXXX | 1.17 | Fred Glade | 28.7 | BAL |
| XXXXX | 1.02 | Chappie McFarland | 44 | SLN |
| XXXXX | 1 | Kaiser Wilhelm | 53 | ATL |
| XXXXX | 0.89 | Casey Patten | 67.7 | MIN |
| XXXXX | 0.71 | Jack Cronin | 71 | LAN |
| XXXXX | 0.53 | Chief Bender | 9 | OAK |
| XXXXX | 0.53 | Jake Weimer | 49.3 | CHN |
| XXXXX | 0.5 | Carl Lundgren | 54 | CHN |
| XXXXX | 0.47 | Earl Moore | 17 | CLE |
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