| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jesse Stovall | DET | -1.44 | 190404300_CHA_DET |
| Bob Ewing | CIN | -1.27 | 190405010_CIN_SLN |
| Pat Carney | ATL | -1.06 | 190404300_ATL_SFN |
| Chick Fraser | PHI | -0.92 | 190405020_LAN_PHI |
| Mike O'Neill | SLN | -0.58 | 190404300_CIN_SLN |
Based on accumulated WAA for this season up to 1904-05-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.62 | Rube Waddell | 39 | OAK |
| +002+ | 2.32 | Togie Pittinger | 35 | ATL |
| +003+ | 2.07 | Joe McGinnity | 41 | SFN |
| +006+ | 1.62 | Jesse Tannehill | 27 | BOS |
| +008+ | 1.49 | Red Donahue | 26 | CLE |
| +009+ | 1.47 | Patsy Flaherty | 33 | CHA |
| +010+ | 1.45 | Cy Young | 32 | BOS |
| +011+ | 1.43 | Norwood Gibson | 18 | BOS |
| +012+ | 1.29 | Harry Howell | 19 | BAL |
| XXXXX | 1.12 | Bill Bernhard | 36 | CLE |
| XXXXX | 1.07 | Ed Killian | 41 | DET |
| XXXXX | 1.05 | Bill Dinneen | 23 | BOS |
| XXXXX | 0.9 | Dummy Taylor | 34 | SFN |
| XXXXX | 0.86 | Jack Cronin | 36 | LAN |
| XXXXX | 0.85 | Jack Powell | 29.7 | NYA |
| XXXXX | 0.84 | Barney Pelty | 34 | BAL |
| XXXXX | 0.8 | Bill Donovan | 37 | DET |
| XXXXX | 0.79 | George Winter | 11 | BOS |
| XXXXX | 0.77 | Nick Altrock | 27 | CHA |
| XXXXX | 0.71 | Weldon Henley | 28 | OAK |
| XXXXX | 0.67 | Frank Owen | 36 | CHA |
| XXXXX | 0.65 | Oscar Jones | 36 | LAN |
| XXXXX | 0.57 | Chick Fraser | 26 | PHI |
| XXXXX | 0.57 | Otto Hess | 8.7 | CLE |
| XXXXX | 0.55 | Eddie Plank | 34 | OAK |
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