| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 13.27 | 190405302_OAK_NYA |
| Joe McGinnity | SFN | 9.24 | 190405280_LAN_SFN |
| Bill Dinneen | BOS | 5.07 | 190405280_MIN_BOS |
| Doc White | CHA | 3.2 | 190405280_CHA_CLE |
| Ed Siever | BAL | 2.93 | 190405280_BAL_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Johnny Lush | PHI | -3.62 | 190405301_SFN_PHI |
| Jack Harper | CIN | -1.84 | 190405301_CHN_CIN |
| Ed Poole | LAN | -1.46 | 190405290_SFN_LAN |
| Davey Dunkle | MIN | -0.58 | 190405302_MIN_BOS |
| Joe Corbett | SLN | -0.43 | 190405280_SLN_CHN |
Based on accumulated WAA for this season up to 1904-05-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.44 | Rube Waddell | 112 | OAK |
| +002+ | 5.1 | Joe McGinnity | 106 | SFN |
| +003+ | 4.06 | Jesse Tannehill | 78.7 | BOS |
| +005+ | 4 | Cy Young | 83 | BOS |
| +004+ | 4 | Red Donahue | 71 | CLE |
| +006+ | 3.7 | Jack Chesbro | 110 | NYA |
| +007+ | 3.3 | Bill Dinneen | 77 | BOS |
| +011+ | 2.75 | Frank Owen | 80 | CHA |
| +013+ | 2.49 | Norwood Gibson | 54 | BOS |
| +016+ | 2.34 | Ed Killian | 96.3 | DET |
| +019+ | 2.22 | Eddie Plank | 96 | OAK |
| +023+ | 1.7 | Jake Weimer | 78.3 | CHN |
| +026+ | 1.47 | Harry Howell | 63.7 | BAL |
| +028+ | 1.42 | Weldon Henley | 83.3 | OAK |
| +029+ | 1.41 | Fred Glade | 54.7 | BAL |
| +033+ | 1.37 | Bill Bernhard | 77 | CLE |
| +034+ | 1.35 | Ed Siever | 76 | BAL |
| XXXXX | 1.23 | Casey Patten | 86.7 | MIN |
| XXXXX | 1.18 | Nick Altrock | 71 | CHA |
| XXXXX | 1.05 | Chappie McFarland | 61 | SLN |
| XXXXX | 0.92 | George Mullin | 100 | DET |
| XXXXX | 0.84 | Earl Moore | 44 | CLE |
| XXXXX | 0.76 | Claude Elliott | 43 | CIN |
| XXXXX | 0.75 | Jack Powell | 86.7 | NYA |
| XXXXX | 0.69 | Ed Walsh | 29 | CHA |
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