| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 7.25 | 190407130_SFN_CIN |
| Cy Young | BOS | 6.66 | 190407130_DET_BOS |
| Eddie Plank | OAK | 2.79 | 190407110_MIN_OAK |
| Jack Taylor | SLN | 2.24 | 190407120_LAN_SLN |
| Frank Owen | CHA | 1.47 | 190407120_CHA_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tully Sparks | PHI | -2.86 | 190407130_PHI_PIT |
| Vic Willis | ATL | -2.63 | 190407120_ATL_CHN |
| Happy Townsend | MIN | -0.94 | 190407120_BAL_MIN |
| Jesse Stovall | DET | -0.93 | 190407130_DET_BOS |
| Ed Poole | LAN | -0.74 | 190407130_LAN_SLN |
Based on accumulated WAA for this season up to 1904-07-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.43 | Rube Waddell | 187.3 | OAK |
| +002+ | 8.01 | Joe McGinnity | 228 | SFN |
| +003+ | 7.2 | Cy Young | 181 | BOS |
| +004+ | 6.97 | Jack Chesbro | 212 | NYA |
| +005+ | 5.88 | Frank Owen | 179.7 | CHA |
| +007+ | 5.17 | Eddie Plank | 181 | OAK |
| +010+ | 4.64 | Patsy Flaherty | 132 | TOT |
| +011+ | 4.3 | Harry Howell | 135.7 | BAL |
| +012+ | 4.25 | Jesse Tannehill | 139.7 | BOS |
| +017+ | 3.46 | Jack Taylor | 174 | SLN |
| +018+ | 3.44 | Ed Killian | 173 | DET |
| +020+ | 3.15 | Nick Altrock | 164.3 | CHA |
| +021+ | 3.09 | Bill Dinneen | 130.7 | BOS |
| +024+ | 2.96 | George Mullin | 200 | DET |
| +025+ | 2.79 | Norwood Gibson | 114 | BOS |
| +027+ | 2.75 | Ed Siever | 137.3 | BAL |
| +033+ | 2.26 | Earl Moore | 123.3 | CLE |
| +036+ | 2.21 | Doc White | 104 | CHA |
| +041+ | 2.08 | Kid Nichols | 140 | SLN |
| +042+ | 2.07 | Jake Weimer | 141.7 | CHN |
| +043+ | 2.04 | Bill Bernhard | 153 | CLE |
| +044+ | 1.91 | Weldon Henley | 136.7 | OAK |
| +045+ | 1.89 | Frank Kitson | 61 | DET |
| +047+ | 1.83 | George Winter | 71.3 | BOS |
| +048+ | 1.82 | Barney Pelty | 125.3 | BAL |
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