| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 8.45 | 190407190_BAL_OAK |
| Cy Young | BOS | 4.48 | 190407202_CLE_BOS |
| Jack Chesbro | NYA | 3.63 | 190407190_DET_NYA |
| Frank Owen | CHA | 1.71 | 190407180_CHA_MIN |
| Bill Donovan | DET | 1.03 | 190407190_DET_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Kaiser Wilhelm | ATL | -2.23 | 190407190_ATL_SLN |
| Joe Corbett | SLN | -1.83 | 190407190_ATL_SLN |
| Chick Fraser | PHI | -1.51 | 190407200_PHI_CHN |
| Oscar Jones | LAN | -1.22 | 190407180_LAN_CIN |
| Jack Harper | CIN | -1.03 | 190407190_LAN_CIN |
Based on accumulated WAA for this season up to 1904-07-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.43 | Rube Waddell | 205.3 | OAK |
| +002+ | 8.33 | Jack Chesbro | 235 | NYA |
| +003+ | 7.67 | Joe McGinnity | 239 | SFN |
| +004+ | 6.38 | Eddie Plank | 199 | OAK |
| +005+ | 6.31 | Frank Owen | 187.7 | CHA |
| +006+ | 6.28 | Cy Young | 194.3 | BOS |
| +009+ | 4.63 | Red Donahue | 126 | CLE |
| +010+ | 4.47 | Jesse Tannehill | 148.7 | BOS |
| +011+ | 4.21 | Ed Killian | 188 | DET |
| +012+ | 4.16 | Harry Howell | 151.7 | BAL |
| +014+ | 4 | Patsy Flaherty | 150 | TOT |
| +015+ | 3.97 | Norwood Gibson | 132 | BOS |
| +018+ | 3.48 | Jack Taylor | 183 | SLN |
| +021+ | 3.36 | Bill Dinneen | 142.7 | BOS |
| +023+ | 3.22 | George Mullin | 208 | DET |
| +024+ | 3.21 | Earl Moore | 146.7 | CLE |
| +027+ | 3.11 | Frank Smith | 74 | CHA |
| +029+ | 3.03 | Fred Glade | 134.7 | BAL |
| +032+ | 2.82 | Ed Siever | 137.3 | BAL |
| +034+ | 2.64 | Bill Bernhard | 165 | CLE |
| +035+ | 2.6 | Weldon Henley | 145.7 | OAK |
| +037+ | 2.54 | Kid Nichols | 149 | SLN |
| +042+ | 2.44 | Doc White | 112 | CHA |
| +043+ | 2.34 | Bill Donovan | 171.7 | DET |
| +056+ | 1.63 | George Winter | 85 | BOS |
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