| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 4.58 | 190308110_OAK_BOS |
| Cy Young | BOS | 4.51 | 190308100_OAK_BOS |
| Doc White | CHA | 3.75 | 190308090_BAL_CHA |
| Earl Moore | CLE | 2.89 | 190308100_CHA_CLE |
| Ed Siever | BAL | 1.37 | 190308090_BAL_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Henry Schmidt | LAN | -2.76 | 190308100_SFN_LAN |
| Cy Falkenberg | PIT | -0.67 | 190308100_SLN_PIT |
| Al Orth | MIN | -0.23 | 190308110_MIN_NYA |
| Chappie McFarland | SLN | -0.17 | 190308100_SLN_PIT |
| Harry Howell | NYA | -0.07 | 190308110_MIN_NYA |
Based on accumulated WAA for this season up to 1903-08-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.71 | Cy Young | 239.7 | BOS |
| +002+ | 9.69 | Earl Moore | 194.7 | CLE |
| +003+ | 9.47 | Doc White | 217.3 | CHA |
| +004+ | 9.39 | Bill Donovan | 209 | DET |
| +005+ | 9.31 | Rube Waddell | 284 | OAK |
| +006+ | 9.08 | Willie Sudhoff | 195.3 | BAL |
| +007+ | 8.6 | Addie Joss | 238.7 | CLE |
| +008+ | 7.69 | George Mullin | 218 | DET |
| +009+ | 7.44 | Bill Dinneen | 202.7 | BOS |
| +010+ | 7.29 | Eddie Plank | 219.3 | OAK |
| +012+ | 5.96 | Tom Hughes | 155.7 | BOS |
| +015+ | 5.38 | Chief Bender | 186.3 | OAK |
| +017+ | 5.02 | Frank Kitson | 165.7 | DET |
| +019+ | 4.83 | Ed Siever | 165 | BAL |
| +020+ | 4.68 | Jack Chesbro | 232.3 | NYA |
| +021+ | 4.52 | Christy Mathewson | 256.3 | SFN |
| +024+ | 3.93 | Red Donahue | 151 | TOT |
| +025+ | 3.9 | Clark Griffith | 159.7 | NYA |
| +026+ | 3.7 | Roy Patterson | 178 | CHA |
| +035+ | 3.09 | Joe McGinnity | 299.7 | SFN |
| +045+ | 2.57 | Sam Leever | 189.7 | PIT |
| +046+ | 2.55 | Highball Wilson | 179.3 | MIN |
| +047+ | 2.54 | Casey Patten | 228 | MIN |
| +052+ | 2.12 | Jesse Tannehill | 163.3 | NYA |
| +056+ | 1.92 | Watty Lee | 81.7 | MIN |
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