| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 4.51 | 190308100_OAK_BOS |
| Doc White | CHA | 3.75 | 190308090_BAL_CHA |
| Earl Moore | CLE | 2.89 | 190308100_CHA_CLE |
| Eddie Plank | OAK | 2.2 | 190308100_OAK_BOS |
| George Mullin | DET | 2 | 190308080_DET_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike O'Neill | SLN | -4.47 | 190308082_CIN_SLN |
| Henry Schmidt | LAN | -2.9 | 190308082_LAN_SFN |
| Jack Harper | CIN | -1.41 | 190308082_CIN_SLN |
| Cy Falkenberg | PIT | -0.67 | 190308100_SLN_PIT |
| Jake Weimer | CHN | -0.08 | 190308080_PIT_CHN |
Based on accumulated WAA for this season up to 1903-08-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.72 | Cy Young | 239.7 | BOS |
| +002+ | 9.71 | Earl Moore | 194.7 | CLE |
| +003+ | 9.63 | Rube Waddell | 276 | OAK |
| +004+ | 9.46 | Doc White | 217.3 | CHA |
| +005+ | 9.4 | Bill Donovan | 209 | DET |
| +006+ | 9.09 | Willie Sudhoff | 195.3 | BAL |
| +007+ | 8.23 | Addie Joss | 229.7 | CLE |
| +008+ | 7.7 | George Mullin | 218 | DET |
| +009+ | 7.45 | Bill Dinneen | 202.7 | BOS |
| +010+ | 7.28 | Eddie Plank | 219.3 | OAK |
| +014+ | 5.38 | Tom Hughes | 146.7 | BOS |
| +015+ | 5.37 | Chief Bender | 186.3 | OAK |
| +017+ | 5.03 | Frank Kitson | 165.7 | DET |
| +019+ | 4.84 | Ed Siever | 165 | BAL |
| +020+ | 4.69 | Jack Chesbro | 232.3 | NYA |
| +021+ | 4.51 | Christy Mathewson | 256.3 | SFN |
| +024+ | 3.94 | Red Donahue | 151 | TOT |
| +025+ | 3.9 | Clark Griffith | 159.7 | NYA |
| +026+ | 3.69 | Roy Patterson | 178 | CHA |
| +042+ | 2.79 | Joe McGinnity | 291.7 | SFN |
| +045+ | 2.58 | Sam Leever | 189.7 | PIT |
| +046+ | 2.54 | Highball Wilson | 179.3 | MIN |
| +047+ | 2.53 | Casey Patten | 228 | MIN |
| +052+ | 2.13 | Jesse Tannehill | 163.3 | NYA |
| +056+ | 1.91 | Watty Lee | 81.7 | MIN |
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