| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 5.09 | 190308060_BOS_OAK |
| Bill Donovan | DET | 5.09 | 190308060_DET_CLE |
| Doc White | CHA | 3.69 | 190308060_BAL_CHA |
| Eddie Plank | OAK | 2.57 | 190308070_BOS_OAK |
| Willie Sudhoff | BAL | 2.51 | 190308070_BAL_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike O'Neill | SLN | -4.47 | 190308082_CIN_SLN |
| Fred Mitchell | PHI | -4.45 | 190308072_PHI_SFN |
| Togie Pittinger | ATL | -3.82 | 190308071_LAN_ATL |
| Henry Schmidt | LAN | -2.9 | 190308082_LAN_SFN |
| Jack Harper | CIN | -1.41 | 190308082_CIN_SLN |
Based on accumulated WAA for this season up to 1903-08-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.64 | Rube Waddell | 276 | OAK |
| +002+ | 9.43 | Bill Donovan | 209 | DET |
| +003+ | 9.37 | Cy Young | 230.7 | BOS |
| +004+ | 9.14 | Earl Moore | 185.7 | CLE |
| +005+ | 9.11 | Willie Sudhoff | 195.3 | BAL |
| +006+ | 8.67 | Doc White | 208.3 | CHA |
| +007+ | 8.27 | Addie Joss | 229.7 | CLE |
| +008+ | 7.73 | George Mullin | 218 | DET |
| +009+ | 7.49 | Bill Dinneen | 202.7 | BOS |
| +010+ | 7.2 | Eddie Plank | 211.3 | OAK |
| +014+ | 5.4 | Tom Hughes | 146.7 | BOS |
| +015+ | 5.38 | Chief Bender | 186.3 | OAK |
| +016+ | 5.05 | Frank Kitson | 165.7 | DET |
| +019+ | 4.54 | Ed Siever | 157 | BAL |
| +020+ | 4.46 | Roy Patterson | 170 | CHA |
| +023+ | 4.14 | Jack Chesbro | 223.3 | NYA |
| +024+ | 3.96 | Christy Mathewson | 247.3 | SFN |
| +025+ | 3.95 | Red Donahue | 151 | TOT |
| +026+ | 3.93 | Clark Griffith | 159.7 | NYA |
| +035+ | 3.09 | Highball Wilson | 171.3 | MIN |
| +041+ | 2.83 | Joe McGinnity | 291.7 | SFN |
| +044+ | 2.59 | Sam Leever | 189.7 | PIT |
| +046+ | 2.54 | Casey Patten | 228 | MIN |
| +052+ | 2.15 | Jesse Tannehill | 163.3 | NYA |
| +054+ | 1.92 | Watty Lee | 81.7 | MIN |
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