| Starter | Tm | Tier | Game |
|---|---|---|---|
| Earl Moore | CLE | 4.44 | 190308220_OAK_CLE |
| Cy Young | BOS | 4.43 | 190308210_BOS_CHA |
| Bill Donovan | DET | 3.94 | 190308211_OAK_DET |
| Rube Waddell | OAK | 3.67 | 190308211_OAK_DET |
| Willie Sudhoff | BAL | 3.61 | 190308202_NYA_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -4.03 | 190308200_SLN_PHI |
| Henry Schmidt | LAN | -3.11 | 190308221_CIN_LAN |
| Bob Rhoads | SLN | -1.72 | 190308212_SLN_PHI |
| Ed Poole | CIN | -1.18 | 190308212_CIN_ATL |
| Ed Doheny | PIT | -1.16 | 190308221_PIT_PHI |
Based on accumulated WAA for this season up to 1903-08-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.31 | Earl Moore | 230.7 | CLE |
| +002+ | 11.2 | Cy Young | 266.7 | BOS |
| +003+ | 10.91 | Willie Sudhoff | 221.7 | BAL |
| +004+ | 10.81 | Rube Waddell | 324 | OAK |
| +005+ | 10.77 | Bill Donovan | 236 | DET |
| +006+ | 10.2 | Addie Joss | 265.7 | CLE |
| +007+ | 10.01 | Doc White | 239.7 | CHA |
| +008+ | 9.38 | George Mullin | 253 | DET |
| +009+ | 8.35 | Eddie Plank | 245.7 | OAK |
| +010+ | 8.29 | Bill Dinneen | 229.7 | BOS |
| +012+ | 6.61 | Frank Kitson | 192.7 | DET |
| +017+ | 5.41 | Jack Chesbro | 257.3 | NYA |
| +018+ | 5.39 | Red Donahue | 187 | TOT |
| +020+ | 5.11 | Ed Siever | 174 | BAL |
| +019+ | 5.11 | Tom Hughes | 168.7 | BOS |
| +021+ | 5.1 | Chief Bender | 214.3 | OAK |
| +023+ | 4.78 | Barney Wolfe | 107.3 | NYA |
| +025+ | 4.51 | Clark Griffith | 177 | NYA |
| +026+ | 4.42 | Roy Patterson | 209.7 | CHA |
| +028+ | 4.15 | Sam Leever | 220 | PIT |
| +029+ | 4.14 | Christy Mathewson | 289.3 | SFN |
| +044+ | 2.96 | Jack Powell | 224.3 | BAL |
| +047+ | 2.68 | Casey Patten | 236 | MIN |
| +052+ | 2.14 | Highball Wilson | 188.3 | MIN |
| +056+ | 2.02 | Joe McGinnity | 324.7 | SFN |
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