| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 4.92 | 190309100_MIN_BOS |
| Eddie Plank | OAK | 2.43 | 190309092_OAK_NYA |
| Roy Patterson | CHA | 1.35 | 190309080_CHA_CLE |
| Red Donahue | CLE | 1.1 | 190309091_BAL_CLE |
| Jack Chesbro | NYA | 1.05 | 190309092_OAK_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -4.77 | 190309081_PHI_ATL |
| Togie Pittinger | ATL | -3.99 | 190309092_ATL_LAN |
| Bob Rhoads | CLE | -2.94 | 190309092_BAL_CLE |
| Dummy Taylor | SFN | -1.78 | 190309102_SFN_PHI |
| Ned Garvin | LAN | -1.57 | 190309091_ATL_LAN |
Based on accumulated WAA for this season up to 1903-09-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.95 | Cy Young | 314.7 | BOS |
| +003+ | 11.17 | Bill Donovan | 262 | DET |
| +004+ | 10.71 | George Mullin | 282.7 | DET |
| +005+ | 10.5 | Doc White | 265.7 | CHA |
| +007+ | 10.28 | Willie Sudhoff | 256.7 | BAL |
| +008+ | 10.21 | Bill Dinneen | 264 | BOS |
| +009+ | 10.03 | Rube Waddell | 324 | OAK |
| +010+ | 8.2 | Eddie Plank | 281.7 | OAK |
| +014+ | 6.89 | Frank Kitson | 225.7 | DET |
| +015+ | 6.87 | Tom Hughes | 213.7 | BOS |
| +016+ | 6.42 | Roy Patterson | 252.7 | CHA |
| +019+ | 6.36 | Red Donahue | 228 | TOT |
| +021+ | 6.08 | Jack Chesbro | 290.3 | NYA |
| +022+ | 6.07 | Jack Powell | 268.3 | BAL |
| +023+ | 5.82 | Ed Siever | 209 | BAL |
| +024+ | 5.45 | Clark Griffith | 204 | NYA |
| +025+ | 5.4 | Chief Bender | 240.3 | OAK |
| +028+ | 4.95 | Sam Leever | 267 | PIT |
| +039+ | 3.73 | Jesse Tannehill | 220.3 | NYA |
| +044+ | 3.51 | Joe McGinnity | 389.7 | SFN |
| +046+ | 3.32 | Highball Wilson | 223.3 | MIN |
| +049+ | 3.01 | Christy Mathewson | 333 | SFN |
| +054+ | 2.74 | Casey Patten | 262 | MIN |
| +056+ | 2.68 | Rube Kisinger | 93.7 | DET |
| +057+ | 2.64 | Patsy Flaherty | 264.7 | CHA |
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