| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 7.09 | 190305090_NYA_BOS |
| Rube Waddell | OAK | 5.23 | 190305110_OAK_CHA |
| Ed Siever | BAL | 5.05 | 190305100_BAL_CHA |
| Bill Donovan | DET | 3.61 | 190305090_DET_CLE |
| Doc White | CHA | 3.25 | 190305110_OAK_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike O'Neill | SLN | -1.63 | 190305101_CHN_SLN |
| Ed Poole | CIN | -1.63 | 190305090_CIN_PIT |
| Alex Hardy | CHN | -0.59 | 190305090_CHN_SLN |
| Willie Sudhoff | BAL | -0.58 | 190305110_MIN_BAL |
| Happy Townsend | MIN | -0.43 | 190305110_MIN_BAL |
Based on accumulated WAA for this season up to 1903-05-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.99 | Eddie Plank | 48 | OAK |
| +003+ | 2.78 | Jack Chesbro | 45 | NYA |
| +004+ | 2.5 | George Mullin | 44 | DET |
| +005+ | 2.44 | Rube Waddell | 55 | OAK |
| +006+ | 2.3 | Roy Patterson | 34 | CHA |
| +007+ | 2.21 | Cy Young | 52 | BOS |
| +008+ | 2.11 | Addie Joss | 34 | CLE |
| +009+ | 2.1 | Jack Sutthoff | 41 | CIN |
| +010+ | 1.87 | Patsy Flaherty | 40.3 | CHA |
| +011+ | 1.84 | Bill Donovan | 35.7 | DET |
| +012+ | 1.72 | Ed Siever | 36 | BAL |
| +013+ | 1.69 | Earl Moore | 26 | CLE |
| +014+ | 1.68 | Doc White | 32 | CHA |
| +015+ | 1.49 | Joe McGinnity | 57.7 | SFN |
| +016+ | 1.45 | Sam Leever | 38 | PIT |
| +017+ | 1.4 | Henry Schmidt | 52 | LAN |
| +019+ | 1.34 | Barney Wolfe | 19 | NYA |
| XXXXX | 1.12 | Chief Bender | 40 | OAK |
| XXXXX | 1.1 | Tom Hughes | 29 | BOS |
| XXXXX | 1.08 | Highball Wilson | 26 | MIN |
| XXXXX | 1 | Chappie McFarland | 20 | SLN |
| XXXXX | 0.96 | Mal Eason | 29.3 | DET |
| XXXXX | 0.94 | Oscar Jones | 56 | LAN |
| XXXXX | 0.73 | Bill Dinneen | 37.7 | BOS |
| XXXXX | 0.71 | Jack Powell | 28 | BAL |
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