| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 5.23 | 190305110_OAK_CHA |
| Ed Siever | BAL | 5.05 | 190305100_BAL_CHA |
| Doc White | CHA | 3.25 | 190305110_OAK_CHA |
| Sam Leever | PIT | 2.84 | 190305110_CIN_PIT |
| Bill Dinneen | BOS | 2.65 | 190305120_BOS_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike O'Neill | SLN | -1.63 | 190305101_CHN_SLN |
| Gene Wright | CLE | -1.11 | 190305120_BOS_CLE |
| Bob Ewing | CIN | -0.86 | 190305120_CIN_SFN |
| Chick Fraser | PHI | -0.76 | 190305120_PIT_PHI |
| Henry Thielman | LAN | -0.72 | 190305120_CHN_LAN |
Based on accumulated WAA for this season up to 1903-05-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.98 | Eddie Plank | 48 | OAK |
| +002+ | 2.85 | Roy Patterson | 44 | CHA |
| +004+ | 2.5 | George Mullin | 44 | DET |
| +005+ | 2.44 | Rube Waddell | 55 | OAK |
| +006+ | 2.22 | Cy Young | 52 | BOS |
| +007+ | 2.11 | Jack Sutthoff | 41 | CIN |
| +008+ | 2.11 | Addie Joss | 34 | CLE |
| +009+ | 1.97 | Jack Chesbro | 53 | NYA |
| +010+ | 1.86 | Patsy Flaherty | 40.3 | CHA |
| +011+ | 1.84 | Bill Donovan | 35.7 | DET |
| +012+ | 1.79 | Ed Siever | 36 | BAL |
| +013+ | 1.69 | Earl Moore | 26 | CLE |
| +014+ | 1.67 | Doc White | 32 | CHA |
| +016+ | 1.52 | Joe McGinnity | 57.7 | SFN |
| +017+ | 1.46 | Sam Leever | 38 | PIT |
| +018+ | 1.44 | Chief Bender | 49.3 | OAK |
| +019+ | 1.42 | Henry Schmidt | 52 | LAN |
| +022+ | 1.36 | Barney Wolfe | 19 | NYA |
| XXXXX | 1.1 | Tom Hughes | 29 | BOS |
| XXXXX | 1.01 | Chappie McFarland | 20 | SLN |
| XXXXX | 0.97 | Oscar Jones | 56 | LAN |
| XXXXX | 0.96 | Mal Eason | 29.3 | DET |
| XXXXX | 0.83 | Bill Dinneen | 46.7 | BOS |
| XXXXX | 0.82 | Red Donahue | 43 | BAL |
| XXXXX | 0.76 | Jack Powell | 28 | BAL |
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