| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 7.09 | 190305090_NYA_BOS |
| Rube Waddell | OAK | 4.95 | 190305080_MIN_OAK |
| Bill Donovan | DET | 3.61 | 190305090_DET_CLE |
| Doc White | CHA | 2.99 | 190305070_BAL_CHA |
| Christy Mathewson | SFN | 2.67 | 190305070_PHI_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Poole | CIN | -1.63 | 190305090_CIN_PIT |
| War Sanders | SLN | -1.54 | 190305070_CHN_SLN |
| Fred Mitchell | PHI | -0.62 | 190305070_PHI_SFN |
| Alex Hardy | CHN | -0.59 | 190305090_CHN_SLN |
| Wiley Piatt | ATL | -0.49 | 190305080_ATL_LAN |
Based on accumulated WAA for this season up to 1903-05-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.13 | Eddie Plank | 48 | OAK |
| +002+ | 3.1 | George Mullin | 35 | DET |
| +003+ | 2.86 | Jack Chesbro | 45 | NYA |
| +005+ | 2.42 | Roy Patterson | 34 | CHA |
| +006+ | 2.29 | Cy Young | 52 | BOS |
| +007+ | 2.2 | Addie Joss | 34 | CLE |
| +008+ | 1.92 | Bill Donovan | 35.7 | DET |
| +009+ | 1.66 | Rube Waddell | 44 | OAK |
| +010+ | 1.62 | Patsy Flaherty | 30.3 | CHA |
| +012+ | 1.45 | Jack Sutthoff | 32 | CIN |
| +013+ | 1.44 | Henry Schmidt | 52 | LAN |
| +014+ | 1.38 | Barney Wolfe | 19 | NYA |
| +015+ | 1.36 | Tom Hughes | 21 | BOS |
| +017+ | 1.33 | Jake Weimer | 45 | CHN |
| XXXXX | 1.24 | Chief Bender | 40 | OAK |
| XXXXX | 1.23 | Sam Leever | 29 | PIT |
| XXXXX | 1.21 | Ed Siever | 26 | BAL |
| XXXXX | 1.12 | Highball Wilson | 26 | MIN |
| XXXXX | 1.09 | Doc White | 21 | CHA |
| XXXXX | 1.04 | Chappie McFarland | 20 | SLN |
| XXXXX | 0.98 | Oscar Jones | 56 | LAN |
| XXXXX | 0.93 | Bill Dinneen | 37 | BOS |
| XXXXX | 0.91 | Joe McGinnity | 48.7 | SFN |
| XXXXX | 0.79 | Earl Moore | 17 | CLE |
| XXXXX | 0.78 | Jack Powell | 28 | BAL |
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