| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Donovan | DET | 3.98 | 190304290_CHA_DET |
| Vic Willis | ATL | 2.81 | 190304290_ATL_LAN |
| Christy Mathewson | SFN | 2.62 | 190305010_SFN_PHI |
| Bill Dinneen | BOS | 2.45 | 190305010_OAK_BOS |
| Sam Leever | PIT | 2.35 | 190304290_PIT_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Bernhard | CLE | -1.18 | 190304290_BAL_CLE |
| Wiley Piatt | ATL | -1.05 | 190304300_ATL_LAN |
| Ed Poole | CIN | -1.02 | 190304290_CHN_CIN |
| Jake Weimer | CHN | -0.38 | 190304290_CHN_CIN |
| Red Donahue | BAL | -0.36 | 190304290_BAL_CLE |
Based on accumulated WAA for this season up to 1903-05-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 1.82 | Jack Chesbro | 27 | NYA |
| +003+ | 1.78 | Togie Pittinger | 27 | ATL |
| +004+ | 1.63 | Addie Joss | 17 | CLE |
| +005+ | 1.48 | Henry Schmidt | 36 | LAN |
| +006+ | 1.45 | Bill Donovan | 18 | DET |
| +007+ | 1.45 | George Mullin | 18 | DET |
| XXXXX | 1.19 | Cy Young | 25 | BOS |
| XXXXX | 1.13 | Rube Waddell | 35 | OAK |
| XXXXX | 1 | Sam Leever | 20 | PIT |
| XXXXX | 0.93 | Mal Eason | 17 | DET |
| XXXXX | 0.93 | Eddie Plank | 21 | OAK |
| XXXXX | 0.86 | Tom Hughes | 12 | BOS |
| XXXXX | 0.85 | Bob Wicker | 19.7 | TOT |
| XXXXX | 0.85 | Roy Patterson | 16 | CHA |
| XXXXX | 0.84 | Casey Patten | 18 | MIN |
| XXXXX | 0.83 | Oscar Jones | 38 | LAN |
| XXXXX | 0.76 | Earl Moore | 9 | CLE |
| XXXXX | 0.76 | Jack Sutthoff | 23 | CIN |
| XXXXX | 0.72 | Chief Bender | 23 | OAK |
| XXXXX | 0.71 | Brickyard Kennedy | 9 | PIT |
| XXXXX | 0.68 | Patsy Flaherty | 20.3 | CHA |
| XXXXX | 0.62 | Ed Siever | 10 | BAL |
| XXXXX | 0.55 | Harry Howell | 21 | NYA |
| XXXXX | 0.54 | Tully Sparks | 9 | PHI |
| XXXXX | 0.52 | Chappie McFarland | 9 | SLN |
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