| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 6.66 | 190305130_BOS_CLE |
| Rube Waddell | OAK | 6.14 | 190305150_OAK_BAL |
| Ed Siever | BAL | 5.06 | 190305150_OAK_BAL |
| Bill Donovan | DET | 4.09 | 190305130_NYA_DET |
| Doc White | CHA | 3.71 | 190305140_OAK_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike O'Neill | SLN | -1.76 | 190305140_SLN_ATL |
| Jack McFetridge | PHI | -1.1 | 190305140_PIT_PHI |
| Jack Harper | CIN | -1.08 | 190305130_CIN_SFN |
| Gene Wright | CLE | -0.92 | 190305150_NYA_CLE |
| John Malarkey | ATL | -0.81 | 190305150_SLN_ATL |
Based on accumulated WAA for this season up to 1903-05-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.86 | Eddie Plank | 57 | OAK |
| +002+ | 3.09 | Rube Waddell | 66 | OAK |
| +003+ | 2.98 | Addie Joss | 43 | CLE |
| +004+ | 2.82 | Roy Patterson | 44 | CHA |
| +005+ | 2.72 | George Mullin | 53 | DET |
| +006+ | 2.63 | Cy Young | 60.3 | BOS |
| +007+ | 2.49 | Bill Donovan | 44.7 | DET |
| +009+ | 2.32 | Doc White | 41 | CHA |
| +010+ | 2.15 | Jack Sutthoff | 50 | CIN |
| +011+ | 2.08 | Patsy Flaherty | 49.3 | CHA |
| +012+ | 1.97 | Jack Chesbro | 53 | NYA |
| +013+ | 1.91 | Sam Leever | 47 | PIT |
| +014+ | 1.81 | Ed Siever | 45 | BAL |
| +018+ | 1.63 | Henry Schmidt | 61 | LAN |
| +019+ | 1.54 | Noodles Hahn | 44 | CIN |
| +020+ | 1.52 | Earl Moore | 35 | CLE |
| +023+ | 1.41 | Chief Bender | 49.3 | OAK |
| +026+ | 1.31 | Joe McGinnity | 66.7 | SFN |
| XXXXX | 1.17 | Oscar Jones | 65 | LAN |
| XXXXX | 1.01 | Bill Dinneen | 48.7 | BOS |
| XXXXX | 1 | Jack Powell | 37 | BAL |
| XXXXX | 0.92 | Mal Eason | 29.3 | DET |
| XXXXX | 0.92 | Jack Taylor | 71 | CHN |
| XXXXX | 0.83 | Barney Wolfe | 22 | NYA |
| XXXXX | 0.77 | Red Donahue | 43 | BAL |
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