| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 6.74 | 190305200_BOS_BAL |
| Rube Waddell | OAK | 6.64 | 190305190_OAK_BAL |
| Sam Leever | PIT | 3.07 | 190305200_PIT_SFN |
| Dummy Taylor | SFN | 2.45 | 190305190_PIT_SFN |
| Jack Taylor | CHN | 2.22 | 190305200_CHN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Evans | LAN | -2.99 | 190305190_CIN_LAN |
| Fred Mitchell | PHI | -2.29 | 190305190_SLN_PHI |
| Ed Poole | CIN | -1.92 | 190305190_CIN_LAN |
| Mike O'Neill | SLN | -0.95 | 190305200_SLN_PHI |
| Gene Wright | CLE | -0.59 | 190305190_MIN_CLE |
Based on accumulated WAA for this season up to 1903-05-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.65 | Eddie Plank | 70 | OAK |
| +002+ | 3.38 | Addie Joss | 61 | CLE |
| +003+ | 3.1 | Rube Waddell | 75 | OAK |
| +004+ | 3.06 | Cy Young | 78.7 | BOS |
| +005+ | 3.06 | Bill Donovan | 53.7 | DET |
| +006+ | 2.84 | George Mullin | 62 | DET |
| +007+ | 2.55 | Roy Patterson | 53 | CHA |
| +008+ | 2.36 | Jack Chesbro | 62 | NYA |
| +010+ | 2.23 | Sam Leever | 55 | PIT |
| +011+ | 2.22 | Patsy Flaherty | 58.3 | CHA |
| +012+ | 2.18 | Jack Sutthoff | 57 | CIN |
| +014+ | 2.06 | Doc White | 50 | CHA |
| +016+ | 1.89 | Earl Moore | 44 | CLE |
| +017+ | 1.82 | Joe McGinnity | 79.7 | SFN |
| +018+ | 1.79 | Bill Dinneen | 57.7 | BOS |
| +019+ | 1.73 | Mal Eason | 38.3 | DET |
| +020+ | 1.71 | Jack Taylor | 81 | CHN |
| +021+ | 1.68 | Ed Siever | 45 | BAL |
| +023+ | 1.5 | Chief Bender | 65.3 | OAK |
| +024+ | 1.47 | Willie Sudhoff | 45 | BAL |
| +029+ | 1.28 | Jesse Tannehill | 45.3 | NYA |
| XXXXX | 1.14 | Jack Powell | 46 | BAL |
| XXXXX | 1.11 | Bill Bernhard | 53 | CLE |
| XXXXX | 1.08 | Bob Wicker | 53.3 | TOT |
| XXXXX | 0.89 | Red Donahue | 52 | BAL |
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