| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 6.06 | 190305260_OAK_CLE |
| Jack Taylor | CHN | 2.52 | 190305260_CHN_SFN |
| Christy Mathewson | SFN | 2.49 | 190305260_CHN_SFN |
| Vic Willis | ATL | 1.95 | 190305270_PIT_ATL |
| Tom Hughes | BOS | 0.2 | 190305260_BOS_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Evans | LAN | -2.12 | 190305280_SLN_LAN |
| War Sanders | SLN | -1.73 | 190305280_SLN_LAN |
| Chick Fraser | PHI | -1.28 | 190305260_CIN_PHI |
| Bob Ewing | CIN | -0.74 | 190305270_CIN_PHI |
| Kaiser Wilhelm | PIT | -0.62 | 190305270_PIT_ATL |
Based on accumulated WAA for this season up to 1903-05-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.98 | Eddie Plank | 81 | OAK |
| +002+ | 3.9 | Rube Waddell | 93 | OAK |
| +003+ | 3.83 | Cy Young | 87.7 | BOS |
| +004+ | 3.47 | Jack Chesbro | 89.7 | NYA |
| +005+ | 3.4 | Bill Donovan | 62.7 | DET |
| +006+ | 3.35 | George Mullin | 75 | DET |
| +007+ | 3.3 | Addie Joss | 70 | CLE |
| +008+ | 3.26 | Roy Patterson | 64 | CHA |
| +009+ | 2.68 | Earl Moore | 53 | CLE |
| +010+ | 2.59 | Doc White | 59 | CHA |
| +011+ | 2.54 | Jack Sutthoff | 66 | CIN |
| +013+ | 2.39 | Bill Dinneen | 66.7 | BOS |
| +014+ | 2.29 | Patsy Flaherty | 69.3 | CHA |
| +015+ | 2.22 | Jack Taylor | 98.3 | CHN |
| +017+ | 2.06 | Willie Sudhoff | 54 | BAL |
| +018+ | 2.06 | Ed Siever | 54 | BAL |
| +019+ | 1.9 | Mal Eason | 47.3 | DET |
| +020+ | 1.9 | Sam Leever | 63 | PIT |
| +021+ | 1.88 | Bill Bernhard | 62 | CLE |
| +022+ | 1.84 | Jesse Tannehill | 54.3 | NYA |
| +024+ | 1.79 | Joe McGinnity | 98.7 | SFN |
| +026+ | 1.72 | Red Donahue | 70 | BAL |
| +028+ | 1.67 | Jack Powell | 63 | BAL |
| +032+ | 1.39 | Chief Bender | 65.3 | OAK |
| +034+ | 1.31 | Frank Kitson | 52 | DET |
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