| Starter | Tm | Tier | Game |
|---|---|---|---|
| Doc White | CHA | 3.99 | 190306080_CHA_OAK |
| Bill Dinneen | BOS | 3.56 | 190306060_CHA_BOS |
| Vic Willis | ATL | 2.64 | 190306060_ATL_PIT |
| Sam Leever | PIT | 2.5 | 190306080_PHI_PIT |
| Eddie Plank | OAK | 2.26 | 190306060_DET_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Evans | LAN | -2.68 | 190306071_LAN_SLN |
| Chick Fraser | PHI | -2.23 | 190306070_PHI_CIN |
| Clarence Currie | SLN | -0.87 | 190306072_LAN_SLN |
| Wiley Piatt | ATL | -0.67 | 190306080_ATL_CHN |
| Al Orth | MIN | -0.44 | 190306080_CLE_MIN |
Based on accumulated WAA for this season up to 1903-06-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.05 | Cy Young | 112.7 | BOS |
| +002+ | 4.68 | Eddie Plank | 99 | OAK |
| +003+ | 4.65 | Rube Waddell | 121 | OAK |
| +004+ | 4.63 | Addie Joss | 96 | CLE |
| +005+ | 4.08 | Bill Dinneen | 93.7 | BOS |
| +006+ | 3.9 | Doc White | 88 | CHA |
| +007+ | 3.76 | Bill Donovan | 78.7 | DET |
| +008+ | 3.59 | Sam Leever | 90 | PIT |
| +009+ | 3.49 | Jack Chesbro | 104.7 | NYA |
| +010+ | 3.32 | Earl Moore | 71 | CLE |
| +011+ | 3.32 | Jack Sutthoff | 84 | CIN |
| +012+ | 3.12 | Willie Sudhoff | 72 | BAL |
| +013+ | 3.03 | George Mullin | 93 | DET |
| +015+ | 2.77 | Ed Siever | 66 | BAL |
| +016+ | 2.61 | Roy Patterson | 74 | CHA |
| +017+ | 2.4 | Joe McGinnity | 133.7 | SFN |
| +019+ | 2.28 | Bill Bernhard | 80 | CLE |
| +022+ | 2.15 | Christy Mathewson | 110 | SFN |
| +024+ | 2.07 | Chief Bender | 91.3 | OAK |
| +031+ | 1.82 | Jack Taylor | 116.3 | CHN |
| +033+ | 1.67 | Red Donahue | 79 | BAL |
| +038+ | 1.42 | John Deering | 32.3 | DET |
| +040+ | 1.37 | Jack Powell | 78 | BAL |
| +041+ | 1.36 | Frank Kitson | 69 | DET |
| +044+ | 1.31 | Watty Lee | 62.7 | MIN |
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