| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 5.59 | 190306090_CHA_OAK |
| Doc White | CHA | 3.99 | 190306080_CHA_OAK |
| Christy Mathewson | SFN | 3.07 | 190306090_SFN_SLN |
| Sam Leever | PIT | 2.5 | 190306080_PHI_PIT |
| Vic Willis | ATL | 2.15 | 190306090_ATL_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Evans | LAN | -2.68 | 190306071_LAN_SLN |
| Chick Fraser | PHI | -2.23 | 190306070_PHI_CIN |
| War Sanders | SLN | -1.7 | 190306090_SFN_SLN |
| Wiley Piatt | ATL | -0.67 | 190306080_ATL_CHN |
| Gene Wright | CLE | -0.54 | 190306090_CLE_MIN |
Based on accumulated WAA for this season up to 1903-06-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.5 | Rube Waddell | 130 | OAK |
| +002+ | 4.77 | Cy Young | 120.7 | BOS |
| +003+ | 4.69 | Eddie Plank | 99 | OAK |
| +004+ | 4.63 | Addie Joss | 96 | CLE |
| +005+ | 4.14 | Jack Chesbro | 113.7 | NYA |
| +006+ | 4.09 | Bill Dinneen | 93.7 | BOS |
| +007+ | 3.93 | Doc White | 88 | CHA |
| +008+ | 3.89 | George Mullin | 102 | DET |
| +009+ | 3.76 | Bill Donovan | 78.7 | DET |
| +010+ | 3.59 | Sam Leever | 90 | PIT |
| +012+ | 3.33 | Jack Sutthoff | 84 | CIN |
| +011+ | 3.33 | Earl Moore | 71 | CLE |
| +013+ | 3.15 | Willie Sudhoff | 72 | BAL |
| +015+ | 2.8 | Ed Siever | 66 | BAL |
| +016+ | 2.64 | Roy Patterson | 74 | CHA |
| +018+ | 2.46 | Jack Taylor | 125.3 | CHN |
| +019+ | 2.42 | Joe McGinnity | 133.7 | SFN |
| +023+ | 2.29 | Christy Mathewson | 116 | SFN |
| +024+ | 2.29 | Bill Bernhard | 80 | CLE |
| +028+ | 2.08 | Chief Bender | 91.3 | OAK |
| +029+ | 2.03 | Red Donahue | 87 | BAL |
| +039+ | 1.42 | John Deering | 32.3 | DET |
| +041+ | 1.4 | Jack Powell | 78 | BAL |
| +045+ | 1.36 | Frank Kitson | 69 | DET |
| +047+ | 1.31 | Watty Lee | 62.7 | MIN |
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