| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 5.49 | 190306230_BOS_DET |
| Bill Donovan | DET | 3.47 | 190306230_BOS_DET |
| Christy Mathewson | SFN | 3.35 | 190306222_CHN_SFN |
| Eddie Plank | OAK | 2.6 | 190306210_OAK_CHA |
| Roy Patterson | CHA | 1.38 | 190306230_MIN_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Evans | LAN | -3.86 | 190306222_SLN_LAN |
| Ed Poole | CIN | -1.89 | 190306222_CIN_PHI |
| Chick Fraser | PHI | -1.34 | 190306222_CIN_PHI |
| Bob Rhoads | SLN | -1.18 | 190306230_SLN_ATL |
| John Malarkey | ATL | -0.71 | 190306230_SLN_ATL |
Based on accumulated WAA for this season up to 1903-06-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.18 | Rube Waddell | 161.3 | OAK |
| +002+ | 6.11 | Cy Young | 138.7 | BOS |
| +003+ | 5.66 | Addie Joss | 117.3 | CLE |
| +004+ | 5.02 | Bill Donovan | 104.7 | DET |
| +005+ | 4.9 | George Mullin | 119 | DET |
| +006+ | 4.82 | Earl Moore | 99 | CLE |
| +007+ | 4.64 | Sam Leever | 108 | PIT |
| +008+ | 4.54 | Jack Chesbro | 122.7 | NYA |
| +009+ | 4.51 | Eddie Plank | 116 | OAK |
| +010+ | 4.41 | Doc White | 106 | CHA |
| +011+ | 3.96 | Bill Dinneen | 117.7 | BOS |
| +012+ | 3.94 | Willie Sudhoff | 95 | BAL |
| +013+ | 3.68 | Joe McGinnity | 165.7 | SFN |
| +014+ | 3.59 | Roy Patterson | 99.3 | CHA |
| +015+ | 3.2 | Chief Bender | 122.3 | OAK |
| +023+ | 2.65 | Jack Sutthoff | 102 | CIN |
| +024+ | 2.49 | Tom Hughes | 83.7 | BOS |
| +027+ | 2.29 | Ed Siever | 68 | BAL |
| +029+ | 2.1 | Christy Mathewson | 143 | SFN |
| +031+ | 2.04 | Red Donahue | 104 | BAL |
| +036+ | 1.79 | Bill Bernhard | 98 | CLE |
| +037+ | 1.77 | Happy Townsend | 73.3 | MIN |
| +039+ | 1.73 | John Deering | 40.7 | DET |
| +038+ | 1.73 | Jack Taylor | 152 | CHN |
| +040+ | 1.71 | Barney Wolfe | 43 | NYA |
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