| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 7.24 | 190306270_OAK_DET |
| Cy Young | BOS | 5.8 | 190306281_BOS_BAL |
| Bill Donovan | DET | 3.71 | 190306270_OAK_DET |
| Sam Leever | PIT | 3.1 | 190306260_PIT_SFN |
| Doc White | CHA | 3.06 | 190306282_NYA_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Poole | CIN | -2.11 | 190306270_CIN_LAN |
| Chick Fraser | PHI | -1.62 | 190306270_SLN_PHI |
| Togie Pittinger | ATL | -1.54 | 190306272_CHN_ATL |
| Bob Rhoads | SLN | -0.65 | 190306270_SLN_PHI |
| Ned Garvin | LAN | -0.61 | 190306270_CIN_LAN |
Based on accumulated WAA for this season up to 1903-06-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.37 | Rube Waddell | 177.3 | OAK |
| +002+ | 6.71 | Cy Young | 147.7 | BOS |
| +003+ | 6.16 | Addie Joss | 137.3 | CLE |
| +004+ | 5.43 | Earl Moore | 108 | CLE |
| +005+ | 5.42 | Bill Donovan | 113.7 | DET |
| +006+ | 5.1 | Doc White | 125.3 | CHA |
| +007+ | 5.08 | George Mullin | 126 | DET |
| +008+ | 5.05 | Eddie Plank | 126 | OAK |
| +009+ | 4.61 | Jack Chesbro | 140.3 | NYA |
| +010+ | 4.29 | Bill Dinneen | 125.7 | BOS |
| +011+ | 3.84 | Sam Leever | 113 | PIT |
| +012+ | 3.69 | Roy Patterson | 109 | CHA |
| +013+ | 3.54 | Willie Sudhoff | 104 | BAL |
| +014+ | 3.43 | Chief Bender | 131.3 | OAK |
| +016+ | 3.25 | Joe McGinnity | 185.7 | SFN |
| +017+ | 3.18 | Tom Hughes | 92.7 | BOS |
| +021+ | 2.86 | Red Donahue | 122 | BAL |
| +023+ | 2.79 | Bill Bernhard | 116 | CLE |
| +027+ | 2.48 | Ed Siever | 76 | BAL |
| +029+ | 2.26 | John Deering | 49.7 | DET |
| +031+ | 2.22 | Christy Mathewson | 152 | SFN |
| +035+ | 2.1 | Jesse Tannehill | 114.3 | NYA |
| +038+ | 1.96 | Barney Wolfe | 60.3 | NYA |
| +044+ | 1.64 | Jack Sutthoff | 108.7 | CIN |
| +048+ | 1.56 | Happy Townsend | 81.3 | MIN |
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