| Starter | Tm | Tier | Game |
|---|---|---|---|
| Christy Mathewson | SFN | 3.35 | 190306222_CHN_SFN |
| Doc White | CHA | 3.22 | 190306200_OAK_CHA |
| Eddie Plank | OAK | 2.6 | 190306210_OAK_CHA |
| Jack Taylor | CHN | 1.37 | 190306221_CHN_SFN |
| Deacon Phillippe | PIT | 1.36 | 190306200_PIT_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Evans | LAN | -3.86 | 190306222_SLN_LAN |
| Wiley Piatt | ATL | -2.84 | 190306200_PIT_ATL |
| Ed Poole | CIN | -1.89 | 190306222_CIN_PHI |
| Chick Fraser | PHI | -1.34 | 190306222_CIN_PHI |
| Norwood Gibson | BOS | -0.47 | 190306200_BOS_CLE |
Based on accumulated WAA for this season up to 1903-06-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.2 | Rube Waddell | 161.3 | OAK |
| +002+ | 5.69 | Addie Joss | 117.3 | CLE |
| +003+ | 5.32 | Cy Young | 129.7 | BOS |
| +004+ | 4.94 | George Mullin | 119 | DET |
| +005+ | 4.85 | Earl Moore | 99 | CLE |
| +006+ | 4.67 | Sam Leever | 108 | PIT |
| +007+ | 4.57 | Jack Chesbro | 122.7 | NYA |
| +008+ | 4.52 | Eddie Plank | 116 | OAK |
| +009+ | 4.44 | Doc White | 106 | CHA |
| +010+ | 4.42 | Bill Donovan | 95.7 | DET |
| +011+ | 4 | Bill Dinneen | 117.7 | BOS |
| +012+ | 3.97 | Willie Sudhoff | 95 | BAL |
| +013+ | 3.77 | Chief Bender | 119.3 | OAK |
| +014+ | 3.72 | Joe McGinnity | 165.7 | SFN |
| +018+ | 3.01 | Roy Patterson | 90.3 | CHA |
| +023+ | 2.68 | Jack Sutthoff | 102 | CIN |
| +024+ | 2.52 | Tom Hughes | 83.7 | BOS |
| +026+ | 2.31 | Ed Siever | 68 | BAL |
| +029+ | 2.14 | Christy Mathewson | 143 | SFN |
| +033+ | 2.08 | Red Donahue | 104 | BAL |
| +036+ | 1.82 | Bill Bernhard | 98 | CLE |
| +037+ | 1.78 | Happy Townsend | 73.3 | MIN |
| +038+ | 1.78 | Jack Taylor | 152 | CHN |
| +040+ | 1.74 | John Deering | 40.7 | DET |
| +041+ | 1.72 | Barney Wolfe | 43 | NYA |
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