| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mordecai Brown | CHN | 3.68 | 190605280_ATL_CHN |
| Christy Mathewson | SFN | 2.95 | 190605302_SFN_LAN |
| Eddie Plank | OAK | 2.71 | 190605290_OAK_BOS |
| Doc White | CHA | 2.49 | 190605300_CHA_DET |
| Tully Sparks | PHI | 0.91 | 190605301_ATL_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry McIntire | LAN | -3.34 | 190605301_SFN_LAN |
| Orval Overall | CIN | -2.84 | 190605301_CIN_PIT |
| Bill Dinneen | BOS | -2.6 | 190605301_OAK_BOS |
| Big Jeff Pfeffer | ATL | -1.53 | 190605301_ATL_PHI |
| Barney Pelty | BAL | -0.72 | 190605301_BAL_CLE |
Based on accumulated WAA for this season up to 1906-05-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.2 | Rube Waddell | 76.3 | OAK |
| +003+ | 3.46 | Tully Sparks | 72 | PHI |
| +004+ | 3.38 | Bill Duggleby | 82.3 | PHI |
| +005+ | 2.83 | Carl Lundgren | 93.3 | CHN |
| +006+ | 2.58 | Jack Pfiester | 79 | CHN |
| +007+ | 2.48 | Jack Taylor | 86 | SLN |
| +008+ | 2.35 | Buster Brown | 89.3 | SLN |
| +011+ | 2.07 | Vive Lindaman | 79.3 | ATL |
| +012+ | 2.04 | Joe McGinnity | 98.3 | SFN |
| +014+ | 1.99 | Mordecai Brown | 61 | CHN |
| +015+ | 1.95 | Sam Leever | 46 | PIT |
| +017+ | 1.83 | Johnny Lush | 97 | PHI |
| +018+ | 1.71 | Nick Altrock | 72.7 | CHA |
| +019+ | 1.66 | Ed Smith | 59.7 | BAL |
| +020+ | 1.65 | Vic Willis | 95 | PIT |
| +021+ | 1.64 | Bill Donovan | 61 | DET |
| +023+ | 1.6 | Togie Pittinger | 54.7 | PHI |
| +025+ | 1.58 | Harry Eells | 35 | CLE |
| +026+ | 1.56 | Jake Weimer | 96.3 | CIN |
| +029+ | 1.4 | Addie Joss | 78.7 | CLE |
| XXXXX | 1.25 | Deacon Phillippe | 77 | PIT |
| XXXXX | 1.19 | Elmer Stricklett | 73 | LAN |
| XXXXX | 1 | Eddie Plank | 69 | OAK |
| XXXXX | 1 | Irv Young | 109.3 | ATL |
| XXXXX | 0.94 | Chick Fraser | 36 | CIN |
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