| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mordecai Brown | CHN | 4.14 | 190605310_CHN_CIN |
| Joe McGinnity | SFN | 2.98 | 190605310_SFN_PHI |
| Eddie Plank | OAK | 2.71 | 190605290_OAK_BOS |
| Doc White | CHA | 2.49 | 190605300_CHA_DET |
| Sam Leever | PIT | 1.62 | 190605310_SLN_PIT |
| 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 |
| Cy Falkenberg | MIN | -1.19 | 190605310_MIN_BOS |
Based on accumulated WAA for this season up to 1906-05-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.2 | Rube Waddell | 76.3 | OAK |
| +003+ | 3.45 | Tully Sparks | 72 | PHI |
| +004+ | 3.38 | Bill Duggleby | 82.3 | PHI |
| +005+ | 2.81 | Carl Lundgren | 93.3 | CHN |
| +006+ | 2.77 | Sam Leever | 55 | PIT |
| +007+ | 2.56 | Jack Pfiester | 79 | CHN |
| +008+ | 2.49 | Jack Taylor | 86 | SLN |
| +009+ | 2.36 | Buster Brown | 89.3 | SLN |
| +013+ | 2.16 | Mordecai Brown | 70 | CHN |
| +014+ | 2.15 | Togie Pittinger | 62.7 | PHI |
| +016+ | 2.06 | Vive Lindaman | 79.3 | ATL |
| +017+ | 2.01 | Ed Smith | 70.7 | BAL |
| +019+ | 1.83 | Johnny Lush | 97 | PHI |
| +020+ | 1.75 | Joe McGinnity | 106.3 | SFN |
| +022+ | 1.63 | Bill Donovan | 61 | DET |
| +023+ | 1.63 | Vic Willis | 95 | PIT |
| +024+ | 1.56 | Harry Eells | 35 | CLE |
| +025+ | 1.55 | Jake Weimer | 96.3 | CIN |
| +030+ | 1.35 | Addie Joss | 78.7 | CLE |
| +032+ | 1.29 | Nick Altrock | 74.7 | CHA |
| XXXXX | 1.23 | Deacon Phillippe | 77 | PIT |
| XXXXX | 1.18 | Otto Hess | 86.3 | CLE |
| XXXXX | 1.16 | Elmer Stricklett | 73 | LAN |
| XXXXX | 1 | Eddie Plank | 69 | OAK |
| XXXXX | 0.99 | Irv Young | 109.3 | ATL |
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