| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mordecai Brown | CHN | 7.66 | 190707290_LAN_CHN |
| Ed Walsh | CHA | 5.91 | 190707310_CHA_MIN |
| Cy Young | BOS | 2.73 | 190707300_CLE_BOS |
| Christy Mathewson | SFN | 2.25 | 190707290_SFN_SLN |
| Addie Joss | CLE | 2.16 | 190707310_CLE_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Casey Patten | MIN | -3.63 | 190707301_CHA_MIN |
| Bill Duggleby? | PIT | -1.68 | 190707290_ATL_PIT |
| Irv Young | ATL | -1.51 | 190707311_ATL_PIT |
| George Mullin | DET | -1.37 | 190707310_DET_NYA |
| Jack Powell | BAL | -1.06 | 190707300_BAL_OAK |
Based on accumulated WAA for this season up to 1907-07-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.5 | Mordecai Brown | 173.7 | CHN |
| +002+ | 7.36 | Ed Walsh | 259.3 | CHA |
| +003+ | 5.81 | Cy Young | 216.3 | BOS |
| +004+ | 5.58 | Carl Lundgren | 129.7 | CHN |
| +006+ | 5.32 | Addie Joss | 210.7 | CLE |
| +008+ | 4.44 | Christy Mathewson | 170.7 | SFN |
| +010+ | 4.25 | Ed Killian | 182.3 | DET |
| +012+ | 4.1 | Bob Ewing | 202 | CIN |
| +015+ | 3.81 | Orval Overall | 159.3 | CHN |
| +016+ | 3.74 | Frank Smith | 182 | CHA |
| +017+ | 3.7 | Jim Pastorius | 121 | LAN |
| +018+ | 3.67 | Glenn Liebhardt | 180.3 | CLE |
| +020+ | 3.38 | Andy Coakley | 147.7 | CIN |
| +021+ | 3.05 | Ed Siever | 144.7 | DET |
| +022+ | 3.02 | Ed Reulbach | 108.7 | CHN |
| +023+ | 2.89 | Tex Pruiett | 109.3 | BOS |
| +030+ | 2.24 | Patsy Flaherty | 124.7 | ATL |
| +031+ | 2.22 | Howie Camnitz | 81.7 | PIT |
| +033+ | 2.04 | Tully Sparks | 132 | PHI |
| +038+ | 1.88 | Nick Altrock | 137.3 | CHA |
| +039+ | 1.88 | Lefty Leifield | 188 | PIT |
| +043+ | 1.73 | Bill Donovan | 118.3 | DET |
| +047+ | 1.65 | Hooks Wiltse | 129.3 | SFN |
| +049+ | 1.63 | Jack Pfiester | 102 | CHN |
| +053+ | 1.59 | Nap Rucker | 165 | LAN |
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