| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Reulbach | CHN | 3.7 | 190609190_CHN_ATL |
| Vic Willis | PIT | 3.43 | 190609210_PIT_ATL |
| Tully Sparks | PHI | 2.96 | 190609210_CIN_PHI |
| Addie Joss | CLE | 1.78 | 190609202_BOS_CLE |
| Ed Walsh | CHA | 1.3 | 190609211_NYA_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Gus Dorner | ATL | -4.44 | 190609210_PIT_ATL |
| George Winter | BOS | -4.25 | 190609211_BOS_CLE |
| Jim Pastorius | LAN | -3.28 | 190609210_SLN_LAN |
| Gus Thompson | SLN | -1.97 | 190609210_SLN_LAN |
| Bob Wicker | CIN | -1.47 | 190609210_CIN_PHI |
Based on accumulated WAA for this season up to 1906-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.41 | Mordecai Brown | 273.3 | CHN |
| +003+ | 7.78 | Ed Reulbach | 194.3 | CHN |
| +007+ | 6.83 | Tully Sparks | 290.3 | PHI |
| +008+ | 6.67 | Vic Willis | 296 | PIT |
| +009+ | 6.65 | Jack Pfiester | 223.7 | CHN |
| +010+ | 6.12 | Jack Taylor | 301.7 | TOT |
| +012+ | 5.63 | Addie Joss | 256 | CLE |
| +015+ | 5.05 | Bob Rhoads | 282 | CLE |
| +016+ | 4.88 | Bill Duggleby | 275 | PHI |
| +017+ | 4.85 | Sam Leever | 247.3 | PIT |
| +018+ | 4.72 | Barney Pelty | 236.7 | BAL |
| +021+ | 4.49 | Otto Hess | 305.7 | CLE |
| +022+ | 4.28 | Al Orth | 311 | NYA |
| +025+ | 4.05 | Ed Walsh | 250.7 | CHA |
| +026+ | 3.94 | Bob Ewing | 258 | CIN |
| +028+ | 3.92 | Fred Glade | 239.7 | BAL |
| +029+ | 3.83 | Rube Waddell | 255.7 | OAK |
| +033+ | 3.58 | Deacon Phillippe | 212.7 | PIT |
| +035+ | 3.29 | Christy Mathewson | 240.7 | SFN |
| +036+ | 3.14 | Jack Powell | 218 | BAL |
| +041+ | 2.9 | Eddie Plank | 211.7 | OAK |
| +042+ | 2.89 | Lefty Leifield | 224.3 | PIT |
| +051+ | 2.45 | Roy Patterson | 141.7 | CHA |
| +053+ | 2.37 | Nick Altrock | 255.7 | CHA |
| +057+ | 2.16 | Hooks Wiltse | 230 | SFN |
_