| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mordecai Brown | CHN | 5.76 | 190908310_CHN_SFN |
| Cy Morgan | OAK | 2.89 | 190908310_OAK_CHA |
| Vic Willis | PIT | 2.53 | 190908310_PIT_ATL |
| Ed Walsh | CHA | 2.15 | 190909010_OAK_CHA |
| Nap Rucker | LAN | 0.99 | 190909020_CHN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Beebe | SLN | -3.9 | 190908310_SLN_PHI |
| Forrest More | ATL | -3.19 | 190908310_PIT_ATL |
| Roy Witherup | MIN | -1.42 | 190908310_MIN_BAL |
| Doc Scanlan | LAN | -0.52 | 190908310_CIN_LAN |
| Kid Speer | DET | -0.39 | 190909010_BOS_DET |
Based on accumulated WAA for this season up to 1909-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.95 | Mordecai Brown | 279.7 | CHN |
| +004+ | 7.5 | Christy Mathewson | 219 | SFN |
| +005+ | 6.83 | Cy Morgan | 233 | TOT |
| +006+ | 6.57 | Harry Krause | 168 | OAK |
| +007+ | 6.34 | Vic Willis | 256.7 | PIT |
| +008+ | 6.12 | Orval Overall | 220.7 | CHN |
| +010+ | 5.68 | Frank Smith | 330 | CHA |
| +011+ | 5.63 | Addie Joss | 203.7 | CLE |
| +012+ | 5.3 | Ed Walsh | 175 | CHA |
| +014+ | 5.25 | Howie Camnitz | 243 | PIT |
| +017+ | 5.03 | Frank Arellanes | 218.7 | BOS |
| +020+ | 4.58 | Nap Rucker | 253 | LAN |
| +021+ | 4.57 | Ed Reulbach | 204 | CHN |
| +023+ | 4.37 | George Mullin | 243.7 | DET |
| +024+ | 4.36 | Eddie Plank | 205.3 | OAK |
| +025+ | 4.35 | Chief Bender | 189.7 | OAK |
| +027+ | 4.14 | Barney Pelty | 174.3 | BAL |
| +029+ | 3.87 | Doc White | 151.3 | CHA |
| +032+ | 3.66 | Smoky Joe Wood | 124.7 | BOS |
| +035+ | 3.46 | Jack Coombs | 181.3 | OAK |
| +036+ | 3.24 | Babe Adams | 83 | PIT |
| +037+ | 3.22 | Art Fromme | 212.3 | CIN |
| +038+ | 3.21 | Ed Summers | 229 | DET |
| +039+ | 3.15 | Rube Kroh | 102.3 | CHN |
| +040+ | 2.98 | Jack Rowan | 173.3 | CIN |
_