| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry Gaspar | CIN | -2.55 | 190905311_CHN_CIN |
| Charlie Rhodes | SLN | -2.5 | 190905312_SLN_PIT |
| Charlie Smith | MIN | -2.15 | 190906011_NYA_MIN |
| Bill Dinneen | BAL | -0.98 | 190905312_BAL_CLE |
| Al Mattern | ATL | -0.98 | 190905311_LAN_ATL |
Based on accumulated WAA for this season up to 1909-06-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.56 | Mordecai Brown | 98.7 | CHN |
| +002+ | 3.28 | Bugs Raymond | 80 | SFN |
| +003+ | 3.01 | Orval Overall | 94.3 | CHN |
| +004+ | 2.86 | Howie Camnitz | 84.3 | PIT |
| +005+ | 2.82 | Harry Krause | 46 | OAK |
| +007+ | 2.55 | Jack Coombs | 74.3 | OAK |
| +008+ | 2.35 | Rube Waddell | 84.7 | BAL |
| +009+ | 2.33 | George Mullin | 82 | DET |
| +010+ | 2.28 | Bill Grahame | 68 | BAL |
| +011+ | 2.27 | Chief Bender | 52.3 | OAK |
| +014+ | 1.93 | Doc White | 75 | CHA |
| +015+ | 1.86 | Jack Warhop | 54.7 | NYA |
| +016+ | 1.79 | Hooks Wiltse | 48.3 | SFN |
| +018+ | 1.71 | Eddie Plank | 77 | OAK |
| +022+ | 1.55 | Christy Mathewson | 48 | SFN |
| +023+ | 1.51 | Jack Powell | 84.7 | BAL |
| +024+ | 1.37 | Barney Pelty | 46 | BAL |
| +026+ | 1.33 | Billy Campbell | 57.7 | CIN |
| +027+ | 1.3 | Lew Moren | 71.3 | PHI |
| +028+ | 1.27 | Tully Sparks | 33 | PHI |
| XXXXX | 1.18 | Babe Adams | 31 | PIT |
| XXXXX | 1.06 | Rube Manning | 29 | NYA |
| XXXXX | 1.06 | Rube Marquard | 52.3 | SFN |
| XXXXX | 1.03 | Eddie Cicotte | 41 | BOS |
| XXXXX | 1.02 | Rip Hagerman | 39.7 | CHN |
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