| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Tyler | ATL | -3.31 | 191305140_SLN_ATL |
| Ray Fisher | NYA | -2.41 | 191305140_NYA_CLE |
| Bill Steele | SLN | -2.18 | 191305150_SLN_LAN |
| Fred Toney | CHN | -0.97 | 191305130_CHN_SFN |
| Earl Hamilton | BAL | -0.68 | 191305130_MIN_BAL |
Based on accumulated WAA for this season up to 1913-05-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.77 | Walter Johnson | 59.7 | MIN |
| +002+ | 2.92 | Cy Falkenberg | 63 | CLE |
| +003+ | 2.66 | Jim Scott | 60 | CHA |
| +005+ | 2.44 | Nap Rucker | 71 | LAN |
| +007+ | 1.86 | Vean Gregg | 66 | CLE |
| +011+ | 1.68 | Christy Mathewson | 57 | SFN |
| +015+ | 1.52 | Larry Cheney | 69.7 | CHN |
| +016+ | 1.49 | Cliff Curtis | 31.7 | LAN |
| +018+ | 1.43 | Eddie Cicotte | 39 | CHA |
| +019+ | 1.38 | Bill Steen | 52.3 | CLE |
| +023+ | 1.3 | Pete Alexander | 45.7 | PHI |
| +024+ | 1.27 | Eddie Plank | 54.3 | OAK |
| XXXXX | 1.22 | Joe Benz | 33 | CHA |
| XXXXX | 1.14 | Bill James | 51.3 | ATL |
| XXXXX | 1 | Tom Seaton | 68.3 | PHI |
| XXXXX | 0.96 | Lefty Tyler | 61.7 | ATL |
| XXXXX | 0.85 | Reb Russell | 52 | CHA |
| XXXXX | 0.82 | Joe Engel | 26.7 | MIN |
| XXXXX | 0.82 | Jean Dubuc | 55 | DET |
| XXXXX | 0.8 | George Baumgardner | 47.7 | BAL |
| XXXXX | 0.7 | Al Demaree | 38 | SFN |
| XXXXX | 0.65 | Fred Blanding | 32 | CLE |
| XXXXX | 0.62 | Hugh Bedient | 56.3 | BOS |
| XXXXX | 0.62 | Eddie Stack | 25 | LAN |
| XXXXX | 0.53 | Red Ames | 38.7 | SFN |
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