| 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 | -1.16 | 191305160_CHN_PHI |
| Ed Willett | DET | -0.48 | 191305140_BOS_DET |
Based on accumulated WAA for this season up to 1913-05-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.83 | Walter Johnson | 59.7 | MIN |
| +002+ | 2.98 | Cy Falkenberg | 63 | CLE |
| +004+ | 2.71 | Jim Scott | 60 | CHA |
| +005+ | 2.5 | Nap Rucker | 71 | LAN |
| +007+ | 1.87 | Joe Benz | 42 | CHA |
| +012+ | 1.59 | Larry Cheney | 69.7 | CHN |
| +018+ | 1.46 | Eddie Cicotte | 39 | CHA |
| +017+ | 1.46 | Christy Mathewson | 66 | SFN |
| +019+ | 1.42 | Bill Steen | 52.3 | CLE |
| +020+ | 1.35 | Pete Alexander | 45.7 | PHI |
| +023+ | 1.31 | Eddie Plank | 54.3 | OAK |
| +024+ | 1.29 | Vean Gregg | 72.3 | CLE |
| +025+ | 1.27 | Jean Dubuc | 64 | DET |
| XXXXX | 1.18 | Bill James | 51.3 | ATL |
| XXXXX | 1.08 | Cliff Curtis | 40.7 | LAN |
| XXXXX | 1.07 | Tom Seaton | 68.3 | PHI |
| XXXXX | 1 | Lefty Tyler | 61.7 | ATL |
| XXXXX | 0.89 | Reb Russell | 52 | CHA |
| XXXXX | 0.85 | Joe Engel | 26.7 | MIN |
| XXXXX | 0.84 | George Baumgardner | 56.7 | BAL |
| XXXXX | 0.73 | Al Demaree | 38 | SFN |
| XXXXX | 0.68 | Fred Blanding | 32 | CLE |
| XXXXX | 0.66 | Hugh Bedient | 56.3 | BOS |
| XXXXX | 0.64 | Eddie Stack | 25 | LAN |
| XXXXX | 0.56 | Red Ames | 38.7 | SFN |
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