| Starter | Tm | Tier | Game |
|---|---|---|---|
| Christy Mathewson | SFN | 5.43 | 191305160_PIT_SFN |
| Eddie Plank | OAK | 5.29 | 191305150_OAK_CLE |
| Vean Gregg | CLE | 5.05 | 191305160_OAK_CLE |
| Pete Alexander | PHI | 4.31 | 191305150_CHN_PHI |
| Smoky Joe Wood | BOS | 2.07 | 191305150_BOS_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Otto Hess | ATL | -2.87 | 191305150_CIN_ATL |
| Bill Steele | SLN | -2.18 | 191305150_SLN_LAN |
| Al Schulz | NYA | -1.31 | 191305150_NYA_CHA |
| Fred Toney | CHN | -1.16 | 191305160_CHN_PHI |
| George Kahler | CLE | -0.6 | 191305170_OAK_CLE |
Based on accumulated WAA for this season up to 1913-05-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.8 | Walter Johnson | 59.7 | MIN |
| +002+ | 2.96 | Cy Falkenberg | 63 | CLE |
| +004+ | 2.71 | Ray Keating | 52.3 | NYA |
| +005+ | 2.68 | Jim Scott | 60 | CHA |
| +006+ | 2.47 | Nap Rucker | 71 | LAN |
| +007+ | 1.86 | Joe Benz | 42 | CHA |
| +014+ | 1.56 | Larry Cheney | 69.7 | CHN |
| +017+ | 1.44 | Eddie Cicotte | 39 | CHA |
| +018+ | 1.4 | Bill Steen | 52.3 | CLE |
| +021+ | 1.33 | Pete Alexander | 45.7 | PHI |
| +022+ | 1.33 | Bill James | 60.3 | ATL |
| +023+ | 1.31 | Eddie Plank | 54.3 | OAK |
| +024+ | 1.28 | Reb Russell | 61 | CHA |
| +025+ | 1.27 | Vean Gregg | 72.3 | CLE |
| XXXXX | 1.25 | Christy Mathewson | 66 | SFN |
| XXXXX | 1.25 | Jean Dubuc | 64 | DET |
| XXXXX | 1.06 | Cliff Curtis | 40.7 | LAN |
| XXXXX | 1.04 | Tom Seaton | 68.3 | PHI |
| XXXXX | 0.99 | Lefty Tyler | 61.7 | ATL |
| XXXXX | 0.84 | Joe Engel | 26.7 | MIN |
| XXXXX | 0.82 | George Baumgardner | 56.7 | BAL |
| XXXXX | 0.79 | Earl Hamilton | 59.3 | BAL |
| XXXXX | 0.67 | Fred Blanding | 32 | CLE |
| XXXXX | 0.65 | Hugh Bedient | 56.3 | BOS |
| XXXXX | 0.63 | Eddie Stack | 25 | LAN |
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