| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nap Rucker | LAN | 5.68 | 191305120_CIN_LAN |
| Vean Gregg | CLE | 5.54 | 191305120_NYA_CLE |
| Christy Mathewson | SFN | 4.8 | 191305120_CHN_SFN |
| Ed Walsh | CHA | 3.07 | 191305110_OAK_CHA |
| Babe Adams | PIT | 1.25 | 191305120_PIT_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hub Perdue | ATL | -2.63 | 191305130_SLN_ATL |
| Roy Mitchell | BAL | -1.46 | 191305120_MIN_BAL |
| Fred Toney | CHN | -0.97 | 191305130_CHN_SFN |
| Dan Griner | SLN | -0.74 | 191305130_SLN_ATL |
| Al Schulz | NYA | -0.71 | 191305110_NYA_CLE |
Based on accumulated WAA for this season up to 1913-05-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.46 | Walter Johnson | 53.7 | MIN |
| +004+ | 2.46 | Cy Falkenberg | 54 | CLE |
| +005+ | 2.2 | Nap Rucker | 69.3 | LAN |
| +006+ | 2.16 | Jim Scott | 51 | CHA |
| +007+ | 2.03 | Vean Gregg | 66 | CLE |
| +011+ | 1.73 | Larry Cheney | 68.7 | CHN |
| +012+ | 1.72 | Pete Alexander | 40 | PHI |
| +014+ | 1.56 | Christy Mathewson | 57 | SFN |
| +015+ | 1.45 | Eddie Plank | 52.3 | OAK |
| +016+ | 1.43 | Cliff Curtis | 31.7 | LAN |
| +018+ | 1.36 | Eddie Cicotte | 39 | CHA |
| XXXXX | 1.17 | Joe Benz | 33 | CHA |
| XXXXX | 1.04 | Bill James | 51.3 | ATL |
| XXXXX | 0.92 | Al Demaree | 36 | SFN |
| XXXXX | 0.89 | Bill Steen | 37.3 | CLE |
| XXXXX | 0.81 | Tom Seaton | 67.3 | PHI |
| XXXXX | 0.8 | Pat Ragan | 51 | LAN |
| XXXXX | 0.78 | Joe Engel | 26.7 | MIN |
| XXXXX | 0.76 | Reb Russell | 52 | CHA |
| XXXXX | 0.73 | Fred Blanding | 32 | CLE |
| XXXXX | 0.72 | Jean Dubuc | 55 | DET |
| XXXXX | 0.72 | George Baumgardner | 47.7 | BAL |
| XXXXX | 0.66 | Carl Weilman | 53 | BAL |
| XXXXX | 0.66 | Eddie Stack | 23 | LAN |
| XXXXX | 0.66 | Bill Steele | 33.3 | SLN |
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