| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eddie Plank | OAK | 3.73 | 191304250_NYA_OAK |
| Pete Alexander | PHI | 2.25 | 191304250_PHI_SFN |
| Babe Adams | PIT | 1.6 | 191304260_CHN_PIT |
| Jim Scott | CHA | 1.37 | 191304270_BAL_CHA |
| Lew Richie | CHN | 1.04 | 191304250_CHN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Tyler | ATL | -6.23 | 191304250_LAN_ATL |
| Chief Johnson | CIN | -0.92 | 191304270_CIN_SLN |
| Boardwalk Brown | OAK | -0.84 | 191304260_MIN_OAK |
| Bob Harmon | SLN | -0.84 | 191304260_CIN_SLN |
| Earl Hamilton | BAL | -0.53 | 191304270_BAL_CHA |
Based on accumulated WAA for this season up to 1913-04-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 1.71 | Walter Johnson | 28 | MIN |
| +002+ | 1.46 | Jim Scott | 33 | CHA |
| +003+ | 1.46 | Cy Falkenberg | 27 | CLE |
| +004+ | 1.45 | Vean Gregg | 36 | CLE |
| +005+ | 1.36 | Ray Keating | 25 | NYA |
| +008+ | 1.26 | George Mullin | 36 | DET |
| +009+ | 1.26 | Jean Dubuc | 27 | DET |
| XXXXX | 1.22 | Nap Rucker | 28 | LAN |
| XXXXX | 1.18 | Eddie Cicotte | 26 | CHA |
| XXXXX | 1.05 | Reb Russell | 21 | CHA |
| XXXXX | 1.03 | Tom Seaton | 40 | PHI |
| XXXXX | 0.84 | Frank Allen | 28.7 | LAN |
| XXXXX | 0.81 | Eddie Plank | 24.3 | OAK |
| XXXXX | 0.78 | Dwight Stone | 23.3 | BAL |
| XXXXX | 0.73 | Earl Hamilton | 25.7 | BAL |
| XXXXX | 0.7 | Doc White | 16 | CHA |
| XXXXX | 0.63 | Fred Blanding | 9 | CLE |
| XXXXX | 0.62 | Bill Steele | 9 | SLN |
| XXXXX | 0.61 | Dutch Leonard | 29.3 | BOS |
| XXXXX | 0.6 | Al Demaree | 19 | SFN |
| XXXXX | 0.59 | Eddie Stack | 9 | LAN |
| XXXXX | 0.57 | Pete Alexander | 11 | PHI |
| XXXXX | 0.55 | Red Ames | 26 | SFN |
| XXXXX | 0.53 | Carl Weilman | 35 | BAL |
| XXXXX | 0.49 | Marc Hall | 19 | DET |
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