| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eddie Plank | OAK | 5.16 | 191305050_OAK_NYA |
| Pete Alexander | PHI | 3.83 | 191305050_SFN_PHI |
| Rube Marquard | SFN | 3.19 | 191305050_SFN_PHI |
| Buck O'Brien | BOS | 0.72 | 191305050_MIN_BOS |
| Larry Cheney | CHN | 0.72 | 191305060_CHN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Tyler | ATL | -5.9 | 191305070_PIT_ATL |
| Bill Steele | SLN | -2.65 | 191305060_SLN_PHI |
| Ray Fisher | NYA | -1.52 | 191305050_OAK_NYA |
| Roy Mitchell | BAL | -1.47 | 191305070_OAK_BAL |
| Fred Toney | CHN | -1.16 | 191305070_CHN_LAN |
Based on accumulated WAA for this season up to 1913-05-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.79 | Walter Johnson | 44.7 | MIN |
| +002+ | 2.53 | Ray Keating | 45.3 | NYA |
| +003+ | 2.29 | Cy Falkenberg | 45 | CLE |
| +004+ | 1.77 | Jim Scott | 42 | CHA |
| +008+ | 1.66 | Vean Gregg | 48 | CLE |
| +010+ | 1.45 | Pete Alexander | 29 | PHI |
| +011+ | 1.43 | Nap Rucker | 51.3 | LAN |
| +012+ | 1.39 | Eddie Plank | 42.3 | OAK |
| +013+ | 1.36 | Eddie Cicotte | 39 | CHA |
| XXXXX | 1.14 | Jean Dubuc | 45 | DET |
| XXXXX | 1.05 | Larry Cheney | 59.7 | CHN |
| XXXXX | 1.04 | Bill James | 42.3 | ATL |
| XXXXX | 0.97 | Ad Brennan | 28 | PHI |
| XXXXX | 0.95 | Cliff Curtis | 18 | LAN |
| XXXXX | 0.94 | Christy Mathewson | 48 | SFN |
| XXXXX | 0.92 | Dwight Stone | 28.7 | BAL |
| XXXXX | 0.92 | Eddie Stack | 20.7 | LAN |
| XXXXX | 0.88 | Reb Russell | 35 | CHA |
| XXXXX | 0.86 | Joe Engel | 19 | MIN |
| XXXXX | 0.84 | Tom Seaton | 58.7 | PHI |
| XXXXX | 0.83 | Fred Blanding | 18 | CLE |
| XXXXX | 0.76 | George Baumgardner | 38.7 | BAL |
| XXXXX | 0.71 | Bill Steele | 26.3 | SLN |
| XXXXX | 0.65 | Bob Harmon | 22.3 | SLN |
| XXXXX | 0.63 | Joe Benz | 25 | CHA |
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