| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 9.7 | 191305262_MIN_OAK |
| Eddie Plank | OAK | 5.29 | 191305271_MIN_OAK |
| Christy Mathewson | SFN | 4.13 | 191305271_SFN_ATL |
| Babe Adams | PIT | 1.27 | 191305250_PIT_CIN |
| Slim Sallee | SLN | 0.18 | 191305270_SLN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Tyler | ATL | -2.88 | 191305271_SFN_ATL |
| Bill Steele | SLN | -2.35 | 191305250_SLN_CHN |
| Orval Overall | CHN | -0.99 | 191305270_SLN_CHN |
| Byron Houck | OAK | -0.84 | 191305261_MIN_OAK |
| Walt Leverenz | BAL | -0.83 | 191305251_DET_BAL |
Based on accumulated WAA for this season up to 1913-05-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.64 | Walter Johnson | 85 | MIN |
| +003+ | 3.23 | Cy Falkenberg | 79 | CLE |
| +005+ | 2.58 | Eddie Plank | 72.3 | OAK |
| +007+ | 2.56 | Nap Rucker | 71.7 | LAN |
| +008+ | 2.48 | Pete Alexander | 66.3 | PHI |
| +009+ | 2.3 | Ray Keating | 53.3 | NYA |
| +011+ | 2.22 | Bill Steen | 70.3 | CLE |
| +013+ | 2.15 | Jim Scott | 67 | CHA |
| +014+ | 2.1 | Larry Cheney | 79.7 | CHN |
| +016+ | 1.87 | Ad Brennan | 50 | PHI |
| +018+ | 1.67 | Eddie Cicotte | 42 | CHA |
| +019+ | 1.59 | Reb Russell | 77 | CHA |
| +020+ | 1.59 | Christy Mathewson | 80.7 | SFN |
| +025+ | 1.42 | Cliff Curtis | 45.7 | LAN |
| +027+ | 1.3 | Tom Seaton | 84.3 | PHI |
| +029+ | 1.25 | Vean Gregg | 74.7 | CLE |
| XXXXX | 1.23 | Bill James | 64.3 | ATL |
| XXXXX | 1.14 | Bob Harmon | 54.3 | SLN |
| XXXXX | 0.92 | Babe Adams | 75 | PIT |
| XXXXX | 0.89 | Dwight Stone | 48.7 | BAL |
| XXXXX | 0.87 | Frank Allen | 65.3 | LAN |
| XXXXX | 0.87 | Earl Hamilton | 75.3 | BAL |
| XXXXX | 0.86 | Jean Dubuc | 67 | DET |
| XXXXX | 0.83 | Lefty Tyler | 77.7 | ATL |
| XXXXX | 0.8 | Roy Mitchell | 65.3 | BAL |
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