| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Alexander | PHI | 4.26 | 191305240_PHI_LAN |
| Ed Walsh | CHA | 2.63 | 191305240_CLE_CHA |
| Smoky Joe Wood | BOS | 2.61 | 191305240_BOS_NYA |
| Babe Adams | PIT | 1.27 | 191305250_PIT_CIN |
| Larry Cheney | CHN | 0.99 | 191305240_CHN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Steele | SLN | -2.35 | 191305250_SLN_CHN |
| Chief Johnson | CIN | -1.29 | 191305241_SLN_CIN |
| Walt Leverenz | BAL | -0.83 | 191305251_DET_BAL |
| Boardwalk Brown | OAK | -0.55 | 191305240_MIN_OAK |
| George Pierce | CHN | -0.46 | 191305250_SLN_CHN |
Based on accumulated WAA for this season up to 1913-05-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.15 | Walter Johnson | 78 | MIN |
| +003+ | 3.28 | Cy Falkenberg | 79 | CLE |
| +005+ | 2.64 | Nap Rucker | 71.7 | LAN |
| +006+ | 2.57 | Pete Alexander | 63.7 | PHI |
| +007+ | 2.33 | Ray Keating | 53.3 | NYA |
| +008+ | 2.27 | Bill Steen | 70.3 | CLE |
| +011+ | 2.2 | Jim Scott | 67 | CHA |
| +012+ | 2.15 | Larry Cheney | 79.7 | CHN |
| +014+ | 2 | Eddie Plank | 63.3 | OAK |
| +015+ | 1.91 | Ad Brennan | 50 | PHI |
| +018+ | 1.76 | Tom Seaton | 77.3 | PHI |
| +019+ | 1.7 | Eddie Cicotte | 42 | CHA |
| +021+ | 1.64 | Reb Russell | 77 | CHA |
| +024+ | 1.47 | Cliff Curtis | 45.7 | LAN |
| +025+ | 1.4 | Bill James | 60.3 | ATL |
| +028+ | 1.3 | Vean Gregg | 74.7 | CLE |
| XXXXX | 1.23 | Christy Mathewson | 72 | SFN |
| XXXXX | 1.16 | Bob Harmon | 54.3 | SLN |
| XXXXX | 0.97 | Babe Adams | 75 | PIT |
| XXXXX | 0.92 | Earl Hamilton | 75.3 | BAL |
| XXXXX | 0.92 | Dwight Stone | 48.7 | BAL |
| XXXXX | 0.88 | Jean Dubuc | 67 | DET |
| XXXXX | 0.87 | George Baumgardner | 65.7 | BAL |
| XXXXX | 0.78 | Frank Allen | 63 | LAN |
| XXXXX | 0.74 | Eddie Stack | 26 | LAN |
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