| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eddie Plank | OAK | 4.53 | 191306300_OAK_NYA |
| Jim Scott | CHA | 4.11 | 191306280_CLE_CHA |
| Vean Gregg | CLE | 3.84 | 191306300_CLE_BAL |
| Nap Rucker | LAN | 3.45 | 191306300_ATL_LAN |
| Smoky Joe Wood | BOS | 1.49 | 191306300_MIN_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jimmy Lavender | CHN | -1.8 | 191306300_PIT_CHN |
| Bob Groom | MIN | -1.35 | 191306300_MIN_BOS |
| Al Schulz | NYA | -0.98 | 191306300_OAK_NYA |
| Hub Perdue | ATL | -0.89 | 191306300_ATL_LAN |
| Roy Mitchell | BAL | -0.87 | 191306290_BAL_DET |
Based on accumulated WAA for this season up to 1913-06-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.53 | Walter Johnson | 164 | MIN |
| +002+ | 5.25 | Jim Scott | 132.7 | CHA |
| +003+ | 5.14 | Reb Russell | 153.7 | CHA |
| +004+ | 4.42 | Eddie Cicotte | 101.7 | CHA |
| +005+ | 4.14 | Eddie Plank | 134.3 | OAK |
| +009+ | 3.68 | Chief Bender | 105.7 | OAK |
| +012+ | 3.47 | Vean Gregg | 154.7 | CLE |
| +014+ | 3.03 | Christy Mathewson | 144.7 | SFN |
| +016+ | 2.78 | Tom Seaton | 152.7 | PHI |
| +025+ | 2.15 | Cy Falkenberg | 130.7 | CLE |
| +026+ | 2 | Nap Rucker | 134.3 | LAN |
| +027+ | 1.98 | Pete Alexander | 129.3 | PHI |
| +028+ | 1.97 | Babe Adams | 135 | PIT |
| +033+ | 1.81 | Jeff Tesreau | 136 | SFN |
| +036+ | 1.77 | Dutch Leonard | 97 | BOS |
| +037+ | 1.7 | Cliff Curtis | 84 | LAN |
| +043+ | 1.44 | Charlie Smith | 73.7 | CHN |
| +044+ | 1.42 | Larry Cheney | 136 | CHN |
| +045+ | 1.42 | Smoky Joe Wood | 118.3 | BOS |
| +048+ | 1.39 | Eddie Stack | 65.3 | LAN |
| +049+ | 1.37 | Earl Hamilton | 136 | BAL |
| +051+ | 1.35 | Willie Mitchell | 102.3 | CLE |
| XXXXX | 1.2 | George Baumgardner | 111.3 | BAL |
| XXXXX | 1.14 | Bert Humphries | 61 | CHN |
| XXXXX | 1.11 | Pat Ragan | 128 | LAN |
_