| Starter | Tm | Tier | Game |
|---|---|---|---|
| Reb Russell | CHA | 2.35 | 191308040_CHA_MIN |
| Eddie Plank | OAK | 2.26 | 191308050_CLE_OAK |
| Ad Brennan | PHI | 1.71 | 191308030_PHI_SLN |
| Rube Marquard | SFN | 1.56 | 191308050_SFN_PIT |
| Babe Adams | PIT | 1.15 | 191308050_SFN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jimmy Lavender | CHN | -2.55 | 191308030_LAN_CHN |
| Howie Camnitz | PIT | -1.49 | 191308040_SFN_PIT |
| Carl Weilman | BAL | -0.66 | 191308052_BAL_BOS |
| Ed Willett | DET | -0.57 | 191308040_DET_NYA |
| Ray Keating | NYA | -0.36 | 191308050_DET_NYA |
Based on accumulated WAA for this season up to 1913-08-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.38 | Walter Johnson | 228.3 | MIN |
| +002+ | 6.67 | Jim Scott | 204.3 | CHA |
| +003+ | 6.23 | Eddie Cicotte | 169.3 | CHA |
| +005+ | 5.55 | Christy Mathewson | 215.7 | SFN |
| +008+ | 5.14 | Reb Russell | 223.7 | CHA |
| +009+ | 5.09 | Ad Brennan | 157.7 | PHI |
| +012+ | 4.77 | Willie Mitchell | 185 | CLE |
| +015+ | 3.83 | Chief Bender | 162.7 | OAK |
| +016+ | 3.51 | Eddie Plank | 189.7 | OAK |
| +017+ | 3.42 | Joe Boehling | 137.7 | MIN |
| +019+ | 3.27 | Babe Adams | 215.7 | PIT |
| +020+ | 3.2 | Cy Falkenberg | 195.3 | CLE |
| +022+ | 3.02 | Earl Hamilton | 207 | BAL |
| +024+ | 2.91 | Tom Seaton | 198.7 | PHI |
| +026+ | 2.84 | Pete Alexander | 197.7 | PHI |
| +029+ | 2.77 | Vean Gregg | 192.3 | CLE |
| +031+ | 2.65 | Dutch Leonard | 162 | BOS |
| +034+ | 2.54 | Fred Blanding | 133 | CLE |
| +036+ | 2.46 | Al Demaree | 132 | SFN |
| +040+ | 2.32 | Jeff Tesreau | 187.3 | SFN |
| +043+ | 2.16 | Rube Marquard | 182 | SFN |
| +047+ | 1.99 | Frank Allen | 129.3 | LAN |
| +055+ | 1.85 | Ray Fisher | 175 | NYA |
| +054+ | 1.85 | Bert Humphries | 119.3 | CHN |
| +056+ | 1.84 | Ray Caldwell | 45.3 | NYA |
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