| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 14.82 | 191308020_DET_MIN |
| Jim Scott | CHA | 5.44 | 191308020_CHA_NYA |
| Christy Mathewson | SFN | 4.82 | 191308010_SFN_CHN |
| Ad Brennan | PHI | 1.71 | 191308030_PHI_SLN |
| Vean Gregg | CLE | 1.47 | 191308021_CLE_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Otto Hess | ATL | -3.08 | 191308010_ATL_SLN |
| Jimmy Lavender | CHN | -2.55 | 191308030_LAN_CHN |
| Bob Groom | MIN | -1.73 | 191308010_DET_MIN |
| Chief Johnson | CIN | -1.23 | 191308010_PHI_CIN |
| Bob Harmon | SLN | -1.12 | 191308020_ATL_SLN |
Based on accumulated WAA for this season up to 1913-08-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.41 | Walter Johnson | 228.3 | MIN |
| +002+ | 7.08 | Jim Scott | 203.7 | CHA |
| +003+ | 5.72 | Eddie Cicotte | 162 | CHA |
| +004+ | 5.54 | Christy Mathewson | 215.7 | SFN |
| +006+ | 5.38 | Reb Russell | 220.7 | CHA |
| +008+ | 5.09 | Ad Brennan | 157.7 | PHI |
| +012+ | 4.76 | Willie Mitchell | 185 | CLE |
| +015+ | 3.84 | Chief Bender | 162.7 | OAK |
| +016+ | 3.81 | Cy Falkenberg | 192.3 | CLE |
| +017+ | 3.46 | Eddie Plank | 188.7 | OAK |
| +019+ | 3.02 | Earl Hamilton | 207 | BAL |
| +021+ | 2.91 | Tom Seaton | 198.7 | PHI |
| +024+ | 2.85 | Babe Adams | 206.7 | PIT |
| +025+ | 2.79 | Joe Boehling | 128.7 | MIN |
| +026+ | 2.76 | Vean Gregg | 192.3 | CLE |
| +027+ | 2.73 | Rube Marquard | 178.3 | SFN |
| +034+ | 2.31 | Jeff Tesreau | 187.3 | SFN |
| +040+ | 2.21 | Pete Alexander | 188.7 | PHI |
| +041+ | 2.13 | Al Demaree | 124.3 | SFN |
| +045+ | 2.04 | Ray Fisher | 166 | NYA |
| +046+ | 2.01 | Dutch Leonard | 153 | BOS |
| +049+ | 1.89 | Fred Blanding | 124 | CLE |
| +053+ | 1.86 | Bert Humphries | 119.3 | CHN |
| +057+ | 1.75 | Ray Caldwell | 38.3 | NYA |
| +063+ | 1.57 | George Baumgardner | 166.7 | BAL |
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