| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Groom | MIN | -2.61 | 191308100_MIN_CLE |
| Bob Harmon | SLN | -1.78 | 191308100_LAN_SLN |
| Howie Camnitz | PIT | -1.2 | 191308111_CIN_PIT |
| Chief Johnson | CIN | -0.81 | 191308100_SFN_CIN |
| Bullet Joe Bush | OAK | -0.62 | 191308110_CHA_OAK |
Based on accumulated WAA for this season up to 1913-08-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.88 | Walter Johnson | 241.3 | MIN |
| +002+ | 6.69 | Eddie Cicotte | 181.3 | CHA |
| +004+ | 6.36 | Jim Scott | 214.3 | CHA |
| +007+ | 5.38 | Reb Russell | 232.7 | CHA |
| +009+ | 5.16 | Christy Mathewson | 227.7 | SFN |
| +010+ | 5.12 | Ad Brennan | 157.7 | PHI |
| +011+ | 4.82 | Willie Mitchell | 200 | CLE |
| +015+ | 3.9 | Babe Adams | 233.7 | PIT |
| +016+ | 3.85 | Joe Boehling | 146.7 | MIN |
| +017+ | 3.83 | Chief Bender | 171.7 | OAK |
| +019+ | 3.48 | Eddie Plank | 189.7 | OAK |
| +020+ | 3.2 | Fred Blanding | 142 | CLE |
| +022+ | 3.01 | Pete Alexander | 205.7 | PHI |
| +026+ | 2.74 | Cy Falkenberg | 197.3 | CLE |
| +028+ | 2.73 | Earl Hamilton | 217 | BAL |
| +033+ | 2.59 | Tom Seaton | 205.7 | PHI |
| +037+ | 2.38 | Frank Allen | 137.3 | LAN |
| +040+ | 2.3 | Jeff Tesreau | 192.7 | SFN |
| +042+ | 2.29 | Russ Ford | 164 | NYA |
| +041+ | 2.29 | Al Demaree | 135.3 | SFN |
| +044+ | 2.21 | Dutch Leonard | 173.7 | BOS |
| +046+ | 2.14 | Ray Caldwell | 55.3 | NYA |
| +047+ | 2.12 | Vean Gregg | 206.3 | CLE |
| +049+ | 2.04 | Rube Marquard | 198 | SFN |
| +050+ | 2.02 | Bob Shawkey | 36 | OAK |
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