| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Scott | CHA | 4.64 | 191307230_MIN_CHA |
| Christy Mathewson | SFN | 3.24 | 191307222_PIT_SFN |
| Vean Gregg | CLE | 1.81 | 191307220_BOS_CLE |
| Chief Bender | OAK | 1.72 | 191307230_OAK_BAL |
| Babe Adams | PIT | 1.29 | 191307222_PIT_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Otto Hess | ATL | -3.3 | 191307221_CIN_ATL |
| Jimmy Lavender | CHN | -1.52 | 191307221_CHN_PHI |
| George Chalmers | PHI | -1.23 | 191307230_CHN_PHI |
| Roy Mitchell | BAL | -1.02 | 191307220_OAK_BAL |
| Bob Groom | MIN | -0.81 | 191307220_MIN_CHA |
Based on accumulated WAA for this season up to 1913-07-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.14 | Walter Johnson | 219.3 | MIN |
| +002+ | 6.54 | Jim Scott | 186.7 | CHA |
| +003+ | 6.05 | Eddie Cicotte | 157 | CHA |
| +004+ | 5.42 | Reb Russell | 205.7 | CHA |
| +007+ | 5.09 | Ad Brennan | 141.7 | PHI |
| +011+ | 4.51 | Christy Mathewson | 197.7 | SFN |
| +012+ | 4.42 | Eddie Plank | 171.7 | OAK |
| +013+ | 4.22 | Willie Mitchell | 167 | CLE |
| +014+ | 3.85 | Cy Falkenberg | 185.3 | CLE |
| +015+ | 3.72 | Earl Hamilton | 190 | BAL |
| +016+ | 3.65 | Chief Bender | 155.7 | OAK |
| +019+ | 3.26 | Babe Adams | 189.7 | PIT |
| +022+ | 2.91 | Tom Seaton | 182.7 | PHI |
| +024+ | 2.83 | Joe Boehling | 110.7 | MIN |
| +029+ | 2.52 | Vean Gregg | 181.3 | CLE |
| +032+ | 2.38 | Rube Marquard | 164 | SFN |
| +042+ | 1.96 | Fred Blanding | 106.3 | CLE |
| +043+ | 1.96 | Bert Humphries | 102.3 | CHN |
| +045+ | 1.88 | Dutch Leonard | 141 | BOS |
| +046+ | 1.84 | George Baumgardner | 149.7 | BAL |
| +058+ | 1.63 | Jeff Tesreau | 171.3 | SFN |
| +061+ | 1.52 | Ray Fisher | 157 | NYA |
| +062+ | 1.51 | Al Demaree | 115.3 | SFN |
| +067+ | 1.42 | Russ Ford | 138.7 | NYA |
| +071+ | 1.26 | Frank Allen | 98.7 | LAN |
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