| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 13.37 | 191307210_MIN_CHA |
| Christy Mathewson | SFN | 3.24 | 191307222_PIT_SFN |
| Eddie Plank | OAK | 3.21 | 191307200_OAK_BAL |
| Reb Russell | CHA | 2.57 | 191307210_MIN_CHA |
| Vean Gregg | CLE | 1.81 | 191307220_BOS_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Otto Hess | ATL | -3.3 | 191307221_CIN_ATL |
| Jimmy Lavender | CHN | -1.52 | 191307221_CHN_PHI |
| Ed Willett | DET | -1.1 | 191307210_NYA_DET |
| 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 1913-07-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.79 | Walter Johnson | 208 | MIN |
| +002+ | 6.28 | Jim Scott | 180.7 | CHA |
| +003+ | 6.12 | Eddie Cicotte | 152.7 | CHA |
| +004+ | 5.54 | Ad Brennan | 139.7 | PHI |
| +005+ | 5.33 | Reb Russell | 205 | CHA |
| +011+ | 4.49 | Christy Mathewson | 197.7 | SFN |
| +012+ | 4.47 | Earl Hamilton | 183 | BAL |
| +013+ | 4.41 | Eddie Plank | 171.7 | OAK |
| +014+ | 3.87 | Cy Falkenberg | 176.3 | CLE |
| +016+ | 3.53 | Willie Mitchell | 154 | CLE |
| +017+ | 3.21 | Babe Adams | 189.7 | PIT |
| +020+ | 3.18 | Chief Bender | 146.7 | OAK |
| +021+ | 3.17 | Tom Seaton | 181 | PHI |
| +027+ | 2.72 | Smoky Joe Wood | 144.3 | BOS |
| +029+ | 2.55 | Vean Gregg | 181.3 | CLE |
| +031+ | 2.31 | Joe Boehling | 101.7 | MIN |
| +032+ | 2.26 | George Baumgardner | 147.3 | BAL |
| +038+ | 1.98 | Fred Blanding | 106.3 | CLE |
| +044+ | 1.86 | Dutch Leonard | 135.3 | BOS |
| +048+ | 1.73 | Rube Marquard | 155 | SFN |
| +054+ | 1.61 | Jeff Tesreau | 171.3 | SFN |
| +062+ | 1.51 | Bert Humphries | 96.3 | CHN |
| +064+ | 1.5 | Al Demaree | 115.3 | SFN |
| +067+ | 1.47 | Russ Ford | 138.7 | NYA |
| +069+ | 1.25 | Frank Allen | 98.7 | LAN |
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