| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 14.72 | 191307130_MIN_CLE |
| Jim Scott | CHA | 4.93 | 191307130_BOS_CHA |
| Vean Gregg | CLE | 3.48 | 191307120_MIN_CLE |
| Chief Bender | OAK | 3.02 | 191307110_OAK_CLE |
| Smoky Joe Wood | BOS | 1.87 | 191307122_BOS_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dan Griner | SLN | -2.39 | 191307120_SLN_PHI |
| Byron Houck | OAK | -1.11 | 191307131_OAK_DET |
| Lefty Tyler | ATL | -1.08 | 191307110_SLN_ATL |
| Nick Cullop | CLE | -0.94 | 191307130_MIN_CLE |
| Roy Mitchell | BAL | -0.88 | 191307130_NYA_BAL |
Based on accumulated WAA for this season up to 1913-07-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.25 | Walter Johnson | 194 | MIN |
| +002+ | 6.22 | Jim Scott | 164.7 | CHA |
| +003+ | 5.57 | Reb Russell | 175.7 | CHA |
| +004+ | 5.36 | Eddie Cicotte | 130.7 | CHA |
| +010+ | 3.96 | Ad Brennan | 111.7 | PHI |
| +011+ | 3.61 | Earl Hamilton | 165 | BAL |
| +012+ | 3.58 | Cy Falkenberg | 158.3 | CLE |
| +014+ | 3.47 | Chief Bender | 128.7 | OAK |
| +016+ | 3.27 | Eddie Plank | 153.7 | OAK |
| +017+ | 3.23 | Christy Mathewson | 171.7 | SFN |
| +020+ | 2.89 | Vean Gregg | 163.3 | CLE |
| +024+ | 2.58 | Willie Mitchell | 136 | CLE |
| +025+ | 2.54 | Smoky Joe Wood | 140.7 | BOS |
| +030+ | 2.31 | Babe Adams | 163 | PIT |
| +034+ | 2.13 | Larry Cheney | 164.7 | CHN |
| +043+ | 1.8 | Joe Boehling | 84.7 | MIN |
| +044+ | 1.78 | Rube Marquard | 136 | SFN |
| +049+ | 1.59 | Charlie Smith | 90.7 | CHN |
| +054+ | 1.49 | Pete Alexander | 150.7 | PHI |
| +055+ | 1.44 | Al Demaree | 98.3 | SFN |
| +057+ | 1.4 | Cliff Curtis | 99 | LAN |
| +059+ | 1.36 | Walt Leverenz | 93.3 | BAL |
| +060+ | 1.35 | Frank Allen | 89.7 | LAN |
| +064+ | 1.27 | George Baumgardner | 128.3 | BAL |
| XXXXX | 1.25 | Ray Fisher | 140 | NYA |
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