| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dan Griner | SLN | -5.58 | 191308070_LAN_SLN |
| Jimmy Lavender | CHN | -2.83 | 191308080_PHI_CHN |
| Otto Hess | ATL | -2.37 | 191308070_ATL_PIT |
| Al Schulz | NYA | -1.6 | 191308070_DET_NYA |
| Earl Moseley | BOS | -0.94 | 191308080_DET_BOS |
Based on accumulated WAA for this season up to 1913-08-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.87 | Walter Johnson | 241.3 | MIN |
| +002+ | 7.1 | Jim Scott | 213.3 | CHA |
| +003+ | 6.65 | Eddie Cicotte | 175.3 | CHA |
| +006+ | 5.77 | Reb Russell | 232.7 | CHA |
| +009+ | 5.14 | Christy Mathewson | 227.7 | SFN |
| +010+ | 5.11 | Ad Brennan | 157.7 | PHI |
| +013+ | 4.37 | Willie Mitchell | 191 | CLE |
| +015+ | 3.84 | Joe Boehling | 146.7 | MIN |
| +016+ | 3.82 | Chief Bender | 171.7 | OAK |
| +017+ | 3.47 | Eddie Plank | 189.7 | OAK |
| +018+ | 3.45 | Babe Adams | 224.7 | PIT |
| +020+ | 3.19 | Fred Blanding | 142 | CLE |
| +021+ | 3 | Pete Alexander | 205.7 | PHI |
| +026+ | 2.72 | Cy Falkenberg | 197.3 | CLE |
| +027+ | 2.7 | Earl Hamilton | 217 | BAL |
| +031+ | 2.58 | Tom Seaton | 205.7 | PHI |
| +035+ | 2.45 | Vean Gregg | 199.3 | CLE |
| +038+ | 2.4 | Dutch Leonard | 164.7 | BOS |
| +040+ | 2.37 | Frank Allen | 137.3 | LAN |
| +042+ | 2.28 | Jeff Tesreau | 192.7 | SFN |
| +044+ | 2.28 | Russ Ford | 164 | NYA |
| +043+ | 2.28 | Al Demaree | 135.3 | SFN |
| +045+ | 2.24 | Rube Marquard | 189 | SFN |
| +050+ | 2.02 | Bob Shawkey | 36 | OAK |
| +052+ | 1.91 | Eddie Stack | 96 | TOT |
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